永葆青春的秘诀藏在屎里?Microbiome:“换屎疗法”逆转肠道、大脑和眼衰老特征

2022-05-13 四五七 MedSci原创

Microbiome:将年轻小鼠的粪便移植到年老小鼠体内,能够逆转年老小鼠肠道、眼睛和大脑的衰老特征。

在西方文明中,一直流传着“年轻的血液能够逆转衰老、永葆青春”的说法,古埃及国王深信沐浴在年轻人的血液中能够缓解病痛,使老年人焕发生机。罗马天主教皇英诺森八世临死前命人割开三个童男的动脉为他输血以获取这些童男的青春。

蒙昧时代的换血疗法,最终都以失败告终,然而现代科学研究“make 换血疗法 great again”,异时异种共生小鼠实验,证明年轻小鼠的血液能够使老年小鼠多个器官“返老还童”、促进再生,改善认知能力。

可以说,是年轻的血液构成了青春之泉(Fountain of Youth),但如果有一天,青春之泉冒出了粪水(那画面太美我不敢看)……

近期,英国东英吉利大学的科学家发表在Microbiome的一项研究,证明了将年轻小鼠的粪便移植到年老小鼠体内,能够逆转年老小鼠肠道、眼睛和大脑的衰老特征(如果换血疗法太贵,换屎疗法了解一下)

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“换屎疗法”的诞生,和炎性衰老(inflammaging)脱不开关系,衰老伴随着体内炎症水平升高,炎症不仅加速了衰老进程,还是诸多慢性病发生的共同基础。

而肠道中的微生物在这一过程中发挥着重要作用,肠道衰老引起肠黏膜通透性增加,肠道微生物产生的有害物质和食物抗原渗漏进入血液系统,引起慢性炎症发生。

研究人员寄希望于“换屎疗法”——将年轻小鼠的粪便微生物移植到年老小鼠体内,或许能够修复渗漏的肠黏膜,降低全身炎症水平,救器官于慢性炎症之中,逆转衰老。

实验开始,首先准备好年轻小鼠(3月龄年轻小鼠,相当于人类20岁)和年老小鼠的粪便(24月龄老年小鼠,相当于人类69岁),做成粪水。

小鼠连续3天服用广谱抗生素清除肠道原有微生物后,通过粪水灌胃的手段来移植肠道微生物(真“吔屎啦你”)

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虽然经历了粪水制作以及胃部的消化道作用,但年轻小鼠粪便中的大部分微生物都成功移植到了的年老小鼠肠道之中,特别是有利于肠道健康的双歧杆菌、阿克曼氏菌(Akkermansia muciniphila)

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肠道微生物的改变的结果是年老小鼠的脂质、维生素代谢通路也发生了相应的改变,具体表现在中链、长链脂肪酸合成增加,维生素B7、B9合成增加。

接下来就到了研究人员最关心的问题——移植了年轻小鼠的肠道微生物后,年老小鼠的肠黏膜渗漏改善了吗?体内炎症水平是否下降?

实验结果基本符合预期的情况,移植年轻小鼠粪便的18天后,年老小鼠肠道渗漏情况明显好转,血清中的I-FABP下降了30%,LBP更是直接恢复到年轻时的水平(两种提示肠渗漏的蛋白)

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在降低炎症方面,移植了年轻小鼠粪便的年老小鼠,肠道中的TNF水平下降了40%,不仅如此,两个受慢性炎症影响较大的器官——眼睛和脑部的炎症水平也发生了下降。

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炎症性补体蛋白C3增多与视网膜变性息息相关,在移植了年轻小鼠粪便后,年老小鼠视网膜C3水平降低至年轻小鼠水平,并且促视觉色素再生的关键因子RPE65显著提高。导致这些结果的原因,一个是视网膜炎症水平下降是一个原因,另一方面可能源于体内B族维生素的合成增加。

图片

图注:3月龄小鼠(young),18月龄小鼠(old),24月龄小鼠(aged)

脑部慢性炎症和小胶质细胞过度激活将导致神经退行性疾病发生以及认知功能减退。移植年轻小鼠粪便后,年老小鼠大脑Iba-1+细胞数量减少,提示小胶质细胞激活减少,脑部炎症情况改善。

