Baidu
map

Nat Commun:肠道微生物群是健康老年人的秘密吗?

2019-06-10 佚名 生物通

要点: 移植年轻小鼠的粪便可以增强老年小鼠的肠道免疫系统。由于年龄增长,肠道免疫反应下降并不是不可逆转的,肠道细菌可以促进老年个体肠道免疫反应。肠道微生物群可能是治疗一系列衰老相关症状以促进健康老龄化的目标。


要点: 移植年轻小鼠的粪便可以增强老年小鼠的肠道免疫系统。由于年龄增长,肠道免疫反应下降并不是不可逆转的,肠道细菌可以促进老年个体肠道免疫反应。肠道微生物群可能是治疗一系列衰老相关症状以促进健康老龄化的目标。

剑桥Babraham研究所免疫学家的一项研究表明,移植幼鼠粪便给老年小鼠可以刺激肠道微生物群并恢复肠道免疫系统。这项研究发表在《 Nature Communications》杂志上。 

肠道是受衰老影响最严重的器官之一,人类肠道微生物群的年龄依赖性变化与虚弱、炎症和肠道疾病易感性增加有关。这些肠道微生物群的年龄依赖性变化与肠道免疫系统功能的下降同时发生,但直到现在,还不知道两者变化是否有联系。

“我们的肠道微生物群由数百种不同类型的细菌组成,这些细菌对我们的健康至关重要,在我们的新陈代谢、大脑功能和免疫反应中发挥着作用,”主要研究人员Marisa Stebegg博士解释说。“我们的免疫系统不断地与肠道中的细菌相互作用。作为免疫学家,我的研究课题是为什么衰老后,我们的免疫系统就不能好好工作?我们也有兴趣探索肠道微生物群的组成是否影响肠道免疫反应的强度。”

混合饲养年轻和老年小鼠(小鼠天生喜欢从其他小鼠的粪便中摄取营养!)或者更直接地,转移年轻小鼠粪便给老年小鼠,都可以增强老年小鼠的肠道免疫系统,部分纠正与衰老相关的身体机能下降。

“令我们惊讶的是,共同居住拯救了老年小鼠肠道免疫反应的降低。观察所涉及的免疫细胞数量,老年小鼠的肠道免疫反应几乎与年轻小鼠的肠道免疫反应不可区分,”Babraham 研究所免疫计划小组负责人Michelle Linterman博士评论道。

结果表明,不良的肠道免疫反应并不是不可逆转的,并且可以通过适当的刺激来增强这种反应,这项研究暗示基本上可以通过将肠道免疫系统时钟调回更接近幼鼠的状态。

研究结果与治疗衰老相关症状有关,证实了免疫系统老化的影响与肠道微生物群年龄相关变化之间的联系。通过证明对肠道微生物群组成具有积极影响的干预措施的有效性,本研究表明,粪便移植、益生菌、共同居住和饮食都可能是促进健康老龄化的方法。

原始出处:

Marisa Stebegg, et al.Heterochronic faecal transplantation boosts gut germinal centres in aged mice.Nature Communications 10, Article number: 2443 (2019) 

