Sci Rep:常用止痛药造成严重肝损伤的原因被揭示

2017-02-04 生物谷 生物谷

科学家们已经逐渐认识到常用止痛药是如何造成肝损伤的。他们的发现也许为了解过量用药的毒副作用提供了基础,而这些毒副作用往往难以治愈甚至是致命的,也是西方国家急性肝损伤的主要诱因之一,因此这项发现也许会促使探索药物损伤治疗方法的研究。 来自爱丁堡大学的科学家们研究了醋氨酚对人和小鼠肝细胞的影响,检测发现在某些情况下醋氨酚会通过损伤肝脏中相邻细胞

科学家们已经逐渐认识到常用止痛药是如何造成肝损伤的。他们的发现也许为了解过量用药的毒副作用提供了基础,而这些毒副作用往往难以治愈甚至是致命的,也是西方国家急性肝损伤的主要诱因之一,因此这项发现也许会促使探索药物损伤治疗方法的研究。

来自爱丁堡大学的科学家们研究了醋氨酚对人和小鼠肝细胞的影响,检测发现在某些情况下醋氨酚会通过损伤肝脏中相邻细胞间的重要连接结构(紧密连接,细胞膜间的一种重要连接方式)而导致肝损伤。当这些紧密连接被扰乱之后,肝组织会受损,肝细胞无法正常工作,甚至会死亡。此前已知这种细胞损伤会在肝炎、肝硬化和肝癌等情况下发生,但是研究人员并未发现这种损伤还与醋氨酚毒性有关。研究人员正在开发可靠的手段,利用人肝脏组织代替动物进行检测,此后他们将进一步检测不同的醋氨酚剂量及使用频率对其肝毒性的影响,并将寻找可能缓解这种肝毒性的新药靶点。

参与这项研究的研究人员来自爱丁堡大学、奥斯陆大学以及苏格兰国家输血服务中心,相关成果发表在《Scientific Reports》上。爱丁堡大学肝脏学实验室及生物工程研究所的Leonard Nelson博士是这项研究的共同领导者,他说道:“醋氨酚是一种全世界常用的止痛药物,它很便宜,此前也认为其在治疗剂量内是安全而有效的。但是醋氨酚导致的肝损伤仍然是一个重要的临床问题,我们的研究再次强调需要谨慎用药,此外我们的发现也有助于开发消除药物肝损伤的方法。”

研究共同作者、来自爱丁堡大学MRC再生医学中心的Pierre Bagnaninchi说道:“研究人员研究醋氨酚导致的肝损伤已有40余年,而近年来生物传感技术的发展将有助于我们了解其中涉及的所有生物学机理。”

原始出处:

Wesam Gamal, Philipp Treskes, Kay Samuel,et al.Low-dose acetaminophen induces early disruption of cell-cell tight junctions in human hepatic cells and mouse liver. Scientific Reports ,30 January 2017.

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    2017-02-06 susice

    不错的发现

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=174584, encodeId=c30b1e4584c1, content=不错的发现, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161224/IMG585DA5E26B9F44696.jpg, createdBy=565a98798, createdName=susice, createdTime=Mon Feb 06 16:11:50 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=174542, encodeId=5d261e4542e6, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Feb 06 12:11:30 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1289961, encodeId=726f128996110, content=<a href='/topic/show?id=50e36316e7d' target=_blank style='color:#2F92EE;'>#止痛药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63167, encryptionId=50e36316e7d, topicName=止痛药)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4f32220, createdName=lancelotzzl, createdTime=Mon Feb 06 04:28:00 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1338765, encodeId=18841338e6548, content=<a href='/topic/show?id=9d3d812280b' target=_blank style='color:#2F92EE;'>#肝损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81228, encryptionId=9d3d812280b, topicName=肝损伤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Mon Feb 06 04:28:00 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397127, encodeId=3c7a139e127f9, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Mon Feb 06 04:28:00 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1405518, encodeId=6c40140551888, content=<a href='/topic/show?id=597b631634d' target=_blank style='color:#2F92EE;'>#止痛#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63163, encryptionId=597b631634d, topicName=止痛)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8da42553722, createdName=zhangxingru, createdTime=Mon Feb 06 04:28:00 CST 2017, time=2017-02-06, status=1, ipAttribution=)]
    2017-02-06 李东泽

    很好,不错,以后会多学习

    0

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