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MULTIPLE SCLEROSIS -
          Recent perspectives:
             Prof. A.V. SRINIVASAN
Dr.S.Arunan,Dr.C.T.Suresh,Dr.G.Mugundhan,Dr.G.Vikramraj.

               INSTITUTE OF NEUROLOGY
          MADRAS MEDICAL COLLEGE, CHENNAI-3



                    24th MAY 2008
LAND MARKS IN MS:
 Top Ten Events...Thus Far
 1868: MS described by Jean-Martin Charcot.
 1878: Myelin discovered by Louis Ranvier.
 1916: Detailed microscopic description made
  by James Dawson revealed the basic damage
  done in MS.
 1935: An animal form of NIS (EAE) developed
  by Thomas Rivers, ultimately suggesting an
  autoimmune basis for the disease.
 1946: National Multiple Sclerosis Society
  founded by Sylvia Lawry.
 1948: Under an early NMSS grant, oligoclonal bands
  discovered in the spinal fluid by Elvin Kabat and
  others, provided a diagnostic test suggestive of MS
  and linking MS to immune system problems.
 1965: Definite criteria for MS diagnosis developed by
  NMSS expert committee.
 1969-1970: ACTH used to treat MS exacerbations. This
  was the first controlled trial of a successful treatment
  for MS: it used newly standardized diagnostic criteria
  and rating scales to evaluate the efficacy of treatment.

         Success is a prize to be won. Action is the road to it.
       Chance is what may lurk in the shadows at the road side.
                                                                   - O. Henry
 1981: MRI first used to examine a person
  with MS. MRI revolutionized diagnosis
  and provided evidence that MS is a
  constantly active disease even when
  symptoms abate.
 1993: Beta-interferon 1b (Betaseron)
  approved as the first drug to alter the
  course of MS.
 2001:Macdonald’s criteria.
        Discipline Weighs Ounces   Regret Weighs Tons
THE MAGNITUDE:
 Most common nontraumatic neurologic
  cause of disability.
 400000 persons in USA affected.
 USA spends 7 billion per annum(whetten-
  goldstein etal 1998).
 If extrapolated to current economic
  environment MS society – burden of 20
  billion dollars.
"There is dignity in suffering; nobility in pain; but failure is a salted
                wound, that burns and burns again!"
MS epidemics:
EPIDEMIOLOGY:
 The peak onset of MS occurs in the late
  30s. It has been suggested that pubertal
  and sex hormone factors play a role.
 MS clusters - in TIME- favored an
  environmental agent – kutzke etal,1995 and
  other investigators- unable to identify agent.
 North-south gradient- in northern
  hemisphere and south-north gradient in
  southern hemisphere.
  The power to believe in yourself, is the power to change fate
 VITAMIN D-PROBABLE PROTECTIVE ROLE.
  (Islam et al 2007,Van der Mei 2003) - also
  protective for animal model of EAE.
 Smoking – increased risk - odds ratio 1.81(Riise et
  al – Norwegian study) Hawkes et al 2007 – 1.22 –
  1.51 odds ratio – increased risk of MS.
 EBV – Increased risk – 99% of MS patients have
  evidence of EBV while 90% of non MS patients
  have evidence of EBV. Brain infiltrating B and
  plasma cells – 100%evidence of EBV (Serfani etal
  2007) – incidental association or causation?
      Memory, the daughter of attention ,
      is the teeming mother of knowledge    - Martin Tupper
Migration:
Unidentified gene – hunt still on:
 If migration occurs before 15 years – adopted
  country prevelance.(gale and martyn 1995)
 Samples – SMALL.
 Increased incidence - in monozygotic and
  dizygotic twins – Genetic predisposition ?
 Though in northern Europeans -HLA 2 association
  linked-other studies inconclusive (Ebers etal).
 Two loci in IL2 and IL7 – increased risk for
  MS(International MS genetics con 2007;gregory
  etal 2007)
Our greatest glory is not in never failing, but in rising up every time we fail
MS IN INDIA:
 1.33/100000 – Singhal etal.
 2.54% of total neurology admissions between
  January'93 to March'98 -Syal,Khandelwal N, PGI
  Chandigarh.
 In the Parsi - a prevalence of 26/100,000 – Wadia
  etal.
 Optico spinal form more common than west
  -Pandit et al.
 Class II HLA association in 23 MS - non Parsi
  origin DRB1*1501 (50%) similar to western
  studies.11
                   Resistance drains energy
                      Acceptance saves it
             Cheerfulness sustains it -- Anonymous
Where are We:
 The hunt continues.
 Handful of genes might be operative –
  ELUSIVE.
 An environmental agent – STILL
  UNIDENTIFIED.
 IS IT AN INTERPLAY BETWEEN BOTH – A
  PROBABLE YES.

   We do not know one millionth of one percent about anything –
                                                      Thomas Edison
IMMUNO PATHOGENESIS:
 Initiating cause unknown.
 T cells activated – APC - TCR &MHC/ANTIGEN
  COMPLEX – Trimolecular complex – differentiates
  –CD4 and CD8
 T h 1- pro inflammatory -TGF beta + IL 6
  stimulates – CD4 – Th17.
 Treg cells – a subset of CD4 – expresses high
  level ofCD25 and transcription factor Foxp3 (Rose
  and Carlson 2007)
 Migration of Th1 to receptive CNS.
   “ Many Ideas grow better when transplanted into another mind than in the
                  one where they sprang up” - O.W. Holmes
 Reactivation by auto antigens.
 Release of inflammatory cytokines.
 At this level there is significant contribution
  from by B cells.
 Result- axonal loss and demyelination.


      Success is a prize to be won. Action is the road to it.
      Chance is what may lurk in the shadows at the road side.
An active lesion:
LUCCHINETTI CATEGORISATION:
 Type 1- demyelination and macrophages
  relate products.
 Type 2-presence of immunoglobulin and
  complement.
 Type 3-lacks immunoglobulin and
  complement,early loss of myelin associate
  glycoprotein-oligodendrocyte dysfunction.
 Type 4-apoptosis of oligodendrocytes-DNA
  fragmentation.
   Every discovery contains an irrational element or 4 creative intuition
Current concepts:
 Axonal damage and demyelination.
 Remyelination does occur – transient – shadow
  plaque.
 MBP EXON 2 might be responsible – can be
  upregulated.
 Jagged notch pathway –active lesions-can be
  down regulated for remyelination.
 Chemockine ligand 1 can be targeted to prevent
  recruitment of T cells to Breach the BB barrier.
  Motivation is the Spark that lights the Fire of Knowledge and fuels the
  engine of Accomplishment”
Clinical course:
Clinical severity:
   BENIGN AND MALIGNANT MS:
   RELAPSING SUBTYPE.
   FEMALE SEX & AGE LESS THAN 40.
   PROLONGED REMISSION AFTER FIRST
    ATTACK( MORE THAN 1 YEAR)
   INFREQUENT AND MILD RELAPSES WITH
    GOOD RECOVERY.
   MILD DISABILTY OVER 25 YEARS AND LOW
    LESION LOAD IN MRI WITH LITTLE CORTICAL
    ATROPHY.
Marriage and Private Practice are the two extinguishers of science
CLINICAL FEATURES:
 MOTOR.
 SOMATOSENSORY.
 VISUAL-ANTERIOR PATHWAY
  INVOLVED,UNILATERAL,CENTRAL SCOTOMA
  WITH PAIN-CHRACTERISTIC-IMPROVES BY 6
  MONTHS.
 OTHER CARNIAL NERVES AND BRAIN STEM
  SYMPTOMS- INO,MONOCULAR
  NYSTAGMUS,OLFACTORY DISTURBANCE
  ,FACIAL WEAKNESS ETC.

