Circulation:全球大型遗传研究表明舒张压低不会增加心脏病风险,或将改写医疗指南

2021-04-14 Oranhgy MedSci原创

高血压是全球过早死亡的主要原因,有超过10亿人患有此病。高血压与大脑、肾脏和其他疾病有关,但它作为心脏病发作的危险因素最为人所知。高血压也是感染Covid-19的高风险因素。降压治疗为高血压治疗方法,

高血压是全球过早死亡的主要原因,有超过10亿人患有此病。高血压与大脑、肾脏和其他疾病有关,但它作为心脏病发作的危险因素最为人所知。高血压也是感染Covid-19的高风险因素。降压治疗为高血压治疗方法,然而在临床中,会遇到收缩压(SBP)高但舒张压(DBP)低的病人,在用药上,SBP和DBP会一起降低,是否会增加并发症风险一直是困扰医生的难题。

近期,由美国国家预防血管健康研究所(NIPC)首席研究员Bill McEvoy领导,约翰-霍普金斯大学以及哈佛医学院的研究团队联合撰写,发表在Ciculation的全球最大型遗传研究发现,就算DBP降低到50以下,也不会心脏病风险增加。

研究团队通过新技术从无偏倚遗传信息出发,分析了全球47407名平均年龄为60岁的高血压患者的基因和生存数据。

首先为了证实以前的观察分析,研究人员使用传统的统计方法来测试DBP和心血管疾病(CVD)之间的关联形状。随后,研究团队创建DBP和收缩压的多基因风险评分,并生成DBP对CVD影响的线性孟德尔随机化(MR)估计。最后,使用新非线性MR方法,评估DBP和CVD事件之间遗传关系的非线性。鉴于收缩压与舒张压强相关性,该研究同时也对收缩压进行建模。

传统观察分析表明,DBP和MI之间存在J型关联。相比之下,线性MR分析表明,增加DBP增量对CVD结局有不利影响,包括MI(MI 风险比HR,DBP每增加1mmHg增加1.07;P<0.001)。此外,非线性MR分析没有发现J型关系的证据;反而证实了每单位DBP下降,MI风险持续下降,即使在基线DBP值较低的个体中。

新非线性MR方法,评估SBPDBP和CVD事件之间遗传关系

DBP和MI之间存在J型关联

结果分析显示,在对DBP遗传效应的分析中,没有发现DBP与心血管疾病不良结果(包括MI)之间存在非线性J型或U型关系的证据

此外,该研究还发现患者的舒张压读数低至50时,没有遗传证据表明心脏病风险增加,并且再次证实,收缩压读数超过120的数值会增加心脏病和中风的风险,以及血压药物可以降低收缩压和舒张压值。

该研究数据有助于消除临床中如何治疗收缩压升高但舒张压低患者的不确定性。

McEvoy教授表示,此前的研究显示舒张压过低会增加心脏病风险,而此次我们现在有了基于遗传学的详细研究,为医生提供了急需的明确性,即如何治疗那些具有高收缩压值,但舒张压较低的患者。研究结果使医生可以在收缩压值升高时放心进行治疗,而不用担心舒张压降得太低。同时McEvoy教授建议临床医生,在可能且没有副作用的情况下,将高血压患者的收缩压水平降到100-130mmHg之间,不用担心舒张压值。

20世纪六七十年代主流医学界认为舒张压更加重要。1977年第一版的JNC指南根据舒张压的标准来诊断和治疗高血压。因为那个时候的理论认为随着年龄的增加,大血管硬化逐渐丧失弹性,收缩压随着年龄的增加是不可避免的;而相反,舒张压则被认为是代表着外周血管的阻力。所以舒张压增高则为异常而需要进行干预治疗。根据那个时候的临床指南,180/85mmHg的血压是不需要治疗的,甚至有知名学者提出治疗降低老年人中增高的收缩压可能会降低大脑的供血而增加中风的可能性。

1969年,一个大型的临床研究Framingham心脏研究试验发现收缩压与心脑血管疾病的风险联系密切。收缩压每增加10mmHg,心脑血管疾病的风险增加了10%。该临床试验成为高血压治疗史上的一个里程碑。

