Cell Metabolism:延胡索酸盐可降低心脏病危害

2012-03-09 MedSci MedSci原创

近日,英国一项最新研究称,心脏病患者服用延胡索酸盐也许可以降低病发时对心脏组织造成的损害,其效果已经在动物实验中得到证实,并且这种物质以前在其他一些医学试验中已被证明对人体是安全的。 英国牛津大学等机构研究人员在新一期《细胞代谢》(Cell Metabolism)上报告说,让一些患有心脏病的实验鼠服用了延胡索酸盐,结果它们心脏病发作后心脏组织受损的比例只有9.3%。与此形成对比的是,那些没有

近日,英国一项最新研究称,心脏病患者服用延胡索酸盐也许可以降低病发时对心脏组织造成的损害,其效果已经在动物实验中得到证实,并且这种物质以前在其他一些医学试验中已被证明对人体是安全的。

英国牛津大学等机构研究人员在新一期《细胞代谢》(Cell Metabolism)上报告说,让一些患有心脏病的实验鼠服用了延胡索酸盐,结果它们心脏病发作后心脏组织受损的比例只有9.3%。与此形成对比的是,那些没有服用延胡索酸盐的实验鼠在心脏病发作后,心脏组织受损的比例高达36.9%。

据介绍,延胡索酸盐是一种简单的化合物,以前曾用在一些治疗多发性硬化症和牛皮癣的医学试验中,已经被证明对人体是安全的。

研究人员认为,延胡索酸盐能够降低心脏病损害的原因是它可以帮助机体组织应对缺氧环境。过去曾有研究显示,有些海豹可以下潜到氧气稀少的海洋深处,这时它们的身体就会利用延胡索酸盐来帮助应对缺氧环境。而心脏病发作造成损害的原因是,由于血管栓塞等原因导致某些心脏组织供血不足,相应组织如果缺氧太久就会死亡,延胡索酸盐应该是帮助缓解了这个过程。

领导研究的霍曼·阿什拉芬说,延胡索酸盐除了已被证明安全外,还有一大优点就是廉价。如果进一步的人类临床试验能够证实它在减少心脏病损害方面的效果,它就有望能被推广成一种可普及的药物。

Fumarate Is Cardioprotective via Activation of the Nrf2 Antioxidant Pathway

Houman Ashrafian, Gabor Czibik, Mohamed Bellahcene, Dunja Aksentijevi?, Anthony C. Smith, Sarah J. Mitchell, Michael S. Dodd, Jennifer Kirwan, Jonathan J. Byrne, Christian Ludwig, Henrik Isackson, Arash Yavari, Nicolaj B. St?ttrup, Hussain Contractor, Thomas J. Cahill, Natasha Sahgal, Daniel R. Ball, Rune I.D. Birkler, Iain Hargreaves, Daniel A. Tennant, John Land, Craig A. Lygate, Mogens Johannsen, Rajesh K. Kharbanda, Stefan Neubauer, Charles Redwood, Rafael de Cabo, Ismayil Ahmet

The citric acid cycle (CAC) metabolite fumarate has been proposed to be cardioprotective; however, its mechanisms of action remain to be determined. To augment cardiac fumarate levels and to assess fumarate's cardioprotective properties, we generated fumarate hydratase (Fh1) cardiac knockout (KO) mice. These fumarate-replete hearts were robustly protected from ischemia-reperfusion injury (I/R). To compensate for the loss of Fh1 activity, KO hearts maintain ATP levels in part by channeling amino acids into the CAC. In addition, by stabilizing the transcriptional regulator Nrf2, Fh1 KO hearts upregulate protective antioxidant response element genes. Supporting the importance of the latter mechanism, clinically relevant doses of dimethylfumarate upregulated Nrf2 and its target genes, hence protecting control hearts, but failed to similarly protect Nrf2-KO hearts in an in vivo model of myocardial infarction. We propose that clinically established fumarate derivatives activate the Nrf2 pathway and are readily testable cytoprotective agents.

