PLoS One:异氟醚麻醉为何会导致老年人AD相关的认知障碍?

2017-06-18 MedSci MedSci原创

研究已表明异氟醚麻醉是导致老年人阿尔茨海默病(AD)认知障碍和AD发展的主要原因。然而,异氟醚麻醉诱导AD相关认知功能障碍的发病机制目前尚未可知。因此,本研究旨在探讨异氟醚麻醉引起AD相关认知功能障碍的机制。 研究将Wistar大鼠随机分为6组(n = 12),1个对照组(CONT)和5个异氟醚(ISO)治疗组(ISO 0,ISO 0.5d、ISO 1d、ISO 3d、ISO 7d)。对照组

研究已表明异氟醚麻醉是导致老年人阿尔茨海默病(AD)认知障碍和AD发展的主要原因。然而,异氟醚麻醉诱导AD相关认知功能障碍的发病机制目前尚未可知。因此,本研究旨在探讨异氟醚麻醉引起AD相关认知功能障碍的机制。

研究将Wistar大鼠随机分为6组(n = 12),1个对照组(CONT)和5个异氟醚(ISO)治疗组(ISO 0,ISO 0.5d、ISO 1d、ISO 3d、ISO 7d)。对照组吸入30% O2 2小时,不作任何麻醉处理。ISO组置于3%异氟醚麻醉下,然后暴露于1.5%异氟醚,吸入30% O2 2小时。然后立即分析每个ISO组的大鼠,或在暴露后的不同的时间点(0.5,1, 3或7天)分析。使用Morris水迷宫试验评估大鼠的认知功能。使用免疫印迹法检测大鼠海马样品以评估β淀粉样蛋白前体蛋白(APP),β-点APP裂解酶-1(BACE-1)和Aβ42肽的水平。使用刚果红染色检测海马切片区β- Amyloid(Aβ)斑块。

结果,与对照组相比,所有ISO组大鼠表现逃避潜伏期延长和空间记忆受损。异氟醚增加APP mRNA的表达和APP蛋白的消耗,促进Aβ42的过量生成、齐聚和积累。然而,异氟烷并不影响BACE-1表达。只有在ISO组(3或7天处死的大鼠)可发现Aβ斑块。

总而言之,该研究表明,老年大鼠暴露于异氟烷增加了APP mRNA的表达,APP蛋白的消耗,随着Aβ42肽的过量产生和齐聚,导致海马Aβ斑块形成,这些影响可能导致认知损伤,包括空间记忆。

原始出处:

Shuai Zhang, Xueyuan Hu, et al., Isoflurane anesthesia promotes cognitive impairment by inducing expression of β-amyloid protein-related factors in the hippocampus of aged rats. PLoS One. 2017; 12(4): e0175654. Published online 2017 Apr 12. doi:  10.1371/journal.pone.0175654.

