Glial Fibrillary Acidic Protein (GFAP), Plasma Blood Test
Compare labs
| Feature |
Labcorp
|
Quest Diagnostics
|
|---|---|---|
| Price | Coming soon | $345.99 |
| Results in | — | ~5 business days |
| Sample type | — | Blood Plasma |
| Require fasting | — | No |
About the test
Glial fibrillary acidic protein (GFAP) is a protein expressed in astrocytes, cells that support neurons and help form the blood-brain barrier, found within the central nervous system (CNS), and is involved in several important CNS processes. It is a marker of astrogliosis and is upregulated in the brain as a result of attempts at repair and the formation of a glial scar. Glial scarring occurs as a result of several neurodegenerative processes, including Alzheimer's disease, multiple sclerosis, and neuromyelitis optica. It can also be seen after damaging pathological events such as traumatic brain injury and stroke [1]. Increased presence of GFAP can also be observed in association with brain tumors such as glioblastoma multiforme [2]. GFAP expression is known to decrease in disorders such as schizophrenia, bipolar disorder, and depression [3].
- Nature Reviews Neurology 18(3):158-172.
- J Neuro Sci 35 (1):147-155.
- Molecular Psychiatry 5(2):142-149.
Included biomarkers & Reference ranges
| Biomarker | Reference range |
|---|---|
| Glial Fibrillary Acidic Protein (GFAP) A protein released by brain support cells (astrocytes) when they're injured. Studied as a marker of brain injury and certain neurological conditions. | — |
Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.
Preparation
- Stop biotin consumption at least 72 hours before sample collection.
How it works
- 1. Order online No referral or insurance
- 2. Get a requisition By email in 24–72 hours
- 3. Visit a draw center Bring a matching photo ID
- 4. Get results Securely by email
- These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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