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Nat Commun:如何减少糖尿病药物的副作用

2014-11-14 佚名 生物通

在某些情况下,用于促进胰腺分泌胰岛素的糖尿病药物会产生毒副作用,这主要是因为这些药物对其它器官,如大脑和心脏会造成影响,还有一些是因为药物也会刺激过多的胰岛素分泌,引起血糖忽高忽低。 为解决这一问题,来自伦敦帝国理工学院和LMJ慕尼黑大学的研究人员对现有的一类称为磺酰脲类(sulfonylureas)的药物进行了改良,令其在暴露于蓝色光中时,形状会发生变化。 这种药物在正常情况

在某些情况下,用于促进胰腺分泌胰岛素的糖尿病药物会产生毒副作用,这主要是因为这些药物对其它器官,如大脑和心脏会造成影响,还有一些是因为药物也会刺激过多的胰岛素分泌,引起血糖忽高忽低。[pdf free]

为解决这一问题,来自伦敦帝国理工学院和LMJ慕尼黑大学的研究人员对现有的一类称为磺酰脲类(sulfonylureas)的药物进行了改良,令其在暴露于蓝色光中时,形状会发生变化。

这种药物在正常情况下处于非活性状态,而当病患将蓝色LED贴在皮肤上时,就能开启这种药物(理论上)。只需极少量的光就能穿透皮肤改变药物的形状,并将其激活。这种变化也是可逆的,因此当灯熄灭的时候,药物就被关闭了。

这一研究成果公布在杂志Nature Communications上,研究人员证明了这种药物——JB253,能在实验室中,当接触蓝光时刺激胰岛细胞分泌胰岛素。

这项研究由帝国理工学院医学系David Hodson 博士和Guy Rutter 教授,以及慕尼黑大学Dirk Trauner教授和Johannes Broichhagen博士领导完成。

Hodson博士说,“在原则上说,这类治疗也许能更好的控制血糖水平,因为其只在餐后需要的时候才会被激活一段短的时间。而且也能通过在胰腺靶向药物活性减少并发症。”

“到目前为止,我们还是在实验室创建了一种对人体胰腺细胞能产生预期效果的分子,要想将这种分子用于临床上,还有很长的路要走,不过这正是我们的最终目标”。

II型糖尿病全球患者已经达到了3.5亿人,这种疾病会影响人体的血糖水平,引发心脏病和中风,并导致肾脏,神经和视网膜的损伤。

早在19世纪以来,科学家们就已经知道了光敏分子,但仅是在过去几年科学家们才开始利用这种分子的特性。

“光开启(Photoswitchable)药物,以及光药理学(photopharmacology)都能通过远程调控机体进程,来帮助各种疾病的治疗,”Trauner教授说。

来自英国糖尿病协会的Richard Elliott博士评论道,“磺脲类药物虽然帮助了许多II型糖尿病患者,但是也具有毒副作用。而我们发现的光激活药物治疗虽然目前还只是在起步阶段,但 未来一定会发展成极具吸引力的研究领域,帮助研发出一种更安全,更可控的治疗方式。”

原始出处:

Broichhagen J1, Schönberger M1, Cork SC2, Frank JA1, Marchetti P3, Bugliani M3, Shapiro AM4, Trapp S2, Rutter GA5, Hodson DJ5, Trauner D1.Optical control of insulin release using a photoswitchable sulfonylurea.Nat Commun. 2014 Oct 14;5:5116. doi: 10.1038/ncomms6116.[pdf free]


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  2. [GetPortalCommentsPageByObjectIdResponse(id=1824192, encodeId=a7fe18241929e, content=<a href='/topic/show?id=56a932e7800' target=_blank style='color:#2F92EE;'>#副作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32778, encryptionId=56a932e7800, topicName=副作用)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8f0715, createdName=showtest, createdTime=Wed Oct 14 16:36:00 CST 2015, time=2015-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880369, encodeId=0b711880369d0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri Dec 05 05:36:00 CST 2014, time=2014-12-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26365, encodeId=518e2636575, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20477, encodeId=02e1204e744, content=控制好糖尿病可能提高肝硬化患者的预后。, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 23:00:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086738, encodeId=7fb02086e3864, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Thu Mar 05 04:36:00 CST 2015, time=2015-03-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1584066, encodeId=f4e315840667d, content=<a href='/topic/show?id=1f13e6767e9' target=_blank style='color:#2F92EE;'>#糖尿病药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76767, encryptionId=1f13e6767e9, topicName=糖尿病药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5edb17003695, createdName=minhuang75_72521589, createdTime=Sun Nov 16 02:36:00 CST 2014, time=2014-11-16, status=1, ipAttribution=)]
    2014-12-05 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=1824192, encodeId=a7fe18241929e, content=<a href='/topic/show?id=56a932e7800' target=_blank style='color:#2F92EE;'>#副作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32778, encryptionId=56a932e7800, topicName=副作用)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8f0715, createdName=showtest, createdTime=Wed Oct 14 16:36:00 CST 2015, time=2015-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880369, encodeId=0b711880369d0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri Dec 05 05:36:00 CST 2014, time=2014-12-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26365, encodeId=518e2636575, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20477, encodeId=02e1204e744, content=控制好糖尿病可能提高肝硬化患者的预后。, beContent=null, objectType=article, channel=null, level=null, likeNumber=154, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 23:00:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086738, encodeId=7fb02086e3864, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Thu Mar 05 04:36:00 CST 2015, time=2015-03-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1584066, encodeId=f4e315840667d, content=<a href='/topic/show?id=1f13e6767e9' target=_blank style='color:#2F92EE;'>#糖尿病药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76767, encryptionId=1f13e6767e9, topicName=糖尿病药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5edb17003695, createdName=minhuang75_72521589, createdTime=Sun Nov 16 02:36:00 CST 2014, time=2014-11-16, status=1, ipAttribution=)]
    2015-06-08 ljjj1053

    非常好非常好

    0

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    2015-04-11 x35042875

    控制好糖尿病可能提高肝硬化患者的预后。

    0

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    2015-03-05 liuli5079
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