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1973970, encodeId=08f319e397079, content=<a href='/topic/show?id=827b49808cd' target=_blank style='color:#2F92EE;'>#异氟醚#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49808, encryptionId=827b49808cd, topicName=异氟醚)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/0EDD6BA8A8C6A0C23E8ABC8BA5331A25/100, createdBy=d37d2500154, createdName=ms5106640509429053, createdTime=Sat Jun 02 10:42:00 CST 2018, time=2018-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1789983, encodeId=bb1e1e899832a, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Feb 20 06:42:00 CST 2018, time=2018-02-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212653, encodeId=ab2521265382, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Jun 19 08:14:34 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212589, encodeId=dac721258917, content=学习一下谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzaiabIFicf63hKvVMjL6aJlx4yX4UcXmzX9DyibCRcicq0QtCRWMaQKh8MYjE1D3EKUBopgiaGWYuqbeR/0, createdBy=0c2b1999806, createdName=三生有幸9135, createdTime=Mon Jun 19 07:07:41 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212557, encodeId=a0ab21255e4f, content=学习谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Nd44v3xHnnictn9UpctwtH62EPQ59TMdI9lnqHMgQ16nH7GmGCfpzicsHgjibYVk6vwSpXrC86gMibRkoaIzf5HwSz7/0, createdBy=78cc1691107, createdName=龙胆草, createdTime=Mon Jun 19 06:26:07 CST 2017, time=2017-06-19, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1973970, encodeId=08f319e397079, content=<a href='/topic/show?id=827b49808cd' target=_blank style='color:#2F92EE;'>#异氟醚#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49808, encryptionId=827b49808cd, topicName=异氟醚)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/0EDD6BA8A8C6A0C23E8ABC8BA5331A25/100, createdBy=d37d2500154, createdName=ms5106640509429053, createdTime=Sat Jun 02 10:42:00 CST 2018, time=2018-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1789983, encodeId=bb1e1e899832a, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Feb 20 06:42:00 CST 2018, time=2018-02-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212653, encodeId=ab2521265382, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Jun 19 08:14:34 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212589, encodeId=dac721258917, content=学习一下谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzaiabIFicf63hKvVMjL6aJlx4yX4UcXmzX9DyibCRcicq0QtCRWMaQKh8MYjE1D3EKUBopgiaGWYuqbeR/0, createdBy=0c2b1999806, createdName=三生有幸9135, createdTime=Mon Jun 19 07:07:41 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212557, encodeId=a0ab21255e4f, content=学习谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Nd44v3xHnnictn9UpctwtH62EPQ59TMdI9lnqHMgQ16nH7GmGCfpzicsHgjibYVk6vwSpXrC86gMibRkoaIzf5HwSz7/0, createdBy=78cc1691107, createdName=龙胆草, createdTime=Mon Jun 19 06:26:07 CST 2017, time=2017-06-19, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1973970, encodeId=08f319e397079, content=<a href='/topic/show?id=827b49808cd' target=_blank style='color:#2F92EE;'>#异氟醚#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49808, encryptionId=827b49808cd, topicName=异氟醚)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/0EDD6BA8A8C6A0C23E8ABC8BA5331A25/100, createdBy=d37d2500154, createdName=ms5106640509429053, createdTime=Sat Jun 02 10:42:00 CST 2018, time=2018-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1789983, encodeId=bb1e1e899832a, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Feb 20 06:42:00 CST 2018, time=2018-02-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212653, encodeId=ab2521265382, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Jun 19 08:14:34 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212589, encodeId=dac721258917, content=学习一下谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzaiabIFicf63hKvVMjL6aJlx4yX4UcXmzX9DyibCRcicq0QtCRWMaQKh8MYjE1D3EKUBopgiaGWYuqbeR/0, createdBy=0c2b1999806, createdName=三生有幸9135, createdTime=Mon Jun 19 07:07:41 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212557, encodeId=a0ab21255e4f, content=学习谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Nd44v3xHnnictn9UpctwtH62EPQ59TMdI9lnqHMgQ16nH7GmGCfpzicsHgjibYVk6vwSpXrC86gMibRkoaIzf5HwSz7/0, createdBy=78cc1691107, createdName=龙胆草, createdTime=Mon Jun 19 06:26:07 CST 2017, time=2017-06-19, status=1, ipAttribution=)]
    2017-06-19 明月清辉

    谢谢分享,学习了

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1973970, encodeId=08f319e397079, content=<a href='/topic/show?id=827b49808cd' target=_blank style='color:#2F92EE;'>#异氟醚#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49808, encryptionId=827b49808cd, topicName=异氟醚)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/0EDD6BA8A8C6A0C23E8ABC8BA5331A25/100, createdBy=d37d2500154, createdName=ms5106640509429053, createdTime=Sat Jun 02 10:42:00 CST 2018, time=2018-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1789983, encodeId=bb1e1e899832a, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Feb 20 06:42:00 CST 2018, time=2018-02-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212653, encodeId=ab2521265382, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Jun 19 08:14:34 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212589, encodeId=dac721258917, content=学习一下谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzaiabIFicf63hKvVMjL6aJlx4yX4UcXmzX9DyibCRcicq0QtCRWMaQKh8MYjE1D3EKUBopgiaGWYuqbeR/0, createdBy=0c2b1999806, createdName=三生有幸9135, createdTime=Mon Jun 19 07:07:41 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212557, encodeId=a0ab21255e4f, content=学习谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Nd44v3xHnnictn9UpctwtH62EPQ59TMdI9lnqHMgQ16nH7GmGCfpzicsHgjibYVk6vwSpXrC86gMibRkoaIzf5HwSz7/0, createdBy=78cc1691107, createdName=龙胆草, createdTime=Mon Jun 19 06:26:07 CST 2017, time=2017-06-19, status=1, ipAttribution=)]
    2017-06-19 三生有幸9135

