Lancet Neurol:健康老年人群中临床和认知功能轨迹研究 (AIBL)

2016-07-31 MedSci MedSci原创

已知的在认知功能正常的老年人群中(年龄60岁或以上)有50-60%会出现脑淀粉样β蛋白(Aβ)沉积和神经退行性变。尚不清楚出现阿尔兹海默病病理变化和神经退行性变对认知功能的长期影响,以及他们是否独立或协同影响了认知功能。此研究的目的在于使用两种标记(阿尔兹海默病病理和神经退行性变)的影像构建健康老年人群的认知功能轨迹。 2006年11月3日到2014年11月25日,墨尔本,珀斯,澳大利亚57

已知的在认知功能正常的老年人群中(年龄60岁或以上)有50-60%会出现脑淀粉样β蛋白(Aβ)沉积和神经退行性变。尚不清楚出现阿尔兹海默病病理变化和神经退行性变对认知功能的长期影响,以及他们是否独立或协同影响了认知功能。此研究的目的在于使用两种标记(阿尔兹海默病病理和神经退行性变)的影像构建健康老年人群的认知功能轨迹。

2006年11月3日到2014年11月25日,墨尔本,珀斯,澳大利亚573名认知功能健康的老年人群(平均年龄73.1 岁 [SD 6.2]; 58%女性)入组了澳大利亚影像、生物标志物和生活方式(AIBL)研究。通过PET测量的Aβ沉积确定阿尔兹海默病病理(A),通过MRI测量的海马体积确定神经退行性变(N)。 使用A-N-, A+N-, A+N+,或可疑非阿尔兹海默病病理 (A-N+, SNAP)对受试者分级。评估随访超过6个月的临床进展,海马体积,标准神经退行性变检测和区域特异性和整体认知复合评分。使用线性混合效应模型和Cox比例风险模型评估,区别和比较4个 AN分级中患者的临床,认知和海马体积。

结果发现,50 (9%)个健康人群被分类为 A+N+;A+N-组,87 (15%)人;  A-N- ,310 (54%) 人;  SNAP组,126 (22%) 人。APOE ε4更常出现在A+N+ 组(27; 54%) 及 A+N- (42; 48%)组,而  A-N- (66; 21%) 组 SNAP组较少出现 (23; 18%)。A+N-组 A+N+ 组较 A-N- 组认知功能显著降低更快(每年AIBL-临床前AD 认知功能组成 [PACC] 0.08 SD ; 分别为p<0.0001;  0.25; p<0.0001)。A +N+组较A-N-海马萎缩更快(0.04 cm3 每年; p=0.02)。SNAP 与 A-N- 组相比,无明显下降(AIBL-PACC ,0.03 SD  [p=0.19]每年,以及海马体积增加0.02 cm3 每年[p=0.16] ), 尽管SNAP 有时与更低的基线认知评分相关(AIBL-PACC少于A-N-0.20 SD )。随访期间,A+N+组24% (n=12), A+N-组16% (n=14),相比SNAP组9% (n=11)的人发展为遗忘型轻度认知障碍或阿尔兹海默病。

大脑淀粉样变作为阿尔兹海默病病理的标志物,是认知功能下降和疾病从亚临床状态转化为有症状的状态的风险因素,神经退行性变也扮演了复合因素的角色。但单独的神经退行性变在无大脑淀粉样变或神经退行性变组未造成认知功能下降的显著风险差异。

原始出处:

Burnham SC1, Bourgeat P2, Doré V3, et al,Clinical and cognitive trajectories in cognitively healthy elderly individuals with suspected non-Alzheimer's disease pathophysiology (SNAP) or Alzheimer's disease pathology: a longitudinal study.Lancet Neurol. 2016 Jul 19. pii: S1474-4422(16)30125-9. doi: 10.1016/S1474-4422(16)30125-9. [Epub ahead of print]


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    2017-01-18 howi
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    2017-01-08 yinhl1978
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    2016-10-11 ylzr123