Expert is one who think to his chosen mode of ignorance
 COGNITIVE AND PSYCHIATRY
  DISTURBANCES – PREDOMINANTLY
  SUBCORTICAL(Kotterba etal
  2003,Schltheis et al 2001)
 CORTICAL VARIANT DO OCCUR(Zerei
  and colleagues 2003)
 Depression – 75% suicide 15% of adult
  deaths(Feinstein 2002)
         “ By Nature All Men/ Women are alike but
               by Education widely different”
 FATIGUE-SYSTEMIC AND HANDICAP FATIGUE.
 PAIN – FREQUENT PRIMARY PAIN
  SYNDROMES- NEURALGIC PAIN(5TH
  NERVE,DYSESTHETIC PAIN OF
  LEGS,RADICULAR PAIN,TONIC
  SEIZURES,SPASTIC PAIN,OPTIC NEURITIS
  PAIN.
 SECONDARY PAIN SYNDROMES LIKE LOW
  BACK ACHE AND OSTEPOROSIS WITH
  FRACTURES.
         “ Medical School can be a tool of torture or
                an Instrument of Inspiration”
Paroxysmal symptoms:
   Trigeminal neuralgia.
   Tonic seizures.
   Paroxysmal dysarthria.
   Hemifacial spasm.
   Paroxysmal itching.
   Abrupt loss of muscle tone.
   Paroxysmal aphasia.
   Paroxysmal kinesogenic choreoathetosis.
   Lhermitte’s sign.
Favorable indicators:
   Early age of onset.
   Female sex.
   Optic neuritis as presenting episode.
   Sensory symptoms as presenting episode.
   Acute onset.
   Little residual disabilty.
   Long inter exacerbation period.
   Small lesion load.
Unfavorable indicators:
   Later age of onset.
   Progressive course.
   Male sex.
   Frequent exacerbations.
   Poor recovery.
   Involvement of cerebellar and or motor functions.
   More disease load in MRI.
   Positive oligoclonal bands.
DIAGNOSIS OF MULTIPLE
     SCLEROSIS
Schumacher Diagnostic Criteria
              (Schumacher G, et al. Ann NY Acad Sci 1965)


 The following 6 criteria are essential for a
  diagnosis of “definite MS”:
  – Age between 10-50 yrs
  – Objective abnormalities on exam
  – Two or more separate lesions in the CNS
  – CNS disease must reflect white matter involvement
  – Consistent time course
      Attacks last > 24 hrs; spaced 1 mo apart
      Slow/stepwise progression > 6 mo
  – No better explanation by a physician competent in clinical
    neurology
Poser Diagnostic Criteria
(Poser C, et al Ann Neurol, 1983)
McDonald Diagnostic Criteria
          Primary Progressive MS
 Insidious course with steady progression of
  clinical deficits with paraclinical evidence:
  – DIS by MRI in combination with VER & positive
    CSF
  – DIT by MRI or continued progression for 1 yr




  Thought is the labour of the intellect; Reverie is its pleasure
McDonald Diagnostic Criteria
        MRI-High Specificity & Sensitivity for MS

 Typical MS demyelinating lesions meeting
  at least 3 of the following 4 criteria:
  – At least 1 Gd lesion or at least 9 T2 lesions
  – At least one infratentorial lesion
  – At least one juxtacortical lesion
  – At least 3 periventricular lesions
McDonald Diagnostic Criteria
   MRI-Dissemination in Space
 Stringent MRI Criteria
  – At least 3 of the 4 criteria must be met:
        1 Gd enhancing lesion or 9 T2 lesions
        > 1 Infratentorial lesion
        > 1 Juxtacortical lesion
        > 3 Periventricular lesions
 MRI + CSF Criteria
  – Both of the following must be met:
      > 2 lesions consistent with MS
      CSF showing OCB or increased IgG index
McDonald Diagnostic Criteria
     MRI-Dissemination in Time
 If the first MRI is performed 3 months after the clinical
  event, 1 of the 2 below must be found:
   – > 1 Gd lesion not at site of original attack; or
   – MRI 3 months later showing a new T2 or Gd lesion
 If the first MRI is performed < 3 months after the clinical
  event, then a second MRI done 3 months after the attack
  provides evidence for DIT if 1 of the 2 below must be
  found:
   – New Gd lesion on the second MRI
   – Later MRI showing new T2 or Gd lesion
 MRI Evidence Of Dissemination In Space is when
  three out of four criteria are seen:
 1 Gd-enhancing or 9 T2 hyperintense lesions if no
  Gd-enhancing lesion
 1 or more infratentorial lesions
 1 or more juxtacortical lesions
 3 or more periventricular lesions (1 spinal cord
  lesion can replace a missing infratentorial lesion
  and contribute to the 9 T2-lesions)

    It is a great misfortune not to posses sufficient wit to speak well nor
                      sufficient judgement to keep silent.
                                                     La Broyers Charactor
 The revised MRI criteria for dissemination in
  time are detection of gadolinium enhancement at
  least three months after the onset of the first clinical
  event or detection of a new T2 lesion appearing at any
  time compared with a reference scan done at least 30
  days after the onset of the initial clinical event .
 Positive CSF is oligoclonal IgG bands in CSF (and not
  serum) or elevated IgG index.

 Positive visual evoked potentials (VEP) is delayed but
  well-preserved wave form


               Material Gains Soul Losses
 An Attack is defined as:
 Neurological disturbance of kind seen in MS
 Subjective report or objective observation
 24 hours duration, minimum
 Excludes pseudo attacks, single paroxysmal
  episodes.
 Time Between Attacks is defined as 30 days
  between onset of event 1 and onset of event 2.
New Queensquare’s criteria
 In 2007, new criteria were proposed in
  which DIS requires at least one T2 lesion in
  at least two of four locations (juxtacortical,
  periventricular, infratentorial, and spinal-
  cord) and DIT requires a new T2 lesion on a
  follow-up scan


          “ Back pain – prize human beings pay
             for their UPRIGHT POSTURE”
 The specificity of all criteria for CDMS was
  high (2001 McDonald, 91%; 2005
  McDonald, 88%; new, 87%). Sensitivity of
  the new (72%) and 2005 McDonald (60%)
  criteria were higher than the 2001
  McDonald criteria (47%).


          “ You have got to be before you can do
               and do before you can have”
 The new criteria are simpler than the
  McDonald criteria without compromising
  specificity and accuracy.
 The presence of both DIS and DIT from two
  MRI scans has a higher specificity and risk
  for CDMS than either DIS or DIT alone.



    A true commitment is a heart felt promise to yourself
     from which you will not back down - D. Mcnally
McDonald Diagnostic Criteria
       Correct Application
 Clinical & lab findings typical of MS
 No better explanation of patient’s findings
 Unusual cases require close follow-up
 Criteria may be applied flexibly but not
  casually
 Revisions to criteria may be needed in
  future
McDonald Diagnostic Criteria
    Prospective Performance
               (Dalton, et al Ann Neurol 2002)
 Diagnosis of MS by McDonald Diagnostic
  Criteria in CIS patients at one year after
  presentation compared to reanalysis of
  these patients by Poser criteria at three
  years:
  – Sensitivity: 83%
  – Specificity: 83%
  – PPV: 75%
  – NPV: 89%
Focused Neurologic Exam
           (Adapted from Whitney D, Int J MS Care, 2001)

 MMSE: Attention, psychomotor slowing
 CN: VA, fundoscopic exam, VFs, swinging
  flashlight, EOM evaluating for paresis (INO) &
  nystagmus
 Reflexes: asymmetries, Babinski sign
 Motor: spasticity, pyramidal pattern of weakness
 Sensory: Thoracic or cervical level
 Gait: integrates many functions, 25’ timed walk
 Bladder: PVR (if symptomatic)
Imaging & Lab Work-up for MS
          (Modified from Fleming J, MS & Its Masquerades, AAN-2003)

   Brain MRI with Gd
   VERs
   CBC, Chem 7, Liver enzymes
   Lyme serology (based on exposure history)
   ANA, RPR, ESR
   B12
   TSH
   HIV
   CSF (based on clinical and MRI)
   C & T Spine MRI (if Brain MRI nl or indicated clinically)
   CXR
MRI: FLAIR & T1 with Gadolinium
       (Noseworthy J, et al NEJM, 2000)
MRI: T1 “Black Holes”
MRI: Sagittal Views
MRI: Spinal Imaging
NON CONVENTIONAL MRI:
 MTI :
 Using MTI with gadolinium to improve lesion detection
 Distinguishing lesions of differing severity;
 Studying MTR in brain tissues that appear normal on
  conventional MRI. T1-hypointense lesions ("black holes")
  have a lower MTR than T1 iso intense lesions- Axonal
  damage.
 MTR values fall considerably when gadolinium
  enhancement occurs in lesions, with recovery of MTR over
  months, although not usually back to normal
 Diffusion tensor imaging:
 Chronic lesion : increased ADC and MD with
  decreased FA in chronic T1 hypo intense lesions -
  extensive tissue loss.
 Acute lesion : FA is lower in acute, gadolinium
  enhancing lesions - extracellular oedema - alters
  the anisotropic diffusion. ADC and MD values are
  raised, but the extent may depend upon the lesion
  age.
 ADC – Apparent diffusion co effecient. MD- mean
  diffusion. FA- fractional anisotrophy.


   Many Ideas grow better when transplanted into another mind than in
  the one where they sprang UP                           O.W. Holmos
Visual Evoked Potentials
      (Baker’s Clin Neurol 2003)
Oligoclonal Bands:




           Baker's Clinical Neurology, CDROM-2003
MS Variants:
   Balo’s concentric sclerosis.
   Neuromyeltis optica.
   Marburg Disease.
   Myelinoclastic Diffuse sclerosis.
   Tumefactive multiple sclerosis.
   Clinically isolated syndromes.

