雷贝拉唑对大鼠体内氯吡格雷抗血小板聚集作用和代谢的影响研究
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篇名: 雷贝拉唑对大鼠体内氯吡格雷抗血小板聚集作用和代谢的影响研究
TITLE:
摘要: 目的:研究雷贝拉唑(RPZ)对大鼠体内氯吡格雷(CLP)抗血小板聚集作用和代谢的影响。方法:将40只SD大鼠随机分为空白对照组、RPZ组、CLP组、RPZ+CLP组、CLP+RPZ组,每组8只,CLP和RPZ 的给药剂量分别为6.75、0.9 mg/kg,两药给药间隔2 h,连续给药14 d。检测各组大鼠血小板聚集率(MPA)、血小板活化指数(PRI)、胃黏膜损伤评分以及血药浓度[氯吡格雷羧酸(CA)及CLP活性巯基代谢物衍生物(AM)],并采用Pearson相关性分析法分析MPA和PRI分别与CA、AM的关系。结果:与空白对照组比较,CLP组、RPZ+CLP组和CLP+RPZ组大鼠的MPA、PRI均明显降低(P<0.05),胃黏膜损伤评分均明显增加(P<0.05),而RPZ组大鼠的MPA、PRI和胃黏膜损伤评分均无明显变化(P>0.05)。与CLP组比较,RPZ+CLP组和CLP+RPZ组大鼠的MPA、PRI均明显升高(P<0.05),胃黏膜损伤评分均明显减小(P<0.05),AM血药浓度明显降低(P<0.05),而3组大鼠的CA血药浓度无明显变化(P>0.05)。MPA和PRI均与AM呈负相关性(r=-0.689、-0.765,P<0.05),而与CA均未见明显的相关性(r=-0.117、0.048,P>0.05)。结论:RPZ对CLP的抗血小板作用、致胃黏膜损伤有一定的抑制作用,两药的给药顺序不影响CLP的代谢。
ABSTRACT: OBJECTIVE: To study the effects of rabeprazole (RPZ) on in vivo anti-platelet aggregation and metabolism of clopidogrel in rats. METHODS: Totally 40 SD rats were randomly divided into blank control group, RPZ group, CLP group, RPZ+CLP group and CLP+RPZ group, with 8 rats in each group. The dose of CLP and RPZ were 6.75 and 0.9 mg/kg, with medication interval of 2 h, for consecutive 14 d. The maximal platelet aggregation (MPA), platelet reaction index (PRI), gastric mucosal injury score and blood concentration [carboxylic acid of clopidogrel (CA) and active metabolite of clopidogrel (AM) were detected. The relationship of MPA and PRI with CA and AM were analyzed by Pearson relation analysis. RESULTS: Compared with blank control group, MPA and PRI of rats were decreased significantly in CLP group, RPZ+CLP group and CLP+RPZ group (P<0.05). Gastric mucosal injury score was increased significantly (P<0.05), while MPA, PRI and gastric mucosal injury score had no significant change in RPZ group (P>0.05). Compared with CLP group, MPA and PRI were increased significantly in RPZ+CLP group and CLP+RPZ group (P<0.05); gastric mucosal injury score was decreased significantly (P<0.05) and blood concentration of AM was also decreased significantly (P<0.05). Blood concentration of CA in 3 groups had no significant change (P>0.05). MPA and PRI were both negatively related with AM (r=-0.689, -0.765,P<0.05), while they had no significant correlation with CA (r=-0.117, 0.048, P>0.05). CONCLUSIONS: RPZ can inhibit the antiplatelet effect of CLP and CLP-induced gastric mucosal injury, and medication order of two drugs doesn’t influence CLP metabolism.
期刊: 2018年第29卷第17期
作者: 蔡薇薇
AUTHORS: CAI Weiwei
关键字: 氯吡格雷;雷贝拉唑;抗血小板聚集;代谢;相互作用;大鼠
KEYWORDS: Clopidogrel; Rabeprazole; Anti-platelet aggregation; Metabolism; Drug-drug interaction; Rat
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