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    2012-06-14 维他命
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    2012-09-21 guojianrong
  5. [GetPortalCommentsPageByObjectIdResponse(id=1958679, encodeId=542919586e9cc, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Thu Jun 14 06:48:00 CST 2012, time=2012-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868466, encodeId=f76a18684667d, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Feb 18 13:48:00 CST 2013, time=2013-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1952586, encodeId=215f19525863d, content=<a href='/topic/show?id=14ff49513ce' target=_blank style='color:#2F92EE;'>#延胡索酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49513, encryptionId=14ff49513ce, topicName=延胡索酸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=39a0295, createdName=kksonne, createdTime=Mon Dec 10 23:48:00 CST 2012, time=2012-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1887314, encodeId=57e5188e31475, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Fri Sep 21 15:48:00 CST 2012, time=2012-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895617, encodeId=bdf6189561e9b, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Mon Nov 26 10:48:00 CST 2012, time=2012-11-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1577135, encodeId=d3ac15e71354f, content=<a href='/topic/show?id=d86d1159e36' target=_blank style='color:#2F92EE;'>#Metabolism#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11597, encryptionId=d86d1159e36, topicName=Metabolism)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun Mar 11 12:48:00 CST 2012, time=2012-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1597909, encodeId=9565159e909d0, content=<a href='/topic/show?id=6c6f1e62c5' target=_blank style='color:#2F92EE;'>#ABO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1762, encryptionId=6c6f1e62c5, topicName=ABO)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b6c918580135, createdName=闆锋旦, createdTime=Sun Mar 11 12:48:00 CST 2012, time=2012-03-11, status=1, ipAttribution=)]
    2012-11-26 一闲
  6. [GetPortalCommentsPageByObjectIdResponse(id=1958679, encodeId=542919586e9cc, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Thu Jun 14 06:48:00 CST 2012, time=2012-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868466, encodeId=f76a18684667d, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Feb 18 13:48:00 CST 2013, time=2013-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1952586, encodeId=215f19525863d, content=<a href='/topic/show?id=14ff49513ce' target=_blank style='color:#2F92EE;'>#延胡索酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49513, encryptionId=14ff49513ce, topicName=延胡索酸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=39a0295, createdName=kksonne, createdTime=Mon Dec 10 23:48:00 CST 2012, time=2012-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1887314, encodeId=57e5188e31475, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Fri Sep 21 15:48:00 CST 2012, time=2012-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895617, encodeId=bdf6189561e9b, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Mon Nov 26 10:48:00 CST 2012, time=2012-11-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1577135, encodeId=d3ac15e71354f, content=<a href='/topic/show?id=d86d1159e36' target=_blank style='color:#2F92EE;'>#Metabolism#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11597, encryptionId=d86d1159e36, topicName=Metabolism)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun Mar 11 12:48:00 CST 2012, time=2012-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1597909, encodeId=9565159e909d0, content=<a href='/topic/show?id=6c6f1e62c5' target=_blank style='color:#2F92EE;'>#ABO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1762, encryptionId=6c6f1e62c5, topicName=ABO)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b6c918580135, createdName=闆锋旦, createdTime=Sun Mar 11 12:48:00 CST 2012, time=2012-03-11, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=1958679, encodeId=542919586e9cc, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Thu Jun 14 06:48:00 CST 2012, time=2012-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868466, encodeId=f76a18684667d, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Feb 18 13:48:00 CST 2013, time=2013-02-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1952586, encodeId=215f19525863d, content=<a href='/topic/show?id=14ff49513ce' target=_blank style='color:#2F92EE;'>#延胡索酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49513, encryptionId=14ff49513ce, topicName=延胡索酸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=39a0295, createdName=kksonne, createdTime=Mon Dec 10 23:48:00 CST 2012, time=2012-12-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1887314, encodeId=57e5188e31475, content=<a href='/topic/show?id=d56611584ec' target=_blank style='color:#2F92EE;'>#Meta#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11584, encryptionId=d56611584ec, topicName=Meta)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8f4110, createdName=guojianrong, createdTime=Fri Sep 21 15:48:00 CST 2012, time=2012-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1895617, encodeId=bdf6189561e9b, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Mon Nov 26 10:48:00 CST 2012, time=2012-11-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1577135, encodeId=d3ac15e71354f, content=<a href='/topic/show?id=d86d1159e36' target=_blank style='color:#2F92EE;'>#Metabolism#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11597, encryptionId=d86d1159e36, topicName=Metabolism)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Sun Mar 11 12:48:00 CST 2012, time=2012-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1597909, encodeId=9565159e909d0, content=<a href='/topic/show?id=6c6f1e62c5' target=_blank style='color:#2F92EE;'>#ABO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1762, encryptionId=6c6f1e62c5, topicName=ABO)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b6c918580135, createdName=闆锋旦, createdTime=Sun Mar 11 12:48:00 CST 2012, time=2012-03-11, status=1, ipAttribution=)]
    2012-03-11 闆锋旦