کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5827809 | 1558934 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of CYP2C19 polymorphisms on platelet reactivity and clinical outcomes in ischemic stroke patients treated with clopidogrel
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کلمات کلیدی
LOFMRSCYP2C19HRPRHigh residual platelet reactivityResidual platelet reactivityRPRAdenosine diphosphate (PubChem CID: 6022)Loss-of-function - از دست دادن عملکردPlatelet function tests - تست عملکرد تیروئیدIschemic stroke - سکته مغزی ایسکمیکFlow cytometry - فلوسیتومتریGenetic polymorphism - پلیمورفیسم ژنتیکیclopidogrel - کلوپیدوگرل
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
CYP2C19 genetic polymorphisms influence clopidogrel response and clinical outcomes of cardiovascular disease. However, data on their relationship in stroke patients are scarce. We aimed to investigate the influence of CYP2C19 polymorphisms on platelet reactivity and clinical outcomes in ischemic stroke patients treated with clopidogrel. A total of 211 patients were enrolled. All patients were given clopidogrel treatment and underwent CYP2C19 genotyping and platelet function testing by flow cytometry including adenosine diphosphate-induced platelet aggregation (ADP-PAg) and platelet activation markers (PAC-1, CD62P and CD63). The modified Rankin Scale (mRS) was used and ischemic events were evaluated. A total of 129 (61.1%) of the 211 enrolled patients were carriers of CYP2C19 loss-of-function (LOF) alleles (â2, â3). After clopidogrel therapy for 7 days, the levels of ADP-PAg, PAC-1, CD62P and CD63 were higher in carriers than noncarriers. CYP2C19 carriage was associated with more frequent high residual platelet reactivity. CYP2C19 polymorphisms alone could explain 12.9%, 4.3%, 8.9% and 5.5% of the inter-individual variability of ADP-PAg, PAC-1, CD62P and CD63 after clopidogrel treatment, respectively. At 6-month follow-up, 38 (19%) patients were scored poor prognosis and 15 (7.6%) ischemic events were observed. Carriers had poorer prognosis than noncarriers (P=0.025). No significant association of CYP2C19 carriage with ischemic events was found. Multiple regression analysis showed that CYP2C19 carriage was an independent predictor of poor prognosis (odds ratio, 3.01; 95% confidence interval, 1.23-7.38; P=0.016). In conclusion, carriage of the CYP2C19 LOF allele has significant influence on clopidogrel response and prognosis in patients with ischemic stroke.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmacology - Volume 747, 15 January 2015, Pages 29-35
Journal: European Journal of Pharmacology - Volume 747, 15 January 2015, Pages 29-35
نویسندگان
Li-Na Qiu, Yan Sun, Lin Wang, Rui-Fa Han, Xiao-Shuang Xia, Jie Liu, Xin Li,