Anti-MOG (Myelin Oligodendrocyte Glycoprotein) Antibody CSF Test
About Anti-MOG (Myelin Oligodendrocyte Glycoprotein) Antibody CSF Test
| Field | Value |
|---|---|
| Also Known As | MOG-IgG CSF Test, MOG Antibody CSF Test, Anti-Myelin Oligodendrocyte Glycoprotein Antibody CSF, MOG-Ab CSF Test |
| Sample Type | Cerebrospinal fluid (CSF) — the clear fluid that surrounds the brain and spinal cord |
| Fasting Required | No |
| Report Time | 3 to 7 business days; can vary as per the diagnostic clinic |
| Recommended For | Adults and children of any gender with suspected inflammatory demyelinating diseases of the central nervous system |
| Price | Starting at ₹6,500 |
What Is an Anti-MOG Antibody CSF Test?
The Anti-MOG antibody CSF test detects a specific antibody — MOG-IgG — in the cerebrospinal fluid (CSF). This antibody targets myelin oligodendrocyte glycoprotein, a protein found on the protective covering of nerve fibres in the brain and spinal cord.
Doctors order this specialised cerebrospinal fluid test when they suspect an inflammatory nerve condition that standard tests have not confirmed. The sample is collected from the CSF via a procedure called a lumbar puncture.
What Does an Anti-MOG Antibody CSF Test Measure?
The test looks for one specific marker in the CSF. Below is what it analyses and why it matters.
| Parameter | What It Detects | Why It Matters |
|---|---|---|
| MOG-IgG (CSF) | Immunoglobulin G antibodies against myelin oligodendrocyte glycoprotein | Confirms or supports a diagnosis of MOG antibody-associated disease (MOGAD) |
The laboratory uses a method called a cell-based assay (CBA). This technique exposes cells carrying the human MOG protein to the CSF sample, allowing accurate detection of the antibody in its natural form.
Why Is an Anti-MOG Antibody CSF Test Done?
This test is ordered when a neurologist suspects a condition affecting the brain or spinal cord that may be driven by the immune system attacking myelin.
Common Symptoms That May Require This Test
A doctor may recommend the MOG antibody CSF test if you experience any of the following symptoms:
- Blurred or double vision, or sudden vision loss
- Muscle weakness in the arms or legs
- Stiff muscles (spasticity)
- Loss of balance and coordination
- Sharp, shooting pain or tingling in the neck, back, or abdomen
- Difficulty controlling the bladder or bowels
- Trouble fully emptying the bladder
Conditions This Test Can Help Detect
The Anti-MOG antibody CSF test can help identify or rule out several serious neurological conditions:
- MOG antibody-associated disease (MOGAD), including optic neuritis (inflammation of the optic nerve), myelitis (spinal cord inflammation), and acute disseminated encephalomyelitis (ADEM — widespread brain inflammation)
- Differentiation from Neuromyelitis optica spectrum disorder (NMOSD) and classic Multiple Sclerosis (MS)
- Cerebral cortical encephalitis and brainstem or cerebellar deficits
Anti-MOG Antibody CSF Test for Chronic Disease Monitoring
The MOG-IgG CSF test is not a one-time investigation for many patients. If MOG-IgG antibodies remain detectable over time, this may predict a relapsing course of disease, with studies suggesting roughly 40% to 50% of MOGAD patients experience relapses. Falling antibody levels, on the other hand, may reflect a positive response to treatment. Follow-up testing is generally recommended every 6 to 12 months, guided by your neurologist.
How to Prepare and What to Expect
Because this test requires a lumbar puncture, preparation is slightly different from a routine blood test. Here is what you need to know before the procedure.
Do You Need to Fast?
No fasting is required before this test. You may eat and drink normally on the day of the procedure.
Practical Tips Before Your Test
Keep the following points in mind before attending your appointment:
- Tell your doctor about all medications you take, especially blood thinners such as aspirin, immunosuppressants, or steroids, as these can affect both the procedure and the test result
- Arrange for someone to accompany you, as you will need to rest for several hours after the procedure
- Wear comfortable, loose clothing that is easy to remove or adjust
Step-by-Step Procedure
The CSF collection follows a structured process carried out by a trained healthcare professional:
- You will be asked to lie on your side or sit upright and curl forward to open up the spaces between your lower vertebrae.
- The doctor cleans the lower back area and applies a local anaesthetic to numb the skin.
- A thin hollow needle is inserted carefully between the 3rd and 4th lumbar vertebrae (bones in the lower spine) into the fluid-filled space around the spinal cord.
- A small sample of CSF is drawn into vials. The whole procedure usually takes about 30 minutes.
- The needle is removed, the area is cleaned, and a small bandage is applied.
