PNAS:失眠和更年期加速女性老龄化进程

2016-07-27 MedSci MedSci原创

发表在Proceedings of the National Academy of Sciences的一项新研究指出,研究人员发现更年期可加速细胞老化,并增加女性患年龄相关性疾病的风险。另一项发表在Biological Psychiatry的研究指出,失眠也可加速绝经后妇女的老化进程。 更年期是女性卵巢功能从旺盛状态逐渐衰退到完全消失的一个过渡时期,包括绝经和绝经前后的一段时间。在更年期,妇女可出

发表在Proceedings of the National Academy of Sciences的一项新研究指出,更年期可加速细胞老化并增加女性患年龄相关性疾病的风险。另一项发表在Biological Psychiatry的研究指出,失眠也可加速绝经后妇女的老化进程。 

更年期是女性卵巢功能从旺盛状态逐渐衰退到完全消失的一个过渡时期,包括绝经和绝经前后的一段时间。在更年期,妇女可出现一系列的生理和心理方面的变化。女性出现更年期的平均年龄为51岁,但具体时间因人而异。虽然女性因更年期所受的影响各有不同但普遍表现为面部出现色斑、皱纹,乳房干瘪萎缩、松弛;阴道泌液减少,性机能减退,失眠、烦躁、潮热、盗汗等症状,同时出现情绪的变化和膀胱问题。 

表面上看似乎老化是女性出现更年期的原因因此研究人员认为这是一个自然发生的过程。但UCLA的Steve Horvath博士认为,应该是更年期促进女性老龄化进程。他们指出,这就像是先有鸡还是先有蛋的问题。研究结果首次表明更年期会加速女性的老龄化进程。

在上文提到的两项研究中,研究人员使用“身体时钟”进行调查,并追踪由于内部或外部环境变化导致基因表达的改变。

在第一项研究中Horvath和同事们使用“身体时钟”探究3100多名女性(均参与四项研究,其中一项为WHI)的血液、唾液和口腔黏膜样本并分析其DNA甲基化的程度。研究人员可通过对细胞进行分析测量其生理年龄,并与女性的实际年龄进行比较。他们发现,绝经期可促进女性血液细胞老化速度加快6%。

举例而言,如果一名女性在42岁时便出现了更年期早期征兆,那么她50岁时的身体年龄将比50岁时出现更年期早期的女性老将近1岁。

具体而言,如果女性进入更年期进程,那么她的血液细胞老化速度加快。虽然表面看不出什么变化,但是会增加女性死亡和患病的风险。

原始出处:

Steve Horvath et al. Menopause accelerates biological aging. Proceedings of the National Academy of Sciences.2016 July.

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    2016-08-03 drwjr
  2. [GetPortalCommentsPageByObjectIdResponse(id=1855857, encodeId=98af185585e9b, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Wed Aug 03 18:55:00 CST 2016, time=2016-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=131778, encodeId=2daa131e7823, content=文章很好,非常有益, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Tue Sep 20 22:35:00 CST 2016, time=2016-09-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=125599, encodeId=43731255998f, content=要想保持健康,就要从良好的睡眠开始, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160907/IMG57D00CF1965701770.jpg, createdBy=565c1948251, createdName=舒心和人, createdTime=Tue Sep 13 18:16:00 CST 2016, time=2016-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=116842, encodeId=f353116842d9, content=赞!好文章,拜读,深入学习。, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Fri Sep 09 19:50:00 CST 2016, time=2016-09-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1344675, encodeId=f02713446e529, content=<a href='/topic/show?id=225d8029411' target=_blank style='color:#2F92EE;'>#老龄化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80294, encryptionId=225d8029411, topicName=老龄化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5742500212, createdName=12498f17m66暂无昵称, createdTime=Fri Jul 29 11:55:00 CST 2016, time=2016-07-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=94962, encodeId=35079496207, content=女性注意, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=a37a1710612, createdName=oo902, createdTime=Thu Jul 28 17:52:00 CST 2016, time=2016-07-28, status=1, ipAttribution=)]
    2016-09-20 1e10c84am36(暂无匿称)

    文章很好,非常有益

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1855857, encodeId=98af185585e9b, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Wed Aug 03 18:55:00 CST 2016, time=2016-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=131778, encodeId=2daa131e7823, content=文章很好,非常有益, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Tue Sep 20 22:35:00 CST 2016, time=2016-09-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=125599, encodeId=43731255998f, content=要想保持健康,就要从良好的睡眠开始, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160907/IMG57D00CF1965701770.jpg, createdBy=565c1948251, createdName=舒心和人, createdTime=Tue Sep 13 18:16:00 CST 2016, time=2016-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=116842, encodeId=f353116842d9, content=赞!好文章,拜读,深入学习。, beContent=null, objectType=article, channel=null, level=null, likeNumber=108, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Fri Sep 09 19:50:00 CST 2016, time=2016-09-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1344675, encodeId=f02713446e529, content=<a href='/topic/show?id=225d8029411' target=_blank style='color:#2F92EE;'>#老龄化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80294, encryptionId=225d8029411, topicName=老龄化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5742500212, createdName=12498f17m66暂无昵称, createdTime=Fri Jul 29 11:55:00 CST 2016, time=2016-07-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=94962, encodeId=35079496207, content=女性注意, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=a37a1710612, createdName=oo902, createdTime=Thu Jul 28 17:52:00 CST 2016, time=2016-07-28, status=1, ipAttribution=)]
    2016-09-13 舒心和人

    要想保持健康,就要从良好的睡眠开始

    0

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    2016-09-09 1e10c84am36(暂无匿称)

    赞!好文章,拜读,深入学习。

    0

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    2016-07-28 oo902

    女性注意

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