    学习一下谢谢分享

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1973970, encodeId=08f319e397079, content=<a href='/topic/show?id=827b49808cd' target=_blank style='color:#2F92EE;'>#异氟醚#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49808, encryptionId=827b49808cd, topicName=异氟醚)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/0EDD6BA8A8C6A0C23E8ABC8BA5331A25/100, createdBy=d37d2500154, createdName=ms5106640509429053, createdTime=Sat Jun 02 10:42:00 CST 2018, time=2018-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1789983, encodeId=bb1e1e899832a, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Feb 20 06:42:00 CST 2018, time=2018-02-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212653, encodeId=ab2521265382, content=谢谢分享,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Mon Jun 19 08:14:34 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212589, encodeId=dac721258917, content=学习一下谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzaiabIFicf63hKvVMjL6aJlx4yX4UcXmzX9DyibCRcicq0QtCRWMaQKh8MYjE1D3EKUBopgiaGWYuqbeR/0, createdBy=0c2b1999806, createdName=三生有幸9135, createdTime=Mon Jun 19 07:07:41 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=212557, encodeId=a0ab21255e4f, content=学习谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Nd44v3xHnnictn9UpctwtH62EPQ59TMdI9lnqHMgQ16nH7GmGCfpzicsHgjibYVk6vwSpXrC86gMibRkoaIzf5HwSz7/0, createdBy=78cc1691107, createdName=龙胆草, createdTime=Mon Jun 19 06:26:07 CST 2017, time=2017-06-19, status=1, ipAttribution=)]
    2017-06-19 龙胆草

    学习谢谢分享

    0

相关资讯

JAMA:认知功能正常者的阿尔兹海默症相关认知障碍风险评估

脑β淀粉样蛋白聚集是阿尔茨海默病(AD)早期病理性事件之一,可在痴呆发生前数十年就开始。在认知正常的个体中,脑淀粉样蛋白升高(通过脑脊液分析或正电子发射断层扫描检测)可能与以后阿尔茨海默症相关的认知衰退有关。

Neurology:中枢神经网络连接增加与多发性硬化认知障碍

重度认知障碍的多发性硬化患者,其默认模式网络和额顶网络与大脑的其余部分连接增加导致信息处理相互干扰引发认知能力降低

J ALZHEIMERS DIS:利用机器学习对认知障碍进行诊断未来能够成为可能么?

对于痴呆症的早期诊断具有重要的临床和社会意义。最近使用对话分析(CA)定性方法的研究表明,语言和沟通问题在患者和神经学家之间是非常明显的,而基于对此的观察可以用来区分认知障碍是由于神经退行性疾病(ND)还是功能性的记忆障碍(FMD)所导致的。

Lancet Psychiatry:帕金森患者认知障碍预测新方法

研究为帕金森病患者认知功能完整或受损提供了一个潜在的测试方法,将有助于认知干预试验在帕金森防治中发挥更大的作用。

Front Aging Neurosci:胰岛素鼻内给药或可防止全麻后认知功能的损害

全身麻醉会增加术后认知功能障碍的发生风险,尤其是老年人和易感个体。近年来动物模型研究对麻醉对术后认知功能障碍影响提供了一些有价值的证据研究,但还有许多有待进一步研究的地方。 本研究利用不同年龄和疾病状态的小鼠,采用Morris水迷宫(MWM)测试发现麻醉暴露后2-6天异丙酚和七氟醚麻醉可显著降低小鼠的空间学习记忆能力。在野生型(WT)老年小鼠(17–18月龄)和3xTg-AD(阿尔茨海默病(

Ann Surg:术后认知障碍是否与手术及麻醉相关?

术后认知功能障碍是一种普遍存在的个体和公共健康问题。但是关于其研究的数据较少不足以确定认知障碍是否是由于手术和麻醉的暴露相关。本研究旨在确定手术和麻醉是否是重症疾病患者术后(非心脏术)认知功能障碍的一个独立的危险因素。 采用多中心的前瞻性队列研究设计,纳入ICU重症患者,住院期间接受非心脏手术或未接受手术治疗。在第3个月和12个月,使用重复性成套神经心理状态测验评估幸存者的整体认知功能,并使