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WHAT YOU SHOULD HAVE READ BUT….2010 ,[object Object],University of Verona, Italy Attilio Boner
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Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483 ,[object Object],prevalence of wheeze in the past 12 months 40 – 35 – 30 – 25 – 20 – 15 – 10 – 5 – 0   0.7%  37.6%  2.4%  32.6%  in the 13–14 year olds in the 6–7 year olds
The prevalence of symptoms of severe asthma, defined as ≥ 4 attacks of wheeze or ≥ 1 night per week sleep disturbance from wheeze or wheeze affecting speech in the past 12 months. 0.1%  20%  0%  16%  in the 13–14 year olds in the 6–7 year olds 30 – 20 – 10 – 0 ,[object Object],Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
Prevalence of  current wheeze  according to the written questionnaire  in the 13–14 year age group .  The symbols indicate prevalence values of  <5%  (blue square),  5 to <10%  (green circle),  10 to <20%  (yellow diamond) and  >20%  (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
Prevalence of symptoms of  severe asthma  according to the written questionnaire in the  13–14 year age   group .  The symbols indicate prevalence values of  <2.5%  (blue square),  2.5 to <5%  (green circle),  5 to <7.5%  (yellow diamond) and  >7.5%  (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
Prevalence of  current wheeze in the 6–7 year age   group .  The symbols indicate prevalence values of <5%  (blue square),  5 to <10%  (green circle),  10 to <20%  (yellow diamond) and  >20%  (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
Prevalence of symptoms of  severe asthma in the 6–7 year age group .  The symbols indicate prevalence values of  <2.5%  (blue square),  2.5 to <5%  (green circle),  5 to <7.5%  (yellow diamond) and  >7.5%  (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
Establishing the sequential progression of multiple allergic diagnoses in a UK birth cohort using the General Practice Research Database   Punekar   CEA 2009;39:1889 ,[object Object],[object Object],60 - 50 – 40 – 30 – 20 – 10 – 0 52% % children with at least one diagnosed allergic condition
OR for development of 2 – 1 – 0 1.59 1.29 0.64 asthma eczema eczema eczema asthma rhinitis in children first diagnosed with Establishing the sequential progression of multiple allergic diagnoses in a UK birth cohort using the General Practice Research Database   Punekar   CEA 2009;39:1889
Conclusions:  Among children diagnosed with multiple allergic diseases there is likely to be a number of  variants of 'the allergic march'.  Of these, the diagnosis of  eczema followed by asthma, which is in turn followed by rhinitis, is the most common trajectory .  Some diagnoses indicate a possible strong protective effect of manifesting further likely allergic diagnoses.  Establishing the sequential progression of multiple allergic diagnoses in a UK birth cohort using the General Practice Research Database   Punekar   CEA 2009;39:1889
Establishing the incidence and prevalence of clinician-diagnosed allergic conditions in children and adolescents using routinely collected data from general practices.  Punekar  C EA 2010;39:1209  ,[object Object],[object Object],18-Year Prevalence of  Clinician-Diagnosed Condition  Eczema Asthma 50 – 40 – 30 – 20 – 10 – 0 36.5% 22.9% 11.4% Rhinitis
Establishing the incidence and prevalence of clinician-diagnosed allergic conditions in children and adolescents using routinely collected data from general practices.  Punekar  C EA 2010;39:1209  ,[object Object],[object Object],Eczema Asthma 50 – 40 – 30 – 20 – 10 – 0 36.5% 22.9% 11.4% Rhinitis The 18-year prevalence of  > 1 and all three conditions was 16.1% and 2.5%, respectively.  18-Year Prevalence of  Clinician-Diagnosed Condition
Establishing the incidence and prevalence of clinician-diagnosed allergic conditions in children and adolescents using routinely collected data from general practices.  Punekar  C EA 2010;39:1209  ,[object Object],[object Object],Eczema Asthma 50 – 40 – 30 – 20 – 10 – 0 36.5% 22.9% 11.4% Rhinitis A significant proportion of children experience and are diagnosed with multiple allergic conditions in early childhood.  18-Year Prevalence of  Clinician-Diagnosed Condition
Establishing the incidence and prevalence of clinician-diagnosed allergic conditions in children and adolescents using routinely collected data from general practices.  Punekar  C EA 2010;39:1209  ,[object Object],[object Object],Patterns of allergic disease co-morbidity in patients with complete follow-up (n=24 112)
Time trends in the prevalence of peanut allergy:  three cohorts of children from the same geographical location in the UK.   Venter Allergy 2010:65:103  ,[object Object],[object Object],1989-1990 1.3% 4.0 – 3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 Peanut Sensitization Rate 1994-1996 2001-2002 3.3% 2.0% ns BORN p=0.03
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Vacuum-assisted delivery is associated with late-onset asthma .  Keski-Nisula  Allergy 2009:64:1530  ,[object Object],[object Object],[object Object],LATE-ONSET ASTHMA   In Children  Delivered  by Vacuum Extraction   OR for 1.80 2.41 P<0.001 P<0.001 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 DOCTOR-DIAGNOSED ASTHMA AT ANY TIME
Vacuum-assisted delivery is associated with late-onset asthma .  Keski-Nisula  Allergy 2009:64:1530  ,[object Object],[object Object],[object Object],[object Object]
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  Background:  Mental health has been reported to be associated with allergy, but only a few cohort studies have assessed if neurodevelopment predicts atopy. Objective:  To investigate if neurobehavioral status of healthy 4-year-old children was associated with specific immunoglobulin E (IgE) at the same age and skin prick test results 2 years later.
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  % CHILDREN WITH ATOPY 12% 17% 4  6 20 – 15 – 10 – 0 5 – 0 ,[object Object],[object Object],[object Object],AGE YEARS
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  OR  FOR ATOPY AT AGE 6 YEARS 3.06 3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 Lowest Tertile (Scorings ≤90 Points)  of the General Cognitive Scale ,[object Object],[object Object],[object Object]
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  OR  FOR ATOPY AT AGE 6 YEARS 3.06 3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 Lowest Tertile (Scorings ≤90 Points)  of the General Cognitive Scale ,[object Object],[object Object],[object Object],Neuropsychologic functioning and later atopy are negatively associated in preschool age children.
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  The pathways between neurobehavior and atopy are  not clearly elucidated  One of the hypotheses is that atopic children are more likely to have clinical disturbances, such as symptoms  of asthma or wheezing (and their corresponding treatments) that may affect behavior. These factors could modify the psychosocial environment of the child and create a vicious cycle, worsening the child neurodevelopment.
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  The pathways between neurobehavior and atopy are  not clearly elucidated  One of the hypotheses is that atopic children are more likely to have clinical disturbances, such as symptoms  of asthma or wheezing (and their corresponding treatments) that may affect behavior. These factors could modify the psychosocial environment of the child and create a vicious cycle, worsening the child neurodevelopment.  However, our results appear to argue against this hypothesis
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  Another hypothesis suggests that lower behavior scores might be indicators of chronic or acute  stresses in the child's life that may affect atopy as well. However, we took into account many variables  that indicate factors that could influence child stress or its management, such as sleeping hours, physical activity and ways of entertainment, parental social class and level of education, smoking, alcohol consumption, maternal parity, and marital status.
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  Another hypothesis suggests that lower behavior scores might be indicators of chronic or acute  stresses in the child's life that may affect atopy as well. However, we took into account many variables  that indicate factors that could influence child stress or its management, such as sleeping hours, physical activity and ways of entertainment, parental social class and level of education, smoking, alcohol consumption, maternal parity, and marital status.  None of these factors confounded the associations' strength.
Neuropsychologic status at the age 4 years and  atopy in a population-based birth cohort   Julvez  Allergy 2009:64:1279  This suggests the existence of direct physiologic pathways involved in the association between neurobehavior and atopy, maybe sharing genetic influences. Altered HPA function and allergic disorders may be part of these pathways, probably secondary to gene–environment interactions. elevated endogenous cortisol produced by HPA may affect the developing immune system with subsequent atopic responses and consequent allergic disorders
Lower cortisol levels in children with asthma exposed to recurrent maternal distress from birth Dreger   JACI  2010:125:116  ,[object Object],[object Object]
Lower cortisol levels in children with asthma exposed to recurrent maternal distress from birth Dreger   JACI  2010:125:116  ,[object Object],[object Object],Among children exposed to recurrent maternal distress, an elevation in cortisol levels occurs in response to an acute stressor ( venipuncture ) when there is no accompanying diagnosis of asthma, whereas, in comparison, children with asthma tend to exhibit lower cortisol levels.
Neuroticism, extraversion, stressful life events and asthma: a cohort study of middle-aged adults   Loerbroks   Allergy 2009:64:1444  Background:  Stressful life events can trigger asthma exacerbations, but could also contribute to the development of incident asthma. However, only few studies have investigated the association between stressful life events and adult asthma prospectively.  Likewise, stress-related personality traits (e.g. neuroticism  and extraversion) may increase asthma risk, but this has been examined in only one prospective study.  We therefore aimed to investigate the association between neuroticism, extraversion, stressful life events and incident asthma.
Neuroticism, extraversion, stressful life events and asthma: a cohort study of middle-aged adults   Loerbroks   Allergy 2009:64:1444  ,[object Object],[object Object],HIGH VS LOW NEUROTICISM  RR of Developing  Asthma in 2002-2003  3.07 3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 Neuroticism is an enduring tendency to experience negative emotional states
Neuroticism, extraversion, stressful life events and asthma: a cohort study of middle-aged adults   Loerbroks   Allergy 2009:64:1444  Having broken off a life partnership   3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 2.24 Death of a close person  Unemployment  1.06 1.65 ,[object Object],[object Object],RR of Developing  Asthma in 2002-2003
Neuroticism, extraversion, stressful life events and asthma: a cohort study of middle-aged adults   Loerbroks   Allergy 2009:64:1444  Having broken off a life partnership   3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0 2.24 Death of a close person  Unemployment  1.06 1.65 ,[object Object],[object Object],RR of Developing  Asthma in 2002-2003  Interpersonal conflicts may increase asthma risk, possibly along an immunological pathway.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Stress Activates the hypothalamic-pituitary-adrenal axis Impaired glucocorticoid receptor expression and/or function Promote and amplify airway inflammation in response to infections, allergen, or irritant exposure Release of endogenous glucocorticoids
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  glucocorticoid binding to the intracellular receptor (GR) molecular rearrangement of the GR–heat shock protein 90 heterocomplex and interacting with specific DNA elements, termed glucocorticoid response elements (GREs) GR nuclear localization, homodimerization,  and DNA binding GR signaling and glucocorticoid resistance in airway inflammation.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Positive GRE mediates transcriptional upregulation of anti-inflammatory genes such as NF-kB inhibitor a (IkB α ), the glucocorticoid-inducible leucine zipper  (GILZ) , or IL 10. Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Negative GRE mediates transcriptional downregulation. Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus.
Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus. Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  In monomeric form, the activated GR may interact with other transcription factors such as NF-kB. This interaction can occur indirectly through transcriptional cofactor (HDAC) binding  (C)  or by RNA polymerase dephosphorylation  (D).
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Hypothesized mechanisms by which  glucocorticoid resistance could occur. A , Glucocorticoid binding to the GR induces molecular rearrangement of the GR–heat shock protein 90 heterocomplex and promotes GR nuclear translocation, homodimerization, and DNA binding.  B , This process can be modulated by GR/NF-kB interactions, directly by affecting transactivation (GRE-mediated) as well as transrepression of GR functions.  C , Indirect inhibition of the GR function may be achieved by transcription factor ‘‘tethering.’’