图片

最后,研究人员还试图通过新奇物识别实验(Novel object recognition)以及Y迷宫实验来评估移植了年轻小鼠粪便的年老小鼠认知能力改善情况,遗憾的是,结果并不显著,也许是因为短期的粪便移植并不能显著提高年老小鼠的认知能力,毕竟以往的“换血疗法”在进行了8个疗程后,才看到治疗效果,观察粪便移植的长期效果,增加粪便移植疗程是研究人员接下来的目标。

这项研究为肠道微生物直接参与肠道衰老、脑衰老、视觉衰老提供了证据,提示肠道微生物替代疗法可作为这类疾病潜在的治疗方法。

研究的主要作者Aimee Parker博士表示:肠道微生物与周围组织、器官衰老有着密切联系,希望这项研究最终能够使得人们在日常生活中通过调控饮食和肠道微生物来最大限度提高身体健康。

 

参考资料

[1]Parker A, Romano S, Ansorge R, et al. Fecal microbiota transfer between young and aged mice reverses hallmarks of the aging gut, eye, and brain. Microbiome. 2022;10(1):68. Published 2022 Apr 29. doi:10.1186/s40168-022-01243-w

[2]Conboy IM, Conboy MJ, Wagers AJ, Girma ER, Weissman IL, Rando TA. Rejuvenation of aged progenitor cells by exposure to a young systemic environment. Nature. 2005;433(7027):760-764. doi:10.1038/nature03260

[3]Franceschi C, Garagnani P, Parini P, Giuliani C, Santoro A. Inflammaging: a new immune-metabolic viewpoint for age-related diseases. Nat Rev Endocrinol. 2018;14(10):576-590. doi:10.1038/s41574-018-0059-4

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#插入话题
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    2023-01-19 jiazhoudexue 来自纽约

    这个实验比较靠谱,可以大规模的继续!