          “ Healthy Mind and Healthy expression of Emotion
                          Go hand in Hand”
Balos concentric sclerosis:
 Pathologic diagnosis- rare acute variant-large concentric
  bands of demyelination separated by intact myelin –
  Leukoencephalitis periaxialis concentrica(Karaarslan
  etal2001.
 More common in Phillipines and China.
 Acute,monophasic,20-50 yrs,features of raised
  ICT,seizures,aphasia,decreased level of consiousness.
 CSF similar to MS.
 Differs from MS in clinical presentation,type of lesion & no
  involvement of Brainstem,optic nerve,spinal cord.
 Post mortem diagnosis
No Caption Found




                           IANNUCCI, G. et al. J Neurol Neurosurg Psychiatry 2000;69:399-400



Copyright ©2000 BMJ Publishing Group Ltd.
Neuro myelitis optica:
 NMO is considered - longitiduinally extensive
  myelitis.(more than 3vertebral segments)
                     - optic neuritis.
                     - Normal MRI or atypical
  brain lesions.
  Different from MS- clinically,readiologically and
  pathologically.
  Can be monophasic or relapsing.
  NMOIgG antibody - targets aquaphorin 4 water
  channel – 73%sensitive & 91%specific (Lennon
  &coworkers mayo clinic)
 NMO SPECTRUM DISORDER:
 Idiopathic relasping myelitis
 optic neuropathy.
 Asian optico spinal MS.
 These patients – histopathologically similar
  to NMO & Positive for NMO IgG.


         “Fools Admire but of men of sense approve”
 Eugene Devic (1858-
  1930)- raised two
  questions- Why such a
  peculiar localisation?
 What is the intimate
  nature of the disease?
 Both the questions
  largely unanswered.

                           Eugène Devic (1858–1930).
TUMEFACTIVE MS:
 MARBURG – ACUTE FULMINANT,DEATH BY 1
  YEAR – DUE TO BRINSTEM INVOLVEMENT-
  FEW CASES- MATURE MYELIN CONVERTED
  TO CITRULLINATED AND IMMATURE FORM
  (WOOD etal 1996)
 TUMEFACTIVE MS – LARGE PLAQUES > 2CM
  WITH MASS EFFECT AND RING
  ENHANCEMENT – MIMICKING A TUMOR – NO
  CONSISTENT CLINICAL COURSE KNOWN.


         “ Social Isolation is in itself a pathogenic
              Factor for disease production”
                                               - Dr. Elsen Borg
 Concentric lacunar leukoencephalopathy –
  pathological diagnosis –rare disorder with
  extensive axonal damage and
  demyelination &features of cavitation
  separated with band of gliosis.
 Disseminated subpial demyelination – two
  cases are described – focal neurological
  deficits with mental status changes.


    “ My Opinions are founded on knowledge but modified by experience”
 Schilder’s disease:
                   Handful of cases –
  childhood MS-rare condition.
                   Bilateral symmetric
  hemispherical demyelinating lesions
                   U fibers involved (Kotil etal
  2002)
Monophasic syndromes within the
      spectrum of ADEM:
 Normal MRI and CSF – low risk for
  conversion into MS.
 MRI lesions & Positive CSF- High risk.
  (Fillipi etal 1994,Brex etal 2002)
 Optic neuritis – 12 - 85% conversion to MS.
 Complete transverse myelopathy – low risk
  (2 - 8%)
 Incomplete myelopathy (72 - 80%)
Factors related to risk of
development of MS after Acute ON:
 High Risk – Young adult(26-40 Yrs).
              Venous sheathing.
              Recurrent optic neuritis.
              Female sex.
              History of minor neurological
  symptoms.
              Brain MRI lesions.
              CSF oligoclonal bands or intrathecal
  IgG production.
 Lower risk: Age <10yrs.
              Macular star/exudates.
              Retinal or disc hemorrhage.
              Severe disc edema.
              No Brain MRI lesions.
              Normal CSF
Figure 4 Approach to the diagnosis of multiple sclerosis (MS) in a patient with a typical
     presentation of a clinically isolated syndrome (CIS). CSF, cerebrospinal fluid; MRI, magnetic
                                            resonance imaging.




                                            Trip, S A et al. J Neurol Neurosurg Psychiatry 2005;76:iii11-iii18



Copyright ©2005 BMJ Publishing Group Ltd.
Three Categories of Treatment

   Treatment of disease activity.
   Treatment of exacerbations.
   Treatment of symptoms.




              A open foe may prove a curse ; but
                  a pretended friend is worse
Rationale for disease modifying
          treatments in MS
  Relapsing remitting        Secondary & primary
          MS                   progressive MS

Prevent new inflammatory    Prevent loss of nerve fibres:
lesions:                    (neuroprotection)
β-interferon                ?lamotrigine
Copaxone                    ?cannabinoids
Mitoxantrone
Prevent development of      Remyelination:
secondary progressive MS:   ?stem cells
?possible with existing
treatments
Treatment of Underlying
                   Disease
          Interferons vs. Glatiramer Acetate



Glatirmer acetate is a substitute antigen that mimics myelin
basic protein. It inhibits the CNS immune reactions that are
responsible for tissue damage.
       Given subcutaneously daily injection
       Reduces number of attacks and brain lesions seen on
       MRI patients
       No flu-like side effects associated with interferons
Interferons :

 Discovered in 1957
 Significant antiviral agents
       phenomenon where one
infection with one virus       interferes
with a subsequent      infection with
another virus




     The Truth is fear and immorality are two of the greatest inhibitors
                        of Performance too progress
What are they??


A protein substance naturally produced in the
body and believed to function to modulate the
immune system. Interferons interact with
receptors on non-infected cells to promote the
synthesis of antiviral proteins that prevent
further infection. They belong to Cytokines,
which are hormones of the immune system.
Beta Interferon


Beta interferon-1a
    Avonex – administered weekly by an
   intramuscularly injection (2003)
    Rebif – administered subcutaneously three
   times a week (2002)
Beta interferon-1b
    Betaseron – administered subcutaneously
   every other day (1993)
 Early and aggressive treatment with
  immune stimulating interferons can
  delay diseae progression.


  Prevents crippling symptoms of MS




      “ Men of Genius Admired: Men of Wealth envied:
women of power feared: But only women of character are trusted”
                                            -A- Friedman
Common Side
        Effects…
                 Typical Flu-like symptoms
                 headache, nausea, and fever
                 muscle aches
                Chills
                Irritation at the injection site




Alcohol and exposure to sunlight may irritate side effects
TRIALS:
CHAMPIONS: Avonex altered long-term course MS in patients
who began treatment immediately after initial attack
35% decrease in the rate of developing second attack
42% reduction in new or enlarging T2 hyper intense lesions
              Avonex associated with fewer neutralizing
              antibodies. Binding antibodies decrease the
              medications efficacy. They hasten the drugs
              removal from the bloodstream.
       10 0

        80
                                                 Avonex
        60

        40
                                                 Rebif
        20                                       Betaseron
         0
June 18th 2003
EVIDENCE: Showed that patients on Avonex who converted to
Rebif showed signs of relapse reduction
       Patients taking Rebif had fewer active lesions per MRI
      scan for all studied activity

                         July 21st 2003
QUASIMS: Higher doses and frequencies of interferon beta are
not necessarily better with comparable disease progression
        Annual Relapse rates
              Avonex - .52
              Rebif - .69
Tysabri targets α4-Integrin (VLA4)
adhesion molecule on white blood cells
             White blood cells                     White blood cells use
                          Chemoattractant signal   adhesion molecules
                                                   VLA4 and VCAM1 to
     α 4 (VLA-4)                                   cross the blood-brain
                                                   barrier and enter the
   Blood Vessel Lumen                              brain and cause new
   Endothelial Cells                               inflammatory MS
                                                   lesions
   Brain               VCAM-1

                                                   Tysabri block the
             White blood cells                     VLA4 adhesion
                        Chemoattractant Signal
                                                   molecule on white
                                                   blood cells so
     α 4 (VLA-4)                                   should stop them
                                 Tysabri           from getting in to the
   Blood Vessel Lumen
                                                   brain and causing
   Endothelial Cells                               new MS lesions
   Brain               VCAM-1
Other trials:
 AFFIRM STUDY- NATALIZUMAB MONOTHERAPY
  MORE EFFECTIVE THAN INTERFERONS IN TREATING
  RRMS.
 BEYOND TRIAL-DOUBLE DOSE INTERFERON
  BETA1B – NO ADVANTAGE OVER CONEVENTIONAL
  DOSAGE.
 REGARD TRIAL - THRICE WEEKLY INTERFERON
  SHOWED NO ADVANTAGE OVER GLATIRMER
  ACETATE.
 ETOMS TRIAL- EARLY TREATMENT WITH
  INTERFERONS REDUCED SECOND ATTACK BY 24%
COMBINATION THERAPY:
 NATALIZUMAB WITH IM BETA 1A OVER INTERFERON
  AND PLACEBO – FORMER WAS BETTER – REDUCED
  MRI LOAD AND RELAPSES (RUDICK ETAL 2006)
 PML WAS A DREADED SIDE EFFECT IN TWO
  PATIENTS.
 COMBINATION OF MINOCYCLINE AND GLATIRMER
  ACETATE IS UNDER WAY NOW.
 BETA1A COMBINATION WITH GA (TULLMAN AND
  LUBLIN) WAS SUCCESSFUL AND NOW A PHASE 3
  TRIAL IS ONGOING – RESULTS EXPECTED IN 2011


