NMO & MOG Antibodies Profile (AQP4-IgG & MOG-IgG Tests)

NMO & MOG Antibodies Profile (AQP4-IgG & MOG-IgG Tests)

The NMO & MOG Antibodies Profile includes tests for:
1️⃣ Aquaporin-4 (AQP4) IgG – Associated with Neuromyelitis Optica Spectrum Disorder (NMOSD)
2️⃣ Myelin Oligodendrocyte Glycoprotein (MOG) IgG – Associated with MOG-Associated Disease (MOGAD)

These tests help diagnose and differentiate between NMOSD, MOGAD, and Multiple Sclerosis (MS), as they can present with similar symptoms but require different treatments.


Why is the Test Done?

Diagnose Neuromyelitis Optica Spectrum Disorder (NMOSD) → AQP4-IgG Positive
Diagnose MOG-Associated Disease (MOGAD) → MOG-IgG Positive
Differentiate NMOSD, MOGAD, and MS
Evaluate Causes of Optic Neuritis, Transverse Myelitis, and Brainstem Syndromes
Guide Treatment Decisions – As MS and NMOSD/MOGAD require different therapies


Understanding Test Results

Test Result Interpretation Associated Condition
AQP4-IgG Positive Confirms NMOSD Neuromyelitis Optica Spectrum Disorder
MOG-IgG Positive Confirms MOGAD MOG-Associated Disease
Both Negative NMOSD/MOGAD unlikely Possible MS or another cause

📌 NMOSD is typically AQP4-IgG positive (~70-80% of cases).
📌 MOGAD is typically MOG-IgG positive (~50-80% of cases).
📌 A negative test does NOT fully rule out NMOSD or MOGAD.


Differences Between NMOSD, MOGAD, and MS

Feature NMOSD (AQP4-IgG Positive) MOGAD (MOG-IgG Positive) Multiple Sclerosis (MS)
Antibody AQP4-IgG MOG-IgG Oligoclonal Bands (CSF)
Affected Areas Optic nerve, spinal cord, brainstem Optic nerve, brain, spinal cord Brain, spinal cord
Optic Neuritis (ON) Severe, often bilateral Unilateral, milder, good recovery Unilateral, variable severity
Spinal Cord Lesions Long lesions (≥3 vertebrae) Shorter lesions Short, scattered lesions
Relapses Severe, incomplete recovery Frequent, better recovery Frequent but milder progression
Treatment Immunosuppressants (e.g., Rituximab) Corticosteroids, IVIG MS therapies (Interferons, Fingolimod)

Next Steps After a Positive Test

🔬 Additional Tests:
MRI Brain & Spine – To check lesion patterns
Lumbar Puncture (CSF Analysis) – Oligoclonal bands (present in MS, rare in NMOSD)
Evoked Potentials – Assesses nerve damage

💊 Treatment Options:

  • NMOSD (AQP4-IgG Positive): Rituximab, Eculizumab, or other immunosuppressants
  • MOGAD (MOG-IgG Positive): Corticosteroids, IVIG, and immunosuppressants
  • MS: Disease-modifying therapies like interferons, fingolimod, or natalizumab

Original price was: ₹8,500.00.Current price is: ₹7,499.00.

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