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  1) Alveolar epithelial cells, Clara cells, and cells of submucosal glands in the lung. Surfactant protein D a constitutive mediator of antigen clearance and is capable of interacting with cellular components of both the innate and adaptive immune systems on mucosal surfaces. Significantly increased SP-D levels. It is possible that the beneficial effects of glucocorticoid therapy are partially mediated by enhanced SP-D expression in the lung. 2) Corticosteroid treatment Role of the epithelial product surfactant protein D  in asthmatic inflammation.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  1) Alveolar epithelial cells, Clara cells, and cells of submucosal glands in the lung. Surfactant protein D a constitutive mediator of antigen clearance and is capable of interacting with cellular components of both the innate and adaptive immune systems on mucosal surfaces. Significantly increased SP-D levels. It is possible that the beneficial effects of glucocorticoid therapy are partially mediated by enhanced SP-D expression in the lung. 2) Corticosteroid treatment Role of the epithelial product surfactant protein D  in asthmatic inflammation. Studies on SP-D–deficient mice demonstrated enhanced susceptibility to inflammation in infectious and inflammatory models, including allergic airway sensitization, and abnormal activation of alveolar macrophages and dendritic cells.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response. Altered corticosteroid responsiveness of airway epithelial cells may inhibit SP-D production.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response. Stress abrogates inhibitory effects of corticosteroid  on responsiveness of proinflammatory dendritic cells.
Social stress and asthma: The role of corticosteroid Insensitivity  Haczku  JACI   2010;125:550  Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response. Diminished SP-D levels will result in a failure to protect against dendritic cell and T H 2-cell activation and the consequent allergic airway response.
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The interaction between early life upper respiratory tract infection and birth during the pollen season on rye-sensitized hay fever and ryegrass sensitization –  a birth cohort study.   Kemp   Pediatr Allergy Immunol 2009:20:536   ,[object Object],[object Object]
The interaction between early life upper respiratory tract infection and birth during the pollen season on rye-sensitized hay fever and ryegrass sensitization –  a birth cohort study.   Kemp   Pediatr Allergy Immunol 2009:20:536   ,[object Object],[object Object],[object Object],[object Object],% Children Born During the Ryegrass Pollen Season 9.6% 12.5% 15 – 10 – 0 5 – 0 1 st   2 nd BIRTH COHORTS
The interaction between early life upper respiratory tract infection and birth during the pollen season on rye-sensitized hay fever and ryegrass sensitization –  a birth cohort study.   Kemp   Pediatr Allergy Immunol 2009:20:536   OR  FOR RYE GRASS SENSITIZATION   5.8 BORN DURING THE POLLEN SEASON BORN OUTSIDE THE POLLEN SEASON 6 – 5 – 4 – 3 – 2 – 1 – 0 0.62 IN CHILDREN WITH  Upper Respiratory Tract Infections  in the 1° Month of Life
The interaction between early life upper respiratory tract infection and birth during the pollen season on rye-sensitized hay fever and ryegrass sensitization –  a birth cohort study.   Kemp   Pediatr Allergy Immunol 2009:20:536   OR  FOR RYE GRASS SENSITIZATION   5.8 BORN DURING THE POLLEN SEASON BORN OUTSIDE THE POLLEN SEASON 6 – 5 – 4 – 3 – 2 – 1 – 0 0.62 Early life viral URI interacts with ryegrass allergen exposure in the development of rye grass allergen sensitization and rye grass sensitized hay fever symptoms.  IN CHILDREN WITH  Upper Respiratory Tract Infections  in the 1° Month of Life
[object Object],[object Object],[object Object],AT AGE 8 YRS  OR  FOR 0.99 EARLY DAY CARE 0.86 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 ASTHMA ALLERGIC  SENSITIZATION Early Daycare Is Associated with an Increase in Airway Symptoms in Early Childhood but Is No Protection against Asthma or Atopy at 8 Years   Caudri   AJRCCM   2009:180:491
[object Object],[object Object],[object Object],AT AGE 8 YRS  OR  FOR 0.99 EARLY DAY CARE 0.86 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 ASTHMA ALLERGIC  SENSITIZATION Early Daycare Is Associated with an Increase in Airway Symptoms in Early Childhood but Is No Protection against Asthma or Atopy at 8 Years   Caudri   AJRCCM   2009:180:491  ,[object Object],[object Object]
Background:  Asthma typically originates in early-life, and the impact of infection during immunologic maturation is a critical factor in disease pathogenesis. The progression of aberrant T H 2 cell responses and disease development has been attributed to a lack of infections. However, exposure to specific pathogens such as  Chlamydia  may alter immunologic programming and predispose to asthma.  Early-life chlamydial lung infection enhances allergic airways disease through age-dependent differences in immunopathology  Horvat  JACI  2010;125:617
[object Object],[object Object],Early-life  (neonatal and infant)   but not adult chlamydial infection  enhanced the development of  hallmark features of  asthma  in ovalbumin-induced allergic airways disease.   Early-life chlamydial lung infection enhances allergic airways disease through age-dependent differences in immunopathology  Horvat  JACI  2010;125:617
[object Object],[object Object],Early-life  (neonatal and infant)   but not adult chlamydial infection  enhanced the development of  hallmark features of  asthma  in ovalbumin-induced allergic airways disease.   Early-life chlamydial lung infection enhances allergic airways disease through age-dependent differences in immunopathology  Horvat  JACI  2010;125:617 Early-life respiratory chlamydial infections modulate immune responses, alter lung function and structure, and enhance the severity of allergic airways disease in later life.
0.34 Sensitization at both 2 and 5 years of age 1.0 – 0.5 – 0 ,[object Object],[object Object],[object Object],Early-life EBV infection protects against persistent  IgE sensitization   Saghafian-Hedengren  JACI 2010;125:433 In  5-year-olds who were infected with EBV before the age of 2 years  OR  for
4.64 Late onset IgE sensitization In children with contraction of EBV after 2 years of age   OR  for 5 - 4 - 3 – 2 – 1 – 0 Early-life EBV infection protects against persistent  IgE sensitization   Saghafian-Hedengren  JACI 2010;125:433 ,[object Object],[object Object],[object Object]
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The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. - 2.1  (paracetamol exposure in utero), - 1.5 to 3.2  (paracetamol use  in infancy or childhood)   - 2.9  (paracetamol use in adults) 1° Strength of effect: Increased asthma risk of up to:  Shaheen SO, Thorax 2002;57:958-63. Shaheen SO, Clin Exp Allergy 2005;35:18-25. Rebordosa C, Int J Epidemiol2008;37:583-90. Koniman R, Pediatr Allergy Immunol 2007;18:128-34. Garcia-Marcos L, Int Arch Allergy Immunol2008;149:33-7. Persky V, Ann Alle Asthma Immunol 2008;101:271-8. Perzanowski MS, JACI 2008;121(suppl):S231. Shaheen SO, Thorax. 2000;55:266–270. Shaheen S, Eur Respir J. 2008;32:1231–1236.  Davey G, J Allergy Clin Immunol. 2005;116:863–868. McKeever TM, Am J Respir Crit Care Med. 2005;171:966–971.  Barr RG , Am J Respir Crit Care Med. 2004;169:836–841.  Thomsen SF, J Asthma. 2008;45:675–676. Shaheen SO, Thorax 2002;57:958-63. Beasley R, Lancet 2008;372:1039-48.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. 2°Dose response: Present for paracetamol exposure -  in utero -  in   childhood   -  in adults Shaheen SO, Thorax 2002;57:958-63. Shaheen SO, Clin Exp Allergy 2005;35:18-25. Beasley R, Lancet. 2008;372:1039–1048.  Shaheen SO, Thorax. 2000;55:266–270.  Davey G, J Allergy Clin Immunol. 2005;116:863–868.  McKeever TM, Am J Respir Crit Care Med. 2005;171:966–971.  Barr RG, Am J Respir Crit Care Med. 2004;169:836–841.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 3° Consistency/Coherence: -   Consistency between  different  studies  in  different age groups   in  different populations   worldwide Shaheen SO, Thorax. 2002;57:958–963.  Shaheen SO, Clin Exp Allergy. 2005;35:18–25.  Rebordosa C, Int J Epidemiol. 2008;37:583–590.  Koniman R, Pediatr Allergy Immunol. 2007;18:128–134.  Garcia-Marcos L, Int Arch Allergy Immunol. 2008;149:33–37.  Persky V, Ann Allergy Asthma Immunol. 2008;101:271–278. Perzanowski MS, J Allergy Clin Immunol. 2008;121(suppl):S231.  Beasley R,  Lancet. 2008;372:1039–1048.  Shaheen SO, 2000;55:266–270.  Shaheen S, Eur Respir J. 2008;32:1231–1236.  Davey G, J Allergy Clin Immunol. 2005;116:863–868. McKeever TM, Am J Respir Crit Care Med. 2005;171:966–971.  Barr RG, Am J Respir Crit Care Med. 2004;169:836–841.  Thomsen SF, J Asthma. 2008;45:675–676.   Lesko SM, Pediatrics. 2002;109:e20.  Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 4° Exposure before response: Observed in studies of  paracetamol exposure: -  in the intrauterine  environment -  in infancy  -  in adult life Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. Shaheen SO, Thorax 2002;57:958-63. Shaheen SO, Clin Exp Allergy 2005;35:18-25. Rebordosa C, Int J Epidemiol2008;37:583-90. Koniman R, Pediatr Allergy Immunol 2007;18:128-34. Garcia-Marcos L, Int Arch Allergy Immunol2008;149:33-7. Persky V, Ann Alle Asthma Immunol 2008;101:271-8. Perzanowski MS, JACI 2008;121(suppl):S231. Beasley R, Lancet. 2008;372:1039–1048.  Barr RG, Am J Respir Crit Care Med. 2004;169:836–841. Thomsen SF, J Asthma. 2008;45:675–676.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 5° Biologic plausibility: -  Through  increased  oxidant- induced inflammation  and potentially  enhanced T H 2  response   Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. Nuttall SL, J Clin Pharmacy Ther. 2003;28:251–257.  Micheli L, Environ Health Perspect. 1994;102(suppl 9):63–64.  Dimova S, Int J Biochem Cell Biol. 2005;37:1727–1737.  Barnes PJ, Free Radic Biol Med. 1990;9:235–243. Peterson JD, Proc Natl Acad Sci U S A. 1998;95:3071–3076.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 6° Removal of exposure prevents disease:   -  Not yet examined  Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. but..Giuseppina and Michele
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 7°  Specificity:   -   No increased risk of asthma associated  with aspirin or other nonsteroidal  anti-inflammatory drugs Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. Kurth T, Thorax. 2008;63:514–518.  Barr RG, Am J Respir Crit Care Med. 2007;175:120–125.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 8° Temporal association:   -  International  trends of increasing  paracetamol use and increasing  prevalence of asthma Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. Varner AE, Ann Allergy Asthma Immunol. 1998;81:347–351  der W, N Engl J Med. 2006;355:2226–2235.  Bertolini A, CNS Drug Rev. 2006;12:250–275.
The acetaminophen and asthma hypothesis 10 years on: A case to answer.  Farquhar JACI 2009;124:649 9° Analogy:   -   Oxidant-induced airway    inflammation in asthma   (eg, ozone, other pollutants) -   protective effects of  antioxidant diet in asthma Summary of the evidence linking paracetamol use and asthma based on  Bradford Hill criteria  of causation  Hill AB. Proc R Soc Med 1965;58:295-300. Shaheen SO, Am J Respir Crit Care Med. 2001;164:1823–1828.  Rubin RN, Am J Respir Crit Care Med. 2004;169:393–398. McConnell R, Lancet. 2002;359:386–391.
