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Science子刊封面文章揭示母乳喂养以及抗生素暴露对婴儿肠道菌群的影响

2016-06-17 佚名 生物谷

近日,来自美国麻省总医院和布洛徳研究所的研究人员对婴儿从出生到三岁这段时间内肠道菌群的变化进行了深度分析,揭示了一些影响肠道菌群的因素,比如生产方式(顺产和剖腹产)以及抗生素暴露(包括多种抗生素治疗的影响)。相关研究结果发表在国际学术期刊Science Translational Medicine上,并且被推荐为本期的封面文章。 这项研究有助于理解肠道菌群如何得以建立以及每个儿童的菌群组合

近日,来自美国麻省总医院和布洛徳研究所的研究人员对婴儿从出生到三岁这段时间内肠道菌群的变化进行了深度分析,揭示了一些影响肠道菌群的因素,比如生产方式(顺产和剖腹产)以及抗生素暴露(包括多种抗生素治疗的影响)。相关研究结果发表在国际学术期刊Science Translational Medicine上,并且被推荐为本期的封面文章。

这项研究有助于理解肠道菌群如何得以建立以及每个儿童的菌群组合如何增加1型糖尿病以及炎症性肠病等疾病的患病风险。

这项研究共包含了39名儿童,研究人员从这些儿童出生开始每月收集他们的粪便,一直持续了36个月,然后对每个样本进行基于RNA的标准测序分析,鉴定肠道菌群的组成,研究人员还对大约25%的样本进行了更加全面的全基因组测序分析进一步揭示肠道菌群中的特定菌株。在整个研究期间,20%的参与者使用了抗生素用以治疗呼吸道感染或耳部感染,接受治疗的次数从9次到15次不等。

研究表明肠道菌群发育过程中的一些特征在所有参与者中都表现一致,一些特定细菌的出现和丰度在一些类似的年龄点出现增加或下降。研究人员还在母乳喂养方面发现了一些与之前研究结果的区别,之前发现相比于配方奶喂养的儿童,长时间母乳喂养会导致婴儿体内Bifidobacterium这种细菌的丰度增加,该研究中所有儿童都进行了一段时间的母乳喂养,研究人员发现母乳喂养时间长度与Bifidobacteria的水平存在一些关联,但是也有一些进行母乳喂养的儿童其体内Bifidobacteria的水平较低。

之前还有研究报道过,对于剖腹生产的儿童其出生后的6个月内Bacteriodes genus丰度很低,在这项最新研究中,虽然也有4名剖腹生产的儿童存在相同特征,但是这种情况在7名顺产的儿童体内也存在。研究人员表示,由于这种特征常与菌群多样性下降有关,因此可能还需要更进一步研究。

研究人员还发现接受过抗生素治疗的儿童其肠道菌群的多样性会发生下降,这种情况在Bacteriodes低水平的儿童体内更加明显。全基因组测序分析表明在受到抗生素暴露的儿童中,细菌种类更少,并且倾向于受到单个菌株的控制,这与未受到过抗生素暴露的儿童有很大差别。分析结果还表明受到抗生素暴露的儿童其肠道菌群会变得不稳定,特别是在抗生素治疗阶段。

研究人员表示这项研究会加深人们对于婴儿肠道菌群自然建立过程的理解,同时使人们更加关注抗生素以及环境因素对婴儿肠道菌群以及特定疾病风险的影响。

原始出处

Moran Yassour1,2, Tommi Vatanen1,3, Heli Siljander4,5,6.Natural history of the infant gut microbiome and impact of antibiotic treatment on bacterial strain diversity and stability.Science Translational Medicine.2016

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1664984, encodeId=40eb166498470, content=<a href='/topic/show?id=c8664008e1a' target=_blank style='color:#2F92EE;'>#喂养#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=40087, encryptionId=c8664008e1a, topicName=喂养)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0ed425881542, createdName=ms1948154235210413, createdTime=Sun Jul 17 18:36:00 CST 2016, time=2016-07-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1299521, encodeId=95f3129952173, content=<a href='/topic/show?id=7a056349485' target=_blank style='color:#2F92EE;'>#母乳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63494, encryptionId=7a056349485, topicName=母乳)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf1b289, createdName=villahu, createdTime=Sun Jun 19 12:36:00 CST 2016, time=2016-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375271, encodeId=1e9413e5271ae, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Jun 19 12:36:00 CST 2016, time=2016-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1392194, encodeId=a47d139219429, content=<a href='/topic/show?id=223081e33b6' target=_blank style='color:#2F92EE;'>#肠道菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81733, encryptionId=223081e33b6, topicName=肠道菌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=aa292500107, createdName=1249897bm37(暂无昵称), createdTime=Sun Jun 19 12:36:00 CST 2016, time=2016-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=90385, encodeId=384890385a0, content=好文章,值得学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=53751677671, createdName=沉心多思, createdTime=Sat Jun 18 18:08:00 CST 2016, time=2016-06-18, status=1, ipAttribution=)]
    2016-06-19 villahu
  3. [GetPortalCommentsPageByObjectIdResponse(id=1664984, encodeId=40eb166498470, content=<a href='/topic/show?id=c8664008e1a' target=_blank style='color:#2F92EE;'>#喂养#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=40087, encryptionId=c8664008e1a, topicName=喂养)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0ed425881542, createdName=ms1948154235210413, createdTime=Sun Jul 17 18:36:00 CST 2016, time=2016-07-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1299521, encodeId=95f3129952173, content=<a href='/topic/show?id=7a056349485' target=_blank style='color:#2F92EE;'>#母乳#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63494, encryptionId=7a056349485, topicName=母乳)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf1b289, createdName=villahu, createdTime=Sun Jun 19 12:36:00 CST 2016, time=2016-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375271, encodeId=1e9413e5271ae, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Jun 19 12:36:00 CST 2016, time=2016-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1392194, encodeId=a47d139219429, content=<a href='/topic/show?id=223081e33b6' target=_blank style='color:#2F92EE;'>#肠道菌#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81733, encryptionId=223081e33b6, topicName=肠道菌)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=aa292500107, createdName=1249897bm37(暂无昵称), createdTime=Sun Jun 19 12:36:00 CST 2016, time=2016-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=90385, encodeId=384890385a0, content=好文章,值得学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=53751677671, createdName=沉心多思, createdTime=Sat Jun 18 18:08:00 CST 2016, time=2016-06-18, status=1, ipAttribution=)]
    2016-06-19 jichang
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    2016-06-18 沉心多思

    好文章,值得学习

    0

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