Nature:科学证明快乐记忆可改善抑郁

2015-06-23 佚名 生物谷

在最近一篇发表在国际学术期刊nature上的文章中,来自日本理化脑科学研究所和美国麻省理工学院的科学家进行了一项卓越研究,证明了记忆具有强大的医疗作用,他们人为地重新激活大脑在一些愉快的经历中所储存的正能量记忆,抑制了由应激诱导的抑郁造成的不良影响。 这项研究解答了长久以来人们对于积极性记忆能否覆写消极记忆的困惑。为解决这一问题,研究人员使用基因工程的方法构建了一种新的小鼠模型,当记忆形

在最近一篇发表在国际学术期刊nature上的文章中,来自日本理化脑科学研究所和美国麻省理工学院的科学家进行了一项卓越研究,证明了记忆具有强大的医疗作用,他们人为地重新激活大脑在一些愉快的经历中所储存的正能量记忆,抑制了由应激诱导的抑郁造成的不良影响。

这项研究解答了长久以来人们对于积极性记忆能否覆写消极记忆的困惑。为解决这一问题,研究人员使用基因工程的方法构建了一种新的小鼠模型,当记忆形成时,该模型小鼠中来自大脑齿状回的记忆细胞能够被标记,而利用植入齿状回的可发射蓝光的光纤装置可以重新激活那些被标记的细胞,因此,研究人员可以利用这一系统开启储存了之前记忆的记忆细胞。
 
为检测这一系统的可用性,研究人员给予了雄性小鼠一次积极性的经历--与雌性小鼠在一起--雄性小鼠对这一事件形成了记忆。随后这些雄性小鼠又经历了应激性刺激,形成一种类似抑郁的状态。当这种状态形成以后,研究人员利用蓝光激发系统对一些小鼠的齿状回进行刺激,重新激活了保存积极性记忆的记忆细胞。令人非常惊奇的是,在进行了重新激活之后小鼠完全从抑郁状态恢复过来,对大脑回路进行匹配分析发现大脑的另外两个区域--BLA和NAcc与齿状回区域协同发挥了作用。
 
研究人员又对这种恢复效应是否能够在缺少光刺激的情况下仍对大脑回路形成持久性改变进行了检测,他们对小鼠齿状回进行了5天的慢性光处理,保证积极性记忆细胞能够持续激活,结果发现接受了该处理的小鼠对应激诱导的抑郁所产生的负面影响有很强的适应能力,这表明储存在齿状回中的积极性记忆能够抑制或重写应激对行为造成的损伤效应。
 
这项研究证明了在情绪紊乱的情况下,积极性记忆和消极性记忆之间可以存在相互作用,这为未来进行情绪紊乱的干预治疗提供了重要信息。

原始出处:

Steve Ramirez, Xu Liu, Christopher J. MacDonald, Anthony Moffa, Joanne Zhou, Roger L. Redondo & Susumu Tonegawa.Activating positive memory engrams suppresses depression-like behaviour.Nature, June 18, 2015, 522, 335–339.doi:10.1038/nature14514