Acetaminophen Use and the Risk of Asthma in Children and Adults A Systematic Review and Metaanalysis   Etminan CHEST 2009; 136:1316 OR   FOR ASTHMA IN CHILDREN 1.63 AMONG SUBJECTS USING ACETAMINOPHEN 2.0 – 1.5 – 1.0 – 0.5 – 0 ,[object Object],[object Object],[object Object],[object Object]
OR   FOR ASTHMA IN CHILDREN 1.28 PRENATAL 2.0 – 1.5 – 1.0 – 0.5 – 0 1.47 1.60 DURING 1 ST  YEAR OF LIFE 1 YEAR PRIOR TO THE DIAGNOSIS OF ASTHMA USE OF ACETAMINOPHEN Acetaminophen Use and the Risk of Asthma in Children and Adults A Systematic Review and Metaanalysis   Etminan CHEST 2009; 136:1316
Prevalence and risk factors of wheeze and eczema in  1-year-old children: the Butajira birth cohort, Ethiopia   Belyhun  C EA  2010; 40:619  11.5% Wheeze  Eczema 8.6% % Children at 1 Year with 15 – 10 – 0 5 – 0 ,[object Object],[object Object]
Prevalence and risk factors of wheeze and eczema in  1-year-old children: the Butajira birth cohort, Ethiopia   Belyhun  C EA  2010; 40:619  Maternal allergic history   OR  for Wheeze 3.0 Paracetamol use by the child   OR  for Eczema Maternal allergic history   3.68 Paracetamol use by the child   9 – 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0 11 – 10 – 11.0 2.6 4.0 – 3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0
Prevalence and risk factors of wheeze and eczema in  1-year-old children: the Butajira birth cohort, Ethiopia   Belyhun  C EA  2010; 40:619  Bed  Floor  Grass Matting OR  for Eczema  1.5 – 1.0 – 0.5 – 0 ,[object Object],[object Object],1.0 1.48 0.42 Child’s Sleeping Place
Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski  Thorax 2010;65:118 Background:   Acetaminophen has been associated with asthma and is in part metabolised via the glutathione pathway. Inner-city minority children have high asthma morbidity and a relatively high frequency of a minor allele variant in the  glutathione S transferase  Pi  gene (GSTP1). We hypothesised that prenatal acetaminophen exposure would predict wheeze at age 5 years in an inner-city minority cohort and examined whether this association was modified by common polymorphisms in genes related to the glutathione pathway.
Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski  Thorax 2010;65:118 ,[object Object],[object Object],[object Object],%  mothers reporting acetaminophen use during pregnancy 34% 35 - 30 - 25 – 20 – 15 – 10 – 5 – 0
Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski  Thorax 2010;65:118 %  children with current wheezing at age 5 years 27% 30 - 25 – 20 – 15 – 10 – 5 – 0 ,[object Object],[object Object],[object Object]
Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski  Thorax 2010;65:118 in children with prenatal exposure  to acetaminophen  OR  for  1.71 P= 0.003 2 – 1 – 0  The risk increased  monotonically with increasing number of days of prenatal acetaminophen exposure  (p trend <0.001). current wheeze
Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski  Thorax 2010;65:118 Association between days of acetaminophen use during pregnancy and current wheeze at age  5 years stratified by common  polymorphism  in the GSTP1 gene. The interaction between any prenatal acetaminophen  use and the  presence of a  G allele (AG or GG) in the GSTP1 (A105G)  polymorphism on wheeze at age 5 was statistically significant ( p=0.009 ) in fully adjusted analyses.
Association between days of acetaminophen use during pregnancy and current wheeze at age  5 years stratified by common polymorphism in the GSTP1 gene. The interaction between any prenatal acetaminophen  use and the presence of a  G allele (AG or GG) in the GSTP1 (A105G) polymorphism on wheeze at age 5 was statistically significant (p=0.009) in fully adjusted analyses.  Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski  Thorax 2010;65:118 Prenatal exposure to acetaminophen predicted wheeze at age 5 years in an inner-city minority cohort.  The risk was modified by a functional polymorphism in GSTP1, suggesting a mechanism involving the glutathione pathway.
FEBRILE DAYS PER YEAR ,[object Object],[object Object],ASTHMATIC (n=93) 8.21 Adolescentswith asthma or atopic eczema have more febrile days in early childhood: A possible explanation for the connection between paracetamol and asthma?  Tapiainen  JACI 2010;125:751 5.49 6.79 ATOPIC ECZEMA (n=233) HEALTHY (n=826) 10  – 1  – 0 p=0.03 p=0.04
FEBRILE DAYS PER YEAR ,[object Object],[object Object],ASTHMATIC (n=93) 8.21 Adolescentswith asthma or atopic eczema have more febrile days in early childhood: A possible explanation for the connection between paracetamol and asthma?  Tapiainen  JACI 2010;125:751 5.49 6.79 ATOPIC ECZEMA (n=233) HEALTHY (n=826) 10  – 1  – 0 p=0.03 p=0.04 The subjects with asthma at  follow-up had  0.85 more days  of paracetamol medication per person-year
Eff ect of prophylactic paracetamol administration at time of vaccination on febrile reactions and antibody responses in children: two open-label, randomised controlled trials.   Prymula Lancet 2009;374:1339 ,[object Object],[object Object],[object Object],% of children with temperature ≥ 38°C 80 – 70 – 60 – 50 – 40 – 30 – 20 – 10 – 0 42% 66% Paracetamol NO Paracetamol
Eff ect of prophylactic paracetamol administration at time of vaccination on febrile reactions and antibody responses in children: two open-label, randomised controlled trials.   Prymula Lancet 2009;374:1339 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Eff ect of prophylactic paracetamol administration at time of vaccination on febrile reactions and antibody responses in children: two open-label, randomised controlled trials.   Prymula Lancet 2009;374:1339 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],prophylactic administration of antipyretic drugs at the time of vaccination should not be routinely recommended since antibody responses to several vaccine antigens were  reduced.
Effetto  vaccinazioni
[object Object]
[object Object],[object Object],[object Object],Lung interstitial macrophages alter dendritic cell functions to prevent airway allergy in mice Bedoret  J Clin Inv  2009;119:3723
The association between early sensitization patterns and subsequent allergic disease. The DARC birth  cohort study.   Kjaer   Pediatr Allergy Immunol 2009:20:726  ,[object Object],[object Object],[object Object],In Subjects with Development of Early (3-18 Mo) Food Sensitization  OR   for 4.0 4.0 ECZEMA  ASTHMA 4.0 – 3.0 – 2.0 – 1.0 – 0 AT AGE 6 YRS
The association between early sensitization patterns and subsequent allergic disease. The DARC birth  cohort study.   Kjaer   Pediatr Allergy Immunol 2009:20:726  ATOPIC DERMATITIS 53% %  SUBJECTS ALREADY SENSITISED TO FOOD AT THE AGE 6 MO. ASTHMA RHINOCONJUNCTIVITIS 60 – 50 – 40 – 30 – 20 – 10 – 0 42% 47% AT AGE 6 YRS
High prevalence of sensitization to aeroallergens in children 4 yrs of age or younger with symptoms of allergic disease.  Baatenburg de Jong Ped All Imm 2009:20:735   HOUSE  DUST  MITE % Subjects with sIgE >0.35 KU/L DOG CAT GRASS POLLEN 20 – 15 – 10 – 0 5 – 0 0 12% 7% 8% 9% ,[object Object],[object Object]
High prevalence of sensitization to aeroallergens in children 4 yrs of age or younger with symptoms of allergic disease.  Baatenburg de Jong Ped All Imm 2009:20:735   HOUSE  DUST  MITE % Subjects with sIgE >0.35 KU/L DOG CAT GRASS POLLEN 20 – 15 – 10 – 0 5 – 0 0 12% 7% 8% 9% ,[object Object],[object Object],Overall, 505 (17%) tests were positive to aeroallergens.
High prevalence of sensitization to aeroallergens in children 4 yrs of age or younger with symptoms of allergic disease.  Baatenburg de Jong Ped All Imm 2009:20:735   HOUSE  DUST  MITE % Subjects with sIgE >0.35 KU/L DOG CAT GRASS POLLEN 20 – 15 – 10 – 0 5 – 0 0 12% 7% 8% 9% ,[object Object],[object Object],Positive tests were more common in boys (19.2%) than in girls  (14.2%, p <0.01)
High prevalence of sensitization to aeroallergens in children 4 yrs of age or younger with symptoms of allergic disease.  de Jong Pediatr Allergy Immunol 2009:20:735   Percentage of positive specific IgE tests to food allergens (white bars) and inhalant allergens (black bars) in children of different ages.  ,[object Object],[object Object]
Increased rate and greater severity of allergic reactions to insect sting among schoolchildren with atopic diseases   Graif  Pediatr Allergy Immunol 2009:20:757  ,[object Object],[object Object],36.9% 24.8% AMONG CHILDREN WITH ANY OF THE ATOPIC DISEASES   40 – 35 – 30 – 25 – 20 – 15 – 10 – 0 5 – 0 0 NON-ATOPIC CHILDREN  % Children Reporting an Allergic Reaction to Insect Sting  P<0.0001
Increased rate and greater severity of allergic reactions to insect sting among schoolchildren with atopic diseases   Graif  Pediatr Allergy Immunol 2009:20:757  ,[object Object],[object Object],36.9% 24.8% AMONG CHILDREN WITH ANY OF THE ATOPIC DISEASES   40 – 35 – 30 – 25 – 20 – 15 – 10 – 0 5 – 0 0 NON-ATOPIC CHILDREN  % Children Reporting an Allergic Reaction to Insect Sting  P<0.0001 Children in the atopic group had a significantly higher rate of severe allergic reactions than the non-atopic children, (p <0.0001)
Dynamic evolution of serum immunoglobulin E to airborne allergens throughout childhood: results from the  Multi-Centre Allergy Study birth cohort Matricard  Clinical & Experimental Allergy 2009;39:1551 ,[object Object],[object Object],183 1 p<0.0005 P=0.001 ,[object Object],[object Object],[object Object],[object Object]
Early sensitization was associated with a  higher tendency for  poly-sensitization at  10 years of age and allergic rhino-conjunctivitis and/or asthma at 13 years of age. Dynamic evolution of serum immunoglobulin E to airborne allergens throughout childhood: results from the  Multi-Centre Allergy Study birth cohort Matricard  Clinical & Experimental Allergy 2009;39:1551
[object Object],[object Object]
Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study   Holt   JACI 2010;125:653 ,[object Object],[object Object]
Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study   Holt   JACI 2010;125:653 Age-related changes in IgE titers.
Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study   Holt   JACI 2010;125:653 Age-related changes in IgE titers. Aeroallergen-specific IgE titers cycled continuously within the low range in nonatopic subjects.
Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study   Holt   JACI 2010;125:653 Age-related changes in IgE titers. Atopic subjects displayed similar cycling in infancy but eventually locked into a stable pattern of upwardly trending antibody production.
Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study   Holt   JACI 2010;125:653 ,[object Object],[object Object],Attaining mite-specific IgE titers of > 0.20 kU/L  by age 2 years was associated with a  12.7%  risk of persistent wheeze ,  increasing progressively to an 87.2% risk with increasing numbers of severe lower   respiratory tract illnesses  experienced.
Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study   Holt   JACI 2010;125:653 Conclusion:  The risk for development of persistent wheeze in children can be quantified by means of integration of measures related to  early sensitization  and  early infections .  Follow-up studies along similar lines in larger unselected populations to refine this approach are warranted.
[object Object],[object Object],[object Object],[object Object],[object Object],Pathophysiological Features of Asthma Develop in Parallel in House Dust Mite–Exposed Neonatal Mice   Saglani   AJRCMB   2009:41:281
[object Object],[object Object],[object Object],[object Object],[object Object],Importantly, all abnormalities developed in parallel, not sequentially, between 2 and 3 weeks of age.  Pathophysiological Features of Asthma Develop in Parallel in House Dust Mite–Exposed Neonatal Mice   Saglani   AJRCMB   2009:41:281
House Dust Mite–Promoted Epithelial-to-Mesenchymal Transition in Human Bronchial Epithelium Heijink   AJRCMB 2010;42:69   Human bronchial epithelium (16HBE cells)  Fibrogenic cytokine  TGF-β   and protease-containing aeroallergen  house dust mite   induce  epithelial-to-mesenchymal transition  (EMT), a key process in tissue repair and remodeling  +TGF- β
[object Object],[object Object]
Cat sensitization according to cat window of exposure in adult asthmatics Oryszczyn  Clinical & Experimental Allergy 2009;39:1515 183 1 p<0.0005 P=0.001 ,[object Object],[object Object],[object Object],[object Object]
183 1 p<0.0005 P=0.001 Cat sensitization according to cat window of exposure in adult asthmatics Oryszczyn  Clinical & Experimental Allergy 2009;39:1515 ,[object Object],[object Object],[object Object],[object Object]
183 1 p<0.0005 P=0.001 Cat sensitization according to cat window of exposure in adult asthmatics Oryszczyn  Clinical & Experimental Allergy 2009;39:1515 ,[object Object],[object Object],[object Object],[object Object],Adult asthmatics exposed to cats since childhood present an immunologic pattern with high IgG4 and low IgE. Continuous exposure may maintain a state of immunological tolerance to cat.