  “ Maintaining the right attitude is easier than regaining the
                    right mental attitude”
Other drugs:
 MITOXANTRONE:
               Worsening forms of MS –SP,PRMS,RRMS
  WITH ACCUMULATING DISABILITY.
               Cytotoxic anthracenedione
               Multicenter observer blinded placebo controlled
  trial,5mg/m2 or12mg/m2 IV every 3 months for 2 years
  (Hartung etal 2002) – patients receiving 12mg/m 2 did
  better.
                Another European trial combining mitoxantrone
  with methyly prednisone – 86%reduction in new disease
  activity when compared with methyl pred group alone.
                Important cumulative dose dependent cardio
  toxic effect, kept below 140mg/m 2
 CYCLOPHOSPHAMIDE - No consistent benefit
  (canadian cooperative study group 1991).
 AZOTHIOPRINE - Modest effect on relapses.no
  convincing effect on relapses.commonest drug in
  progressive MS-cytostatic agent – More so due to
  lack of effective therapy(british and dutch MS AZT
  trial group1988:Ellison etal 1989:Goodkin etal
  1991).
 METHOTHREXATE - A small trial in Prog MS at
  7.5 mg orally modertae benefit in upper extremity
  function- no effect on ambulation.
 CLADIRIBINE - A large trial in PPMS,SPMS,- no
  benefit after 1 year but gadolinium enhancing
  lesions reduced(Rice etal 2000)
 Cyclosporine – in progressive MS modest
  effect with significant renal toxicity(MS atudy
  group 1990)
 Repetitive course of steroids- one study
  showed no benefit (goodkin etal 1998)while
  another study showed lessened
  accumulation of black holes,atrophy and
  disability (Zivadinov etal 2001)

    Success in life is a matter not so much of talent and opportunity
                   as of concentration and perseverance
                                                                - C.W. Wendte
 IVig – A double blind placebo controlled study in Austria
  (Fazekas etal 1997)-59%reduction in relapses.
         A study in denmark – reduction in Gad Enhancing
  lesions.relapse rate was not significantly reduced.
  (Sorenson etal)
         A study conducted in Israel- relapses
  decreased,number of exacerbation free periods decreased.
         A recently concluded European trial- no activity on
  disease activity.


   Mind is the great level of all things; Human thought is the process by
               which, Human ends are ultimately answered
WHOM TO START AND WHEN TO
         TREAT:
 When to start DMD- as early as possible.
 Interferons,glatirmer acetate- RRMS.
 IFN beta – relapsing form of SPMS (goodin
  etal 2002).
 MITOXONTRONE - Relaping MS
  (RR,SP,PROG.RELAPSING).
 NO SUCCESFUL TRIALS FOR PPMS.
UNANSWERED QUESTIONS:
   DOSE vs DOSING FREQUENCY.
   DOES TIME ON THERAPY MATTER.
   WHEN TO START NATALIZUMAB.
   HIGH DOSE IFN vs NATALIZUMAB.




    “ Peace Rules the day where reason Rules the mind”
                                               - Colling
Symptomatic therapy:
 Spasticity – baclofen 5mg bd (max dose80
  mg in three divided doses).
             -Tizanidine 2mg(max dose 36
  mg). Intrathecal baclofen and botulinium
  toxin are also used now.
 Weakness - 4 amino pyridine K channel
  opener – improves conduction in
  demyelinated nerve fibers- phase three trial
  is on.
       Truth comes out of error sooner than that of confusion
 Psychitaric manifestations:depression is
  commonest ,SSRI –
  citalopram,escitalopram,fluoxetine,sertaralin
 Norepinephrine and dopa reuptake
  inhibitors- bupropion .
 Bipolar disorder-lithium or valproic acid.
 Psychotherapy.

       Opinion is ultimately determined by the feelings
                    and not by the intellect
   Fatigue -Psychotherapy.
             Amantadine.
             Acetyl L carnitine
             Pemoline – hepatotoxic.
             Acetly L carnitine more effective
    than amantadine in a recent double
    blinded trial(Tomassini etal)



    Experience can be defined as yesterday’s answer to today’s problems
Sexual Dysfunction:
 90% have sexual dysfunction and more common
  in RRMS.
 Drugs used for treatment,might be a reason.
 Loss of libido &difficulty in attaining orgasm-
  bupropion 150mg-400mg –seizure side
  effect(crenshaw etal 1987).
 Erectile dysfunction:Sildenafil,vardenafil,tadalafil.
                        Vardenafil faster onset while
  tadalafil longer duration of action.
 Eros therapy – USFDA appproved vacum
  device-increases blood flow and
  engorgement when placed on clitoris.
 Topical esterogen creams & lubricants to
  enhance sexual desire.




       Memory, Pity & Beauty are short lived in life,
            Tinged with emotions persist in life
 Cognitive dysfunction:donezipil- increases
  verbal memory(krupp etal 2004,small
  double lind placebo controlled trial)
 Bladder dysfunction-
  Detrusor hyopreflexia – rule out infection –
  intermittent self catherisation.
  detrusor hyperreflexia – anticholinergics,
  oral,extended release,transdermal patch.


Being ignorant is not so much a shame as being unwilling to learn
 Detrusor sphincter dyssynergia- alpha adrenergic
  antagonists-
  Doxazosin,prazosin,tamsulosin,terazosin along
  with anticholinergics are used.alpha blockers
  prone to cause postural hypotension – if so
  intermittent self catherisation advised.
 Urologic evaluation – if symptoms suggestive of
  dterusor hyper reflexia an voiding
  dysfunction(continum of AAN 2007)




       Dual action of brain is reflected in the duality of god;
         Each is in-separable but has individual existence
 Bowel dysfunction –
 Constipation and fecal incontinence both are
  problems.
 bulk formers-methylcellulose,psyllium.
 Stool softener-docussate sodium.
 Stimulant laxatives-Senna,Bisacodyl.
 Osmotic laxatives-lactulose.
 High fiber diets-fecal impaction and overflow
  incontinence.
TREMOR:
 35% HAVE TREMOR AND 25% are
  disabling.
 Carbamazepine,clonazepam,gabapentin,glu
  tethmide,INH,leviteracetam,primidone,propr
  anolol.
 DBS- not approved – Hooper etal
  2002,showed improved function in 15
  patients.
“Give us the GRACE to accept with serenity the things that cannot be changed;
       T COURAGE to change the things that should be changed and;
        he
                  T W
                    he ISDOM to know the difference”
CONCLUSIONS:
 SIGNIFICANT ADVANCES HAVE BEEN MADE,IN
  IMMUNOPATHOLOGY,CATEGORISATION OF
  SEVERITY,DISEASE MODIFYING DRUGS AND THEIR
  USAGE.
 CRIPPLING DISABLTY CAN BE LIMITED,EARLIER
  DIAGNOSIS AND BETTER SYMPTOMATIC THERAPY
  ARE AVAILABLE NOW.
 RESEARCH IS STILL ON IN FINDING THE ELUSIVE
  GENE OR AN ENVIRONMENTAL AGENT OR BOTH.
 DESPITE ALL THESE ADVANCES TWO THINGS ARE
  STILL UNANSWERED – CURATIVE THERAPY & THE
  EXACT CAUSE FOR MS.
 OVER 140 YEARS MS REMAINS AN UNSOLVED
  PUZZLE AND AN ENIGMA.
Take home advances in MS:
 Queen square criteria – Earlier diagnosis of
  MS.
 DIS & DIT – Predicts conversion rate to
  Definite MS even in CIS.
 NMO & NMO spectrum disorder – distinct
  disorder from MS?
 In terms of Biological difference thin line
  separates PPMS & SPMS.
 TH 17 a Subset of CD4 and Treg
  cells(expressing CD25 & transcription factor
  Fox p 3) – pro inflammatory – a significant
  advance in immunopathogenesis.
 Two new gene loci IL2 and IL 7 -
  IDENTIFIED – needs substantiation.
 EBV, SMOKING – INCREASES RISK OF
  MS WHILE Vitamin D – Decreases risk of
  MS.
 Negative prognosticators are, bladder
  symtoms as presentation, incomplete
  recovery from an attack, shorter interval
  between first and second attack and early
  accumulation of disability.
 Benign MS – percentage of cases less –
  they eventually progress – not ACTUALLY
  BENIGN.
 A MAGIC PILL – BASED ON
  PHRMACOGENETICS(DNA LEVEL) AND
  PHRAMACOGENOMICS(RNA LEVEL)OF
  AN INDIVIDUAL.PROTEOMICS INFCAT
  RESEARCH BEYOND RNA LEVEL –
  FUTURE HOLDS PROMISE .
Dedicated to my family
for making everything worthwhile
READ not to contradict or confute
 Nor to Believe and Take for Granted
 but TO WEIGH AND CONSIDER


