ApoC-I and ApoC-III as potential plasmatic markers to distinguish between ischemic and hemorrhagic stroke
| Autor: | Kit-Yi Leung, Nadia Walter, Pierre Lescuyer, Denis F. Hochstrasser, Garry L. Corthals, Pierre Burkhard, Malcolm Ward, Jean-Charles Sanchez, Jennifer A. Burgess, Laure Allard |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Male medicine.medical_specialty Apoc iii Apolipoprotein B Protein Array Analysis Analytical chemistry Biochemistry Gastroenterology Mass Spectrometry Brain Ischemia Silver stain Brain Ischemia/blood/diagnosis Neurological assessment Internal medicine medicine Humans Serum amyloid A ddc:576 Apolipoproteins C Molecular Biology Stroke Mass Spectrometry/methods Aged Cerebral Hemorrhage Aged 80 and over Apolipoprotein C-I Apolipoprotein C-III biology Chemistry Gene Expression Profiling Cerebral Hemorrhage/blood/diagnosis Middle Aged medicine.disease biology.protein Biological Markers Female lipids (amino acids peptides and proteins) Risk of death Apolipoprotein CIII Biomarkers Apolipoproteins C/blood/chemistry |
| Zdroj: | Proteomics, Vol. 4, No 8 (2004) pp. 2242-51 |
| ISSN: | 1615-9861 1615-9853 |
| DOI: | 10.1002/pmic.200300809 |
| Popis: | Early diagnosis and immediate therapeutic interventions are crucial factors to reduce the damage extent and the risk of death. Currently, the diagnosis of stroke relies on neurological assessment of the patient and neuro-imaging techniques including computed tomography and/or magnetic resonance imaging scan. An early diagnostic marker of stroke, ideally capable to discriminate ischemic from hemorrhagic stroke would considerably improve patient acute management. Using surface-enhanced laser desorption/ionization (SELDI) technology, we aimed at finding new early diagnostic plasmatic markers of stroke. Strong anionic exchange (SAX) SELDI profiles of plasma samples from 21 stroke patients were compared to 21 samples from healthy controls. Seven peaks appeared to be differentially expressed with significant p values (p < 0.05). Proteins were stripped from the SAX chips, separated on a one-dimensional electrophoresis (1-DE) gel and stained using mass spectrometry (MS)-compatible silver staining. Following in-gel tryptic digestion, the peptides were analyzed by MS. Four candidate proteins were identified as apolipoprotein CI (ApoC-I), apolipoprotein CIII (ApoC-III), serum amyloid A (SAA), and antithrombin-III fragment (AT-III fragment). Assessment of ApoC-I and ApoC-III levels in plasma samples using a sandwich enzyme-linked immunosorbent assay (ELISA) allowed to distinguish between hemorrhagic (n = 15) and ischemic (n = 16) stroke (p < 0.001). To the best of our knowledge, ApoC-I and ApoC-III are the first reported plasmatic biomarkers capable to accurately distinguish between ischemic and hemorrhagic stroke in a small number of patients. It requires further investigation in a large cohort of patients. |
| Databáze: | OpenAIRE |
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