Associations between cat keeping, allergen exposure, allergic sensitization and atopic diseases: Results from the Children of Lübeck Allergy and Environment Study (KLAUS)  Schäfer  Pediatr Allergy Immunol 2009:20:353  ,[object Object],Relationship between measured cat allergen exposure levels in households and prevalence of allergic sensitization in 606 school beginners.
Associations between cat keeping, allergen exposure, allergic sensitization and atopic diseases: Results from the Children of Lübeck Allergy and Environment Study (KLAUS)  Schäfer  Pediatr Allergy Immunol 2009:20:353  ,[object Object],Relationship between measured cat allergen exposure levels in households and prevalence of allergic sensitization in 606 school beginners.  The data suggest a promoting effect of cat keeping for atopic diseases.
Effects of pets on asthma development up to 8 years of age: the PIAMA study   Kerkhof   Allergy 2009:64:1202  ,[object Object],0.68 HOUSE DUST MITE SENSITAZION In Children with a Cat at Home at Age 3 Mo.  OR  for 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0
Effects of pets on asthma development up  to 8 years of age: the PIAMA study   Kerkhof   Allergy 2009:64:1202  0.49 POLLEN SENSITAZION 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 In Children with a Dog at Home at Age 3 Mo.  OR  for ,[object Object]
Effects of pets on asthma development up  to 8 years of age: the PIAMA study   Kerkhof   Allergy 2009:64:1202  0.49 POLLEN SENSITAZION 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 In Children with a Dog at Home at Age 3 Mo.  OR  for ,[object Object],A cat or dog at home did not significantly affect asthma incidence in each subsequent year.
Effects of pets on asthma development up  to 8 years of age: the PIAMA study   Kerkhof   Allergy 2009:64:1202  Incidence of asthma in different age-periods by the presence  of a  cat at home (A) or a dog at home (B) at the beginning of  the period. Differences were not statistically significant.
[object Object]
Symptom days per 2 weeks at baseline Differential effects of outdoor versus indoor fungal spores on asthma morbidity in inner-city children  Pongracic   JACI   2010;125:593  ,[object Object],[object Object],6.3 YES 5.7 NO 8  – 7  – 6  – 5  – 4  – 3  – 2  – 1  – 0 SPTs for mold
EXCESS SYMPTOM DAYS per 2 WEEKS ASSOCIATED WITH  10-FOLD INCREASE IN Differential effects of outdoor versus indoor fungal spores on asthma morbidity in inner-city children  Pongracic   JACI   2010;125:593  ,[object Object],[object Object],+43% INDOOR +39% OUTDOOR ALLERGENS  50 – 40 – 30 – 20 – 10 – 0 P<0.01 P<0.01
EXCESS SYMPTOM DAYS per 2 WEEKS ASSOCIATED WITH  10-FOLD INCREASE IN Differential effects of outdoor versus indoor fungal spores on asthma morbidity in inner-city children  Pongracic   JACI   2010;125:593  ,[object Object],[object Object],+43% INDOOR +39% OUTDOOR ALLERGENS  50 – 40 – 30 – 20 – 10 – 0 P<0.01 P<0.01 During the study, increases in total fungal exposure and indoor Penicillium species exposure were associated with increases in symptom days and asthma-related unscheduled visits.
EXCESS SYMPTOM DAYS per 2 WEEKS ASSOCIATED WITH  10-FOLD INCREASE IN Differential effects of outdoor versus indoor fungal spores on asthma morbidity in inner-city children  Pongracic   JACI   2010;125:593  ,[object Object],[object Object],+42% INDOOR +29% OUTDOOR PENICILLUM  50 – 40 – 30 – 20 – 10 – 0 P<0.01 P<0.01
EXCESS SYMPTOM DAYS per 2 WEEKS ASSOCIATED WITH  10-FOLD INCREASE IN Differential effects of outdoor versus indoor fungal spores on asthma morbidity in inner-city children  Pongracic   JACI   2010;125:593  ,[object Object],[object Object],+42% INDOOR +29% OUTDOOR PENICILLUM  50 – 40 – 30 – 20 – 10 – 0 P<0.01 P<0.01 During the study, increases in total fungal exposure and indoor Penicillium species exposure were associated with increases in symptom days and asthma-related unscheduled visits.
Confirmed Moisture Damage at Home, Respiratory Symptoms and Atopy in Early Life: A Birth-Cohort Study   Karvonen  Pediatrics 2009;124;e329 ,[object Object],[object Object],[object Object],[object Object],OR  FOR PARENT- REPORTED WHEEZING 3.0 Molds in child bedroom Major need for moisture repair Obvious mold indoor 2.85 Moisture damage in the kitchen 2.7 6.1 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0 1.9
Confirmed Moisture Damage at Home, Respiratory Symptoms and Atopy in Early Life: A Birth-Cohort Study   Karvonen  Pediatrics 2009;124;e329 ,[object Object],[object Object],[object Object],[object Object],OR  FOR PARENT- REPORTED WHEEZING 3.0 Molds in child bedroom Major need for moisture repair Obvious mold indoor 2.85 Moisture damage in the kitchen 2.7 6.1 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0 1.9 There was an increased risk for sensitization to cat dander linked with moisture and mold exposure.
[object Object],[object Object]
[object Object],[object Object]
Second-hand smoke exposure in cars and respiratory health effects in children  Kabir   ERJ 2009:34:629  ,[object Object],[object Object],20 – 15 – 10 – 5 – 0 % CHILDREN EXPOSED  TO SHS IN CARS 13.9% 15.4%
OR  in SHS Exposed Children for 1.35 1.30 WHEEZING HAY FEVER 1.5 – 1.0 – 0.5 – 0 Second-hand smoke exposure in cars and respiratory health effects in children  Kabir   ERJ 2009:34:629  ,[object Object],[object Object]
OR  in SHS Exposed Children for 1.35 1.30 WHEEZING HAY FEVER 1.5 – 1.0 – 0.5 – 0 Second-hand smoke exposure in cars and respiratory health effects in children  Kabir   ERJ 2009:34:629  ,[object Object],[object Object],Approximately  1 in 7  Irish schoolchildren are exposed to SHS  in cars and could have adverse respiratory health effects.
Acute and Short-term Effects of Secondhand Smoke on Lung Function and Cytokine Production Flouris   Am J Respir Crit Care Med  2009;179:1029  ,[object Object],[object Object],Mean ± SD of FEV 1  for men ( triangles ) and women ( squares ) in each trial.
Acute and Short-term Effects of Secondhand Smoke on Lung Function and Cytokine Production Flouris   Am J Respir Crit Care Med  2009;179:1029  ,[object Object],[object Object],Mean ± SD of FEV 1  for men ( triangles ) and women ( squares ) in each trial.   Values dropped 9.7%  in men and 13.2%  in women between  T B   and  T 0 .a = significant  ( P  < 0.05)
Acute and Short-term Effects of Secondhand Smoke on Lung Function and Cytokine Production Flouris   Am J Respir Crit Care Med  2009;179:1029  ,[object Object],[object Object],Mean ± SD of FEV 1  for men ( triangles ) and women ( squares ) in each trial.   IL-4, IL-5, IL-6 and IFN-γ at  3 hours were higher than at baseline  ( P  < 0.05).
Secondhand Smoke and Respiratory Symptoms Among Adolescent Current Smokers  Lai  Pediatrics 2009;124:1306 ,[object Object],[object Object],+50% +77% INCREASED LIKELYHOOD IN CURRENT SMOKERS ADOLESCENTS TO REPORT RESPIRATORY SYMPTOMS 1-4 5-7 IF EXPOSED TO SECOND HAND SMOKE IN THE HOUSE (DAYS/WEEK) 100- 80 - 60 – 40 – 20 – 0
Secondhand Smoke and Respiratory Symptoms Among Adolescent Current Smokers  Lai  Pediatrics 2009;124:1306 ,[object Object],[object Object],+50% +77% INCREASED LIKELYHOOD IN CURRENT SMOKERS ADOLESCENTS TO REPORT RESPIRATORY SYMPTOMS 1-4 5-7 IF EXPOSED TO SECOND HAND SMOKE IN THE HOUSE (DAYS/WEEK) 100- 80 - 60 – 40 – 20 – 0 This is the first evidence that SHS exposure is associated with increased risks for persistent respiratory symptoms among adolescent current  smokers.
2.0 – 1.5 – 1.0 – 0.5 – 0  1.55 In ETS exposed children Association of environmental tobacco smoking exposure with an increased risk of hospital admissions for pneumonia in children under 5 years of age in Vietnam   Suzuki, Thorax 2009 64: 484-489 ,[object Object],[object Object],OR for hospital admissions for pneumonia
2.0 – 1.5 – 1.0 – 0.5 – 0  1.55 In ETS exposed children ,[object Object],[object Object],OR for hospital admissions for pneumonia It is estimated that  28.7%   of childhood pneumonia in this community is attributable  to ETS. Association of environmental tobacco smoking exposure with an increased risk of hospital admissions for pneumonia in children under 5 years of age in Vietnam   Suzuki, Thorax 2009 64: 484-489
Associations Between Secondhand Smoke Exposure and Sleep Patterns in Children Yolton  Pediatrics 2010;125:261 WHAT’S KNOWN ON THIS SUBJECT :  Adult and adolescent smokers report difficulties with sleep. Young children who are exposed to tobacco smoke have poorer sleep quality. Children with asthma report more sleep problems and are more sensitive to the respiratory effects of tobacco smoke. WHAT THIS STUDY ADDS :  We report significant associations between second hand smoke (SHS) exposure, as measured with a biological marker (serum cotinine levels), and sleep problems in children with asthma.  Reduction in SHS exposure is an area with the potential for significant impact in the pediatric population.
Associations Between Secondhand Smoke Exposure and Sleep Patterns in Children Yolton  Pediatrics 2010;125:261 ,[object Object],[object Object],Exposure to SHS was associated with sleep problems, including: 1. longer sleep-onset delay  (P =0.004) ,   2. sleep-disordered breathing  (P =0.02) ,  3. parasomnias  (P=0.002) ,  4. daytime sleepiness  (P =0.022) ,  and  5. overall sleep disturbance  (P=0.0002) .
Associations Between Secondhand Smoke Exposure and Sleep Patterns in Children Yolton  Pediatrics 2010;125:261 ,[object Object],[object Object],Exposure to SHS was associated with sleep problems, including: 1. longer sleep-onset delay  (P =0.004) ,   2. sleep-disordered breathing  (P =0.02) ,  3. parasomnias  (P=0.002) ,  4. daytime sleepiness  (P =0.022) ,  and  5. overall sleep disturbance  (P=0.0002) . Parasomnias  are a category of sleep disorders that involve abnormal and unnatural movements, behaviors, emotions, perceptions, and dreams that occur while falling asleep, sleeping, between sleep stages, or arousal from sleep. Most parasomnias are dissociated sleep states which are partial arousals during the transitions between wakefulness and NREM sleep, or wakefulness and REM sleep.
Association of Tobacco and Lead Exposures With Attention-Deficit/Hyperactivity Disorder  Froehlich  Pediatrics 2009;124:e1054 ,[object Object],[object Object],[object Object],% CHILDREN WHO MET CRITERIA FOR ADHD 8.7% 10 – 9 – 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0
FUMO IN GRAVIDANZA
Effects of nicotine on pulmonary surfactant proteins A and D in ovine lung epithelia   Lazic   Pediatric Pulmonology 2009;45:255  Exposure to nicotine significantly decreased (Surfactant proteins) SP-A gene expression ( P =0.01) and SP-A protein level in  pre-term lambs. Nicotine exposure during the third trimester of pregnancy Pregnant ewes
Effects of nicotine on pulmonary surfactant proteins A and D in ovine lung epithelia   Lazic   Pediatric Pulmonology 2009;45:255  Exposure to nicotine significantly decreased (Surfactant proteins) SP-A gene expression ( P =0.01) and SP-A protein level in  pre-term lambs. Nicotine exposure during the third trimester of pregnancy Pregnant ewes SP-A and SP-D, are components of pulmonary innate immunity and have  an important role in defense against inhaled pathogens.
