Baidu
map

Science:一种涉及基因修饰的人类心脏病的寡基因遗传

2019-07-12 Gladiator MedSci原创

研究人员发现1病例在妊娠24周时胎儿死亡。初步尸检结果表明,死亡原因是肺发育不良所导致。然而,研究人员对组织学切片的检查显示,胎儿双心室不致密,这是基于双心室心肌壁的深凹、右心室扩张和广泛的纤维化造成的(图1B)。直系亲心脏活体成像暴露了以前未被发现的证据,4岁的兄弟妹LVNC及其父亲的轻微LVNC迹象。研究对象的祖父有心律失常,但类似于大家庭成员,未发现心脏的功能或结构异常(图1 c)。总的来说

研究人员发现1病例在妊娠24周时胎儿死亡。初步尸检结果表明,死亡原因是肺发育不良所导致。然而,研究人员对组织学切片的检查显示,胎儿双心室不致密,这是基于双心室心肌壁的深凹、右心室扩张和广泛的纤维化造成的(1B)。直系亲心脏活体成像暴露了以前未被发现的证据,4岁的兄弟妹LVNC及其父亲的轻微LVNC迹象。研究对象的祖父有心律失常,但类似于大家庭成员,未发现心脏的功能或结构异常(图1 c)。总的来说,这些发现表明LVNC从父亲垂直传播,明显增加了疾病的严重程度和后代发病年龄。在发现上述病理学的基础上,为进一步研究该家族LVNC的潜在遗传原因,研究人员对该指示个案的直系亲属进行了全外显子组测序。并且推断,由于所有三个后代的外显率,个体的新生事件不太可能是疾病的原因,从而提出一种遗传变异假说。最初关注的是遗传自父亲的私有和/或罕见的(小等位基因频率,MAF < 0.005)外显子非同义变异,并确定了30个目标单核苷酸变异(SNVs)(2A,左)。这些变异中有8种经预测是有害的,但只有2种在心脏组织转录本中富集。研究人员进一步确定了3个感兴趣的基因,即MKL2, MYH7NKX2-5,并提出了它们可能一起产生便易导致了LVNC

本研究工作表明,对snv相关表型的实验探索是一个有价值的努力方向,因为它可以帮助我们阐明复杂疾病的机制。

原始出处:

Casey A. GiffordOligogenic inheritance of a human heart disease involving a genetic modifier

本文系梅斯医学(MedSci)原创编译整理,转载需授权!


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=369733, encodeId=801a369e33d5, content=学习了,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Tue Jul 16 01:23:38 CST 2019, time=2019-07-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375957, encodeId=08df13e595795, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, 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 Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569366, encodeId=6f5815693663c, content=<a href='/topic/show?id=1c562e42646' target=_blank style='color:#2F92EE;'>#修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27426, encryptionId=1c562e42646, topicName=修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=29c615505859, createdName=zhangyxzsh, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599936, encodeId=5cc2159993653, content=<a href='/topic/show?id=7a7d4168e3a' target=_blank style='color:#2F92EE;'>#基因修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41687, encryptionId=7a7d4168e3a, topicName=基因修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=069c18767911, createdName=apoenzyme, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=)]
    2019-07-16 130****4638

