JAHA:地高辛通过影响血小板激活水平影响房颤患者预后

2018-11-16 MedSci MedSci原创

地高辛的使用与房颤患者不良心血管事件的发生相关,本研究提出假设,地高辛可以通过血小板的激活影响心血管风险。本研究是房颤抗凝患者前瞻性研究的事后分析,将患者分成地高辛使用组(n=132)和非地高辛使用组(n=388),并对其测定了血小板活化标志物血栓烷B2(TxB2)的尿排泄量和血清地高辛浓度(SDC)。本研究也同时进行了体外实验,将对照和房颤患者的血小板体外培养,并用标准剂量的地高辛进行孵育(0.

地高辛的使用与房颤患者不良血管事件的发生相关,本研究提出假设,地高辛可以通过血小板的激活影响血管风险。

本研究是房颤抗凝患者前瞻性研究的事后分析,将患者分成地高辛使用组(n=132)和非地高辛使用组(n=388),并对其测定了血小板活化标志物血栓烷B2(TxB2)的尿排泄量和血清地高辛浓度(SDC)。本研究也同时进行了体外实验,将对照和房颤患者的血小板体外培养,并用标准剂量的地高辛进行孵育(0.6–2.4 ng/mL)。分析结果显示,尿的11脱氢TxB2和SDC呈相关性(rs=0.350, P<0.001),与非地高辛使用者相比,高水平SDC的患者尿11脱氢TxB2水平也更高(P=0.019)。体外实验结果显示,房颤患者的基础血小板激活水平高于对照。地高辛会引起房颤患者的钙动员、PAC 1(前处理酶激活化合物1)和血小板聚集,而对对照无明显影响。

本研究结果显示,体内的血清地高辛水平与血小板激活水平呈明显相关性。

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    2018-11-18 zhaohui6731
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