Rationale:  Prenatal exposure to tobacco smoke increases the risk for diseases later in the child's life that may be mediated through alterations in DNA methylation.  Objectives :  To demonstrate that differences in DNA methylation patterns occur in children exposed to tobacco smoke and that variation in detoxification genes may alter these associations. Prenatal Tobacco Smoke Exposure Affects Global  and Gene-specific DNA Methylation Breton  AJRCCM   2009:180:462
[object Object],[object Object],[object Object],Prenatal Tobacco Smoke Exposure Affects Global  and Gene-specific DNA Methylation Breton  AJRCCM   2009:180:462
[object Object],[object Object],[object Object],Prenatal Tobacco Smoke Exposure Affects Global  and Gene-specific DNA Methylation Breton  AJRCCM   2009:180:462 Life-long effects of  in utero  exposures may be mediated through alterations in DNA methylation.
[object Object],[object Object],[object Object],[object Object],The Developmental Origins of Asthma:  Does Epigenetics Hold the Key?  Shaheen   AJRCCM  2009:180:690
[object Object],[object Object],[object Object],The Developmental Origins of Asthma:  Does Epigenetics Hold the Key?  Shaheen   AJRCCM  2009:180:690
[object Object],[object Object],[object Object],The Developmental Origins of Asthma:  Does Epigenetics Hold the Key?  Shaheen   AJRCCM  2009:180:690 Methylation of the C5 position of cytosine residues in DNA is a key epigenetic mark, and methylation of these cysteine-containing islands usually silences gene expression.
In Utero Exposure to Smoking and Peripheral Chemoreceptor Function in Preterm Neonates  Stéphan-Blanchard  Pediatrics 2010;125:e592   ,[object Object],[object Object],Prenatal smoking exposure: 1)  did not modify baseline ventilation. 2)  decreased peripheral chemoreceptor tonic activity during active sleep and  3)  increased the response time during quiet sleep.
In Utero Exposure to Smoking and Peripheral Chemoreceptor Function in Preterm Neonates  Stéphan-Blanchard  Pediatrics 2010;125:e592   ,[object Object],[object Object],Prenatal smoking exposure: 1)  did not modify baseline ventilation. 2)  decreased peripheral chemoreceptor tonic activity during active sleep and  3)  increased the response time during quiet sleep.   These changes could explain the increase in the time spent in apnea (both with and without blood oxygen desaturation) and in the mean duration of apneic episodes with desaturation found in neonates exposed to smoking in utero.
Maternal smoking during and after pregnancy and lung function in early adulthood: a prospective study   Hayatbakhsh, Thorax  2009; 64: 810-814 ,[object Object],[object Object],[object Object],[object Object]
Association of passive exposure of pregnant women to environmental tobacco smoke with asthma symptoms in children.  Xepapadaki  Pediatr Allergy Immunol 2009:20:423  ,[object Object],[object Object],In Children Born from Mother Passively Exposed to Tobacco Smoke During the 3° Trimester of Pregnancy  OR  for 1.42 CURRENT WHEEZE 1.5 – 1.0 – 0.5 – 0 PRURITIC RASH EVER 1.45
Association of passive exposure of pregnant women to environmental tobacco smoke with asthma symptoms in children.  Xepapadaki  Pediatr Allergy Immunol 2009:20:423  ,[object Object],[object Object],In Children Born from Mother Passively Exposed to Tobacco Smoke During the 3° Trimester of Pregnancy  OR  for 1.42 CURRENT WHEEZE 1.5 – 1.0 – 0.5 – 0 PRURITIC RASH EVER 1.45 Public health policies should be oriented not only towards smoking cessation, but also reinforce elimination of ETS exposure of pregnant women. X
% women reported current active smoking 18% 20 – 15 – 10 – 5 – 0 The Effect of Active and Passive Household Cigarette Smoke Exposure on Pregnant Women With Asthma  Newman   CHEST   2010;137(3):601  ,[object Object],[object Object],Among the newborns of active smokers, there was a greater risk of: 1) small for gestational age  < 10th percentile  P <.001 , and  2) a lower mean birth weight  P < .001
First trimester maternal tobacco smoking habits and fetal growth   Prabhu  Thorax 2010;65:235–240 % smoking mother 31% 40 – 30 – 20 – 10 – 0 ,[object Object],[object Object]
First trimester maternal tobacco smoking habits and fetal growth   Prabhu  Thorax 2010;65:235–240 Mean differences in  femur length  (cm) and 95% CI between 20-week-old fetuses grouped by tertile of maternal daily cigarette consumption ,[object Object],[object Object],P=0.03 -0.91 cm
First trimester maternal tobacco smoking habits and fetal growth   Prabhu  Thorax 2010;65:235–240 Mean differences in  femur length  (cm) and 95% CI between 20-week-old fetuses grouped by tertile of maternal daily cigarette consumption ,[object Object],[object Object],P=0.03 There was  an  inverse  exposure-response relationship between cigarette consumption and FL (mean reduction in lowest compared with highest tertile 0.91 cm,  p=0.033 ). -0.91 cm
1.58 In mothers who continued smoking   OR   for  2 years 5 years 2.18 P <0.017 First trimester maternal tobacco smoking habits and fetal growth   Prabhu  Thorax 2010;65:235–240 3 – 2 – 1 – 0 Children wheeze at age ,[object Object],[object Object],P =0.03
1.58 In mothers who continued smoking   OR   for  2 years 5 years 2.18 P <0.017 First trimester maternal tobacco smoking habits and fetal growth   Prabhu  Thorax 2010;65:235–240 3 – 2 – 1 – 0 P =0.03 Children wheeze at age ,[object Object],[object Object],Mean reduction in FEV 1 of 62 ml ( p=0.014 ) compared with controls.
First trimester maternal tobacco smoking habits and fetal growth   Prabhu  Thorax 2010;65:235–240 Conclusions:  Maternal smoking is associated with reduced fetal measurements in the second and third trimesters but not in the first trimester.  Mothers who do not quit smoking during the first trimester deliver smaller infants who go on to have adverse respiratory outcomes in childhood.
% smoking mothers 18% 20 – 15 – 10 – 5 – 0 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants  Ekblad   J Pediatr   2010;156:185   ,[object Object],[object Object],[object Object]
% smoking mothers 18% 20 – 15 – 10 – 5 – 0 ,[object Object],[object Object],[object Object],The frontal lobe  (P = 0.01) and the cerebellar (P = 0.03) volumes were significantly smaller in the exposed than in the unexposed infants. Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants  Ekblad   J Pediatr   2010;156:185
% smoking mothers 18% 20 – 15 – 10 – 5 – 0 ,[object Object],[object Object],[object Object],There was no association between prenatal smoking exposure and head growth or structural brain disease. Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants  Ekblad   J Pediatr   2010;156:185
CEREBELLUM (mL) 23.1 24.5 EXPOSED NON-EXPOSED P=0.03 150 – 100 – 50 – 0 25 – 20 – 15 – 10 – 5 – 0 FRONTAL LOBE (mL) 118 127 EXPOSED NON-EXPOSED P=0.01 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants  Ekblad   J Pediatr   2010;156:185   Magnetic Resonance
CEREBELLUM (mL) 23.1 24.5 EXPOSED NON-EXPOSED P=0.03 150 – 100 – 50 – 0 25 – 20 – 15 – 10 – 5 – 0 FRONTAL LOBE (mL) 118 127 EXPOSED NON-EXPOSED P=0.01 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants  Ekblad   J Pediatr   2010;156:185   Magnetic Resonance This is consistent with reports showing an association between prenatal smoking exposure and impairments in frontal lobe and cerebellar functions such as emotion,  impulse control , and attention.
CEREBELLUM (mL) 23.1 24.5 EXPOSED NON-EXPOSED P=0.03 150 – 100 – 50 – 0 25 – 20 – 15 – 10 – 5 – 0 FRONTAL LOBE (mL) 118 127 EXPOSED NON-EXPOSED P=0.01 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants  Ekblad   J Pediatr   2010;156:185   Magnetic Resonance This is consistent with reports showing an association between prenatal smoking exposure and impairments in frontal lobe and cerebellar functions such as emotion,  impulse control , and attention. Mamma grazie per non aver mai fumato….. altrimenti sai che disastro ….
Nicotine exerts direct effects on neural cell proliferation, survival, and migration. 1. Roy Neurotoxicol Teratol 1998;20:465. 2. Slotkin Toxicol Appl Pharmacol 2004;198:132. 3. Levitt Drug Alcohol Depend 1998;51:109. Experimental animal studies Clinical studies on the spectrum of smoking-related impairments in frontal lobe and cerebellar functions Deficits in emotion, impulse control, and attention. 1. Obel Paediatr Perinat Epidemiol 1998;12:37 . Magnetic Resonance Imaging Sheds Light on the Nature of Smoking-Induced Effects on Fetal Brain  Heinonen   J Pediatr   2010;156:175
Association of Tobacco and Lead Exposures With Attention-Deficit/Hyperactivity Disorder  Froehlich  Pediatrics 2009;124:e1054 OR   FOR ADHD 2.4 3 – 2 – 1 – 0 2.3  PRENATAL TOBACCO EXPOSURE HIGHER BLOOD LEAD CONCENTRATIONS ,[object Object],[object Object],[object Object]
Association of Tobacco and Lead Exposures With Attention-Deficit/Hyperactivity Disorder  Froehlich  Pediatrics 2009;124:e1054 OR   FOR ADHD 2.4 3 – 2 – 1 – 0 2.3  PRENATAL TOBACCO EXPOSURE HIGHER BLOOD LEAD CONCENTRATIONS ,[object Object],[object Object],[object Object],Reduction of these common toxicant exposures may be an important avenue for ADHD prevention.
Prevalence of and Early-Life Influences on Childhood Strabismus   Pathai  Arch Pediatr Adolesc Med. 2010;164:250-257 % children with neurodevelopmental/neurologic disorders 5.8% ,[object Object],[object Object],8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0
1.9 OR  for strabismus associated with neurodevelopmental/neurologic disorders Maternal age  ≥   35 yrs Smoking in pregnancy 3.1 ,[object Object],[object Object],4 – 3 – 2 – 1 – 0  Prevalence of and Early-Life Influences on Childhood Strabismus   Pathai  Arch Pediatr Adolesc Med. 2010;164:250-257
[object Object],[object Object],[object Object],% children with dental caries 50 – 40 – 30 – 20 – 10 – 0 NO The Effect of Maternal Smoking during Pregnancy and Postnatal   Household Smoking on Dental Caries in Young Children   Keiko Tanaka , J Ped 2009;155;410 YES 19.6% 33% OR 1.43 Smoking during pregnancy
[object Object],[object Object],[object Object],% children with dental caries The Effect of Maternal Smoking during Pregnancy and Postnatal   Household Smoking on Dental Caries in Young Children   Keiko Tanaka , J Ped 2009;155;410 Exposed to  environmental smoke 30 – 20 – 10 – 0 17.8% 25% OR 1.25   NO YES
[object Object],[object Object],[object Object],% children with dental caries The Effect of Maternal Smoking during Pregnancy and Postnatal   Household Smoking on Dental Caries in Young Children   Keiko Tanaka , J Ped 2009;155;410 Exposed to  environmental smoke 30 – 20 – 10 – 0 17.8% 25% OR 1.25   NO YES Both in utero exposure to maternal smoking and postnatal exposure to ETS may be associated with an increased prevalence of dental caries in young children
Association of Maternal Smoking Status With Breastfeeding Practices: Missouri, 2005  Weiser  Pediatrics 2009;124:1603 ,[object Object],[object Object],% OF WOMEN EVER SMOKED WHILE PREGNANT 31% 60 – 40 – 20 – 0
Association of Maternal Smoking Status With Breastfeeding Practices: Missouri, 2005  Weiser  Pediatrics 2009;124:1603 Kaplan-Meier survival curve of breastfeeding according to smoking status. ,[object Object],[object Object]
Association of Maternal Smoking Status With Breastfeeding Practices: Missouri, 2005  Weiser  Pediatrics 2009;124:1603 ,[object Object],[object Object],Mothers who smoked initiated breastfeeding less often and weaned earlier than nonsmoking mothers. Kaplan-Meier survival curve of breastfeeding according to smoking status.
