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首页> 外文期刊>Thrombosis Research: An International Journal on Vascular Obstruction, Hemorrhage and Hemostasis >Platelet glycoprotein Ia gene dimorphism alpha2-807 in malignant arrhythmia in coronary artery disease.
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Platelet glycoprotein Ia gene dimorphism alpha2-807 in malignant arrhythmia in coronary artery disease.

机译:冠状动脉疾病的恶性心律失常中血小板糖蛋白Ia基因二态性α2-807。

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摘要

It has been shown recently that the variable expression of the platelet collagen receptor integrin alpha2beta1 predisposes to thrombotic risk on the one hand and hemorrhagic risk on the other hand. The level of expression of the integrin alpha2beta1 is genetically controlled and associated with the alpha2-807 dimorphism. The expression level of this platelet collagen receptor may play a central role in the rapidly evolving coronary artery lesions that lead to malignant arrhythmia and sudden cardiac death. We studied allelic frequencies of the alpha2-807 dimorphism for their relation as a risk factor for malignant arrhythmia in a well-defined subgroup of patients with coronary artery disease. We compared allelic frequencies (by sequence specific primer polymerase chain reaction) of the dimorphism that is associated with integrin alpha2beta1 levels in 94 Caucasoid survivors of sudden cardiac death with a matched group of 106 patients with coronary artery disease without sudden cardiac death. Gene frequencies in the patient groups did not differ and were similar to those in the general population represented by 217 healthy individuals. There was no overrepresentation of an allele in any group. The inherited dimorphism that is associated with the levels of platelet integrin alpha2beta1 is not associated with malignant arrhythmia in coronary artery disease patients.
机译:最近显示,血小板胶原蛋白受体整联蛋白α2β1的可变表达一方面倾向于血栓形成风险,另一方面具有出血风险。整联蛋白alpha2beta1的表达水平受到遗传控制,并与alpha2-807二态性相关。该血小板胶原蛋白受体的表达水平在迅速发展的冠状动脉病变中可能起着核心作用,从而导致恶性心律不齐和心源性猝死。我们研究了α2-807双态等位基因频率与它们之间的关系,将其作为冠状动脉疾病患者分组明确的恶性心律失常的危险因素。我们比较了94名心源性猝死的高加索幸存者与106例无心源性猝死的冠状动脉疾病患者的匹配组中与整联蛋白alpha2beta1水平相关的双态性的等位基因频率(通过序列特异性引物聚合酶链反应)。患者组中的基因频率没有差异,与217个健康个体所代表的普通人群的基因频率相似。在任何组别中都没有等位基因的过多代表。与血小板整合素α2β1水平相关的遗传二态性与冠心病患者的恶性心律失常无关。

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