THANK YOU
          My sincere thanks to
DrC.T.SURESH,Dr.G.MUGUNTHAN,DR.G.VIKRAMRAJ
                   Dr.S.ARUNAN.
              Institute of Neurology,
                    Chennai-03

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Multiple sclerosis

  • 1. MULTIPLE SCLEROSIS - Recent perspectives: Prof. A.V. SRINIVASAN Dr.S.Arunan,Dr.C.T.Suresh,Dr.G.Mugundhan,Dr.G.Vikramraj. INSTITUTE OF NEUROLOGY MADRAS MEDICAL COLLEGE, CHENNAI-3 24th MAY 2008
  • 2. LAND MARKS IN MS:  Top Ten Events...Thus Far  1868: MS described by Jean-Martin Charcot.  1878: Myelin discovered by Louis Ranvier.  1916: Detailed microscopic description made by James Dawson revealed the basic damage done in MS.  1935: An animal form of NIS (EAE) developed by Thomas Rivers, ultimately suggesting an autoimmune basis for the disease.  1946: National Multiple Sclerosis Society founded by Sylvia Lawry.
  • 3.  1948: Under an early NMSS grant, oligoclonal bands discovered in the spinal fluid by Elvin Kabat and others, provided a diagnostic test suggestive of MS and linking MS to immune system problems.  1965: Definite criteria for MS diagnosis developed by NMSS expert committee.  1969-1970: ACTH used to treat MS exacerbations. This was the first controlled trial of a successful treatment for MS: it used newly standardized diagnostic criteria and rating scales to evaluate the efficacy of treatment. Success is a prize to be won. Action is the road to it. Chance is what may lurk in the shadows at the road side. - O. Henry
  • 4.  1981: MRI first used to examine a person with MS. MRI revolutionized diagnosis and provided evidence that MS is a constantly active disease even when symptoms abate.  1993: Beta-interferon 1b (Betaseron) approved as the first drug to alter the course of MS.  2001:Macdonald’s criteria. Discipline Weighs Ounces Regret Weighs Tons
  • 5. THE MAGNITUDE:  Most common nontraumatic neurologic cause of disability.  400000 persons in USA affected.  USA spends 7 billion per annum(whetten- goldstein etal 1998).  If extrapolated to current economic environment MS society – burden of 20 billion dollars. "There is dignity in suffering; nobility in pain; but failure is a salted wound, that burns and burns again!"
  • 6.
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  • 10. EPIDEMIOLOGY:  The peak onset of MS occurs in the late 30s. It has been suggested that pubertal and sex hormone factors play a role.  MS clusters - in TIME- favored an environmental agent – kutzke etal,1995 and other investigators- unable to identify agent.  North-south gradient- in northern hemisphere and south-north gradient in southern hemisphere. The power to believe in yourself, is the power to change fate
  • 11.  VITAMIN D-PROBABLE PROTECTIVE ROLE. (Islam et al 2007,Van der Mei 2003) - also protective for animal model of EAE.  Smoking – increased risk - odds ratio 1.81(Riise et al – Norwegian study) Hawkes et al 2007 – 1.22 – 1.51 odds ratio – increased risk of MS.  EBV – Increased risk – 99% of MS patients have evidence of EBV while 90% of non MS patients have evidence of EBV. Brain infiltrating B and plasma cells – 100%evidence of EBV (Serfani etal 2007) – incidental association or causation? Memory, the daughter of attention , is the teeming mother of knowledge - Martin Tupper
  • 13. Unidentified gene – hunt still on:
  • 14.
  • 15.  If migration occurs before 15 years – adopted country prevelance.(gale and martyn 1995)  Samples – SMALL.  Increased incidence - in monozygotic and dizygotic twins – Genetic predisposition ?  Though in northern Europeans -HLA 2 association linked-other studies inconclusive (Ebers etal).  Two loci in IL2 and IL7 – increased risk for MS(International MS genetics con 2007;gregory etal 2007) Our greatest glory is not in never failing, but in rising up every time we fail
  • 16. MS IN INDIA:  1.33/100000 – Singhal etal.  2.54% of total neurology admissions between January'93 to March'98 -Syal,Khandelwal N, PGI Chandigarh.  In the Parsi - a prevalence of 26/100,000 – Wadia etal.  Optico spinal form more common than west -Pandit et al.  Class II HLA association in 23 MS - non Parsi origin DRB1*1501 (50%) similar to western studies.11 Resistance drains energy Acceptance saves it Cheerfulness sustains it -- Anonymous
  • 17. Where are We:  The hunt continues.  Handful of genes might be operative – ELUSIVE.  An environmental agent – STILL UNIDENTIFIED.  IS IT AN INTERPLAY BETWEEN BOTH – A PROBABLE YES. We do not know one millionth of one percent about anything – Thomas Edison
  • 19.  Initiating cause unknown.  T cells activated – APC - TCR &MHC/ANTIGEN COMPLEX – Trimolecular complex – differentiates –CD4 and CD8  T h 1- pro inflammatory -TGF beta + IL 6 stimulates – CD4 – Th17.  Treg cells – a subset of CD4 – expresses high level ofCD25 and transcription factor Foxp3 (Rose and Carlson 2007)  Migration of Th1 to receptive CNS. “ Many Ideas grow better when transplanted into another mind than in the one where they sprang up” - O.W. Holmes
  • 20.  Reactivation by auto antigens.  Release of inflammatory cytokines.  At this level there is significant contribution from by B cells.  Result- axonal loss and demyelination. Success is a prize to be won. Action is the road to it. Chance is what may lurk in the shadows at the road side.
  • 22. LUCCHINETTI CATEGORISATION:  Type 1- demyelination and macrophages relate products.  Type 2-presence of immunoglobulin and complement.  Type 3-lacks immunoglobulin and complement,early loss of myelin associate glycoprotein-oligodendrocyte dysfunction.  Type 4-apoptosis of oligodendrocytes-DNA fragmentation. Every discovery contains an irrational element or 4 creative intuition
  • 23. Current concepts:  Axonal damage and demyelination.  Remyelination does occur – transient – shadow plaque.  MBP EXON 2 might be responsible – can be upregulated.  Jagged notch pathway –active lesions-can be down regulated for remyelination.  Chemockine ligand 1 can be targeted to prevent recruitment of T cells to Breach the BB barrier. Motivation is the Spark that lights the Fire of Knowledge and fuels the engine of Accomplishment”
  • 25. Clinical severity:  BENIGN AND MALIGNANT MS:  RELAPSING SUBTYPE.  FEMALE SEX & AGE LESS THAN 40.  PROLONGED REMISSION AFTER FIRST ATTACK( MORE THAN 1 YEAR)  INFREQUENT AND MILD RELAPSES WITH GOOD RECOVERY.  MILD DISABILTY OVER 25 YEARS AND LOW LESION LOAD IN MRI WITH LITTLE CORTICAL ATROPHY. Marriage and Private Practice are the two extinguishers of science
  • 26. CLINICAL FEATURES:  MOTOR.  SOMATOSENSORY.  VISUAL-ANTERIOR PATHWAY INVOLVED,UNILATERAL,CENTRAL SCOTOMA WITH PAIN-CHRACTERISTIC-IMPROVES BY 6 MONTHS.  OTHER CARNIAL NERVES AND BRAIN STEM SYMPTOMS- INO,MONOCULAR NYSTAGMUS,OLFACTORY DISTURBANCE ,FACIAL WEAKNESS ETC. Expert is one who think to his chosen mode of ignorance
  • 27.  COGNITIVE AND PSYCHIATRY DISTURBANCES – PREDOMINANTLY SUBCORTICAL(Kotterba etal 2003,Schltheis et al 2001)  CORTICAL VARIANT DO OCCUR(Zerei and colleagues 2003)  Depression – 75% suicide 15% of adult deaths(Feinstein 2002) “ By Nature All Men/ Women are alike but by Education widely different”
  • 28.  FATIGUE-SYSTEMIC AND HANDICAP FATIGUE.  PAIN – FREQUENT PRIMARY PAIN SYNDROMES- NEURALGIC PAIN(5TH NERVE,DYSESTHETIC PAIN OF LEGS,RADICULAR PAIN,TONIC SEIZURES,SPASTIC PAIN,OPTIC NEURITIS PAIN.  SECONDARY PAIN SYNDROMES LIKE LOW BACK ACHE AND OSTEPOROSIS WITH FRACTURES. “ Medical School can be a tool of torture or an Instrument of Inspiration”
  • 29. Paroxysmal symptoms:  Trigeminal neuralgia.  Tonic seizures.  Paroxysmal dysarthria.  Hemifacial spasm.  Paroxysmal itching.  Abrupt loss of muscle tone.  Paroxysmal aphasia.  Paroxysmal kinesogenic choreoathetosis.  Lhermitte’s sign.