FUMO E ASMA
FUMO E RISPOSTA IMMUNE - INFEZIONI
FUMO E  FATTORI DI RISCHIO PER INIZIARE
Individual and Social Influences on Progression to Daily Smoking During Adolecence Kim  Pediatrics 2009; 124:895 ,[object Object],[object Object]
Individual and Social Influences on Progression to Daily Smoking During Adolecence Kim  Pediatrics 2009; 124:895 FACTOR ASSOCIATED WITH SMOKING PROGRESSION
FUMO E  RUOLO DEL PEDIATRA E DELLA SOCIETA’
% Established smoking (having smoked≥100 cigarettes in one’s lifetime) at follow-up 17.2%   ,[object Object],[object Object],INFLUENCE OF MOVIE SMOKING EXPOSURE AND TEAM SPORTS PARTICIPATION ON ESTABLISHED SMOKING  Adachi-Mejia  Arch Ped Adoles Med 2009;163:638 20 – 15 – 10 – 5 – 0
INFLUENCE OF MOVIE SMOKING EXPOSURE AND TEAM SPORTS PARTICIPATION ON ESTABLISHED SMOKING  Adachi-Mejia  Arch Ped Adoles Med 2009;163:638 2 – 1 – 0  OR for smoking 1.63   2.01   Exposure to the  highest  quartile of movie smoking compared with  the  lowest Sports  nonparticipants  compared with  participants Prevalence of established smokers across quartiles of movie smoking exposure stratified by team sports participation.
Fumo e STOP SMOKING
[object Object],[object Object],[object Object],Evaluation of School-Based Smoking-Cessation Interventions for Self-Described Adolescent Smokers  Joffe Pediatrics 2009;124;e187 OR  for self-report quitting 2.07 In students enroled in the  Not on Tobacco program At 1 mo 3 – 2 – 1 – 0 1.58 At 12 mo
Smoking Cessation  Chandler  Chest 2010;137:428
Smoking Cessation  Chandler  Chest 2010;137:428
A New Breath-Holding Test May  Noninvasively Reveal Early Lung Abnormalities Caused by Smoking and/or Obesity  Inoue  Chest 2009;136:545 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A new test that measures oxygen saturation during breath-holding reveals early lung abnormalities in subjects who either smoke or are overweight, especially if these factors are combined.
Polygraph tracings of four sample subjects in the four group A New Breath-Holding Test May  Noninvasively Reveal Early Lung Abnormalities Caused by Smoking and/or Obesity  Inoue  Chest 2009;136:545
[object Object]
[object Object],[object Object]
Increase of inflammatory markers after indoor renovation activities: The LISA birth cohort study   Herberth  Pediatr Allergy Immunol 2009:20:563   Relation between  renovation activities  and cytokine concentrations in blood samples of 6-yr-old children.  ,[object Object],[object Object],[object Object]
Increase of inflammatory markers after indoor renovation activities: The LISA birth cohort study   Herberth  Pediatr Allergy Immunol 2009:20:563   Relation between  renovation activities  and cytokine concentrations in blood samples of 6-yr-old children.  ,[object Object],[object Object],[object Object],Increased levels of  IL-8  and  Monocyte Chemoattractant  Protein-1   ( MCP-1 )  in children's blood  were related to renovation activities.
Increase of inflammatory markers after indoor renovation activities: The LISA birth cohort study   Herberth  Pediatr Allergy Immunol 2009:20:563   Relation between type of  floor covering materials  and cytokine concentrations in blood samples of 6-yr-old children.  ,[object Object],[object Object],[object Object]
Increase of inflammatory markers after indoor renovation activities: The LISA birth cohort study   Herberth  Pediatr Allergy Immunol 2009:20:563   Relation between type of  floor covering materials  and cytokine concentrations in blood samples of 6-yr-old children.  ,[object Object],[object Object],[object Object],In particular, new floor covering was associated with increased inflammatory markers.
[object Object],[object Object],Increase of inflammatory markers after indoor renovation activities: The LISA birth cohort study   Herberth  Pediatr Allergy Immunol 2009:20:563
[object Object],[object Object]
Swimming pool attendance and risk of asthma  and allergic symptoms in children   Font-Ribera   ERJ 2009:34:1304  ,[object Object],[object Object],[object Object],In Children with Swimming Pool Attendance Before the Age of 2 Yrs  Compared to Those Who Started Attending Swimming Pools after 4 Yrs of Age   OR  for 0.79 0.86 CURRENT ASTHMA RHINITIS 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0
Swimming pool attendance and risk of asthma  and allergic symptoms in children   Font-Ribera   ERJ 2009:34:1304  ,[object Object],[object Object],[object Object],In Children with Swimming Pool Attendance Before the Age of 2 Yrs  Compared to Those Who Started Attending Swimming Pools after 4 Yrs of Age   OR  for 0.79 0.86 CURRENT ASTHMA RHINITIS 1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 Longitudinal studies are required to confirm these findings and avoid potential reverse causation.
Swimming pool attendance and risk of asthma  and allergic symptoms in children   Font-Ribera   ERJ 2009:34:1304  ,[object Object],[object Object],[object Object],OR for eczema in those attending swimming pool >5 yrs  versus  0 yrs 2 – 1 – 0 1.71
Swimming pool attendance and risk of asthma  and allergic symptoms in children   Font-Ribera   ERJ 2009:34:1304  ,[object Object],[object Object],[object Object],OR for eczema in those attending swimming pool >5 yrs  versus  0 yrs 2 – 1 – 0 1.71 An increased prevalence of eczema was associated with duration of lifetime pool attendance  (OR 1.71, for >5 yrs  versus  0 yrs).
[object Object],[object Object],Impact of Chlorinated Swimming Pool Attendance on the Respiratory Health of Adolescents Bernard  Pediatrics 2009;124;1110 OR  FOR ASTHMA 1 14 – 12 - 10 – 8 – 6 – 4 – 2 – 0 5.39 7.32 12.6 100 100-500 500-1000 >1000 CHLORINATED POOL  ATTENDANCE HOURS
Domestic use of hypochlorite bleach, atopic sensitization, and respiratory symptoms in adults   Zock JACI 2009;124:731  ,[object Object],[object Object],2.0 – 1.5 – 1.0 – 0.5 – 0 0.75 1.24 IN SUBJECTS USING  BLEACH ≥4 DAYS/W  OR for RESPIRATORY SYMPTOMS ALLERGY TO CAT
Domestic use of hypochlorite bleach, atopic sensitization, and respiratory symptoms in adults   Zock JACI 2009;124:731  ,[object Object],[object Object],2.0 – 1.5 – 1.0 – 0.5 – 0 0.75 1.24 IN SUBJECTS USING  BLEACH ≥4 DAYS/W  OR for RESPIRATORY SYMPTOMS ALLERGY TO CAT The use of bleach was not associated with indoor allergen concentrations.
Domestic use of hypochlorite bleach, atopic sensitization, and respiratory symptoms in adults   Zock JACI 2009;124:731  ,[object Object],[object Object],2.0 – 1.5 – 1.0 – 0.5 – 0 0.75 1.24 IN SUBJECTS USING  BLEACH ≥4 DAYS/W  OR for RESPIRATORY SYMPTOMS ALLERGY TO CAT People who clean their homes with hypochlorite bleach are less likely to be atopic but more likely to have respiratory symptoms.
Improved Biomass Stove Intervention in Rural Mexico Romieu  Am. J. Respir. Crit. Care Med 2009;180:649 ,[object Object],[object Object],1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 0.77 0.29 RELATIVE RIGH FOR Respiratory  Symptoms Wheezing In women who use a stove instead of open fire
Improved Biomass Stove Intervention in Rural Mexico Romieu  Am. J. Respir. Crit. Care Med 2009;180:649 ,[object Object],[object Object],1.0 – 0.9 – 0.8 – 0.7 – 0.6 – 0.5 – 0.4 – 0.3 – 0.2 – 0.1 – 0 0.77 0.29 RELATIVE RIGH FOR Respiratory  Symptoms Wheezing In women who use a stove instead of open fire Actual use of the Patsari stove was associated with a lower FEV 1  decline (31 ml) compared with the open fire use (62 ml) over 1 year of follow-up  ( P =0.012 ) for women  20 years of age  and older
TWO REPRESENTATIVE HOUSEHOLD KITCHEN MEXICO  Patsari chimney wood stove  Open wood fire  Improved Biomass Stove Intervention in Rural Mexico Romieu  Am. J. Respir. Crit. Care Med 2009;180:649
[object Object]
Residential proximity to main roads during pregnancy and the risk of allergic disorders in Japanese infants: The Osaka Maternal and Child Health Study   Miyake  Pediatr Allergy Immunol 2010:21:22  ,[object Object],[object Object],[object Object]
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Atopy risk protective factor

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  • 6. Prevalence of current wheeze according to the written questionnaire in the 13–14 year age group . The symbols indicate prevalence values of <5% (blue square), 5 to <10% (green circle), 10 to <20% (yellow diamond) and >20% (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
  • 7. Prevalence of symptoms of severe asthma according to the written questionnaire in the 13–14 year age group . The symbols indicate prevalence values of <2.5% (blue square), 2.5 to <5% (green circle), 5 to <7.5% (yellow diamond) and >7.5% (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
  • 8. Prevalence of current wheeze in the 6–7 year age group . The symbols indicate prevalence values of <5% (blue square), 5 to <10% (green circle), 10 to <20% (yellow diamond) and >20% (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
  • 9. Prevalence of symptoms of severe asthma in the 6–7 year age group . The symbols indicate prevalence values of <2.5% (blue square), 2.5 to <5% (green circle), 5 to <7.5% (yellow diamond) and >7.5% (red star). Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC) Lai Thorax 2009;64: 476-483
  • 10.
  • 11. OR for development of 2 – 1 – 0 1.59 1.29 0.64 asthma eczema eczema eczema asthma rhinitis in children first diagnosed with Establishing the sequential progression of multiple allergic diagnoses in a UK birth cohort using the General Practice Research Database Punekar CEA 2009;39:1889
  • 12. Conclusions: Among children diagnosed with multiple allergic diseases there is likely to be a number of variants of 'the allergic march'. Of these, the diagnosis of eczema followed by asthma, which is in turn followed by rhinitis, is the most common trajectory . Some diagnoses indicate a possible strong protective effect of manifesting further likely allergic diagnoses. Establishing the sequential progression of multiple allergic diagnoses in a UK birth cohort using the General Practice Research Database Punekar CEA 2009;39:1889
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  • 21. Neuropsychologic status at the age 4 years and atopy in a population-based birth cohort Julvez Allergy 2009:64:1279 Background:  Mental health has been reported to be associated with allergy, but only a few cohort studies have assessed if neurodevelopment predicts atopy. Objective: To investigate if neurobehavioral status of healthy 4-year-old children was associated with specific immunoglobulin E (IgE) at the same age and skin prick test results 2 years later.
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  • 25. Neuropsychologic status at the age 4 years and atopy in a population-based birth cohort Julvez Allergy 2009:64:1279 The pathways between neurobehavior and atopy are not clearly elucidated One of the hypotheses is that atopic children are more likely to have clinical disturbances, such as symptoms of asthma or wheezing (and their corresponding treatments) that may affect behavior. These factors could modify the psychosocial environment of the child and create a vicious cycle, worsening the child neurodevelopment.