    0

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    2022-08-23 xjy02
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    2022-10-23 pyaili
  4. [GetPortalCommentsPageByObjectIdResponse(id=2110801, encodeId=3ac521108016f, content=这个实验比较靠谱,可以大规模的继续!, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/AF43A7988964C1346E091DE08822DCC1/100, createdBy=1b2b1959838, createdName=jiazhoudexue, createdTime=Thu Jan 19 00:53:25 CST 2023, time=2023-01-19, status=1, ipAttribution=纽约), GetPortalCommentsPageByObjectIdResponse(id=2084735, encodeId=7a752084e3575, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Tue Aug 23 13:31:25 CST 2022, time=2022-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1634176, encodeId=472316341e650, content=<a href='/topic/show?id=4ffe11e09d8' target=_blank style='color:#2F92EE;'>#Microbiome#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11709, encryptionId=4ffe11e09d8, topicName=Microbiome)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=39c822073631, createdName=pyaili, createdTime=Sun Oct 23 03:31:25 CST 2022, time=2022-10-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1858047, encodeId=4f66185804e3d, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Sun Jun 26 22:31:25 CST 2022, time=2022-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1919441, encodeId=02011919441fa, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Apr 17 21:31:25 CST 2023, time=2023-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219266, encodeId=132f121926663, content=思<a href='/topic/show?id=a27c1039589a' target=_blank style='color:#2F92EE;'>#插入话题#</a> 路很突破传统, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103958, encryptionId=a27c1039589a, topicName=插入话题)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/gKNgZiaia7XBE8lJLn1fp5u443yIhUNiaN9RztibctRREAGYVEtL7eC22wG0DzYdDiaiaTAEg4HaotaF4icegqk4VQvCA/132, createdBy=d6182579909, createdName=西瓜0628, createdTime=Fri May 13 08:37:18 CST 2022, time=2022-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219258, encodeId=dafd121925899, content=这是一篇有味道的学习文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201031/ec9980fea6134cbfb6893a2911c4593d/5a8af98346fa4a84905551b204f29c4d.jpg, createdBy=37445430654, createdName=戴小舞, createdTime=Fri May 13 07:49:16 CST 2022, time=2022-05-13, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=2110801, encodeId=3ac521108016f, content=这个实验比较靠谱,可以大规模的继续!, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/AF43A7988964C1346E091DE08822DCC1/100, createdBy=1b2b1959838, createdName=jiazhoudexue, createdTime=Thu Jan 19 00:53:25 CST 2023, time=2023-01-19, status=1, ipAttribution=纽约), GetPortalCommentsPageByObjectIdResponse(id=2084735, encodeId=7a752084e3575, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Tue Aug 23 13:31:25 CST 2022, time=2022-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1634176, encodeId=472316341e650, content=<a href='/topic/show?id=4ffe11e09d8' target=_blank style='color:#2F92EE;'>#Microbiome#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11709, encryptionId=4ffe11e09d8, topicName=Microbiome)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=39c822073631, createdName=pyaili, createdTime=Sun Oct 23 03:31:25 CST 2022, time=2022-10-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1858047, encodeId=4f66185804e3d, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Sun Jun 26 22:31:25 CST 2022, time=2022-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1919441, encodeId=02011919441fa, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Apr 17 21:31:25 CST 2023, time=2023-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219266, encodeId=132f121926663, content=思<a href='/topic/show?id=a27c1039589a' target=_blank style='color:#2F92EE;'>#插入话题#</a> 路很突破传统, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103958, encryptionId=a27c1039589a, topicName=插入话题)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/gKNgZiaia7XBE8lJLn1fp5u443yIhUNiaN9RztibctRREAGYVEtL7eC22wG0DzYdDiaiaTAEg4HaotaF4icegqk4VQvCA/132, createdBy=d6182579909, createdName=西瓜0628, createdTime=Fri May 13 08:37:18 CST 2022, time=2022-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219258, encodeId=dafd121925899, content=这是一篇有味道的学习文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201031/ec9980fea6134cbfb6893a2911c4593d/5a8af98346fa4a84905551b204f29c4d.jpg, createdBy=37445430654, createdName=戴小舞, createdTime=Fri May 13 07:49:16 CST 2022, time=2022-05-13, status=1, ipAttribution=)]
    2023-04-17 sunylz
  6. [GetPortalCommentsPageByObjectIdResponse(id=2110801, encodeId=3ac521108016f, content=这个实验比较靠谱,可以大规模的继续!, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/AF43A7988964C1346E091DE08822DCC1/100, createdBy=1b2b1959838, createdName=jiazhoudexue, createdTime=Thu Jan 19 00:53:25 CST 2023, time=2023-01-19, status=1, ipAttribution=纽约), GetPortalCommentsPageByObjectIdResponse(id=2084735, encodeId=7a752084e3575, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Tue Aug 23 13:31:25 CST 2022, time=2022-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1634176, encodeId=472316341e650, content=<a href='/topic/show?id=4ffe11e09d8' target=_blank style='color:#2F92EE;'>#Microbiome#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11709, encryptionId=4ffe11e09d8, topicName=Microbiome)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=39c822073631, createdName=pyaili, createdTime=Sun Oct 23 03:31:25 CST 2022, time=2022-10-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1858047, encodeId=4f66185804e3d, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Sun Jun 26 22:31:25 CST 2022, time=2022-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1919441, encodeId=02011919441fa, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Apr 17 21:31:25 CST 2023, time=2023-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219266, encodeId=132f121926663, content=思<a href='/topic/show?id=a27c1039589a' target=_blank style='color:#2F92EE;'>#插入话题#</a> 路很突破传统, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103958, encryptionId=a27c1039589a, topicName=插入话题)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/gKNgZiaia7XBE8lJLn1fp5u443yIhUNiaN9RztibctRREAGYVEtL7eC22wG0DzYdDiaiaTAEg4HaotaF4icegqk4VQvCA/132, createdBy=d6182579909, createdName=西瓜0628, createdTime=Fri May 13 08:37:18 CST 2022, time=2022-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219258, encodeId=dafd121925899, content=这是一篇有味道的学习文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201031/ec9980fea6134cbfb6893a2911c4593d/5a8af98346fa4a84905551b204f29c4d.jpg, createdBy=37445430654, createdName=戴小舞, createdTime=Fri May 13 07:49:16 CST 2022, time=2022-05-13, status=1, ipAttribution=)]
    2022-05-13 西瓜0628

