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Glutamate Receptor 1 (mGluR1) Antibody, Serum/Plasma

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

This test measures antibodies against glutamate receptor 1, a protein involved in brain signaling. It may help diagnose autoimmune neurological conditions.

Quick summary

["This test checks for rare antibodies linked to certain brain disorders."]

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

Key facts at a glance

LOINC
93500-7
Short code
mGluR1 IgG CSF Ql CBA IFA
Synonyms
mGluR1 IgG CSF Ql CBA IFA
Category
coagulation
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
cba-ifa
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects the presence of antibodies targeting glutamate receptor 1 (mGluR1), a protein found in the brain. These antibodies can interfere with normal brain function, potentially contributing to autoimmune neurological diseases like epilepsy, movement disorders, or other neurological symptoms.

Why It Might Be Ordered

Your doctor may recommend this test if you have unexplained neurological symptoms such as seizures, muscle spasms, or movement disorders. It’s particularly useful in cases where other tests haven’t provided a clear diagnosis.

How the Test Works

A small blood sample is drawn, and the serum or plasma is tested for mGluR1 antibodies using immunoassay techniques. This helps identify if your immune system is mistakenly attacking this protein in the brain.

What to Expect Before the Test

No special preparation is needed. You may have a slight bruise or soreness at the needle site, but this usually fades quickly. Avoid alcohol or strenuous activity before the blood draw if advised by your doctor.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

mGluR1 Antibody

Frequently asked questions

What does a positive result mean?
A positive result indicates the presence of mGluR1 antibodies in your blood. This may suggest an autoimmune process affecting brain function, but additional testing and medical evaluation are required to understand the full impact and guide treatment.
Can lifestyle changes help if this test is positive?
While lifestyle changes like a balanced diet, stress management, and avoiding triggers (such as certain medications) may support overall health, they won’t directly address the autoimmune response detected by this test. Work closely with your healthcare provider for personalized guidance.
How long will it take to get results?
Results are typically available within 3 to 5 business days, depending on lab processing times. Your doctor will discuss the findings with you during your follow-up appointment.
  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