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2087551, encodeId=9769208e55175, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 17 17:15:00 CST 2020, time=2020-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883728, encodeId=c6ce1883e2853, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Sep 17 13:15:00 CST 2019, time=2019-09-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1825051, encodeId=2e60182505163, content=<a href='/topic/show?id=702a5065860' target=_blank style='color:#2F92EE;'>#微生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50658, encryptionId=702a5065860, topicName=微生物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0b7c20, createdName=wjcjjian, createdTime=Wed Nov 06 02:15:00 CST 2019, time=2019-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298853, encodeId=085b12988537d, content=<a href='/topic/show?id=2088816e487' target=_blank style='color:#2F92EE;'>#肠道微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81674, encryptionId=2088816e487, topicName=肠道微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6e43278, createdName=yangjxjc, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1367782, encodeId=c590136e782e9, content=<a href='/topic/show?id=2cee50e22c6' target=_blank style='color:#2F92EE;'>#微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50722, encryptionId=2cee50e22c6, topicName=微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=)]
    2020-04-17 liuli5079
  2. [GetPortalCommentsPageByObjectIdResponse(id=2087551, encodeId=9769208e55175, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 17 17:15:00 CST 2020, time=2020-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883728, encodeId=c6ce1883e2853, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Sep 17 13:15:00 CST 2019, time=2019-09-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1825051, encodeId=2e60182505163, content=<a href='/topic/show?id=702a5065860' target=_blank style='color:#2F92EE;'>#微生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50658, encryptionId=702a5065860, topicName=微生物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0b7c20, createdName=wjcjjian, createdTime=Wed Nov 06 02:15:00 CST 2019, time=2019-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298853, encodeId=085b12988537d, content=<a href='/topic/show?id=2088816e487' target=_blank style='color:#2F92EE;'>#肠道微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81674, encryptionId=2088816e487, topicName=肠道微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6e43278, createdName=yangjxjc, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1367782, encodeId=c590136e782e9, content=<a href='/topic/show?id=2cee50e22c6' target=_blank style='color:#2F92EE;'>#微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50722, encryptionId=2cee50e22c6, topicName=微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=)]
    2019-09-17 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=2087551, encodeId=9769208e55175, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 17 17:15:00 CST 2020, time=2020-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883728, encodeId=c6ce1883e2853, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Sep 17 13:15:00 CST 2019, time=2019-09-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1825051, encodeId=2e60182505163, content=<a href='/topic/show?id=702a5065860' target=_blank style='color:#2F92EE;'>#微生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50658, encryptionId=702a5065860, topicName=微生物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0b7c20, createdName=wjcjjian, createdTime=Wed Nov 06 02:15:00 CST 2019, time=2019-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298853, encodeId=085b12988537d, content=<a href='/topic/show?id=2088816e487' target=_blank style='color:#2F92EE;'>#肠道微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81674, encryptionId=2088816e487, topicName=肠道微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6e43278, createdName=yangjxjc, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1367782, encodeId=c590136e782e9, content=<a href='/topic/show?id=2cee50e22c6' target=_blank style='color:#2F92EE;'>#微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50722, encryptionId=2cee50e22c6, topicName=微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=2087551, encodeId=9769208e55175, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 17 17:15:00 CST 2020, time=2020-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883728, encodeId=c6ce1883e2853, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Sep 17 13:15:00 CST 2019, time=2019-09-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1825051, encodeId=2e60182505163, content=<a href='/topic/show?id=702a5065860' target=_blank style='color:#2F92EE;'>#微生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50658, encryptionId=702a5065860, topicName=微生物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0b7c20, createdName=wjcjjian, createdTime=Wed Nov 06 02:15:00 CST 2019, time=2019-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298853, encodeId=085b12988537d, content=<a href='/topic/show?id=2088816e487' target=_blank style='color:#2F92EE;'>#肠道微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81674, encryptionId=2088816e487, topicName=肠道微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6e43278, createdName=yangjxjc, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1367782, encodeId=c590136e782e9, content=<a href='/topic/show?id=2cee50e22c6' target=_blank style='color:#2F92EE;'>#微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50722, encryptionId=2cee50e22c6, topicName=微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=2087551, encodeId=9769208e55175, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 17 17:15:00 CST 2020, time=2020-04-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883728, encodeId=c6ce1883e2853, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Sep 17 13:15:00 CST 2019, time=2019-09-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1825051, encodeId=2e60182505163, content=<a href='/topic/show?id=702a5065860' target=_blank style='color:#2F92EE;'>#微生物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50658, encryptionId=702a5065860, topicName=微生物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0b7c20, createdName=wjcjjian, createdTime=Wed Nov 06 02:15:00 CST 2019, time=2019-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1298853, encodeId=085b12988537d, content=<a href='/topic/show?id=2088816e487' target=_blank style='color:#2F92EE;'>#肠道微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81674, encryptionId=2088816e487, topicName=肠道微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6e43278, createdName=yangjxjc, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1367782, encodeId=c590136e782e9, content=<a href='/topic/show?id=2cee50e22c6' target=_blank style='color:#2F92EE;'>#微生物群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50722, encryptionId=2cee50e22c6, topicName=微生物群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Wed Jun 12 13:15:00 CST 2019, time=2019-06-12, status=1, ipAttribution=)]

相关资讯

Diabetes Care:1型糖尿病、MODY2和健康对照受试者肠道微生物群的组成和功能有所不同

由此可见,1型糖尿病患者肠道微生物群在分类学和功能水平上不仅与健康受试者不同,而且在根本上与非自身免疫性糖尿病模型有关。未来的纵向研究应旨在评估1型糖尿病高风险患者肠道微生物群的调节能否改变这种自身免疫性疾病的自然史。

Am J Gastroenterol:炎症性肠病患者的遗传风险、失调、宿主基因组和肠道微生物群分层研究

研究证实遗传风险在炎症性肠病患者早期即可得到体现,致病微生物群中毒性因子的表达可能与炎症性肠病的发病机制有关

Crit Care:合生元调节肠道微生物群并减少脓毒症患者的肠炎和呼吸机相关性肺炎

由此可见,预防性合生元治疗可以调节肠道微生物群,并可能对脓毒症患者的肠炎和VAP发病率具有预防作用。

Gut:膳食脂肪对肠道微生物群和粪便代谢产物的影响及其与心脏代谢危险因素的关系

由此可见,饮食处于营养转变状态的健康年轻人的高脂肪摄入似乎与肠道微生物群、粪便代谢组学和血浆促炎因子的不利变化有关,这可能会对长期健康结局产生不利影响。

Toxicol Sci:芦荟甙可能通过引起肠道微生物群组成的变化来发挥毒性作用!

从现有的毒理学研究资料分析,芦荟在食用安全上引起争议的部分是以Aloin(芦荟甙,芦荟植物叶的一个组成部分)为代表的蒽醌类泻素,它主要存在于叶皮内表面,是芦荟诸多功能的重要活性物质,具有健胃、通便利尿、养颜排毒、杀菌、抑制肿瘤等作用,但是毒理学研究显示体外试验可引起细菌、哺乳动物细胞基因突变,因芦荟甙被氧化以后,转化为芦荟大黄素,而芦荟大黄素结构与大黄素相似,含有已知诱变剂1,8二羟基蒽醌结构,有

Nat Med (IF29.886):上海交大瑞金医院王卫庆教授证实,通过肠道微生物群可干预肥胖

近日,国际顶尖期刊Nat Med (IF=29.886)刊发了来自上海交大瑞金医院王卫庆教授的文章:Gut microbiome and serum metabolome alterations in obesity and after weight-loss intervention。主题是:Nat Med (IF=29.886):上海交大瑞金医院王卫庆教授证实,通过肠道微生物群可干预肥胖,

Baidu
map
Baidu
map
Baidu
map