  • 30. Favorable indicators:  Early age of onset.  Female sex.  Optic neuritis as presenting episode.  Sensory symptoms as presenting episode.  Acute onset.  Little residual disabilty.  Long inter exacerbation period.  Small lesion load.
  • 31. Unfavorable indicators:  Later age of onset.  Progressive course.  Male sex.  Frequent exacerbations.  Poor recovery.  Involvement of cerebellar and or motor functions.  More disease load in MRI.  Positive oligoclonal bands.
  • 33. Schumacher Diagnostic Criteria (Schumacher G, et al. Ann NY Acad Sci 1965)  The following 6 criteria are essential for a diagnosis of “definite MS”: – Age between 10-50 yrs – Objective abnormalities on exam – Two or more separate lesions in the CNS – CNS disease must reflect white matter involvement – Consistent time course  Attacks last > 24 hrs; spaced 1 mo apart  Slow/stepwise progression > 6 mo – No better explanation by a physician competent in clinical neurology
  • 34. Poser Diagnostic Criteria (Poser C, et al Ann Neurol, 1983)
  • 35. McDonald Diagnostic Criteria Primary Progressive MS  Insidious course with steady progression of clinical deficits with paraclinical evidence: – DIS by MRI in combination with VER & positive CSF – DIT by MRI or continued progression for 1 yr Thought is the labour of the intellect; Reverie is its pleasure
  • 36. McDonald Diagnostic Criteria MRI-High Specificity & Sensitivity for MS  Typical MS demyelinating lesions meeting at least 3 of the following 4 criteria: – At least 1 Gd lesion or at least 9 T2 lesions – At least one infratentorial lesion – At least one juxtacortical lesion – At least 3 periventricular lesions
  • 37. McDonald Diagnostic Criteria MRI-Dissemination in Space  Stringent MRI Criteria – At least 3 of the 4 criteria must be met:  1 Gd enhancing lesion or 9 T2 lesions  > 1 Infratentorial lesion  > 1 Juxtacortical lesion  > 3 Periventricular lesions  MRI + CSF Criteria – Both of the following must be met:  > 2 lesions consistent with MS  CSF showing OCB or increased IgG index
  • 38. McDonald Diagnostic Criteria MRI-Dissemination in Time  If the first MRI is performed 3 months after the clinical event, 1 of the 2 below must be found: – > 1 Gd lesion not at site of original attack; or – MRI 3 months later showing a new T2 or Gd lesion  If the first MRI is performed < 3 months after the clinical event, then a second MRI done 3 months after the attack provides evidence for DIT if 1 of the 2 below must be found: – New Gd lesion on the second MRI – Later MRI showing new T2 or Gd lesion
  • 39.
  • 40.  MRI Evidence Of Dissemination In Space is when three out of four criteria are seen:  1 Gd-enhancing or 9 T2 hyperintense lesions if no Gd-enhancing lesion  1 or more infratentorial lesions  1 or more juxtacortical lesions  3 or more periventricular lesions (1 spinal cord lesion can replace a missing infratentorial lesion and contribute to the 9 T2-lesions) It is a great misfortune not to posses sufficient wit to speak well nor sufficient judgement to keep silent. La Broyers Charactor
  • 41.  The revised MRI criteria for dissemination in time are detection of gadolinium enhancement at least three months after the onset of the first clinical event or detection of a new T2 lesion appearing at any time compared with a reference scan done at least 30 days after the onset of the initial clinical event .  Positive CSF is oligoclonal IgG bands in CSF (and not serum) or elevated IgG index.  Positive visual evoked potentials (VEP) is delayed but well-preserved wave form Material Gains Soul Losses
  • 42.  An Attack is defined as:  Neurological disturbance of kind seen in MS  Subjective report or objective observation  24 hours duration, minimum  Excludes pseudo attacks, single paroxysmal episodes.  Time Between Attacks is defined as 30 days between onset of event 1 and onset of event 2.
  • 43. New Queensquare’s criteria  In 2007, new criteria were proposed in which DIS requires at least one T2 lesion in at least two of four locations (juxtacortical, periventricular, infratentorial, and spinal- cord) and DIT requires a new T2 lesion on a follow-up scan “ Back pain – prize human beings pay for their UPRIGHT POSTURE”
  • 44.  The specificity of all criteria for CDMS was high (2001 McDonald, 91%; 2005 McDonald, 88%; new, 87%). Sensitivity of the new (72%) and 2005 McDonald (60%) criteria were higher than the 2001 McDonald criteria (47%). “ You have got to be before you can do and do before you can have”
  • 45.  The new criteria are simpler than the McDonald criteria without compromising specificity and accuracy.  The presence of both DIS and DIT from two MRI scans has a higher specificity and risk for CDMS than either DIS or DIT alone. A true commitment is a heart felt promise to yourself from which you will not back down - D. Mcnally
  • 46.
  • 47.
  • 48. McDonald Diagnostic Criteria Correct Application  Clinical & lab findings typical of MS  No better explanation of patient’s findings  Unusual cases require close follow-up  Criteria may be applied flexibly but not casually  Revisions to criteria may be needed in future
  • 49. McDonald Diagnostic Criteria Prospective Performance (Dalton, et al Ann Neurol 2002)  Diagnosis of MS by McDonald Diagnostic Criteria in CIS patients at one year after presentation compared to reanalysis of these patients by Poser criteria at three years: – Sensitivity: 83% – Specificity: 83% – PPV: 75% – NPV: 89%
  • 50. Focused Neurologic Exam (Adapted from Whitney D, Int J MS Care, 2001)  MMSE: Attention, psychomotor slowing  CN: VA, fundoscopic exam, VFs, swinging flashlight, EOM evaluating for paresis (INO) & nystagmus  Reflexes: asymmetries, Babinski sign  Motor: spasticity, pyramidal pattern of weakness  Sensory: Thoracic or cervical level  Gait: integrates many functions, 25’ timed walk  Bladder: PVR (if symptomatic)
  • 51. Imaging & Lab Work-up for MS (Modified from Fleming J, MS & Its Masquerades, AAN-2003)  Brain MRI with Gd  VERs  CBC, Chem 7, Liver enzymes  Lyme serology (based on exposure history)  ANA, RPR, ESR  B12  TSH  HIV  CSF (based on clinical and MRI)  C & T Spine MRI (if Brain MRI nl or indicated clinically)  CXR
  • 52. MRI: FLAIR & T1 with Gadolinium (Noseworthy J, et al NEJM, 2000)
  • 53. MRI: T1 “Black Holes”
  • 56. NON CONVENTIONAL MRI:  MTI :  Using MTI with gadolinium to improve lesion detection  Distinguishing lesions of differing severity;  Studying MTR in brain tissues that appear normal on conventional MRI. T1-hypointense lesions ("black holes") have a lower MTR than T1 iso intense lesions- Axonal damage.  MTR values fall considerably when gadolinium enhancement occurs in lesions, with recovery of MTR over months, although not usually back to normal
  • 57.  Diffusion tensor imaging:  Chronic lesion : increased ADC and MD with decreased FA in chronic T1 hypo intense lesions - extensive tissue loss.  Acute lesion : FA is lower in acute, gadolinium enhancing lesions - extracellular oedema - alters the anisotropic diffusion. ADC and MD values are raised, but the extent may depend upon the lesion age.  ADC – Apparent diffusion co effecient. MD- mean diffusion. FA- fractional anisotrophy. Many Ideas grow better when transplanted into another mind than in the one where they sprang UP O.W. Holmos
  • 58. Visual Evoked Potentials (Baker’s Clin Neurol 2003)
  • 59. Oligoclonal Bands: Baker's Clinical Neurology, CDROM-2003
  • 60. MS Variants:  Balo’s concentric sclerosis.  Neuromyeltis optica.  Marburg Disease.  Myelinoclastic Diffuse sclerosis.  Tumefactive multiple sclerosis.  Clinically isolated syndromes. “ Healthy Mind and Healthy expression of Emotion Go hand in Hand”
  • 61. Balos concentric sclerosis:  Pathologic diagnosis- rare acute variant-large concentric bands of demyelination separated by intact myelin – Leukoencephalitis periaxialis concentrica(Karaarslan etal2001.  More common in Phillipines and China.  Acute,monophasic,20-50 yrs,features of raised ICT,seizures,aphasia,decreased level of consiousness.  CSF similar to MS.  Differs from MS in clinical presentation,type of lesion & no involvement of Brainstem,optic nerve,spinal cord.  Post mortem diagnosis