    #插入话题# 路很突破传统

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=2110801, encodeId=3ac521108016f, content=这个实验比较靠谱,可以大规模的继续!, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/AF43A7988964C1346E091DE08822DCC1/100, createdBy=1b2b1959838, createdName=jiazhoudexue, createdTime=Thu Jan 19 00:53:25 CST 2023, time=2023-01-19, status=1, ipAttribution=纽约), GetPortalCommentsPageByObjectIdResponse(id=2084735, encodeId=7a752084e3575, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Tue Aug 23 13:31:25 CST 2022, time=2022-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1634176, encodeId=472316341e650, content=<a href='/topic/show?id=4ffe11e09d8' target=_blank style='color:#2F92EE;'>#Microbiome#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11709, encryptionId=4ffe11e09d8, topicName=Microbiome)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=39c822073631, createdName=pyaili, createdTime=Sun Oct 23 03:31:25 CST 2022, time=2022-10-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1858047, encodeId=4f66185804e3d, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Sun Jun 26 22:31:25 CST 2022, time=2022-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1919441, encodeId=02011919441fa, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Apr 17 21:31:25 CST 2023, time=2023-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219266, encodeId=132f121926663, content=思<a href='/topic/show?id=a27c1039589a' target=_blank style='color:#2F92EE;'>#插入话题#</a> 路很突破传统, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103958, encryptionId=a27c1039589a, topicName=插入话题)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/gKNgZiaia7XBE8lJLn1fp5u443yIhUNiaN9RztibctRREAGYVEtL7eC22wG0DzYdDiaiaTAEg4HaotaF4icegqk4VQvCA/132, createdBy=d6182579909, createdName=西瓜0628, createdTime=Fri May 13 08:37:18 CST 2022, time=2022-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1219258, encodeId=dafd121925899, content=这是一篇有味道的学习文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20201031/ec9980fea6134cbfb6893a2911c4593d/5a8af98346fa4a84905551b204f29c4d.jpg, createdBy=37445430654, createdName=戴小舞, createdTime=Fri May 13 07:49:16 CST 2022, time=2022-05-13, status=1, ipAttribution=)]
    2022-05-13 戴小舞

    这是一篇有味道的学习文章

    0

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粪便移植后患者死亡,NEJM全新文章公布细节!

2019年6月13日,美国FDA发布通告称,因为接受了含有耐药细菌的粪便移植,两名患者发生严重感染,其中一名患者死亡。10月30日,NEJM在线连发三篇“粪便移植”相关文章,在《Drug-Resistant E. coli Bacteremia Transmitted by Fecal Microbiota Transplant》一文中,研究者详细描述了事件的经过以及两名患者的疾病发展和诊治过

Nat Commun:安慰剂对照试验:粪便微生物群移植治疗HIV

研究人员进行了一项试点双盲研究,其研究了30名接受抗逆转录病毒治疗(ART)且CD4/CD8比值<1的HIV感染受试者。患者随机接受每周粪便微生物菌群胶囊或安慰剂治疗8周。

GUT: 粪便病毒移植可减轻鼠模型中2型糖尿病和肥胖的症状

肥胖和2型糖尿病(T2D)的发展与肠道菌群(GM)的变化有关。肠道病毒群落以噬菌体(噬菌体)为主,噬菌体是以宿主特异性方式攻击细菌的病毒。

粪便移植后,一名患者死亡,临床试验被叫停...

2019年6月13日,美国FDA发布通告称,因为接受了含有耐药细菌的粪便移植,两名患者发生严重感染,其中一名患者死亡。目前,一系列临床试验被叫停,直到研究者们可以证明他们已制定严格流程,筛掉含有有害微生物的捐赠粪便。FDA生物制品评价和研究中心主任Peter Marks博士在采访中没有具体说明有多少试验将会被暂停,但他表示“不会太少”。美国FDA官网截图粪便移植目前被越来越多用于治疗严重肠道疾病,

J Crohns Colitis:采用粪便移植和饮食干预治疗轻中度活动性溃疡性结肠炎?

比粪便移植相比,仅予以活动性溃疡性结肠炎患者UC排除饮食可实现更高的临床缓解率和黏膜愈合率。