    学习了,谢谢分享。

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=369733, encodeId=801a369e33d5, content=学习了,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Tue Jul 16 01:23:38 CST 2019, time=2019-07-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375957, encodeId=08df13e595795, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, 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 Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569366, encodeId=6f5815693663c, content=<a href='/topic/show?id=1c562e42646' target=_blank style='color:#2F92EE;'>#修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27426, encryptionId=1c562e42646, topicName=修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=29c615505859, createdName=zhangyxzsh, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599936, encodeId=5cc2159993653, content=<a href='/topic/show?id=7a7d4168e3a' target=_blank style='color:#2F92EE;'>#基因修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41687, encryptionId=7a7d4168e3a, topicName=基因修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=069c18767911, createdName=apoenzyme, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=)]
    2019-07-14 jichang
  3. [GetPortalCommentsPageByObjectIdResponse(id=369733, encodeId=801a369e33d5, content=学习了,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Tue Jul 16 01:23:38 CST 2019, time=2019-07-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375957, encodeId=08df13e595795, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, 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 Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569366, encodeId=6f5815693663c, content=<a href='/topic/show?id=1c562e42646' target=_blank style='color:#2F92EE;'>#修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27426, encryptionId=1c562e42646, topicName=修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=29c615505859, createdName=zhangyxzsh, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599936, encodeId=5cc2159993653, content=<a href='/topic/show?id=7a7d4168e3a' target=_blank style='color:#2F92EE;'>#基因修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41687, encryptionId=7a7d4168e3a, topicName=基因修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=069c18767911, createdName=apoenzyme, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=)]
    2019-07-14 zhangyxzsh
  4. [GetPortalCommentsPageByObjectIdResponse(id=369733, encodeId=801a369e33d5, content=学习了,谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Tue Jul 16 01:23:38 CST 2019, time=2019-07-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375957, encodeId=08df13e595795, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, 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 Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1569366, encodeId=6f5815693663c, content=<a href='/topic/show?id=1c562e42646' target=_blank style='color:#2F92EE;'>#修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27426, encryptionId=1c562e42646, topicName=修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=29c615505859, createdName=zhangyxzsh, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599936, encodeId=5cc2159993653, content=<a href='/topic/show?id=7a7d4168e3a' target=_blank style='color:#2F92EE;'>#基因修饰#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=41687, encryptionId=7a7d4168e3a, topicName=基因修饰)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=069c18767911, createdName=apoenzyme, createdTime=Sun Jul 14 10:17:00 CST 2019, time=2019-07-14, status=1, ipAttribution=)]

相关资讯

美国心脏协会专家称,喝红酒与预防心脏病不是因果关系

你是否确定你在吃的东西是否有利于健康?吃还是抛弃? 近期,美国心脏协会指出,适量饮用红酒与心脏健康有一定关系,但并没有研究证实饮酒可预防心脏病。 南加州大学Robert Kloner教授表示,目前尚不清楚红酒与这种益处是否直接相关,也不知道是否有其他因素起作用。

Radiology Cardiothorax Imaging:这种影像学检查可预测心脏死亡,尤其对于糖尿病患者

有研究者报告,在接受应力性心肌灌注PET扫描检查的患者中,其结果异常程度增加与心脏死亡风险增加有关。而且,这种相关性在糖尿病患者中最为明显。

教育程度低增加心脏病风险,是因为这些危险因素!

心血管疾病是世界范围内的主要死因,每年约有1700多万人死于此病。曾有学者发现,每额外接受3.6年教育,患冠心病的风险降低了约1/3。然而,教育机会在人群中并不公平,而且很难对教育程度进行干预。现有研究表明,BMI、收缩压和吸烟行为部分解释了与教育程度有关的心血管疾病风险差异。然而,这些研究依赖于观察性的中介分析(mediation analyses),可能会受到偏倚的影响。传统的研究方法使用

Ann Intern Med:白大衣高血压也需要治疗?Meta分析称,未治疗者心脏病死亡风险增倍

近日,《内科学年鉴》杂志发表的一项入选27项研究的Meta分析表明,白大衣高血压患者如未接受治疗,不仅比血压正常者容易发生心脏病,而且死于心脏病的风险增加了一倍。

Pediatrics:加拿大研究称,儿童3岁开始加强运动,可预防心脏病

加拿大麦克马斯特大学研究人员开展的一项研究结果表明,学龄前儿童的体力活动对未来心血管健康有明显影响,是预防成年后心脏病的关键。

Circulation:高敏性血浆肌钙蛋白I(hs-TnI)对普通人群心脏病风险的预测价值

高敏感性试验(hs-TnI)测定的血浆肌钙蛋白I是否与未发生过CVD的社区人群突发心血管疾病(CVD)的发生率和死亡率有关?ARIC研究在8121位既往无CVD的54岁-74岁的普通人群中研究hs-TnI与冠心病(CHD;心肌梗死和致命性CHD)、缺血性脑卒中、动脉粥样硬化CVD(CHD和卒中)、心衰住院和整体CVD(动脉粥样硬化CVD和心衰)以及全因死亡率的关系。中位随访15年。获得了85%的研

Baidu
map
Baidu
map
Baidu
map