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Sci Signal:孕期发烧致畸机制大揭秘!退烧药有奇效!

2017-10-11 vironia 转化医学网

众所周知,孕妇在妊娠前三个月的发烧会增加胎儿心脏缺陷和唇腭裂等面部畸形疾病风险,虽然有科学家认为发烧过程中可能存在的某些病原导致了胎儿畸形,但发烧引起这些问题的内在机制却尚未被科学家所阐明。


众所周知,孕妇在妊娠前三个月的发烧会增加胎儿心脏缺陷和唇腭裂等面部畸形疾病风险,虽然有科学家认为发烧过程中可能存在的某些病原导致了胎儿畸形,但发烧引起这些问题的内在机制却尚未被科学家所阐明。

近日,杜克大学科学家研究发现孕妇妊娠期发烧引起胎儿疾病的直接原因并不是发烧本身。基于大量的动物胚胎实验,研究人员发现胚胎内的神经嵴细胞对温度的变化相对于其他细胞更为敏感,而神经嵴细胞同时也会在胚胎的发育过程中最终发育成为胎儿的心脏以及面部与颌骨的关键组成部分。

该研究对应文章则发表于最新上线的Science Signaling杂志,名为"Temperature-activated ion channels in neural crest cells confer maternal fever–associated birth defects。"

“我们发现神经嵴细胞内含有通常在感觉神经元中才会出现的温度敏感离子通道,”文章的主要作者Eric Benner博士表示,“当你把手放在一杯热水中的时候,这些离子通道就会告诉你的身体温度已经发生了改变。”

基于无创的磁极技术,杜克大学的科学家们在心脏与面部发育期的动物胚胎神经嵴细胞中两种温度敏感离子通道TRPV1与TRPV4上建立了类似于母体发烧所引起的改变。当这些神经嵴细胞经历科学家模拟的瞬时发热病症时,这些胚胎就开始发展出颅面不规则与心脏缺陷等疾病形状。

同样,Eric Benner博士团队的研究结果也表明妊娠期的头三个月使用乙酰氨基酚退烧也可以防止一部分类似原因带来的出生缺陷。虽然大多数临床医生并不会推荐孕妇在妊娠期服用药物,但可能有益于服用扑热息痛以减少发烧的乙酰氨基酚等退烧药仍然应该被妇产科医生纳入考虑范围。

同时,Benner博士强调如布洛芬和阿司匹林等非甾体抗炎药(NSAIDs)也可以减少发烧,但有些NSAIDs在怀孕后期不能使用。虽然长期服用乙酰氨基酚在关节炎等慢性病管理层面仍然存在争议,但Benner博士仍然认为妇产科医生应该综合考虑到出生缺陷等重大问题,为产妇制定更为完善的药物方案。

“我们希望可以让更多的女性了解妊娠期发烧的危险,作为出生缺陷的风险因素,广大女性朋友应该认识到在妊娠期发烧的时候不应该硬扛,应该采取积极的退烧措施。” 文章的主要作者Eric Benner博士表示。

原始出处:

Mary R. Hutson1,*, Anna L. Keyte,et al.Temperature-activated ion channels in neural crest cells confer maternal fever–associated birth defects.Sci. Signal.  10 Oct 2017:Vol. 10, Issue 500, eaal4055 DOI: 10.1126/scisignal.aal4055

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    2018-09-11 楚秀娟
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    2017-11-15 yaanren
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    2017-10-13 ssnine
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    2017-10-11 thlabcde

    好资料有创新!

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2036158, encodeId=10e2203615824, content=<a href='/topic/show?id=ae7816304dc' target=_blank style='color:#2F92EE;'>#Sign#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16304, encryptionId=ae7816304dc, topicName=Sign)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e9ed371, createdName=楚秀娟, createdTime=Tue Sep 11 21:53:00 CST 2018, time=2018-09-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1793982, encodeId=b5331e939823d, content=<a href='/topic/show?id=7b3d1630617' target=_blank style='color:#2F92EE;'>#Signal#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16306, encryptionId=7b3d1630617, topicName=Signal)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Wed Nov 15 09:53:00 CST 2017, time=2017-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1376880, encodeId=6f1813e688065, content=<a href='/topic/show?id=ddc13e87938' target=_blank style='color:#2F92EE;'>#发烧#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37879, encryptionId=ddc13e87938, topicName=发烧)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=25c8396, createdName=ssnine, createdTime=Fri Oct 13 11:53:00 CST 2017, time=2017-10-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1436931, encodeId=50b51436931d4, content=<a href='/topic/show?id=7ce5946e392' target=_blank style='color:#2F92EE;'>#退烧药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=94673, encryptionId=7ce5946e392, topicName=退烧药)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Fri Oct 13 11:53:00 CST 2017, time=2017-10-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=252043, encodeId=fc6e25204337, content=好资料有创新!, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=92191944782, createdName=thlabcde, createdTime=Wed Oct 11 21:54:06 CST 2017, time=2017-10-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=252040, encodeId=0a902520401b, content=好文章.学习了., beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Wed Oct 11 21:49:31 CST 2017, time=2017-10-11, status=1, ipAttribution=)]
    2017-10-11 1e0f8808m18(暂无匿称)

    好文章.学习了.

    0

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