- The CSF sample is sent to the laboratory, where it is tested using a cell-based assay to detect MOG-IgG antibodies.
Factors That Can Affect Accuracy
Several factors may influence the reliability of the Anti-MOG myelin oligodendrocyte glycoprotein CSF result:
- Receiving immunotherapy (steroids or plasma exchange) before sample collection, which may lower antibody levels
- The timing of the sample collection relative to an acute episode
- How the sample is handled and stored after collection
- The specific laboratory method used (live versus fixed cell-based assay)
Understanding Your Anti-MOG Antibody CSF Test Results
Results from this test require careful interpretation by a qualified neurologist. The table below shows the reference range for the test parameter.
| Parameter | Normal Result | Positive Result |
|---|---|---|
| MOG-IgG (CSF) | Less than 1:1 (< 1:1) / Negative | 1:1 or greater (≥ 1:1)/Detected |
A negative result means no anti-MOG antibodies were found in your spinal fluid sample. However, because these antibodies are primarily produced in the blood, a negative spinal fluid result does not completely rule out a demyelinating disease. A serum (blood) test is significantly more sensitive and remains the first choice for diagnosis.
A positive result means anti-MOG antibodies were successfully detected in your spinal fluid. While a positive result strongly supports a diagnosis of MOGAD, your neurologist will always interpret this finding alongside your current physical symptoms, clinical examination, and MRI imaging scans to confirm the condition.
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
The MOG-IgG CSF test has some important limitations worth noting. In a national referral setting, CSF-restricted MOG-IgG showed low sensitivity compared to serum testing, meaning the blood-based test picks up more cases. CSF testing is most useful when serum results are negative but clinical suspicion remains high, or when a serum result is borderline and further certainty is needed.
Administration of steroids or immunotherapy before testing can reduce antibody levels and may lead to a falsely negative result.
How to Maintain Healthy Levels
While there is no lifestyle habit that directly prevents autoimmune nerve conditions, the following steps support overall neurological wellbeing:
- Keep all follow-up appointments with your neurologist to monitor disease activity over time
- Report any new or worsening neurological symptoms to your doctor promptly
- Follow your doctor's guidance on medication and monitoring schedules
Lupin Diagnostics Anti-MOG Antibody CSF Test Price
This test requires a visit to a Lupin Diagnostics centre. Home sample collection is not available, as the CSF sample must be obtained via a lumbar puncture performed by a trained healthcare professional in a clinical setting.
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹7,000 |
| Goa | ₹6,500 |
| Chennai | ₹6,500 |
| Indore | ₹6,500 |
| Bhopal | ₹6,500 |
| Bangalore | ₹6,500 |
| Nagpur | ₹6,500 |
| Hyderabad | ₹6,500 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website
- Choose your city and preferred centre location
- Visit the centre at your scheduled time for sample collection by a trained healthcare professional
- Receive your report via email or WhatsApp within the stipulated turnaround time
Frequently Asked Questions
Serum (blood) testing is generally more sensitive for detecting MOG antibodies than CSF testing. The MOG antibody CSF test is typically used when the serum result is negative but the doctor still suspects a MOG-related condition, or when a borderline serum result needs further clarification. Your neurologist will advise which test — or combination of tests — is appropriate for you.
The cerebrospinal fluid test requires a sample of the fluid surrounding the brain and spinal cord. This fluid cannot be obtained from a blood draw. A lumbar puncture (also called a spinal tap) is the standard, well-established method for collecting this sample safely.
No. Because this test requires a lumbar puncture, it must be performed by a trained doctor or healthcare provider in a clinical or hospital setting. Home collection is not possible for the Anti-MOG antibody CSF test.
Results are generally reported as either negative (antibodies not detected) or positive (antibodies detected). The report may also mention the level or strength of antibody detection, depending on the testing method used. Your doctor interprets the result along with your symptoms, MRI findings, and other clinical investigations.
Yes, a negative MOG-IgG CSF test does not completely exclude MOGAD. Serum testing is the preferred first specimen because it is more sensitive. If your CSF result is negative but symptoms persist, your doctor may recommend serum testing or other investigations to reach a diagnosis.
Yes, this is one of the key uses of the Anti-MOG myelin oligodendrocyte glycoprotein CSF test. MOG-IgG antibodies are not associated with multiple sclerosis in adults, which means a positive result points away from MS and towards MOGAD or a related condition. An accurate distinction between these conditions matters because their management differs.
Follow-up testing is generally recommended every 6 to 12 months for patients with confirmed MOGAD, as persistent antibody positivity is linked to a higher risk of relapse. Your neurologist will determine the appropriate monitoring interval based on your clinical situation and antibody levels over time.
Anti-MOG (Myelin Oligodendrocyte Glycoprotein) Antibody CSF Test
