JAMA Psychiatry:遗传,而非环境因素是自闭症谱系障碍风险增加的主要原因

2020-05-11 MedSci原创 MedSci原创

研究认为,随着时间的推移,自闭症谱系障碍和自闭症特征随环境因素变化的证据不足,遗传因素的作用始终大于环境因素。环境因素不能解释自闭症患病率的增加

近年来,自闭症谱系障碍(ASDs)的发病率明显增加,有学者认为环境变化对ASD发病率增加有显著影响,近日研究人员评估了遗传和环境因素与ASD和自闭症特征相关重要性的变化。
 
研究使用了瑞典双胞胎登记(STR;参与者出生于1982年1月至2008年12月)和瑞典的儿童和青少年双胞胎研究(CATSS;参与者出生于1992年1月至2008年12月)数据。每个样本被分成几个出生队列,涵盖1982年至1991年(仅限STR)、1992-1995年、1996-1999年、2000-2003年和2004-2008年。研究人员评估了自闭症特征基因和环境差异是否在不同出生年队列之间发生了变化,并检验了基因和环境对自闭症特征的相对影响是否在不同出生队列之间发生了变化。
 
在STR中有22678对双胞胎(5922对女性双胞胎 [26.1%]、5563男性双胞胎[24.5%]和11193对异性双胞胎[49.4%]),CATSS中有15280对双胞胎(4880对女性双胞胎[31.9%]、5092对男性双胞胎[33.3%]、5308对异性双胞胎[34.7%])。STR中ASD诊断的遗传率为0.88-0.97。CATSS筛查诊断的遗传力从0.75-0.93不等。随着时间的推移,自闭症特征的方差有所增加,这与遗传和环境方差的增加有关,随着时间的推移,总方差从0.95增加到1.17。
 
研究认为,随着时间的推移,自闭症谱系障碍和自闭症特征随环境因素变化的证据不足,遗传因素的作用始终大于环境因素。环境因素不能解释自闭症患病率的增加。
 
原始出处:
 
Mark J. Taylor et al. Etiology of Autism Spectrum Disorders and Autistic Traits Over Time. JAMA Psychiatry. May 06,2020.

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    2020-05-13 xiongke014
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    2020-05-13 一天没事干

    很好的学习机会

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1792168, encodeId=9bc11e92168b8, content=<a href='/topic/show?id=696a14818df' target=_blank style='color:#2F92EE;'>#Psychiatry#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14818, encryptionId=696a14818df, topicName=Psychiatry)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c192448, createdName=diushouji, createdTime=Mon Nov 30 02:24:50 CST 2020, time=2020-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1313128, encodeId=559c1313128f4, content=<a href='/topic/show?id=454286386a1' target=_blank style='color:#2F92EE;'>#自闭症谱系障碍#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86386, encryptionId=454286386a1, topicName=自闭症谱系障碍)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ec25412, createdName=yangpeizhi, createdTime=Wed May 13 10:24:50 CST 2020, time=2020-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1527777, encodeId=916e152e77727, content=<a href='/topic/show?id=68b5863e5d2' target=_blank style='color:#2F92EE;'>#自闭#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86375, encryptionId=68b5863e5d2, topicName=自闭)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=159511872623, createdName=xiongke014, createdTime=Wed May 13 10:24:50 CST 2020, time=2020-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1540431, encodeId=2882154043145, content=<a href='/topic/show?id=bb866843190' target=_blank style='color:#2F92EE;'>#环境因素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=68431, encryptionId=bb866843190, topicName=环境因素)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c9cd13243820, createdName=zengjiayao, createdTime=Wed May 13 10:24:50 CST 2020, time=2020-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=382770, encodeId=24b6382e7043, content=很好的学习机会, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/04/12/cd30eefc465f70dc4dad89bd57479781.jpg, createdBy=02be2318568, createdName=一天没事干, createdTime=Wed May 13 08:28:45 CST 2020, time=2020-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1036088, encodeId=bab6103608844, content=顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Mon May 11 22:24:50 CST 2020, time=2020-05-11, status=1, ipAttribution=)]
    2020-05-11 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

    0

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