    好文值得点赞!继续关注学习。

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1828559, encodeId=cf9d18285593b, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Wed Jan 18 20:07:00 CST 2017, time=2017-01-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1999735, encodeId=13901999e35f3, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sun Jan 08 05:07:00 CST 2017, time=2017-01-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=145219, encodeId=14061452192e, content=好文值得点赞!继续关注学习。, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Tue Oct 11 20:08:45 CST 2016, time=2016-10-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=142716, encodeId=9a1f142e1679, content=文章很好,继续关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Sun Oct 09 16:03:14 CST 2016, time=2016-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1526726, encodeId=83b21526e2665, content=<a href='/topic/show?id=f37e8012213' target=_blank style='color:#2F92EE;'>#老年人群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80122, encryptionId=f37e8012213, topicName=老年人群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=xugumin, createdTime=Tue Aug 02 01:07:00 CST 2016, time=2016-08-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95228, encodeId=c7f995228dc, content=厉害的研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=a37a1710612, createdName=oo902, createdTime=Sun Jul 31 11:22:00 CST 2016, time=2016-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95211, encodeId=ab68952111e, content=老年人式一个特殊的人群,他们对很多东西都不敏感,表现不出来, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b09f1636586, createdName=onetree, createdTime=Sun Jul 31 11:08:00 CST 2016, time=2016-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95192, encodeId=134f951920f, content=文章不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zGdN1x8J6HqtUI2Gpibk3sfIIBhZchAhjoiaCQlficdtQTnEqYncy3GVEMPIOJwD7t0mO2KfYGMgkIg/0, createdBy=86081727811, createdName=4546wk, createdTime=Sun Jul 31 10:45:00 CST 2016, time=2016-07-31, status=1, ipAttribution=)]
    2016-10-09 1e10c84am36(暂无匿称)

    文章很好,继续关注

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1828559, encodeId=cf9d18285593b, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Wed Jan 18 20:07:00 CST 2017, time=2017-01-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1999735, encodeId=13901999e35f3, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sun Jan 08 05:07:00 CST 2017, time=2017-01-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=145219, encodeId=14061452192e, content=好文值得点赞!继续关注学习。, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Tue Oct 11 20:08:45 CST 2016, time=2016-10-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=142716, encodeId=9a1f142e1679, content=文章很好,继续关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Sun Oct 09 16:03:14 CST 2016, time=2016-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1526726, encodeId=83b21526e2665, content=<a href='/topic/show?id=f37e8012213' target=_blank style='color:#2F92EE;'>#老年人群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80122, encryptionId=f37e8012213, topicName=老年人群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=xugumin, createdTime=Tue Aug 02 01:07:00 CST 2016, time=2016-08-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95228, encodeId=c7f995228dc, content=厉害的研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=a37a1710612, createdName=oo902, createdTime=Sun Jul 31 11:22:00 CST 2016, time=2016-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95211, encodeId=ab68952111e, content=老年人式一个特殊的人群,他们对很多东西都不敏感,表现不出来, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b09f1636586, createdName=onetree, createdTime=Sun Jul 31 11:08:00 CST 2016, time=2016-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95192, encodeId=134f951920f, content=文章不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zGdN1x8J6HqtUI2Gpibk3sfIIBhZchAhjoiaCQlficdtQTnEqYncy3GVEMPIOJwD7t0mO2KfYGMgkIg/0, createdBy=86081727811, createdName=4546wk, createdTime=Sun Jul 31 10:45:00 CST 2016, time=2016-07-31, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1828559, encodeId=cf9d18285593b, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Wed Jan 18 20:07:00 CST 2017, time=2017-01-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1999735, encodeId=13901999e35f3, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sun Jan 08 05:07:00 CST 2017, time=2017-01-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=145219, encodeId=14061452192e, content=好文值得点赞!继续关注学习。, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Tue Oct 11 20:08:45 CST 2016, time=2016-10-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=142716, encodeId=9a1f142e1679, content=文章很好,继续关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Sun Oct 09 16:03:14 CST 2016, time=2016-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1526726, encodeId=83b21526e2665, content=<a href='/topic/show?id=f37e8012213' target=_blank style='color:#2F92EE;'>#老年人群#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80122, encryptionId=f37e8012213, topicName=老年人群)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=xugumin, createdTime=Tue Aug 02 01:07:00 CST 2016, time=2016-08-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95228, encodeId=c7f995228dc, content=厉害的研究, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=a37a1710612, createdName=oo902, createdTime=Sun Jul 31 11:22:00 CST 2016, time=2016-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95211, encodeId=ab68952111e, content=老年人式一个特殊的人群,他们对很多东西都不敏感,表现不出来, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b09f1636586, createdName=onetree, createdTime=Sun Jul 31 11:08:00 CST 2016, time=2016-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=95192, encodeId=134f951920f, content=文章不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zGdN1x8J6HqtUI2Gpibk3sfIIBhZchAhjoiaCQlficdtQTnEqYncy3GVEMPIOJwD7t0mO2KfYGMgkIg/0, createdBy=86081727811, createdName=4546wk, createdTime=Sun Jul 31 10:45:00 CST 2016, time=2016-07-31, status=1, ipAttribution=)]
    2016-07-31 oo902

    厉害的研究

    0

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    2016-07-31 onetree

    老年人式一个特殊的人群,他们对很多东西都不敏感,表现不出来

    0

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    2016-07-31 4546wk

    文章不错

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