  • 62. No Caption Found IANNUCCI, G. et al. J Neurol Neurosurg Psychiatry 2000;69:399-400 Copyright ©2000 BMJ Publishing Group Ltd.
  • 64.  NMO is considered - longitiduinally extensive myelitis.(more than 3vertebral segments) - optic neuritis. - Normal MRI or atypical brain lesions. Different from MS- clinically,readiologically and pathologically. Can be monophasic or relapsing. NMOIgG antibody - targets aquaphorin 4 water channel – 73%sensitive & 91%specific (Lennon &coworkers mayo clinic)
  • 65.  NMO SPECTRUM DISORDER: Idiopathic relasping myelitis optic neuropathy. Asian optico spinal MS. These patients – histopathologically similar to NMO & Positive for NMO IgG. “Fools Admire but of men of sense approve”
  • 66.  Eugene Devic (1858- 1930)- raised two questions- Why such a peculiar localisation?  What is the intimate nature of the disease?  Both the questions largely unanswered. Eugène Devic (1858–1930).
  • 68.  MARBURG – ACUTE FULMINANT,DEATH BY 1 YEAR – DUE TO BRINSTEM INVOLVEMENT- FEW CASES- MATURE MYELIN CONVERTED TO CITRULLINATED AND IMMATURE FORM (WOOD etal 1996)  TUMEFACTIVE MS – LARGE PLAQUES > 2CM WITH MASS EFFECT AND RING ENHANCEMENT – MIMICKING A TUMOR – NO CONSISTENT CLINICAL COURSE KNOWN. “ Social Isolation is in itself a pathogenic Factor for disease production” - Dr. Elsen Borg
  • 69.  Concentric lacunar leukoencephalopathy – pathological diagnosis –rare disorder with extensive axonal damage and demyelination &features of cavitation separated with band of gliosis.  Disseminated subpial demyelination – two cases are described – focal neurological deficits with mental status changes. “ My Opinions are founded on knowledge but modified by experience”
  • 70.  Schilder’s disease: Handful of cases – childhood MS-rare condition. Bilateral symmetric hemispherical demyelinating lesions U fibers involved (Kotil etal 2002)
  • 71. Monophasic syndromes within the spectrum of ADEM:  Normal MRI and CSF – low risk for conversion into MS.  MRI lesions & Positive CSF- High risk. (Fillipi etal 1994,Brex etal 2002)  Optic neuritis – 12 - 85% conversion to MS.  Complete transverse myelopathy – low risk (2 - 8%)  Incomplete myelopathy (72 - 80%)
  • 72. Factors related to risk of development of MS after Acute ON:  High Risk – Young adult(26-40 Yrs). Venous sheathing. Recurrent optic neuritis. Female sex. History of minor neurological symptoms. Brain MRI lesions. CSF oligoclonal bands or intrathecal IgG production.
  • 73.  Lower risk: Age <10yrs. Macular star/exudates. Retinal or disc hemorrhage. Severe disc edema. No Brain MRI lesions. Normal CSF
  • 74. Figure 4 Approach to the diagnosis of multiple sclerosis (MS) in a patient with a typical presentation of a clinically isolated syndrome (CIS). CSF, cerebrospinal fluid; MRI, magnetic resonance imaging. Trip, S A et al. J Neurol Neurosurg Psychiatry 2005;76:iii11-iii18 Copyright ©2005 BMJ Publishing Group Ltd.
  • 75. Three Categories of Treatment  Treatment of disease activity.  Treatment of exacerbations.  Treatment of symptoms. A open foe may prove a curse ; but a pretended friend is worse
  • 76. Rationale for disease modifying treatments in MS Relapsing remitting Secondary & primary MS progressive MS Prevent new inflammatory Prevent loss of nerve fibres: lesions: (neuroprotection) β-interferon ?lamotrigine Copaxone ?cannabinoids Mitoxantrone Prevent development of Remyelination: secondary progressive MS: ?stem cells ?possible with existing treatments
  • 77. Treatment of Underlying Disease Interferons vs. Glatiramer Acetate Glatirmer acetate is a substitute antigen that mimics myelin basic protein. It inhibits the CNS immune reactions that are responsible for tissue damage. Given subcutaneously daily injection Reduces number of attacks and brain lesions seen on MRI patients No flu-like side effects associated with interferons
  • 78. Interferons :  Discovered in 1957  Significant antiviral agents  phenomenon where one infection with one virus interferes with a subsequent infection with another virus The Truth is fear and immorality are two of the greatest inhibitors of Performance too progress
  • 79. What are they?? A protein substance naturally produced in the body and believed to function to modulate the immune system. Interferons interact with receptors on non-infected cells to promote the synthesis of antiviral proteins that prevent further infection. They belong to Cytokines, which are hormones of the immune system.
  • 80. Beta Interferon Beta interferon-1a  Avonex – administered weekly by an intramuscularly injection (2003)  Rebif – administered subcutaneously three times a week (2002) Beta interferon-1b  Betaseron – administered subcutaneously every other day (1993)
  • 81.  Early and aggressive treatment with immune stimulating interferons can delay diseae progression. Prevents crippling symptoms of MS “ Men of Genius Admired: Men of Wealth envied: women of power feared: But only women of character are trusted” -A- Friedman
  • 82. Common Side Effects…  Typical Flu-like symptoms  headache, nausea, and fever  muscle aches Chills Irritation at the injection site Alcohol and exposure to sunlight may irritate side effects
  • 83. TRIALS: CHAMPIONS: Avonex altered long-term course MS in patients who began treatment immediately after initial attack 35% decrease in the rate of developing second attack 42% reduction in new or enlarging T2 hyper intense lesions Avonex associated with fewer neutralizing antibodies. Binding antibodies decrease the medications efficacy. They hasten the drugs removal from the bloodstream. 10 0 80 Avonex 60 40 Rebif 20 Betaseron 0
  • 84. June 18th 2003 EVIDENCE: Showed that patients on Avonex who converted to Rebif showed signs of relapse reduction  Patients taking Rebif had fewer active lesions per MRI scan for all studied activity July 21st 2003 QUASIMS: Higher doses and frequencies of interferon beta are not necessarily better with comparable disease progression  Annual Relapse rates Avonex - .52 Rebif - .69
  • 85. Tysabri targets α4-Integrin (VLA4) adhesion molecule on white blood cells White blood cells White blood cells use Chemoattractant signal adhesion molecules VLA4 and VCAM1 to α 4 (VLA-4) cross the blood-brain barrier and enter the Blood Vessel Lumen brain and cause new Endothelial Cells inflammatory MS lesions Brain VCAM-1 Tysabri block the White blood cells VLA4 adhesion Chemoattractant Signal molecule on white blood cells so α 4 (VLA-4) should stop them Tysabri from getting in to the Blood Vessel Lumen brain and causing Endothelial Cells new MS lesions Brain VCAM-1
  • 86. Other trials:  AFFIRM STUDY- NATALIZUMAB MONOTHERAPY MORE EFFECTIVE THAN INTERFERONS IN TREATING RRMS.  BEYOND TRIAL-DOUBLE DOSE INTERFERON BETA1B – NO ADVANTAGE OVER CONEVENTIONAL DOSAGE.  REGARD TRIAL - THRICE WEEKLY INTERFERON SHOWED NO ADVANTAGE OVER GLATIRMER ACETATE.  ETOMS TRIAL- EARLY TREATMENT WITH INTERFERONS REDUCED SECOND ATTACK BY 24%
  • 87. COMBINATION THERAPY:  NATALIZUMAB WITH IM BETA 1A OVER INTERFERON AND PLACEBO – FORMER WAS BETTER – REDUCED MRI LOAD AND RELAPSES (RUDICK ETAL 2006)  PML WAS A DREADED SIDE EFFECT IN TWO PATIENTS.  COMBINATION OF MINOCYCLINE AND GLATIRMER ACETATE IS UNDER WAY NOW.  BETA1A COMBINATION WITH GA (TULLMAN AND LUBLIN) WAS SUCCESSFUL AND NOW A PHASE 3 TRIAL IS ONGOING – RESULTS EXPECTED IN 2011 “ Maintaining the right attitude is easier than regaining the right mental attitude”
