Nat Commun:妊娠呕吐机制揭密,HCG只是背锅侠?

2018-03-25 MedSci MedSci原创

怀孕本来是一件开心的事情,但随之而来的早孕反应却让人不开心。据统计,0.3-2%的孕妇会出现妊娠剧吐(Hyperemesis Gravidarum,HG)。目前,这种病的病因尚不清楚,但了解背后的遗传机制很有必要。加州大学洛杉矶分校、南加州大学和23andMe等机构的研究人员对23andMe参与者的数据开展了大规模研究,发现这可能是由于胎盘形成和食欲相关的通路发生改变,而与通常认为的激素无关。这项

怀孕本来是一件开心的事情,但随之而来的早孕反应却让人不开心。据统计,0.3-2%的孕妇会出现妊娠剧吐(Hyperemesis Gravidarum,HG)。目前,这种病的病因尚不清楚,但了解背后的遗传机制很有必要。


加州大学洛杉矶分校、南加州大学和23andMe等机构的研究人员对23andMe参与者的数据开展了大规模研究,发现这可能是由于胎盘形成和食欲相关的通路发生改变,而与通常认为的激素无关。这项成果于本周发表在《Nature Communications》上。文章的通讯作者、加州大学洛杉矶分校的血液学和肿瘤学研究人员Marlena Fejzo说:“人们一直认为妊娠激素、人绒毛膜促性腺激素或雌激素可能是引起极度恶心和呕吐的罪魁祸首,但我们没有发现支持这一点的证据。”

过去的研究表明,高达2%的怀孕伴随着妊娠剧吐。英国王妃凯特在怀孕时也出现了严重的孕吐反应,无法出席活动,甚至需要住院治疗。不过,目前并没有有效的孕吐预防和治疗策略。于是,研究人员深入研究了疾病的遗传基础,希望能够减轻对孕妇和胎儿健康的不良影响。一般认为,妊娠呕吐的主要原因是因为HCG增高所致,引发消化道上HCG受体激活,从而导致呕吐。

在研究的第一阶段,研究人员使用了23andMe参与者的数据,其中包括1,306名孕吐严重需要治疗的女性和15,756名没经历过恶心和呕吐的女性。他们利用Illumina定制芯片开展基因分型。
之后,他们将重点放在4号和19号染色体上的两个位点,并比较了53,731名女性的SNP模式,这些女性的恶心和呕吐程度分别为轻微、中度、严重、非常严重或不存在。他们发现与此相关的是4号染色体上IGFBP7附近的区域以及19号染色体上的GDF15。通过基因表达、调控线索和计算机功能分析,研究人员进一步挖掘了这些位点,认为GDF15和IGFBP7是最可疑的基因。GDF15被认为可抑制促炎性细胞因子的产生,以促进胎盘形成和维持妊娠。IGFBP7则参与了着床和脱膜化。这强调了妊娠恶心和呕吐与胎盘形成、食欲调节及慢性消耗的通路有关。“由于GDF15和IGFBP7的水平在胎盘形成时上调,在流产之前下调,所以现在应该研究孕妇GDF15和IGFBP7的血清浓度,”作者写道。“如果证明GDF15和IGFBP7是相关的,那么靶向这些蛋白的药物可能在治疗妊娠剧吐上起作用。”

原始出处:

Fejzo MS, Sazonova OV, Sathirapongsasuti JF, Hallgrímsdóttir IB, Vacic V, MacGibbon KW, Schoenberg FP, Mancuso N, Slamon DJ, Mullin PM; 23andMe Research Team. Placenta and appetite genes GDF15 and IGFBP7 are associated with hyperemesis gravidarum. Nat Commun. 2018 Mar 21;9(1):1178. doi: 10.1038/s41467-018-03258-0.

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 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2087311, encodeId=be9a208e311ae, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Thu Jan 10 08:18:00 CST 2019, time=2019-01-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882927, encodeId=4b75188292efd, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Dec 09 16:18:00 CST 2018, time=2018-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=300280, encodeId=98e930028086, content=学习了.期望更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Tue Mar 27 21:56:11 CST 2018, time=2018-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1414660, encodeId=d8e41414660fb, content=<a href='/topic/show?id=04f98552df' target=_blank style='color:#2F92EE;'>#hCG#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8552, encryptionId=04f98552df, topicName=hCG)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ec053077747, createdName=zgwhgch, createdTime=Tue Mar 27 01:18:00 CST 2018, time=2018-03-27, status=1, ipAttribution=)]
    2019-01-10 liuli5079
  2. [GetPortalCommentsPageByObjectIdResponse(id=2087311, encodeId=be9a208e311ae, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Thu Jan 10 08:18:00 CST 2019, time=2019-01-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882927, encodeId=4b75188292efd, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Dec 09 16:18:00 CST 2018, time=2018-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=300280, encodeId=98e930028086, content=学习了.期望更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Tue Mar 27 21:56:11 CST 2018, time=2018-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1414660, encodeId=d8e41414660fb, content=<a href='/topic/show?id=04f98552df' target=_blank style='color:#2F92EE;'>#hCG#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8552, encryptionId=04f98552df, topicName=hCG)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ec053077747, createdName=zgwhgch, createdTime=Tue Mar 27 01:18:00 CST 2018, time=2018-03-27, status=1, ipAttribution=)]
    2018-12-09 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=2087311, encodeId=be9a208e311ae, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Thu Jan 10 08:18:00 CST 2019, time=2019-01-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882927, encodeId=4b75188292efd, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Dec 09 16:18:00 CST 2018, time=2018-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=300280, encodeId=98e930028086, content=学习了.期望更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Tue Mar 27 21:56:11 CST 2018, time=2018-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1414660, encodeId=d8e41414660fb, content=<a href='/topic/show?id=04f98552df' target=_blank style='color:#2F92EE;'>#hCG#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8552, encryptionId=04f98552df, topicName=hCG)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ec053077747, createdName=zgwhgch, createdTime=Tue Mar 27 01:18:00 CST 2018, time=2018-03-27, status=1, ipAttribution=)]
    2018-03-27 明崖

    学习了.期望更多研究

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=2087311, encodeId=be9a208e311ae, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Thu Jan 10 08:18:00 CST 2019, time=2019-01-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882927, encodeId=4b75188292efd, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Dec 09 16:18:00 CST 2018, time=2018-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=300280, encodeId=98e930028086, content=学习了.期望更多研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=73441710184, createdName=明崖, createdTime=Tue Mar 27 21:56:11 CST 2018, time=2018-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1414660, encodeId=d8e41414660fb, content=<a href='/topic/show?id=04f98552df' target=_blank style='color:#2F92EE;'>#hCG#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8552, encryptionId=04f98552df, topicName=hCG)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ec053077747, createdName=zgwhgch, createdTime=Tue Mar 27 01:18:00 CST 2018, time=2018-03-27, status=1, ipAttribution=)]
    2018-03-27 zgwhgch