Eur Heart J:端粒长度对急性心肌梗死预后的预测价值!

2017-04-25 xing.T MedSci原创

BTL可以预测AMI后心血管事件,独立于年龄,而VTL是一种组织特异性(而不是整体)的血管氧化应激标志物。BTL和VTL之间缺乏强大的相关性表明全身和血管因素在确定AMI后临床结局的重要性。

实验证据表明端粒长度(TL)可以被氧化DNA损伤所缩短,反映了生物老化。近日,心血管领域权威杂志Eur Heart J上发表了一篇研究文章,研究人员旨在探讨血液中(BTL)和血管中TL(VTL)作为全身/血管在人体氧化应激指标的价值,并验证BTL在急性心肌梗死(AMI)中的临床预测价值。

在290例最近急性心肌梗死存活患者组成的前瞻性队列中,入院时测得的BTL是全因死亡[风险比(HR)[95%可信区间(CI)]:3.21[1.46-7.06],P=0.004]和心血管死亡(HR 95% [CI]:3.96[1.65-9.53],P=0.002)的主要预测因子,在AMI后1年(将短期 vs. 长期BTL进行比较,其定义为T/S比值临界值为0.916,通过ROC分析进行计算,以及调整了年龄和其他因素的P值)。

为了探讨这些结果的生物学意义,研究人员将连续就诊的727例进行冠状动脉旁路移植术(CABG)患者量化BTL,并且测量外周血单个核细胞(MNC)中的超氧阴离子(O2-)。研究人员测量了大隐静脉(SV)和乳内动脉(IMA)节段的VTL/血管O2-。患者对p22phoX(激活NADPH氧化酶)功能基因多态性进行基因型分型,并且通过基因型选择的血管平滑肌细胞(VSMC)是从血管组织中培养。在外周血单个核细胞中短的BTL与高O2-有关(P=0.04),在血管则无关,而在IMA(ρ=-0.49,P=0.004)和SV(ρ=-0.52,P=0.01)中VTL与O2-相关。采用血管紧张素II(Ang II)孵育VSMC(30天),作为刺激NADPH氧化酶,可以使高反应性p22phoX等位基因携带者增加O2-和缩短TL(P=0.007)。

BTL可以预测AMI后心血管事件,独立于年龄,而VTL是一种组织特异性(而不是整体)的血管氧化应激标志物。BTL和VTL之间缺乏强大的相关性表明全身和血管因素在确定AMI后临床结局的重要性。

原始出处:

Marios Margaritis,et al. Predictive value of telomere length on outcome following acute myocardial infarction: evidence for contrasting effects of vascular vs. blood oxidative stress. Eur Heart J. https://doi.org/10.1093/eurheartj/ehx177

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    2017-04-27 zhaojie88
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    2017-04-27 slcumt
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1288622, encodeId=826c12886221a, content=<a href='/topic/show?id=8d20e5696c5' target=_blank style='color:#2F92EE;'>#端粒长度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75696, encryptionId=8d20e5696c5, topicName=端粒长度)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=395f25, createdName=爆笑小医, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1356238, encodeId=6136135623821, content=<a href='/topic/show?id=b0702e84b9' target=_blank style='color:#2F92EE;'>#ART#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2784, encryptionId=b0702e84b9, topicName=ART)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1562496, encodeId=527d156249667, content=<a href='/topic/show?id=f69d864413' target=_blank style='color:#2F92EE;'>#HEART#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8644, encryptionId=f69d864413, topicName=HEART)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=80d715270048, createdName=slcumt, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1626465, encodeId=feac162646541, content=<a href='/topic/show?id=558b100221c7' target=_blank style='color:#2F92EE;'>#预测价值#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100221, encryptionId=558b100221c7, topicName=预测价值)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e5f621038683, createdName=changjitao2016, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=190487, encodeId=058719048ed1, content=多看多学!!!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=078f1661649, createdName=wei834766788, createdTime=Tue Apr 25 14:21:27 CST 2017, time=2017-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=190486, encodeId=322e190486f7, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/04/25/ba882cb566d3be250a05e2a69b80f2c9.jpg, createdBy=32881678798, createdName=小M医师, createdTime=Tue Apr 25 14:11:00 CST 2017, time=2017-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=190481, encodeId=3cda1904810c, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/11/23/d95fde48d2044f401185c488baba9736.jpg, createdBy=ac6c78427, createdName=test1797, createdTime=Tue Apr 25 13:41:02 CST 2017, time=2017-04-25, status=1, ipAttribution=)]
    2017-04-25 wei834766788

    多看多学!!!!

    0

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    2017-04-25 小M医师

    不错

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=1288622, encodeId=826c12886221a, content=<a href='/topic/show?id=8d20e5696c5' target=_blank style='color:#2F92EE;'>#端粒长度#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=75696, encryptionId=8d20e5696c5, topicName=端粒长度)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=395f25, createdName=爆笑小医, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1356238, encodeId=6136135623821, content=<a href='/topic/show?id=b0702e84b9' target=_blank style='color:#2F92EE;'>#ART#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2784, encryptionId=b0702e84b9, topicName=ART)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1562496, encodeId=527d156249667, content=<a href='/topic/show?id=f69d864413' target=_blank style='color:#2F92EE;'>#HEART#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8644, encryptionId=f69d864413, topicName=HEART)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=80d715270048, createdName=slcumt, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1626465, encodeId=feac162646541, content=<a href='/topic/show?id=558b100221c7' target=_blank style='color:#2F92EE;'>#预测价值#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100221, encryptionId=558b100221c7, topicName=预测价值)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e5f621038683, createdName=changjitao2016, createdTime=Thu Apr 27 04:17:00 CST 2017, time=2017-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=190487, encodeId=058719048ed1, content=多看多学!!!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=078f1661649, createdName=wei834766788, createdTime=Tue Apr 25 14:21:27 CST 2017, time=2017-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=190486, encodeId=322e190486f7, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/04/25/ba882cb566d3be250a05e2a69b80f2c9.jpg, createdBy=32881678798, createdName=小M医师, createdTime=Tue Apr 25 14:11:00 CST 2017, time=2017-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=190481, encodeId=3cda1904810c, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/11/23/d95fde48d2044f401185c488baba9736.jpg, createdBy=ac6c78427, createdName=test1797, createdTime=Tue Apr 25 13:41:02 CST 2017, time=2017-04-25, status=1, ipAttribution=)]
    2017-04-25 test1797

    不错

    0

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