  • 88. Other drugs:  MITOXANTRONE: Worsening forms of MS –SP,PRMS,RRMS WITH ACCUMULATING DISABILITY. Cytotoxic anthracenedione Multicenter observer blinded placebo controlled trial,5mg/m2 or12mg/m2 IV every 3 months for 2 years (Hartung etal 2002) – patients receiving 12mg/m 2 did better. Another European trial combining mitoxantrone with methyly prednisone – 86%reduction in new disease activity when compared with methyl pred group alone. Important cumulative dose dependent cardio toxic effect, kept below 140mg/m 2
  • 89.  CYCLOPHOSPHAMIDE - No consistent benefit (canadian cooperative study group 1991).  AZOTHIOPRINE - Modest effect on relapses.no convincing effect on relapses.commonest drug in progressive MS-cytostatic agent – More so due to lack of effective therapy(british and dutch MS AZT trial group1988:Ellison etal 1989:Goodkin etal 1991).  METHOTHREXATE - A small trial in Prog MS at 7.5 mg orally modertae benefit in upper extremity function- no effect on ambulation.  CLADIRIBINE - A large trial in PPMS,SPMS,- no benefit after 1 year but gadolinium enhancing lesions reduced(Rice etal 2000)
  • 90.  Cyclosporine – in progressive MS modest effect with significant renal toxicity(MS atudy group 1990)  Repetitive course of steroids- one study showed no benefit (goodkin etal 1998)while another study showed lessened accumulation of black holes,atrophy and disability (Zivadinov etal 2001) Success in life is a matter not so much of talent and opportunity as of concentration and perseverance - C.W. Wendte
  • 91.  IVig – A double blind placebo controlled study in Austria (Fazekas etal 1997)-59%reduction in relapses. A study in denmark – reduction in Gad Enhancing lesions.relapse rate was not significantly reduced. (Sorenson etal) A study conducted in Israel- relapses decreased,number of exacerbation free periods decreased. A recently concluded European trial- no activity on disease activity. Mind is the great level of all things; Human thought is the process by which, Human ends are ultimately answered
  • 92. WHOM TO START AND WHEN TO TREAT:  When to start DMD- as early as possible.  Interferons,glatirmer acetate- RRMS.  IFN beta – relapsing form of SPMS (goodin etal 2002).  MITOXONTRONE - Relaping MS (RR,SP,PROG.RELAPSING).  NO SUCCESFUL TRIALS FOR PPMS.
  • 93. UNANSWERED QUESTIONS:  DOSE vs DOSING FREQUENCY.  DOES TIME ON THERAPY MATTER.  WHEN TO START NATALIZUMAB.  HIGH DOSE IFN vs NATALIZUMAB. “ Peace Rules the day where reason Rules the mind” - Colling
  • 94. Symptomatic therapy:  Spasticity – baclofen 5mg bd (max dose80 mg in three divided doses). -Tizanidine 2mg(max dose 36 mg). Intrathecal baclofen and botulinium toxin are also used now.  Weakness - 4 amino pyridine K channel opener – improves conduction in demyelinated nerve fibers- phase three trial is on. Truth comes out of error sooner than that of confusion
  • 95.  Psychitaric manifestations:depression is commonest ,SSRI – citalopram,escitalopram,fluoxetine,sertaralin  Norepinephrine and dopa reuptake inhibitors- bupropion .  Bipolar disorder-lithium or valproic acid.  Psychotherapy. Opinion is ultimately determined by the feelings and not by the intellect
  • 96. Fatigue -Psychotherapy. Amantadine. Acetyl L carnitine Pemoline – hepatotoxic. Acetly L carnitine more effective than amantadine in a recent double blinded trial(Tomassini etal) Experience can be defined as yesterday’s answer to today’s problems
  • 97. Sexual Dysfunction:  90% have sexual dysfunction and more common in RRMS.  Drugs used for treatment,might be a reason.  Loss of libido &difficulty in attaining orgasm- bupropion 150mg-400mg –seizure side effect(crenshaw etal 1987).  Erectile dysfunction:Sildenafil,vardenafil,tadalafil. Vardenafil faster onset while tadalafil longer duration of action.
  • 98.  Eros therapy – USFDA appproved vacum device-increases blood flow and engorgement when placed on clitoris.  Topical esterogen creams & lubricants to enhance sexual desire. Memory, Pity & Beauty are short lived in life, Tinged with emotions persist in life
  • 99.  Cognitive dysfunction:donezipil- increases verbal memory(krupp etal 2004,small double lind placebo controlled trial)  Bladder dysfunction- Detrusor hyopreflexia – rule out infection – intermittent self catherisation. detrusor hyperreflexia – anticholinergics, oral,extended release,transdermal patch. Being ignorant is not so much a shame as being unwilling to learn
  • 100.  Detrusor sphincter dyssynergia- alpha adrenergic antagonists- Doxazosin,prazosin,tamsulosin,terazosin along with anticholinergics are used.alpha blockers prone to cause postural hypotension – if so intermittent self catherisation advised.  Urologic evaluation – if symptoms suggestive of dterusor hyper reflexia an voiding dysfunction(continum of AAN 2007) Dual action of brain is reflected in the duality of god; Each is in-separable but has individual existence
  • 101.  Bowel dysfunction –  Constipation and fecal incontinence both are problems.  bulk formers-methylcellulose,psyllium.  Stool softener-docussate sodium.  Stimulant laxatives-Senna,Bisacodyl.  Osmotic laxatives-lactulose.  High fiber diets-fecal impaction and overflow incontinence.
  • 102. TREMOR:  35% HAVE TREMOR AND 25% are disabling.  Carbamazepine,clonazepam,gabapentin,glu tethmide,INH,leviteracetam,primidone,propr anolol.  DBS- not approved – Hooper etal 2002,showed improved function in 15 patients. “Give us the GRACE to accept with serenity the things that cannot be changed; T COURAGE to change the things that should be changed and; he T W he ISDOM to know the difference”
  • 103. CONCLUSIONS:  SIGNIFICANT ADVANCES HAVE BEEN MADE,IN IMMUNOPATHOLOGY,CATEGORISATION OF SEVERITY,DISEASE MODIFYING DRUGS AND THEIR USAGE.  CRIPPLING DISABLTY CAN BE LIMITED,EARLIER DIAGNOSIS AND BETTER SYMPTOMATIC THERAPY ARE AVAILABLE NOW.  RESEARCH IS STILL ON IN FINDING THE ELUSIVE GENE OR AN ENVIRONMENTAL AGENT OR BOTH.  DESPITE ALL THESE ADVANCES TWO THINGS ARE STILL UNANSWERED – CURATIVE THERAPY & THE EXACT CAUSE FOR MS.  OVER 140 YEARS MS REMAINS AN UNSOLVED PUZZLE AND AN ENIGMA.
  • 104. Take home advances in MS:  Queen square criteria – Earlier diagnosis of MS.  DIS & DIT – Predicts conversion rate to Definite MS even in CIS.  NMO & NMO spectrum disorder – distinct disorder from MS?  In terms of Biological difference thin line separates PPMS & SPMS.
  • 105.  TH 17 a Subset of CD4 and Treg cells(expressing CD25 & transcription factor Fox p 3) – pro inflammatory – a significant advance in immunopathogenesis.  Two new gene loci IL2 and IL 7 - IDENTIFIED – needs substantiation.  EBV, SMOKING – INCREASES RISK OF MS WHILE Vitamin D – Decreases risk of MS.
  • 106.  Negative prognosticators are, bladder symtoms as presentation, incomplete recovery from an attack, shorter interval between first and second attack and early accumulation of disability.  Benign MS – percentage of cases less – they eventually progress – not ACTUALLY BENIGN.
  • 107.  A MAGIC PILL – BASED ON PHRMACOGENETICS(DNA LEVEL) AND PHRAMACOGENOMICS(RNA LEVEL)OF AN INDIVIDUAL.PROTEOMICS INFCAT RESEARCH BEYOND RNA LEVEL – FUTURE HOLDS PROMISE .
  • 108. Dedicated to my family for making everything worthwhile
  • 109.
  • 110. READ not to contradict or confute Nor to Believe and Take for Granted but TO WEIGH AND CONSIDER THANK YOU My sincere thanks to DrC.T.SURESH,Dr.G.MUGUNTHAN,DR.G.VIKRAMRAJ Dr.S.ARUNAN. Institute of Neurology, Chennai-03

Editor's Notes

  1. A list of possible diagnostic criteria for MS
  2. 2 pictures of brain x-rays
  3. 2 more pictures of brain x-rays
  4. 2 pictures of side view head x-rays
  5. The picture of a spine x-ray in the middle
  6. A chart showing the visual evoked potentials
  7. A diagram shows the absence of oligoclonal bands and the presence of them in CSF
  8. Typical flu like symptoms can be treated with fever reducers.
  9. Controlled High Risk Avonex Multiple Sclerosis Prevention Study In Ongoing Neurological Survelillance 13 47 83