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Anti-Ganglioside Antibody Profile (Ganglioside Antibody Panel)

Published: August 9, 2026Updated: August 16, 2026

This test measures antibodies against specific gangliosides, which are complex sugars found on cell surfaces. These antibodies may be linked to certain neurological conditions.

Quick summary

["This test helps identify potential autoimmune responses affecting nerve function."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
89515-1
Short code
GT1b Ganlg IgM Ser Ql Line blot
Synonyms
GT1b Ganlg IgM Ser Ql Line blot
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
line-blot
CPT
82784
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is Measured in This Test?

The panel detects antibodies targeting different ganglioside molecules (e.g., GM1, GD1a, GT1b). These molecules are critical for nerve cell communication, and their antibodies may indicate an immune system response that could disrupt normal nerve signaling.

Why Might This Test Be Ordered?

Your healthcare provider may recommend this test if you have symptoms like vision changes, muscle weakness, or nerve-related issues (e.g., diabetic neuropathy, Guillain-Barré syndrome, or multiple sclerosis). It helps assess whether antibodies against gangliosides are contributing to your condition.

How Is the Sample Collected?

A blood sample is drawn from a vein, typically in your arm. The blood is processed to separate serum or plasma for testing.

What Does a Positive Result Mean?

A positive result suggests the presence of ganglioside antibodies, which may support a diagnosis of an autoimmune or inflammatory neurological disorder. However, results alone do not confirm a diagnosis; they are used alongside clinical findings and other tests.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Ganglioside Antibodies and Neurological Conditions

Short name

Ganglioside Antibody Panel

Frequently asked questions

How Long Does It Take to Get Results?
Results are usually available within 3 to 7 business days, depending on lab processing times and confirmatory follow-up steps.
What Are Common Causes of False Positives?
False positives may occur due to laboratory error, cross-reactivity with other substances, or pre-existing immune responses unrelated to ganglioside antibodies. Your provider will discuss results in context with your medical history.
Can This Test Be Used to Monitor Treatment?
Yes, monitoring antibody levels over time can help track the progression or response to treatment for certain neurological conditions, though interpretation requires clinical correlation.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy