Role of Glial Fibrillary Acidic protein as a biomarker in differentiating intracerebral hemorrhage from ischemic stroke and stroke mimics: A meta-analysis.

07:00 EST 8th November 2019 | BioPortfolio

Summary of "Role of Glial Fibrillary Acidic protein as a biomarker in differentiating intracerebral hemorrhage from ischemic stroke and stroke mimics: A meta-analysis."

: Studies have suggested promising evidence that glial fibrillary acidic protein (GFAP) could be used as a blood biomarker to distinguish between ischemic stroke (IS) and intracerebral hemorrhage (ICH) in acute stage.: To determine the available evidence for GFAP as a blood biomarker for differentiating ICH from IS and stroke mimics using a meta-analysis approach.: Search terms were used for literature search: ("STROKE" [Mesh] OR "BIOMARKER" [Title/Abstract] OR "GFAP" [Title/Abstract])] OR "SPECIFICITY" OR "SENSTIVITY" at various search engines like PubMed, Google scholar, Trip database, for articles from 1990 through April 2019 using filter 'human subjects'. Data were analysed using software STATA version 13.: A pooled analysis including 12 studies suggested that GFAP if used as a biomarker to differentiate between different types of strokes (ICH from IS and mimics) had a sensitivity of 78% (95%
67% to 86%) and a specificity of 95% (95%
88% to 98%). Positive likelihood ratio (LR) was 14.4 and negative LR was 0.23. SROC with prediction and confidence contours suggests promising area under the curve 0.93, 95% CI ranges from 0.90 to 0.95. Diagnostic odds ratio with 95% CI was observed 63 (31 to 125).: Our meta-analysis suggests that GFAP has a promising diagnostic accuracy for the differentiation of ICH from IS and mimics. Further, phase II and phase III diagnostic test studies are required to validate the findings before using GFAP as a blood based biomarker for clinical use. This study was registered in OSF registries 10.17605/OSF.IO/B9JP4.


Journal Details

This article was published in the following journal.

Name: Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals
ISSN: 1366-5804
Pages: 1-20


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Medical and Biotech [MESH] Definitions

An intermediate filament protein found only in glial cells or cells of glial origin. MW 51,000.

A rare inherited disorder of myelin formation. Alexander disease is a progressive leukoencephalopathy whose hallmark is the widespread accumulation of cytoplasmic inclusions called Rosenthal fibers. The fibers contain GLIAL FIBRILLARY ACIDIC PROTEIN in association with ALPHA-CRYSTALLIN B CHAIN. Rosenthal fibers are found predominantly in ASTROCYTES located in the subependymal, subpial, and periventricular areas of the BRAIN.

Filaments 7-11 nm in diameter found in the cytoplasm of all cells. Many specific proteins belong to this group, e.g., desmin, vimentin, prekeratin, decamin, skeletin, neurofilin, neurofilament protein, and glial fibrillary acid protein.

A calcium-binding protein that is 92 AA long, contains 2 EF-hand domains, and is concentrated mainly in GLIAL CELLS. Elevation of S100B levels in brain tissue correlates with a role in neurological disorders.

A family of GLYCOSYLPHOSPHATIDYLINOSITOL-anchored cell surface receptors that are specific for GLIAL CELL LINE-DERIVED NEUROTROPHIC FACTORS. They form a multi-component receptor complex with PROTO-ONCOGENE PROTEIN C-RET and regulate a variety of intracellular SIGNAL TRANSDUCTION PATHWAYS in conjunction with c-ret protein.

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