  • 26. Neuropsychologic status at the age 4 years and atopy in a population-based birth cohort Julvez Allergy 2009:64:1279 The pathways between neurobehavior and atopy are not clearly elucidated One of the hypotheses is that atopic children are more likely to have clinical disturbances, such as symptoms of asthma or wheezing (and their corresponding treatments) that may affect behavior. These factors could modify the psychosocial environment of the child and create a vicious cycle, worsening the child neurodevelopment. However, our results appear to argue against this hypothesis
  • 27. Neuropsychologic status at the age 4 years and atopy in a population-based birth cohort Julvez Allergy 2009:64:1279 Another hypothesis suggests that lower behavior scores might be indicators of chronic or acute stresses in the child's life that may affect atopy as well. However, we took into account many variables that indicate factors that could influence child stress or its management, such as sleeping hours, physical activity and ways of entertainment, parental social class and level of education, smoking, alcohol consumption, maternal parity, and marital status.
  • 28. Neuropsychologic status at the age 4 years and atopy in a population-based birth cohort Julvez Allergy 2009:64:1279 Another hypothesis suggests that lower behavior scores might be indicators of chronic or acute stresses in the child's life that may affect atopy as well. However, we took into account many variables that indicate factors that could influence child stress or its management, such as sleeping hours, physical activity and ways of entertainment, parental social class and level of education, smoking, alcohol consumption, maternal parity, and marital status. None of these factors confounded the associations' strength.
  • 29. Neuropsychologic status at the age 4 years and atopy in a population-based birth cohort Julvez Allergy 2009:64:1279 This suggests the existence of direct physiologic pathways involved in the association between neurobehavior and atopy, maybe sharing genetic influences. Altered HPA function and allergic disorders may be part of these pathways, probably secondary to gene–environment interactions. elevated endogenous cortisol produced by HPA may affect the developing immune system with subsequent atopic responses and consequent allergic disorders
  • 30.
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  • 32. Neuroticism, extraversion, stressful life events and asthma: a cohort study of middle-aged adults Loerbroks Allergy 2009:64:1444 Background:  Stressful life events can trigger asthma exacerbations, but could also contribute to the development of incident asthma. However, only few studies have investigated the association between stressful life events and adult asthma prospectively. Likewise, stress-related personality traits (e.g. neuroticism and extraversion) may increase asthma risk, but this has been examined in only one prospective study. We therefore aimed to investigate the association between neuroticism, extraversion, stressful life events and incident asthma.
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  • 36. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Stress Activates the hypothalamic-pituitary-adrenal axis Impaired glucocorticoid receptor expression and/or function Promote and amplify airway inflammation in response to infections, allergen, or irritant exposure Release of endogenous glucocorticoids
  • 37. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 glucocorticoid binding to the intracellular receptor (GR) molecular rearrangement of the GR–heat shock protein 90 heterocomplex and interacting with specific DNA elements, termed glucocorticoid response elements (GREs) GR nuclear localization, homodimerization, and DNA binding GR signaling and glucocorticoid resistance in airway inflammation.
  • 38. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus.
  • 39. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Positive GRE mediates transcriptional upregulation of anti-inflammatory genes such as NF-kB inhibitor a (IkB α ), the glucocorticoid-inducible leucine zipper (GILZ) , or IL 10. Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus.
  • 40. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Negative GRE mediates transcriptional downregulation. Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus.
  • 41. Mechanisms of glucocorticoid action. The activated GR homodimer binds to GREs, located within regulatory regions of glucocorticoid-responsive genes in the nucleus. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 In monomeric form, the activated GR may interact with other transcription factors such as NF-kB. This interaction can occur indirectly through transcriptional cofactor (HDAC) binding (C) or by RNA polymerase dephosphorylation (D).
  • 42. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Hypothesized mechanisms by which glucocorticoid resistance could occur. A , Glucocorticoid binding to the GR induces molecular rearrangement of the GR–heat shock protein 90 heterocomplex and promotes GR nuclear translocation, homodimerization, and DNA binding. B , This process can be modulated by GR/NF-kB interactions, directly by affecting transactivation (GRE-mediated) as well as transrepression of GR functions. C , Indirect inhibition of the GR function may be achieved by transcription factor ‘‘tethering.’’
  • 43. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 1) Alveolar epithelial cells, Clara cells, and cells of submucosal glands in the lung. Surfactant protein D a constitutive mediator of antigen clearance and is capable of interacting with cellular components of both the innate and adaptive immune systems on mucosal surfaces. Significantly increased SP-D levels. It is possible that the beneficial effects of glucocorticoid therapy are partially mediated by enhanced SP-D expression in the lung. 2) Corticosteroid treatment Role of the epithelial product surfactant protein D in asthmatic inflammation.
  • 44. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 1) Alveolar epithelial cells, Clara cells, and cells of submucosal glands in the lung. Surfactant protein D a constitutive mediator of antigen clearance and is capable of interacting with cellular components of both the innate and adaptive immune systems on mucosal surfaces. Significantly increased SP-D levels. It is possible that the beneficial effects of glucocorticoid therapy are partially mediated by enhanced SP-D expression in the lung. 2) Corticosteroid treatment Role of the epithelial product surfactant protein D in asthmatic inflammation. Studies on SP-D–deficient mice demonstrated enhanced susceptibility to inflammation in infectious and inflammatory models, including allergic airway sensitization, and abnormal activation of alveolar macrophages and dendritic cells.
  • 45. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response.
  • 46. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response. Altered corticosteroid responsiveness of airway epithelial cells may inhibit SP-D production.
  • 47. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response. Stress abrogates inhibitory effects of corticosteroid on responsiveness of proinflammatory dendritic cells.
  • 48. Social stress and asthma: The role of corticosteroid Insensitivity Haczku JACI 2010;125:550 Proposed mechanism of how stress-induced glucocorticoid insensitivity could affect the innate immune system during the allergic airway response. Diminished SP-D levels will result in a failure to protect against dendritic cell and T H 2-cell activation and the consequent allergic airway response.
  • 49.
  • 50.
  • 51.
  • 52. The interaction between early life upper respiratory tract infection and birth during the pollen season on rye-sensitized hay fever and ryegrass sensitization – a birth cohort study. Kemp Pediatr Allergy Immunol 2009:20:536 OR FOR RYE GRASS SENSITIZATION 5.8 BORN DURING THE POLLEN SEASON BORN OUTSIDE THE POLLEN SEASON 6 – 5 – 4 – 3 – 2 – 1 – 0 0.62 IN CHILDREN WITH Upper Respiratory Tract Infections in the 1° Month of Life
  • 53. The interaction between early life upper respiratory tract infection and birth during the pollen season on rye-sensitized hay fever and ryegrass sensitization – a birth cohort study. Kemp Pediatr Allergy Immunol 2009:20:536 OR FOR RYE GRASS SENSITIZATION 5.8 BORN DURING THE POLLEN SEASON BORN OUTSIDE THE POLLEN SEASON 6 – 5 – 4 – 3 – 2 – 1 – 0 0.62 Early life viral URI interacts with ryegrass allergen exposure in the development of rye grass allergen sensitization and rye grass sensitized hay fever symptoms. IN CHILDREN WITH Upper Respiratory Tract Infections in the 1° Month of Life
  • 54.
  • 55.
  • 56. Background: Asthma typically originates in early-life, and the impact of infection during immunologic maturation is a critical factor in disease pathogenesis. The progression of aberrant T H 2 cell responses and disease development has been attributed to a lack of infections. However, exposure to specific pathogens such as Chlamydia may alter immunologic programming and predispose to asthma. Early-life chlamydial lung infection enhances allergic airways disease through age-dependent differences in immunopathology Horvat JACI 2010;125:617
  • 57.
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  • 62. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. - 2.1 (paracetamol exposure in utero), - 1.5 to 3.2 (paracetamol use in infancy or childhood) - 2.9 (paracetamol use in adults) 1° Strength of effect: Increased asthma risk of up to: Shaheen SO, Thorax 2002;57:958-63. Shaheen SO, Clin Exp Allergy 2005;35:18-25. Rebordosa C, Int J Epidemiol2008;37:583-90. Koniman R, Pediatr Allergy Immunol 2007;18:128-34. Garcia-Marcos L, Int Arch Allergy Immunol2008;149:33-7. Persky V, Ann Alle Asthma Immunol 2008;101:271-8. Perzanowski MS, JACI 2008;121(suppl):S231. Shaheen SO, Thorax. 2000;55:266–270. Shaheen S, Eur Respir J. 2008;32:1231–1236. Davey G, J Allergy Clin Immunol. 2005;116:863–868. McKeever TM, Am J Respir Crit Care Med. 2005;171:966–971. Barr RG , Am J Respir Crit Care Med. 2004;169:836–841. Thomsen SF, J Asthma. 2008;45:675–676. Shaheen SO, Thorax 2002;57:958-63. Beasley R, Lancet 2008;372:1039-48.
  • 63. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. 2°Dose response: Present for paracetamol exposure - in utero - in childhood - in adults Shaheen SO, Thorax 2002;57:958-63. Shaheen SO, Clin Exp Allergy 2005;35:18-25. Beasley R, Lancet. 2008;372:1039–1048. Shaheen SO, Thorax. 2000;55:266–270. Davey G, J Allergy Clin Immunol. 2005;116:863–868. McKeever TM, Am J Respir Crit Care Med. 2005;171:966–971. Barr RG, Am J Respir Crit Care Med. 2004;169:836–841.
  • 64. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 3° Consistency/Coherence: - Consistency between different studies in different age groups in different populations worldwide Shaheen SO, Thorax. 2002;57:958–963. Shaheen SO, Clin Exp Allergy. 2005;35:18–25. Rebordosa C, Int J Epidemiol. 2008;37:583–590. Koniman R, Pediatr Allergy Immunol. 2007;18:128–134. Garcia-Marcos L, Int Arch Allergy Immunol. 2008;149:33–37. Persky V, Ann Allergy Asthma Immunol. 2008;101:271–278. Perzanowski MS, J Allergy Clin Immunol. 2008;121(suppl):S231. Beasley R, Lancet. 2008;372:1039–1048. Shaheen SO, 2000;55:266–270. Shaheen S, Eur Respir J. 2008;32:1231–1236. Davey G, J Allergy Clin Immunol. 2005;116:863–868. McKeever TM, Am J Respir Crit Care Med. 2005;171:966–971. Barr RG, Am J Respir Crit Care Med. 2004;169:836–841. Thomsen SF, J Asthma. 2008;45:675–676. Lesko SM, Pediatrics. 2002;109:e20. Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300.
  • 65. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 4° Exposure before response: Observed in studies of paracetamol exposure: - in the intrauterine environment - in infancy - in adult life Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. Shaheen SO, Thorax 2002;57:958-63. Shaheen SO, Clin Exp Allergy 2005;35:18-25. Rebordosa C, Int J Epidemiol2008;37:583-90. Koniman R, Pediatr Allergy Immunol 2007;18:128-34. Garcia-Marcos L, Int Arch Allergy Immunol2008;149:33-7. Persky V, Ann Alle Asthma Immunol 2008;101:271-8. Perzanowski MS, JACI 2008;121(suppl):S231. Beasley R, Lancet. 2008;372:1039–1048. Barr RG, Am J Respir Crit Care Med. 2004;169:836–841. Thomsen SF, J Asthma. 2008;45:675–676.
  • 66. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 5° Biologic plausibility: - Through increased oxidant- induced inflammation and potentially enhanced T H 2 response Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. Nuttall SL, J Clin Pharmacy Ther. 2003;28:251–257. Micheli L, Environ Health Perspect. 1994;102(suppl 9):63–64. Dimova S, Int J Biochem Cell Biol. 2005;37:1727–1737. Barnes PJ, Free Radic Biol Med. 1990;9:235–243. Peterson JD, Proc Natl Acad Sci U S A. 1998;95:3071–3076.
  • 67. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 6° Removal of exposure prevents disease: - Not yet examined Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. but..Giuseppina and Michele
  • 68. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 7° Specificity: - No increased risk of asthma associated with aspirin or other nonsteroidal anti-inflammatory drugs Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. Kurth T, Thorax. 2008;63:514–518. Barr RG, Am J Respir Crit Care Med. 2007;175:120–125.
