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JAMA Neurol:tau蛋白和Aβ积累与帕金森患者认知

2017-12-15 zhangfan MedSci原创

研究发现,认知正常及中度障碍的帕金森患者与健康志愿者相比,皮质Aβ和tau蛋白积累程度无显著差异。年龄、Aβ以及 tau蛋白不能够预测帕金森患者认知状态。对于帕金森患者以及正常人群,tau蛋白聚集程度与Aβ聚集和年龄相关

多种疾病过程与帕金森病(PD)认知障碍有关,包括路易体病、脑血管病和阿尔茨海默病。近日研究人员对PD认知正常患者(PD-CN)、PD认知中度障碍患者(PD-MCI)以及健康志愿者的tau蛋白聚集程度进行比较,评估Aβ、tau蛋白与无痴呆症状的PD患者认知之间的关系。

研究招募29名PD患者,其中CN15人,MCI 14人。患者接受F18标记AV-1451PET评估tau蛋白聚集,通过C11标记的匹兹堡化合物B磁共振成像评估Aβ,患者同时接受认知测试和神经学评价。49名健康志愿者参与研究。

所有参与者平均年龄71.1岁,女性占60%。6名PD患者(21%)Aβ呈阳性,其中1人存在中度认知障碍;23名PD患者Aβ阴性。在49名对照者中,25人Aβ阴性,24人阳性。全脑tau PET摄取量,Aβ阴性的PD-CN、 PD-MCI以及对照者之间无显著差异。PD-MCI 、PD-CN患者以及Aβ阴性的PD和对照者之间,各脑区反映阿尔茨海默病Braak阶段(1-6)的PET结合能力参数无显著差异。相对于Aβ阴性患者, Aβ阳性患者tau蛋白PET结合能力显著提高,对于Braak3-4级患者,tau蛋白PET结合能力Aβ阳性患者vs阴性患者为1.22 vs 1.14;对于Braak5-6级患者,tau蛋白PET结合能力Aβ阳性患者vs阴性患者为1.20 vs 1.11。

研究发现,认知正常及中度障碍的帕金森患者与健康志愿者相比,皮质Aβ和tau蛋白积累程度无显著差异。年龄、Aβ以及 tau蛋白不能够预测帕金森患者认知状态。对于帕金森患者以及正常人群,tau蛋白聚集程度与Aβ聚集和年龄相关。

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    2018-05-26 yinhl1978
  2. [GetPortalCommentsPageByObjectIdResponse(id=2000224, encodeId=da6b200022496, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sat May 26 07:22:00 CST 2018, time=2018-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=270793, encodeId=12ce2e07934f, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Wed Dec 20 06:53:32 CST 2017, time=2017-12-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1509263, encodeId=38d0150926344, content=<a href='/topic/show?id=19791e14471' target=_blank style='color:#2F92EE;'>#Tau#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17144, encryptionId=19791e14471, topicName=Tau)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55c610090940, createdName=szhvet, createdTime=Sun Dec 17 04:22:00 CST 2017, time=2017-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1605260, encodeId=86f81605260b8, content=<a href='/topic/show?id=b820309108' target=_blank style='color:#2F92EE;'>#Aβ#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=110, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3091, encryptionId=b820309108, topicName=Aβ)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee1c19366172, createdName=膀胱癌, createdTime=Sun Dec 17 04:22:00 CST 2017, time=2017-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=269612, encodeId=2f992696125f, content=研究样本太小了, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Fri Dec 15 14:57:00 CST 2017, time=2017-12-15, status=1, ipAttribution=)]
    2017-12-20 1209e435m98(暂无昵称)

    学习了.谢谢分享!

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=2000224, encodeId=da6b200022496, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sat May 26 07:22:00 CST 2018, time=2018-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=270793, encodeId=12ce2e07934f, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Wed Dec 20 06:53:32 CST 2017, time=2017-12-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1509263, encodeId=38d0150926344, content=<a href='/topic/show?id=19791e14471' target=_blank style='color:#2F92EE;'>#Tau#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17144, encryptionId=19791e14471, topicName=Tau)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55c610090940, createdName=szhvet, createdTime=Sun Dec 17 04:22:00 CST 2017, time=2017-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1605260, encodeId=86f81605260b8, content=<a href='/topic/show?id=b820309108' target=_blank style='color:#2F92EE;'>#Aβ#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=110, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3091, encryptionId=b820309108, topicName=Aβ)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee1c19366172, createdName=膀胱癌, createdTime=Sun Dec 17 04:22:00 CST 2017, time=2017-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=269612, encodeId=2f992696125f, content=研究样本太小了, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Fri Dec 15 14:57:00 CST 2017, time=2017-12-15, status=1, ipAttribution=)]
    2017-12-17 szhvet
  4. [GetPortalCommentsPageByObjectIdResponse(id=2000224, encodeId=da6b200022496, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sat May 26 07:22:00 CST 2018, time=2018-05-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=270793, encodeId=12ce2e07934f, content=学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7c592194322, createdName=1209e435m98(暂无昵称), createdTime=Wed Dec 20 06:53:32 CST 2017, time=2017-12-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1509263, encodeId=38d0150926344, content=<a href='/topic/show?id=19791e14471' target=_blank style='color:#2F92EE;'>#Tau#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17144, encryptionId=19791e14471, topicName=Tau)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55c610090940, createdName=szhvet, createdTime=Sun Dec 17 04:22:00 CST 2017, time=2017-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1605260, encodeId=86f81605260b8, content=<a href='/topic/show?id=b820309108' target=_blank style='color:#2F92EE;'>#Aβ#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=110, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3091, encryptionId=b820309108, topicName=Aβ)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee1c19366172, createdName=膀胱癌, createdTime=Sun Dec 17 04:22:00 CST 2017, time=2017-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=269612, encodeId=2f992696125f, content=研究样本太小了, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Fri Dec 15 14:57:00 CST 2017, time=2017-12-15, status=1, ipAttribution=)]
    2017-12-17 膀胱癌
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    2017-12-15 lovetcm

    研究样本太小了

    0

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