Nat Metab:“神药”还是“毒药”,二甲双胍缩短衰老生物体寿命

2020-11-04 haibei MedSci原创

研究人员在Nature Metabolism杂志发文,其发现,在线虫和人类原代细胞中,当在晚期提供二甲双胍时,二甲双胍会缩短寿命,这与它在年轻生物体中的积极作用相反。

二甲双胍在临床上用于促进胰岛素抵抗(2型糖尿病)患者的葡萄糖分解,它被认为是通过抑制线粒体呼吸发挥作用的。最近,二甲双胍已被发现在一系列动物模型中帮助延长寿命。

研究人员正在收集和分析数据,探究在人类临床上,二甲双胍治疗的糖尿病患者的寿命长短。结果显示,二甲双胍暴露的糖尿病队列比未经治疗的健康参与者寿命更长,符合二甲双胍潜在的延长寿命的特性。

然而,非糖尿病人群对二甲双胍治疗的代谢反应还没有被研究。

最近,研究人员在Nature Metabolism杂志发文,其发现,在线虫和人类原代细胞中,当在晚期提供二甲双胍时,二甲双胍会缩短寿命,这与它在年轻生物体中的积极作用相反。

研究人员还发现,二甲双胍会加剧衰老相关的线粒体功能障碍,导致呼吸衰竭。在衰老模型中,二甲双胍未能诱导糖酵解的激活,也不能激活饮食限制类似的脂质储备,导致二甲双胍处理的老年蠕虫和衰老人体细胞出现致命的ATP耗竭,这可以通过细胞ATP含量的异位稳定来挽救。

二甲双胍的毒性在胰岛素受体信号中断的蠕虫中得到缓解,这些蠕虫在老年时对线粒体扭曲的复原力增强。

因此,该研究数据共同表明,二甲双胍在晚年诱导保守代谢途径的有害变化,这可能使人们对其在没有糖尿病的老年人的益处产生怀疑。

 

原始出处:

Lilia Espada et al. Loss of metabolic plasticity underlies metformin toxicity in aged Caenorhabditis elegans. Nature Metabolism (2020). 

 

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    2020-12-30 liye789132251
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    2021-01-20 一闲
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    2021-02-17 guojianrong
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    2020-11-06 983929547

    很好的文章

    0

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    2020-11-04 lovetcm

    #二甲双胍#还不致于是毒药,只是时空条件不同,对于#衰老#作用可能不一样而已

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1884771, encodeId=60d71884e71d1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 30 14:20:52 CST 2020, time=2020-12-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1896769, encodeId=6a1f1896e6978, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Wed Jan 20 04:20:52 CST 2021, time=2021-01-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1888233, encodeId=add01888233a6, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Wed Feb 17 18:20:52 CST 2021, time=2021-02-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=897455, encodeId=69f489e45501, content=很好的文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=42633007966, createdName=983929547, createdTime=Fri Nov 06 23:42:32 CST 2020, time=2020-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=896906, encodeId=233b8969067b, content=<a href='/topic/show?id=ce9d239823b' target=_blank style='color:#2F92EE;'>#二甲双胍#</a>还不致于是毒药,只是时空条件不同,对于<a href='/topic/show?id=4c239032154' target=_blank style='color:#2F92EE;'>#衰老#</a>作用可能不一样而已, beContent=null, objectType=article, channel=null, level=null, likeNumber=145, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23982, encryptionId=ce9d239823b, topicName=二甲双胍), TopicDto(id=90321, encryptionId=4c239032154, topicName=衰老)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Wed Nov 04 17:39:54 CST 2020, time=2020-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1041559, encodeId=0774104155920, content=二甲双胍,神药!, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Wed Nov 04 17:20:52 CST 2020, time=2020-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=896879, encodeId=856b8968e907, content=有意思,神药3二甲双胍#在衰老生物体中会缩短寿命。, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211019/df01a4bfb64246379ddfef3370d04115/e1274c8eb5e440918f56f83bcfea9031.jpg, createdBy=3a345397082, createdName=Jessica, createdTime=Wed Nov 04 15:59:53 CST 2020, time=2020-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=896875, encodeId=18778968e582, content=二甲双胍神药, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e39e5226547, createdName=1478fcfem77暂无昵称, createdTime=Wed Nov 04 15:43:58 CST 2020, time=2020-11-04, status=1, ipAttribution=)]
    2020-11-04 misszhang

    二甲双胍,神药!

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=1884771, encodeId=60d71884e71d1, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 30 14:20:52 CST 2020, time=2020-12-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1896769, encodeId=6a1f1896e6978, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Wed Jan 20 04:20:52 CST 2021, time=2021-01-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1888233, encodeId=add01888233a6, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Wed Feb 17 18:20:52 CST 2021, time=2021-02-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=897455, encodeId=69f489e45501, content=很好的文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=42633007966, createdName=983929547, createdTime=Fri Nov 06 23:42:32 CST 2020, time=2020-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=896906, encodeId=233b8969067b, content=<a href='/topic/show?id=ce9d239823b' target=_blank style='color:#2F92EE;'>#二甲双胍#</a>还不致于是毒药,只是时空条件不同,对于<a href='/topic/show?id=4c239032154' target=_blank style='color:#2F92EE;'>#衰老#</a>作用可能不一样而已, beContent=null, objectType=article, channel=null, level=null, likeNumber=145, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23982, encryptionId=ce9d239823b, topicName=二甲双胍), TopicDto(id=90321, encryptionId=4c239032154, topicName=衰老)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Wed Nov 04 17:39:54 CST 2020, time=2020-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1041559, encodeId=0774104155920, content=二甲双胍,神药!, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Wed Nov 04 17:20:52 CST 2020, time=2020-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=896879, encodeId=856b8968e907, content=有意思,神药3二甲双胍#在衰老生物体中会缩短寿命。, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211019/df01a4bfb64246379ddfef3370d04115/e1274c8eb5e440918f56f83bcfea9031.jpg, createdBy=3a345397082, createdName=Jessica, createdTime=Wed Nov 04 15:59:53 CST 2020, time=2020-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=896875, encodeId=18778968e582, content=二甲双胍神药, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e39e5226547, createdName=1478fcfem77暂无昵称, createdTime=Wed Nov 04 15:43:58 CST 2020, time=2020-11-04, status=1, ipAttribution=)]
    2020-11-04 Jessica

    有意思,神药3二甲双胍#在衰老生物体中会缩短寿命。

    0

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    2020-11-04 1478fcfem77暂无昵称

    二甲双胍神药

    0

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