  • 69. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 8° Temporal association: - International trends of increasing paracetamol use and increasing prevalence of asthma Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. Varner AE, Ann Allergy Asthma Immunol. 1998;81:347–351 der W, N Engl J Med. 2006;355:2226–2235. Bertolini A, CNS Drug Rev. 2006;12:250–275.
  • 70. The acetaminophen and asthma hypothesis 10 years on: A case to answer. Farquhar JACI 2009;124:649 9° Analogy: - Oxidant-induced airway inflammation in asthma (eg, ozone, other pollutants) - protective effects of antioxidant diet in asthma Summary of the evidence linking paracetamol use and asthma based on Bradford Hill criteria of causation Hill AB. Proc R Soc Med 1965;58:295-300. Shaheen SO, Am J Respir Crit Care Med. 2001;164:1823–1828. Rubin RN, Am J Respir Crit Care Med. 2004;169:393–398. McConnell R, Lancet. 2002;359:386–391.
  • 71.
  • 72. OR FOR ASTHMA IN CHILDREN 1.28 PRENATAL 2.0 – 1.5 – 1.0 – 0.5 – 0 1.47 1.60 DURING 1 ST YEAR OF LIFE 1 YEAR PRIOR TO THE DIAGNOSIS OF ASTHMA USE OF ACETAMINOPHEN Acetaminophen Use and the Risk of Asthma in Children and Adults A Systematic Review and Metaanalysis Etminan CHEST 2009; 136:1316
  • 73.
  • 74. Prevalence and risk factors of wheeze and eczema in 1-year-old children: the Butajira birth cohort, Ethiopia Belyhun C EA 2010; 40:619 Maternal allergic history OR for Wheeze 3.0 Paracetamol use by the child OR for Eczema Maternal allergic history 3.68 Paracetamol use by the child 9 – 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 – 0 11 – 10 – 11.0 2.6 4.0 – 3.5 – 3.0 – 2.5 – 2.0 – 1.5 – 1.0 – 0.5 – 0
  • 75.
  • 76. Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski Thorax 2010;65:118 Background: Acetaminophen has been associated with asthma and is in part metabolised via the glutathione pathway. Inner-city minority children have high asthma morbidity and a relatively high frequency of a minor allele variant in the glutathione S transferase Pi gene (GSTP1). We hypothesised that prenatal acetaminophen exposure would predict wheeze at age 5 years in an inner-city minority cohort and examined whether this association was modified by common polymorphisms in genes related to the glutathione pathway.
  • 77.
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  • 79. Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski Thorax 2010;65:118 in children with prenatal exposure to acetaminophen OR for 1.71 P= 0.003 2 – 1 – 0 The risk increased monotonically with increasing number of days of prenatal acetaminophen exposure (p trend <0.001). current wheeze
  • 80. Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski Thorax 2010;65:118 Association between days of acetaminophen use during pregnancy and current wheeze at age 5 years stratified by common polymorphism in the GSTP1 gene. The interaction between any prenatal acetaminophen use and the presence of a G allele (AG or GG) in the GSTP1 (A105G) polymorphism on wheeze at age 5 was statistically significant ( p=0.009 ) in fully adjusted analyses.
  • 81. Association between days of acetaminophen use during pregnancy and current wheeze at age 5 years stratified by common polymorphism in the GSTP1 gene. The interaction between any prenatal acetaminophen use and the presence of a G allele (AG or GG) in the GSTP1 (A105G) polymorphism on wheeze at age 5 was statistically significant (p=0.009) in fully adjusted analyses. Prenatal acetaminophen exposure and risk of wheeze at age 5 years in an urban low-income cohort Perzanowski Thorax 2010;65:118 Prenatal exposure to acetaminophen predicted wheeze at age 5 years in an inner-city minority cohort. The risk was modified by a functional polymorphism in GSTP1, suggesting a mechanism involving the glutathione pathway.
  • 82.
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  • 91. The association between early sensitization patterns and subsequent allergic disease. The DARC birth cohort study. Kjaer Pediatr Allergy Immunol 2009:20:726 ATOPIC DERMATITIS 53% % SUBJECTS ALREADY SENSITISED TO FOOD AT THE AGE 6 MO. ASTHMA RHINOCONJUNCTIVITIS 60 – 50 – 40 – 30 – 20 – 10 – 0 42% 47% AT AGE 6 YRS
  • 92.
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  • 99. Early sensitization was associated with a higher tendency for poly-sensitization at 10 years of age and allergic rhino-conjunctivitis and/or asthma at 13 years of age. Dynamic evolution of serum immunoglobulin E to airborne allergens throughout childhood: results from the Multi-Centre Allergy Study birth cohort Matricard Clinical & Experimental Allergy 2009;39:1551
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  • 102. Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study Holt JACI 2010;125:653 Age-related changes in IgE titers.
  • 103. Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study Holt JACI 2010;125:653 Age-related changes in IgE titers. Aeroallergen-specific IgE titers cycled continuously within the low range in nonatopic subjects.
  • 104. Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study Holt JACI 2010;125:653 Age-related changes in IgE titers. Atopic subjects displayed similar cycling in infancy but eventually locked into a stable pattern of upwardly trending antibody production.
  • 105.
  • 106. Toward improved prediction of risk for atopy and asthma among preschoolers: A prospective cohort study Holt JACI 2010;125:653 Conclusion: The risk for development of persistent wheeze in children can be quantified by means of integration of measures related to early sensitization and early infections . Follow-up studies along similar lines in larger unselected populations to refine this approach are warranted.
  • 107.
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  • 109. House Dust Mite–Promoted Epithelial-to-Mesenchymal Transition in Human Bronchial Epithelium Heijink AJRCMB 2010;42:69 Human bronchial epithelium (16HBE cells) Fibrogenic cytokine TGF-β and protease-containing aeroallergen house dust mite induce epithelial-to-mesenchymal transition (EMT), a key process in tissue repair and remodeling +TGF- β
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  • 119. Effects of pets on asthma development up to 8 years of age: the PIAMA study Kerkhof Allergy 2009:64:1202 Incidence of asthma in different age-periods by the presence of a cat at home (A) or a dog at home (B) at the beginning of the period. Differences were not statistically significant.
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  • 140. Associations Between Secondhand Smoke Exposure and Sleep Patterns in Children Yolton Pediatrics 2010;125:261 WHAT’S KNOWN ON THIS SUBJECT : Adult and adolescent smokers report difficulties with sleep. Young children who are exposed to tobacco smoke have poorer sleep quality. Children with asthma report more sleep problems and are more sensitive to the respiratory effects of tobacco smoke. WHAT THIS STUDY ADDS : We report significant associations between second hand smoke (SHS) exposure, as measured with a biological marker (serum cotinine levels), and sleep problems in children with asthma. Reduction in SHS exposure is an area with the potential for significant impact in the pediatric population.
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  • 145. Effects of nicotine on pulmonary surfactant proteins A and D in ovine lung epithelia Lazic Pediatric Pulmonology 2009;45:255 Exposure to nicotine significantly decreased (Surfactant proteins) SP-A gene expression ( P =0.01) and SP-A protein level in pre-term lambs. Nicotine exposure during the third trimester of pregnancy Pregnant ewes
  • 146. Effects of nicotine on pulmonary surfactant proteins A and D in ovine lung epithelia Lazic Pediatric Pulmonology 2009;45:255 Exposure to nicotine significantly decreased (Surfactant proteins) SP-A gene expression ( P =0.01) and SP-A protein level in pre-term lambs. Nicotine exposure during the third trimester of pregnancy Pregnant ewes SP-A and SP-D, are components of pulmonary innate immunity and have an important role in defense against inhaled pathogens.
  • 147. Rationale: Prenatal exposure to tobacco smoke increases the risk for diseases later in the child's life that may be mediated through alterations in DNA methylation. Objectives : To demonstrate that differences in DNA methylation patterns occur in children exposed to tobacco smoke and that variation in detoxification genes may alter these associations. Prenatal Tobacco Smoke Exposure Affects Global and Gene-specific DNA Methylation Breton AJRCCM 2009:180:462
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  • 164. First trimester maternal tobacco smoking habits and fetal growth Prabhu Thorax 2010;65:235–240 Conclusions: Maternal smoking is associated with reduced fetal measurements in the second and third trimesters but not in the first trimester. Mothers who do not quit smoking during the first trimester deliver smaller infants who go on to have adverse respiratory outcomes in childhood.
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  • 168. CEREBELLUM (mL) 23.1 24.5 EXPOSED NON-EXPOSED P=0.03 150 – 100 – 50 – 0 25 – 20 – 15 – 10 – 5 – 0 FRONTAL LOBE (mL) 118 127 EXPOSED NON-EXPOSED P=0.01 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants Ekblad J Pediatr 2010;156:185 Magnetic Resonance
  • 169. CEREBELLUM (mL) 23.1 24.5 EXPOSED NON-EXPOSED P=0.03 150 – 100 – 50 – 0 25 – 20 – 15 – 10 – 5 – 0 FRONTAL LOBE (mL) 118 127 EXPOSED NON-EXPOSED P=0.01 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants Ekblad J Pediatr 2010;156:185 Magnetic Resonance This is consistent with reports showing an association between prenatal smoking exposure and impairments in frontal lobe and cerebellar functions such as emotion, impulse control , and attention.
  • 170. CEREBELLUM (mL) 23.1 24.5 EXPOSED NON-EXPOSED P=0.03 150 – 100 – 50 – 0 25 – 20 – 15 – 10 – 5 – 0 FRONTAL LOBE (mL) 118 127 EXPOSED NON-EXPOSED P=0.01 Maternal Smoking during Pregnancy and Regional Brain Volumes in Preterm Infants Ekblad J Pediatr 2010;156:185 Magnetic Resonance This is consistent with reports showing an association between prenatal smoking exposure and impairments in frontal lobe and cerebellar functions such as emotion, impulse control , and attention. Mamma grazie per non aver mai fumato….. altrimenti sai che disastro ….
  • 171. Nicotine exerts direct effects on neural cell proliferation, survival, and migration. 1. Roy Neurotoxicol Teratol 1998;20:465. 2. Slotkin Toxicol Appl Pharmacol 2004;198:132. 3. Levitt Drug Alcohol Depend 1998;51:109. Experimental animal studies Clinical studies on the spectrum of smoking-related impairments in frontal lobe and cerebellar functions Deficits in emotion, impulse control, and attention. 1. Obel Paediatr Perinat Epidemiol 1998;12:37 . Magnetic Resonance Imaging Sheds Light on the Nature of Smoking-Induced Effects on Fetal Brain Heinonen J Pediatr 2010;156:175
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  • 183. FUMO E RISPOSTA IMMUNE - INFEZIONI
  • 184. FUMO E FATTORI DI RISCHIO PER INIZIARE
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  • 186. Individual and Social Influences on Progression to Daily Smoking During Adolecence Kim Pediatrics 2009; 124:895 FACTOR ASSOCIATED WITH SMOKING PROGRESSION
  • 187. FUMO E RUOLO DEL PEDIATRA E DELLA SOCIETA’
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  • 189. INFLUENCE OF MOVIE SMOKING EXPOSURE AND TEAM SPORTS PARTICIPATION ON ESTABLISHED SMOKING Adachi-Mejia Arch Ped Adoles Med 2009;163:638 2 – 1 – 0 OR for smoking 1.63 2.01 Exposure to the highest quartile of movie smoking compared with the lowest Sports nonparticipants compared with participants Prevalence of established smokers across quartiles of movie smoking exposure stratified by team sports participation.
  • 190. Fumo e STOP SMOKING
  • 191.
  • 192. Smoking Cessation Chandler Chest 2010;137:428
  • 193. Smoking Cessation Chandler Chest 2010;137:428
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  • 195. Polygraph tracings of four sample subjects in the four group A New Breath-Holding Test May Noninvasively Reveal Early Lung Abnormalities Caused by Smoking and/or Obesity Inoue Chest 2009;136:545
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  • 214. TWO REPRESENTATIVE HOUSEHOLD KITCHEN MEXICO Patsari chimney wood stove Open wood fire Improved Biomass Stove Intervention in Rural Mexico Romieu Am. J. Respir. Crit. Care Med 2009;180:649
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