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1880704, encodeId=14871880e0400, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Jul 04 09:02:00 CST 2015, time=2015-07-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=59820, encodeId=502f5982060, content=这篇文章有一定深度, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=59121683644, createdName=doctording1, createdTime=Tue Jan 26 16:57:00 CST 2016, time=2016-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=59821, encodeId=feee598219f, content=是一篇不错的文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=59121683644, createdName=doctording1, createdTime=Tue Jan 26 16:57:00 CST 2016, time=2016-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=32697, encodeId=4fda3269ed6, content=有意思, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0f31631005, createdName=保守主义, createdTime=Tue Jul 14 07:21:00 CST 2015, time=2015-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=32698, encodeId=bfc73269828, content=生活有体验, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0f31631005, createdName=保守主义, createdTime=Tue Jul 14 07:21:00 CST 2015, time=2015-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29848, encodeId=009f2984885, content=牛, beContent=null, objectType=article, channel=null, level=null, likeNumber=118, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Mon Jun 29 15:12:00 CST 2015, time=2015-06-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29133, encodeId=ecf32913371, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Thu Jun 25 22:18:00 CST 2015, time=2015-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29063, encodeId=13aa29063bf, content=这不是废话吗。。, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=48ce1618316, createdName=stupidox, createdTime=Thu Jun 25 21:27:00 CST 2015, time=2015-06-25, status=1, ipAttribution=)]
    2015-07-04 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1880704, encodeId=14871880e0400, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Jul 04 09:02:00 CST 2015, time=2015-07-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=59820, encodeId=502f5982060, content=这篇文章有一定深度, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=59121683644, createdName=doctording1, createdTime=Tue Jan 26 16:57:00 CST 2016, time=2016-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=59821, encodeId=feee598219f, content=是一篇不错的文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=59121683644, createdName=doctording1, createdTime=Tue Jan 26 16:57:00 CST 2016, time=2016-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=32697, encodeId=4fda3269ed6, content=有意思, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0f31631005, createdName=保守主义, createdTime=Tue Jul 14 07:21:00 CST 2015, time=2015-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=32698, encodeId=bfc73269828, content=生活有体验, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0f31631005, createdName=保守主义, createdTime=Tue Jul 14 07:21:00 CST 2015, time=2015-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29848, encodeId=009f2984885, content=牛, beContent=null, objectType=article, channel=null, level=null, likeNumber=118, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Mon Jun 29 15:12:00 CST 2015, time=2015-06-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29133, encodeId=ecf32913371, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Thu Jun 25 22:18:00 CST 2015, time=2015-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29063, encodeId=13aa29063bf, content=这不是废话吗。。, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=48ce1618316, createdName=stupidox, createdTime=Thu Jun 25 21:27:00 CST 2015, time=2015-06-25, status=1, ipAttribution=)]
    2016-01-26 doctording1

    这篇文章有一定深度

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1880704, encodeId=14871880e0400, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Jul 04 09:02:00 CST 2015, time=2015-07-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=59820, encodeId=502f5982060, content=这篇文章有一定深度, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=59121683644, createdName=doctording1, createdTime=Tue Jan 26 16:57:00 CST 2016, time=2016-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=59821, encodeId=feee598219f, content=是一篇不错的文章, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=59121683644, createdName=doctording1, createdTime=Tue Jan 26 16:57:00 CST 2016, time=2016-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=32697, encodeId=4fda3269ed6, content=有意思, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0f31631005, createdName=保守主义, createdTime=Tue Jul 14 07:21:00 CST 2015, time=2015-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=32698, encodeId=bfc73269828, content=生活有体验, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d0f31631005, createdName=保守主义, createdTime=Tue Jul 14 07:21:00 CST 2015, time=2015-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29848, encodeId=009f2984885, content=牛, beContent=null, objectType=article, channel=null, level=null, likeNumber=118, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=3b2c1627329, createdName=owlhealth, createdTime=Mon Jun 29 15:12:00 CST 2015, time=2015-06-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29133, encodeId=ecf32913371, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Thu Jun 25 22:18:00 CST 2015, time=2015-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=29063, encodeId=13aa29063bf, content=这不是废话吗。。, beContent=null, objectType=article, channel=null, level=null, likeNumber=101, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=48ce1618316, createdName=stupidox, createdTime=Thu Jun 25 21:27:00 CST 2015, time=2015-06-25, status=1, ipAttribution=)]
    2016-01-26 doctording1

    是一篇不错的文章

    0

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    2015-07-14 保守主义

    有意思

    0

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    2015-07-14 保守主义

    生活有体验

    0

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    2015-06-29 owlhealth

    0

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    2015-06-25 huaxipanxing

    呵呵

    0

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    2015-06-25 stupidox

    这不是废话吗。。

    0

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