Promoter hypomethylation of microRNA223 gene is associated with atherosclerotic cerebral infarction.

Background And Aims: microRNA223 (miR-223) plays an important role in the development of atherosclerosis and ischemic stroke. It is involved in regulation of multiple physiological and pathophysiological processes such as cholesterol metabolism, endothelial cell (EC) function, and thrombosis. Here we investigated the role of methylation regulation of MIR-223 promoter region in atherosclerotic cerebral infarction (ACI) patients.

Correlation of Plasma Vascular Endothelial Growth Factor and Endostatin Levels with Symptomatic Intra- and Extracranial Atherosclerotic Stenosis in a Chinese Han Population.

Background: Symptomatic intracranial atherosclerotic stenosis (ICAS) and extracranial atherosclerotic stenosis (ECAS) are different in many aspects. Here, we explored the association between the location or severity of atherosclerotic stenosis and pro- or antiangiogenic factors, specifically vascular endothelial growth factor (VEGF) and endostatin (ES).

Methods: We evaluated 198 consecutive patients with acute ischemia stroke: 132 with large-artery atherosclerosis (LAA) and 66 with small-artery occlusion (small-vessel occlusion).

Detection of platelet microRNA expression in patients with diabetes mellitus with or without ischemic stroke.

Aims: The objective of this study was to investigate the role of plasma and platelet microRNAs in the occurrence of ischemic stroke in patients with diabetes mellitus.

Methods: miR-223, miR-146a, miR-495, and miR-107 expression in the plasma and platelets, blood glucose concentration, and platelet activation rate were measured in patients with diabetes mellitus and ischemic stroke, diabetes mellitus only, ischemic stroke only, and healthy controls. Platelet activity was measured by flow cytometric measurement of P-selectin expression, while miRNA was measured by real-time PCR.

Association of BSG genetic polymorphisms with atherosclerotic cerebral infarction in the Han Chinese population.

The Basigin (BSG, also known as CD147/extracellular matrix metalloproteinase inducer) belongs to the immunoglobulin superfamily (IgSF). It is a cellular receptor for cyclophilin A (CypA), and is originally known as tumor cell collagenase stimulatory factor (TCSF), which could abundantly expressed on the surface of tumor cells, haematopoietic, monocytes, epithelial endothelial cells and smooth muscle cells. Accumulating evidence showed that BSG played an important role in stimulating the secretion of matrix metalloproteinases (MMPs), which has been reported to be involved in the development of atherosclerosis.

A functional polymorphism at miR-491-5p binding site in the 3'-UTR of MMP-9 gene confers increased risk for atherosclerotic cerebral infarction in a Chinese population.

Background: and purpose: Matrix metalloproteinases 9 (MMP-9) has been reported to play a critical role in the pathophysiology of atherosclerotic cerebral infarction (ACI). Here we assessed association of MMP-9 polymorphisms with ACI susceptibility and the function of SNPs through microRNA mediated regulation.

Methods: Genotyping was performed using MALDI-TOF mass spectrometry.