Biol Psychiat:脑中谷胱甘肽水平——轻度认知障碍和AD的一种新的生物标志物

2015-10-23 candy 译 MedSci原创

背景:从现存的活体动物模型和尸检研究的数据表明,阿尔茨海默氏病(AD)的病理与大脑中抗氧化剂谷胱甘肽(GSH)的减少有关,但缺乏直接的临床证据。在这项研究中,研究人员研究了阿尔茨海默氏病(AD)中抗氧化剂谷胱甘肽(GSH)的调制;估计海马(HP)与额叶皮层(FC)中的GSH水平,评估AD、AD前驱期和轻度认知障碍(MCI)的生物标志物的诊断机制。方法:GSH组包括21例阿尔茨海默氏病患者(AD),

背景:现存的活体动物模型和尸检研究的数据表明,阿尔茨海默氏病(AD)的病理与大脑中抗氧化剂谷胱甘肽(GSH)的减少有关,但缺乏直接的临床证据。在这项研究中,研究人员研究了阿尔茨海默氏病(AD)中抗氧化剂谷胱甘肽(GSH)的调制;估计海马(HP)与额叶皮层(FC)中的GSH水平,评估AD、AD前驱期和轻度认知障碍(MCI)的生物标志物的诊断机制。

方法:GSH组包括21例阿尔茨海默氏病患者(AD), 22例轻度认知障碍患者(MCI),健康老年21例,测量其大脑海马区(HP)的抗氧化剂谷胱甘肽(GSH)水平;另外,磁共振组包括19例AD,19例MCI,28例HC,进行活体质子磁共振波谱检测。线性回归模型被用来决定各脑区GSH估计的最佳组合,以区分AD、MCI和HC者。

结果:研究发现阿尔茨海默氏病患者的GSH水平在海马(HP)与额叶皮层(FC)中显著减小(P< .001)。而且,研究发现这些脑区GSH的减小与认知功能的减退有相关性。接收操作特性分析表明,海马区GSH可明显区分轻度认知障碍(MCI)和健康对照者,灵敏性为87.5%,特异性为100%,阳性与阴性的似然比(LR)为8.76/.13;而外皮层的GSH区分MCI与AD的灵敏性为91.7%,特异性为 100%,阳性与阴性的似然比为9.17/.08。

结论:本研究提供了令人信服的体内证据,表明在磁共振波谱的特定大脑区域的GSH水平估计是与MCI和AD临床相关的生物标志物。

原始出处:



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=1766975, encodeId=456e1e66975b7, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Tue Jul 12 10:46:00 CST 2016, time=2016-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917205, encodeId=2870191e2059d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri May 20 02:46:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1840854, encodeId=509d18408545e, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sun Aug 21 16:46:00 CST 2016, time=2016-08-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560543, encodeId=5b35156054305, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566552, encodeId=3fb2156655299, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1766975, encodeId=456e1e66975b7, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Tue Jul 12 10:46:00 CST 2016, time=2016-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917205, encodeId=2870191e2059d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri May 20 02:46:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1840854, encodeId=509d18408545e, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sun Aug 21 16:46:00 CST 2016, time=2016-08-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560543, encodeId=5b35156054305, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566552, encodeId=3fb2156655299, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=)]
    2016-05-20 sunylz
  3. [GetPortalCommentsPageByObjectIdResponse(id=1766975, encodeId=456e1e66975b7, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Tue Jul 12 10:46:00 CST 2016, time=2016-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917205, encodeId=2870191e2059d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri May 20 02:46:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1840854, encodeId=509d18408545e, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sun Aug 21 16:46:00 CST 2016, time=2016-08-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560543, encodeId=5b35156054305, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566552, encodeId=3fb2156655299, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1766975, encodeId=456e1e66975b7, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Tue Jul 12 10:46:00 CST 2016, time=2016-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917205, encodeId=2870191e2059d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri May 20 02:46:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1840854, encodeId=509d18408545e, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sun Aug 21 16:46:00 CST 2016, time=2016-08-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560543, encodeId=5b35156054305, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566552, encodeId=3fb2156655299, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1766975, encodeId=456e1e66975b7, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Tue Jul 12 10:46:00 CST 2016, time=2016-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1917205, encodeId=2870191e2059d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri May 20 02:46:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1840854, encodeId=509d18408545e, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sun Aug 21 16:46:00 CST 2016, time=2016-08-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560543, encodeId=5b35156054305, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566552, encodeId=3fb2156655299, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Sun Oct 25 07:46:00 CST 2015, time=2015-10-25, status=1, ipAttribution=)]

相关资讯

华人学者重要成果连发四权威期刊

宾州州立大学的科学家和他们的学生,花了无数时间试图解决棘手的研究奥秘,是什么激励着他们这样做呢?宾州州立大学生物学教授陈功(音译,Gong Chen)说,答案是,他们希望帮助缓解患者及其亲人的痛苦。他告诉一群阿尔茨海默氏病患者及其亲属朋友:“我希望帮助那些患有大脑/脊髓损伤和疾病的人。”在2014年10月份阿尔茨海默氏症协会的 Walk to End Alzheimer's Disease会议

STM:睡眠觉醒周期和Aβ昼夜变化在阿尔茨海默氏病的意义

在阿尔茨海默氏病(AD)临床发作之前,大脑中的β-淀粉样蛋白(Aβ)就已经开始聚集。在Aβ聚集发生以前,大脑组织间液(ISF)的细胞外可溶性Aβ浓度(该浓度受神经活动和睡眠 - 觉醒周期所调节),与大脑中Aβ的沉积量相关。 随着衰老过程的不断进展,人类的睡眠数量和质量逐渐下降。这种下降在AD患者表现得更明显。但是,睡眠质量以及Aβ的昼夜波动如何随着年龄的增长和Aβ聚集变化,还不是很清楚。 本研

JAD:FKBP52蛋白可能成为治疗阿尔茨海默氏病治疗靶点

人类新研究发现,名叫FKBP52的蛋白可能会阻止Tau蛋白转向病原性。这将有利于阿尔茨海默氏症的治疗新药物的开发和在临床症状出现前检测疾病。 3月21,发表在Journal of Alzheimer's Disease杂志的一项研究表明,20年前Etienne BAULIEU教授发现的蛋白FKBP52可以防止Tau蛋白过磷酸化,Tau蛋白过磷酸化已被证明是大脑神经退行性疾病包括阿尔茨海默氏病

阿尔茨海默氏病与牙周炎——令人难以捉摸的联系

摘要阿尔茨海默氏病是痴呆症最显著的原因和最常见的类型。该病的临床特征是认知功能的进行性退化,首先表现为记忆力减退。其确切的病因及病理生理机制尚未完全清楚。但是目前的推测是,神经炎症在阿尔茨海默氏病发病机制中起着至关重要的作用。阿尔茨海默氏病的特点是有明显的炎症特征,表现为受累的部位小胶质细胞的激活以及促炎症因子水平的升高。研究表明,系统性感染可能会使中枢神经系统处于炎症状态。牙周炎是常见的口腔感染