Neuron:科学家找到了控制记忆的蛋白开关

2018-06-04 小通 生物通

英国华威大学(University of Warwick)领导的一项国际合作研究突破性地寻找到了记忆、学习和认知灵活度的大脑蛋白开关。这一新知识可以使我们更好地理解和对抗记忆相关神经疾病,如阿尔兹海默症等。


英国华威大学(University of Warwick)领导的一项国际合作研究突破性地寻找到了记忆、学习和认知灵活度的大脑蛋白开关。这一新知识可以使我们更好地理解和对抗记忆相关神经疾病,如阿尔兹海默症等。

华威大学生命科学学院的Mark Wall博士和乔治亚州立大学和布拉德福德大学的研究人员发现,学习过程中,脑内Arc蛋白水平升高,但是,在我们接受新信息后,这种蛋白需被迅速关闭和去除,我们才能记住并保留这些信息。

有研究已经证明了Arc在调节大脑记忆和学习过程中的重要性,但是关于它的“关断”和“移除”的重要作用直到最近的这篇文章报道之前仍是未知的。

认知灵活性使我们能够学习和适应周围世界、拾取视觉和听觉线索生成新记忆信息,告知我们应该如何应对变化。患有神经系统疾病的人(例如阿尔兹海默症患者),认知灵活性下降,导致无法学习和保留新信息。

研究表明,大脑未能完全关闭Arc蛋白,使它们留存脑内是导致缺乏认知灵活性和无法学习记忆新信息的原因。

华威大学生命科学学院生物医学科学主任Mark Wall评论说:

“我们可以使用一个类比来解释这项发现:你在一间酒店入住几个星期。第一周后,经理变更了你的房间,但没有告诉你新房间的位置。如果你要找到新房间,你必须用你的新门卡测试每间房,直到打开新房间的门。但是,一旦你找到以后,你就能凭借一系列空间线索,包括房间在哪层、距离电梯有多远、是否位于消防出口附近信息等迅速定位你的房间。”

布拉德福德大学生命科学学院的Sonia A.L. Corrêa博士继续说:

“想象一下,如果每次你回到酒店,都必须在每间房门上测试你的门卡直到找到房间,这种情况被称为认知不灵活。如果Arc蛋白没被正确关闭,就会发生这样的事。随着年龄增长,这样的事发生得更加频繁。”

为了测试这个新知识点,研究人员创建了Arc蛋白无法被关闭或移除的突变小鼠,随后发现,突变小鼠在行为上是正常的,但是在认知灵活性方面存在特异缺陷,文章发表于《Neuron》杂志。

原始出处:

Mark J. Wall,et al.The Temporal Dynamics of Arc Expression Regulate Cognitive Flexibility.Neuron.Published Online: May 31, 2018

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    2018-08-24 by2021
  2. [GetPortalCommentsPageByObjectIdResponse(id=1751864, encodeId=75421e5186430, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Fri Aug 24 15:07:00 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322238, encodeId=23f9322238b7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Thu Jun 07 13:00:30 CST 2018, time=2018-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321652, encodeId=814d3216528f, content=赞一个, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5171668917, createdName=坚强007, createdTime=Tue Jun 05 11:04:48 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321588, encodeId=6dd23215884c, content=了解下谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Tue Jun 05 07:26:42 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321550, encodeId=08c9321550db, content=学习学习.了解了解, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Tue Jun 05 06:33:45 CST 2018, time=2018-06-05, status=1, ipAttribution=)]
    2018-06-07 大爰

    学习了谢谢分享!!

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1751864, encodeId=75421e5186430, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Fri Aug 24 15:07:00 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322238, encodeId=23f9322238b7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Thu Jun 07 13:00:30 CST 2018, time=2018-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321652, encodeId=814d3216528f, content=赞一个, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5171668917, createdName=坚强007, createdTime=Tue Jun 05 11:04:48 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321588, encodeId=6dd23215884c, content=了解下谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Tue Jun 05 07:26:42 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321550, encodeId=08c9321550db, content=学习学习.了解了解, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Tue Jun 05 06:33:45 CST 2018, time=2018-06-05, status=1, ipAttribution=)]
    2018-06-05 坚强007

    赞一个

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1751864, encodeId=75421e5186430, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Fri Aug 24 15:07:00 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322238, encodeId=23f9322238b7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Thu Jun 07 13:00:30 CST 2018, time=2018-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321652, encodeId=814d3216528f, content=赞一个, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5171668917, createdName=坚强007, createdTime=Tue Jun 05 11:04:48 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321588, encodeId=6dd23215884c, content=了解下谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Tue Jun 05 07:26:42 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321550, encodeId=08c9321550db, content=学习学习.了解了解, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Tue Jun 05 06:33:45 CST 2018, time=2018-06-05, status=1, ipAttribution=)]
    2018-06-05 kafei

    了解下谢谢

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1751864, encodeId=75421e5186430, content=<a href='/topic/show?id=9b6a12e0155' target=_blank style='color:#2F92EE;'>#Neuron#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Fri Aug 24 15:07:00 CST 2018, time=2018-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322238, encodeId=23f9322238b7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Thu Jun 07 13:00:30 CST 2018, time=2018-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321652, encodeId=814d3216528f, content=赞一个, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e5171668917, createdName=坚强007, createdTime=Tue Jun 05 11:04:48 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321588, encodeId=6dd23215884c, content=了解下谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Tue Jun 05 07:26:42 CST 2018, time=2018-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=321550, encodeId=08c9321550db, content=学习学习.了解了解, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Tue Jun 05 06:33:45 CST 2018, time=2018-06-05, status=1, ipAttribution=)]
    2018-06-05 1dd8c52fm63(暂无匿称)

    学习学习.了解了解

    0