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Sci Rep:肝雌激素受体α对于调节男性的糖原异常和脂质代谢至关重要!

2017-05-12 MedSci MedSci原创

在动物模型和人类中,雌激素的作用受损与代谢综合征的特征密切相关。近期,一项发表在杂志Sci Rep上的研究旨在评估成年雄性小鼠中,肝脏雌激素作用的破坏是否可以重述代谢综合征的相关表现,以了解表型的基础机制。研究者们发现,17β-雌二醇(E2)抑制肝糖异生基因如磷酸烯醇丙酮酸羧激酶1(Pck-1)和葡萄糖-6-磷酸酶(G6Pase),并且在缺乏肝雌激素受体α(Esr1)(LERKO小鼠)的小鼠中不存

在动物模型和人类中,雌激素的作用受损与代谢综合征的特征密切相关。


近期,一项发表在杂志Sci Rep上的研究旨在评估成年雄性小鼠中,肝脏雌激素作用的破坏是否可以重述代谢综合征的相关表现,以了解表型的基础机制。

研究者们发现,17β-雌二醇(E2)抑制肝糖异生基因如磷酸烯醇丙酮酸羧激酶1(Pck-1)和葡萄糖-6-磷酸酶(G6Pase),并且在缺乏肝雌激素受体α(Esr1)(LERKO小鼠)的小鼠中不存在这种作用。雄性LERKO小鼠显示出肝脏糖原生成活性的升高和空腹高血糖。

此项研究还观察到,雄性LERKO小鼠肝脂质沉积和甘油三酯水平升高,这是由脂肪酸合成酶(Fas)和乙酰辅酶A羧化酶(Acc1)的mRNA水平升高反映的肝脂肪生成增加所引起的。

通过ChIP测定显示雌二醇(E2)诱导ESR1与Pck-1、G6Pase、Fas和Acc1启动子结合。与对照组相比,LERKO小鼠的代谢表型显示基础代谢率和喂养均较低。

此外,LERKO小鼠的呼吸频率显着低于对照组,表明脂质氧化增加。

此项研究表明,肝脏E2/ESR1信号在维持男性糖原异常和脂质代谢中起关键作用。

原始出处:
Qiu S, Vazquez JT, et al. Hepatic estrogen receptor α is critical for regulation of gluconeogenesis and lipid metabolism in males. Sci Rep. 2017 May 10;7(1):1661. doi: 10.1038/s41598-017-01937-4.

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    2017-05-18 jyzxjiangqin

    肝雌激素受体a对于男性的糖原异常的调节。

    0

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    2017-05-13 绛珠草小姐

    学习了,谢谢

    0

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    2017-05-13 dhzzm

    学习了分享了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=199489, encodeId=05571994897d, content=肝雌激素受体a对于男性的糖原异常的调节。, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160806/IMG57A5698BDB0244113.jpg, createdBy=32a91358059, createdName=jyzxjiangqin, createdTime=Thu May 18 07:26:26 CST 2017, time=2017-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1353383, encodeId=2a1e1353383e6, content=<a href='/topic/show?id=c4d484423fa' target=_blank style='color:#2F92EE;'>#脂质代谢#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84423, encryptionId=c4d484423fa, topicName=脂质代谢)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun May 14 09:40:00 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503476, encodeId=157515034e6ef, content=<a href='/topic/show?id=59d798e61f0' target=_blank style='color:#2F92EE;'>#雌激素受体#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=98761, encryptionId=59d798e61f0, topicName=雌激素受体)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae6c9649886, createdName=surilei, createdTime=Sun May 14 09:40:00 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197607, encodeId=84a619e607d9, content=学习了,谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/101296147/1A51842815047D40BFDAA8D69AA8E519/100, createdBy=fd7f2029163, createdName=绛珠草小姐, createdTime=Sat May 13 15:43:29 CST 2017, time=2017-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197491, encodeId=68e519e49132, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Sat May 13 09:42:14 CST 2017, time=2017-05-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197275, encodeId=5f2819e27572, content=希望有更多的发现和突破!, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160914/IMG57D82E721DB581755.jpg, createdBy=4fc81933929, createdName=明天会更好!, createdTime=Sat May 13 00:20:13 CST 2017, time=2017-05-13, status=1, ipAttribution=)]
    2017-05-13 明天会更好!

    希望有更多的发现和突破!

    0

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