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Neuron:科学家们找到神经元损伤修复新方法

2016-10-18 佚名 生物谷

(图片摘自www.sciencealert.com)科学家们成功在小鼠体内找到能够使得神经纤维自我修复的方法:他们找到一类在神经连接遭到损伤之后阻止纤维重新生长的基因。这一基因叫做"Cacna2d2",是一类分子开关。如今我们知道了如何关闭这一开关,从而能为小儿麻痹症等脊柱损伤情形提供新的疗法的线索。来自德国的一家研究组猜测机体中存在着这么一类分子开关,能够在我们的身体成熟之后阻止神经元的进一步生


(图片摘自www.sciencealert.com)

科学家们成功在小鼠体内找到能够使得神经纤维自我修复的方法:他们找到一类在神经连接遭到损伤之后阻止纤维重新生长的基因。

这一基因叫做"Cacna2d2",是一类分子开关。如今我们知道了如何关闭这一开关,从而能为小儿麻痹症等脊柱损伤情形提供新的疗法的线索。

来自德国的一家研究组猜测机体中存在着这么一类分子开关,能够在我们的身体成熟之后阻止神经元的进一步生长。

通过生物信息学的方法,他们最终找到了这一基因。

Cacna2d2能够调节钙离子向胞内的流动,而钙离子水平的变化会进一步导致神经递质的释放。然而,这一机制同时能够抑制神经元之间的连接-"axon"的生长。

为了检验上述猜想,研究者们对小鼠进行Pregabalin(PGB)的刺激。PGB能够特异性结合钙离子通道,从而缓解受损伤神经元释放的痛觉信号。该疗法被用来治疗癫痫

当小鼠接受PGB刺激后,研究者们发现神经元开始重新生长。

受损伤神经元的自我修复一直以来是医学领域的一个巨大的"七巧板"谜题,不过我们对其的了解正在一步步加深。今年早期,来自美国的研究者们层发现线粒体与神经细胞生长之间的关系。

由于我们所有的成功案例都仅仅来源于小鼠,因此,我们对于达到完全修复脊柱神经损伤的目标还有一定的距离。不过,研究者们对这一方向还是充满希望的。

相关结果发表在《Neuron》杂志上。

原始出处

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1751818, encodeId=55d01e5181805, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12701, encryptionId=9b6a12e0155, topicName=Neuron)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c9c736410065, createdName=by2021, createdTime=Thu Aug 24 08:19:00 CST 2017, time=2017-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1903160, encodeId=1921190316065, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Jul 12 03:19:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083020, encodeId=bb4c208302020, content=<a href='/topic/show?id=1260565460c' target=_blank style='color:#2F92EE;'>#损伤修复#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56546, encryptionId=1260565460c, topicName=损伤修复)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/C4Qhy5XHSe503Qbjzc1UtDR83BCv66o6P2XRedX9ohsNGa3uEVicFFk2qkuX5zBSmpicepFySBrwoYknhqMdKmtw/132, createdBy=1aca2500179, createdName=12498d2fm51(暂无昵称), createdTime=Sun Dec 11 23:19:00 CST 2016, time=2016-12-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397079, encodeId=064d139e07901, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, 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=Thu Oct 20 09:19:00 CST 2016, time=2016-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=149721, encodeId=f777149e2159, content=这个发现有意思!可以为其他研究打开思路了, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=445f1740270, createdName=meiliwuxian, createdTime=Wed Oct 19 11:48:00 CST 2016, time=2016-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=149716, encodeId=c43f149e16a4, content=嗯,学习了,但还是有很多疑问, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=14251719934, createdName=卟离@雨相b81b8f28, createdTime=Wed Oct 19 11:32:40 CST 2016, time=2016-10-19, status=1, ipAttribution=)]
    2017-08-24 by2021
  2. [GetPortalCommentsPageByObjectIdResponse(id=1751818, encodeId=55d01e5181805, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12701, encryptionId=9b6a12e0155, topicName=Neuron)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c9c736410065, createdName=by2021, createdTime=Thu Aug 24 08:19:00 CST 2017, time=2017-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1903160, encodeId=1921190316065, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Jul 12 03:19:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083020, encodeId=bb4c208302020, content=<a href='/topic/show?id=1260565460c' target=_blank style='color:#2F92EE;'>#损伤修复#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56546, encryptionId=1260565460c, topicName=损伤修复)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/C4Qhy5XHSe503Qbjzc1UtDR83BCv66o6P2XRedX9ohsNGa3uEVicFFk2qkuX5zBSmpicepFySBrwoYknhqMdKmtw/132, createdBy=1aca2500179, createdName=12498d2fm51(暂无昵称), createdTime=Sun Dec 11 23:19:00 CST 2016, time=2016-12-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397079, encodeId=064d139e07901, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, 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=Thu Oct 20 09:19:00 CST 2016, time=2016-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=149721, encodeId=f777149e2159, content=这个发现有意思!可以为其他研究打开思路了, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=445f1740270, createdName=meiliwuxian, createdTime=Wed Oct 19 11:48:00 CST 2016, time=2016-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=149716, encodeId=c43f149e16a4, content=嗯,学习了,但还是有很多疑问, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=14251719934, createdName=卟离@雨相b81b8f28, createdTime=Wed Oct 19 11:32:40 CST 2016, time=2016-10-19, status=1, ipAttribution=)]
    2017-07-12 kord1982
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    2016-10-19 meiliwuxian

    这个发现有意思!可以为其他研究打开思路了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1751818, encodeId=55d01e5181805, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12701, encryptionId=9b6a12e0155, topicName=Neuron)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c9c736410065, createdName=by2021, createdTime=Thu Aug 24 08:19:00 CST 2017, time=2017-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1903160, encodeId=1921190316065, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Jul 12 03:19:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083020, encodeId=bb4c208302020, content=<a href='/topic/show?id=1260565460c' target=_blank style='color:#2F92EE;'>#损伤修复#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56546, encryptionId=1260565460c, topicName=损伤修复)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/C4Qhy5XHSe503Qbjzc1UtDR83BCv66o6P2XRedX9ohsNGa3uEVicFFk2qkuX5zBSmpicepFySBrwoYknhqMdKmtw/132, createdBy=1aca2500179, createdName=12498d2fm51(暂无昵称), createdTime=Sun Dec 11 23:19:00 CST 2016, time=2016-12-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397079, encodeId=064d139e07901, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, 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=Thu Oct 20 09:19:00 CST 2016, time=2016-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=149721, encodeId=f777149e2159, content=这个发现有意思!可以为其他研究打开思路了, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=445f1740270, createdName=meiliwuxian, createdTime=Wed Oct 19 11:48:00 CST 2016, time=2016-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=149716, encodeId=c43f149e16a4, content=嗯,学习了,但还是有很多疑问, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=14251719934, createdName=卟离@雨相b81b8f28, createdTime=Wed Oct 19 11:32:40 CST 2016, time=2016-10-19, status=1, ipAttribution=)]
    2016-10-19 卟离@雨相b81b8f28

    嗯,学习了,但还是有很多疑问

    0

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