期刊
JOURNAL OF TRANSLATIONAL MEDICINE
卷 9, 期 -, 页码 -出版社
BIOMED CENTRAL LTD
DOI: 10.1186/1479-5876-9-58
关键词
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资金
- Spanish Ministry of Science and Innovation [CIT-090100-2007-42, PI081472]
- Instituto de Salud Carlos III [RETICS-RD06/0026]
- Xunta de Galicia (Conselleria de Innovacion, Industria e Comercio) [PGIDIT06PXIB918316PR]
- Conselleria de Educacion e Ordenacion Universitaria: Axudas para a Consolidacion e Estruturacion de Unidades de Investigacion Competitivas
- MRC [G0901786] Funding Source: UKRI
- Medical Research Council [G0901786] Funding Source: researchfish
Background: Neuroserpin has shown neuroprotective effects in animal models of cerebral ischemia and has been associated with functional outcome after ischemic stroke. Our aim was to study whether neuroserpin serum levels could be associated to biomarkers of excitotoxicity, inflammation and blood brain barrier disruption. Methods: We prospectively included 129 patients with ischemic stroke (58.1% male; mean age, 72.4 +/- 9.6 years) not treated with tPA within 12 hours (h) of symptoms onset (mean time, 4.7 +/- 2.1 h). Poor functional outcome at 3 months was considered as a modified Rankin scale score >2. Serum levels of neuroserpin, Interleukin 6 (IL-6), Intercellular adhesion molecule-1 (ICAM-1), active Matrix metalloproteinase 9 (MMP-9), and cellular fibronectin (cFn) (determined by ELISA) and glutamate (determined by HPLC) were measured on admission, 24 and 72 h. The main variable was considered the decrease of neuroserpin levels within the first 24 h. ROC analysis was used to select the best predictive value for neuroserpin to predict poor functional outcome due to a lack of linearity. Results: The decrease of neuroserpin levels within the first 24 h was negatively correlated with serum levels at 24 hours of glutamate (r = -0.642), IL-6 (r = -0.678), ICAM-1 (r = -0.345), MMP-9 (r = -0.554) and cFn (r = -0.703) (all P <0.0001). In the multivariate analysis, serum levels of glutamate (OR, 1.04; CI95%, 1.01-1.06, p = 0.001); IL-6 (OR, 1.4; CI95%, 1.1-1.7, p = 0.001); and cFn (OR, 1.3; CI95%, 1.1-1.6, p = 0.002) were independently associated with a decrease of neuroserpin levels <70 ng/mL at 24 h after adjusting for confounding factors. Conclusions: These findings suggest that neuroprotective properties of neuroserpin may be related to the inhibition of excitotoxicity, inflammation, as well as blood brain barrier disruption that occur after acute ischemic stroke.
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