原始文献:

Marios Arvanitis, Guanghao Qi, Deepak L. Bhatt, Wendy S. Post, Nilanjan Chatterjee, Alexis Battle, John W. McEvoy. Linear and Nonlinear Mendelian Randomization Analyses of the Association Between Diastolic Blood Pressure and Cardiovascular EventsCirculation, 2021; 143 (9): 895 DOI: 10.1161/CIRCULATIONAHA.120.049819

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  3. [GetPortalCommentsPageByObjectIdResponse(id=956953, encodeId=da2a95695304, content=三人行,必有我师。 <a href='/topic/show?id=d55f104233bd' target=_blank style='color:#2F92EE;'>#梅斯医学科研互助群#</a> 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104233, encryptionId=d55f104233bd, topicName=梅斯医学科研互助群)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210413/a7082efd72134f339011deffae56d660/9f9bdab2a00341ce92bf6fd196c67f81.png, createdBy=4e205474392, createdName=七安, createdTime=Wed Apr 14 16:59:49 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1323121, encodeId=02e31323121fd, content=<a href='/topic/show?id=80ca865895e' target=_blank style='color:#2F92EE;'>#舒张压#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86589, encryptionId=80ca865895e, topicName=舒张压)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1ac22500003, createdName=1249842em09(暂无昵称), createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1559745, encodeId=dce51559e45d7, content=<a href='/topic/show?id=b8435162302' target=_blank style='color:#2F92EE;'>#心脏病风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=51623, encryptionId=b8435162302, topicName=心脏病风险)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=94f015012402, createdName=mgqwxj, createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1565754, encodeId=01b11565e5481, content=<a href='/topic/show?id=b8435162302' target=_blank style='color:#2F92EE;'>#心脏病风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=51623, encryptionId=b8435162302, topicName=心脏病风险)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=94f015012402, createdName=mgqwxj, createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956978, encodeId=8bcf9569e8d4, content=厘清认识, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=46905128057, createdName=zy&kt, createdTime=Wed Apr 14 18:05:20 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956977, encodeId=09cc9569e7a1, content=三人行,必有我师。 <a href='/topic/show?id=d55f104233bd' target=_blank style='color:#2F92EE;'>#梅斯医学科研互助群#</a> 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104233, encryptionId=d55f104233bd, topicName=梅斯医学科研互助群)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210413/08ec7710e47c4f6dba6c277207bf00ec/823f09e953ea44188e56b38cd2f16334.jpg, createdBy=ec565230154, createdName=梅干儿, createdTime=Wed Apr 14 18:04:46 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956930, encodeId=25d49569308a, content=不错,收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=1f2b5480434, createdName=ms9000001859532182, createdTime=Wed Apr 14 15:45:17 CST 2021, time=2021-04-14, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=956953, encodeId=da2a95695304, content=三人行,必有我师。 <a href='/topic/show?id=d55f104233bd' target=_blank style='color:#2F92EE;'>#梅斯医学科研互助群#</a> 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104233, encryptionId=d55f104233bd, topicName=梅斯医学科研互助群)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210413/a7082efd72134f339011deffae56d660/9f9bdab2a00341ce92bf6fd196c67f81.png, createdBy=4e205474392, createdName=七安, createdTime=Wed Apr 14 16:59:49 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1323121, encodeId=02e31323121fd, content=<a href='/topic/show?id=80ca865895e' target=_blank style='color:#2F92EE;'>#舒张压#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86589, encryptionId=80ca865895e, topicName=舒张压)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1ac22500003, createdName=1249842em09(暂无昵称), createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1559745, encodeId=dce51559e45d7, content=<a href='/topic/show?id=b8435162302' target=_blank style='color:#2F92EE;'>#心脏病风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=51623, encryptionId=b8435162302, topicName=心脏病风险)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=94f015012402, createdName=mgqwxj, createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1565754, encodeId=01b11565e5481, content=<a href='/topic/show?id=b8435162302' target=_blank style='color:#2F92EE;'>#心脏病风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=51623, encryptionId=b8435162302, topicName=心脏病风险)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=94f015012402, createdName=mgqwxj, createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956978, encodeId=8bcf9569e8d4, content=厘清认识, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=46905128057, createdName=zy&kt, createdTime=Wed Apr 14 18:05:20 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956977, encodeId=09cc9569e7a1, content=三人行,必有我师。 <a href='/topic/show?id=d55f104233bd' target=_blank style='color:#2F92EE;'>#梅斯医学科研互助群#</a> 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104233, encryptionId=d55f104233bd, topicName=梅斯医学科研互助群)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210413/08ec7710e47c4f6dba6c277207bf00ec/823f09e953ea44188e56b38cd2f16334.jpg, createdBy=ec565230154, createdName=梅干儿, createdTime=Wed Apr 14 18:04:46 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956930, encodeId=25d49569308a, content=不错,收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=1f2b5480434, createdName=ms9000001859532182, createdTime=Wed Apr 14 15:45:17 CST 2021, time=2021-04-14, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=956953, encodeId=da2a95695304, content=三人行,必有我师。 <a href='/topic/show?id=d55f104233bd' target=_blank style='color:#2F92EE;'>#梅斯医学科研互助群#</a> 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104233, encryptionId=d55f104233bd, topicName=梅斯医学科研互助群)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210413/a7082efd72134f339011deffae56d660/9f9bdab2a00341ce92bf6fd196c67f81.png, createdBy=4e205474392, createdName=七安, createdTime=Wed Apr 14 16:59:49 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1323121, encodeId=02e31323121fd, content=<a href='/topic/show?id=80ca865895e' target=_blank style='color:#2F92EE;'>#舒张压#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86589, encryptionId=80ca865895e, topicName=舒张压)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1ac22500003, createdName=1249842em09(暂无昵称), createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1559745, encodeId=dce51559e45d7, content=<a href='/topic/show?id=b8435162302' target=_blank style='color:#2F92EE;'>#心脏病风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=51623, encryptionId=b8435162302, topicName=心脏病风险)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=94f015012402, createdName=mgqwxj, createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1565754, encodeId=01b11565e5481, content=<a href='/topic/show?id=b8435162302' target=_blank style='color:#2F92EE;'>#心脏病风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=51623, encryptionId=b8435162302, topicName=心脏病风险)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=94f015012402, createdName=mgqwxj, createdTime=Fri Apr 16 06:12:31 CST 2021, time=2021-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956978, encodeId=8bcf9569e8d4, content=厘清认识, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=46905128057, createdName=zy&kt, createdTime=Wed Apr 14 18:05:20 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956977, encodeId=09cc9569e7a1, content=三人行,必有我师。 <a href='/topic/show?id=d55f104233bd' target=_blank style='color:#2F92EE;'>#梅斯医学科研互助群#</a> 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104233, encryptionId=d55f104233bd, topicName=梅斯医学科研互助群)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210413/08ec7710e47c4f6dba6c277207bf00ec/823f09e953ea44188e56b38cd2f16334.jpg, createdBy=ec565230154, createdName=梅干儿, createdTime=Wed Apr 14 18:04:46 CST 2021, time=2021-04-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=956930, encodeId=25d49569308a, content=不错,收藏, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=1f2b5480434, createdName=ms9000001859532182, createdTime=Wed Apr 14 15:45:17 CST 2021, time=2021-04-14, status=1, ipAttribution=)]
    2021-04-14 zy&kt

    厘清认识

    0

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    2021-04-14 梅干儿

    三人行,必有我师。 #梅斯医学科研互助群# 欢迎您的加入,添加【梅斯医学科研助手WeChat:medsci_2021】邀您进群! 【社群简介】👉 梅斯医学目前已建立覆盖肿瘤、心血管、神经、消化、内分泌、呼吸等30个科室的学习交流社群。 【入群福利】👉 群内可实时交流病例,提问同行,跨群讨论,每天更新前沿医学资讯和指南共识,每周推出至少1场专业直播,不时共享科研干货,入群即可获得100份SCI写作攻略!

    0

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    2021-04-14 ms9000001859532182

    不错,收藏

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