Neurology:伴轻度认知障碍的路易体痴呆患者,淀粉样蛋白-β沉积较少,多巴胺能活性降低

2021-01-22 Freeman MedSci原创

伴轻度认知障碍的路易体痴呆患者,淀粉样蛋白-β沉积较少,多巴胺能活性降低

轻度认知障碍(MCI)联合一个或多个的痴呆与路易体的核心特征(DLB)代表了一个过渡阶段,这个阶段过后可进展为临床可能性DLB。最近,学术上把它定义为关键的前驱DLB表型(MCI-LB) 。

影像学生物标志物的使用促进了DLB的早期检测,在MCI-LB阶段识别患者为提供早期干预提供了机会。在路易体病中, α-synuclein病理沉积是一个重要表现,同时许多患者还存在不同程度的淀粉样蛋白病理表现,这两种病理表现可能协同促成DLB的发病。

但同时存在的Lewy相关病理和淀粉样蛋白-β病理是否会影响DLB前驱期的临床表现,目前尚不清楚。匹兹堡复合物-B(PiB)PET上淀粉样蛋白-β负担的升高 ,在一半以上的DLB患者中被报道,并且与DLB更大的认知障碍相关。死前123I-FP-CIT SPECT(量化多巴胺转运体)的定量分析能区分尸检证实的LB疾病。这支持123I-FP-CIT SPECT可作为MCI-LB中基本Lewy相关病理的生物标志物。

藉此,四川大学华西医院的Qin Chen等人,在MCI-LB患者中,探究了淀粉样蛋白-β-PET和多巴胺转运体成像(123I-FP-CIT SPECT)和临床表型的关系。

他们纳入了(n=34)MCI-LB患者,基于之前的文献,将患者分为β-淀粉样蛋白A+或A-组,和123I-FP-CIT SPECT D+或D-组。即共分为四个亚组:A+D+,A+D-,A-D+,或A-D-。最后通过病理的量化评分,探究评分和临床表型的关系。

结果显示:A-D+生物标志物与患者特征的关系 A-D+生物标志物特征最常见(38.2%),其次是A+D+(26.5%)和A-D-(26.5%)。最不常见的是A+D-生物标志物谱(8.8%)。A+组年龄较大,APOE ε4携带者频率较高,MMSE评分低于A-组。D+组更可能有可能出现快速眼动睡眠行为障碍。较低的PiB SUVRs与较高的统一帕金森病评分表(UPDRS)-III评分独立相关。

这个研究的重要意义在于发现了,MCI-LB患者中,大多数人都有较高的帕金森病统一评分表(UPDRS-III)评分。大多数MCI-LB患者的特点是淀粉样蛋白-β沉积较少,多巴胺能活性降低。淀粉样蛋白-β PET和123I-FP-CIT SPECT在描述MCI-LB患者的临床表型方面具有互补性。


原文出处:
Chen, Q., Lowe, V. J., Boeve, B. F., Przybelski, S. A., Miyagawa, T., Senjem, M. L., Jack, C. R., Jr, Lesnick, T. G., Kremers, W. K., Fields, J. A., Min, H. K., Schwarz, C. G., Gunter, J. L., Graff-Radford, J., Savica, R., Knopman, D. S., Jones, D., Ferman, T. J., Graff-Radford, N. R., Petersen, R. C., … Kantarci, K. (2021). Mild Cognitive Impairment at Risk for Lewy Body Dementia. _Neurology_, 10.1212/WNL.0000000000011454. Advance online publication. https://doi.org/10.1212/WNL.0000000000011454

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    2021-07-28 yinhl1978
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    2021-05-19 longerg
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  5. [GetPortalCommentsPageByObjectIdResponse(id=2009097, encodeId=5542200909e05, content=<a href='/topic/show?id=3ed8e121172' target=_blank style='color:#2F92EE;'>#痴呆患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71211, encryptionId=3ed8e121172, topicName=痴呆患者)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e4aa106, createdName=crystal0562, createdTime=Fri Apr 23 03:30:52 CST 2021, time=2021-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2001210, encodeId=100d20012107c, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Wed Jul 28 22:30:52 CST 2021, time=2021-07-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1754944, encodeId=ef221e5494441, content=<a href='/topic/show?id=bf6093140d4' target=_blank style='color:#2F92EE;'>#路易体#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93140, encryptionId=bf6093140d4, topicName=路易体)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=576436807451, createdName=longerg, createdTime=Wed May 19 18:30:52 CST 2021, time=2021-05-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1442878, encodeId=7d6914428e8a7, content=<a href='/topic/show?id=e112659308a' target=_blank style='color:#2F92EE;'>#淀粉样蛋白#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65930, encryptionId=e112659308a, topicName=淀粉样蛋白)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1774999170, createdName=ms7405317358118777, createdTime=Sat Jan 23 20:30:52 CST 2021, time=2021-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918978, encodeId=6c719189e8a8, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0f285454860, createdName=ms9000001867448015, createdTime=Fri Jan 22 14:24:02 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1048714, encodeId=1be31048e1453, content=老年人痴呆何药可用??, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=junJUN, createdTime=Fri Jan 22 08:30:52 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918906, encodeId=fd5d918906e7, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210122/5899e08c5ec24ba197427085f5a7f937/52507f2690ae436e8a2a5e63894e89ae.jpg, createdBy=52421699258, createdName=NeataVino, createdTime=Fri Jan 22 07:30:00 CST 2021, time=2021-01-22, status=1, ipAttribution=)]
    2021-01-22 ms9000001867448015

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2009097, encodeId=5542200909e05, content=<a href='/topic/show?id=3ed8e121172' target=_blank style='color:#2F92EE;'>#痴呆患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71211, encryptionId=3ed8e121172, topicName=痴呆患者)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e4aa106, createdName=crystal0562, createdTime=Fri Apr 23 03:30:52 CST 2021, time=2021-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2001210, encodeId=100d20012107c, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Wed Jul 28 22:30:52 CST 2021, time=2021-07-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1754944, encodeId=ef221e5494441, content=<a href='/topic/show?id=bf6093140d4' target=_blank style='color:#2F92EE;'>#路易体#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93140, encryptionId=bf6093140d4, topicName=路易体)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=576436807451, createdName=longerg, createdTime=Wed May 19 18:30:52 CST 2021, time=2021-05-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1442878, encodeId=7d6914428e8a7, content=<a href='/topic/show?id=e112659308a' target=_blank style='color:#2F92EE;'>#淀粉样蛋白#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65930, encryptionId=e112659308a, topicName=淀粉样蛋白)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1774999170, createdName=ms7405317358118777, createdTime=Sat Jan 23 20:30:52 CST 2021, time=2021-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918978, encodeId=6c719189e8a8, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0f285454860, createdName=ms9000001867448015, createdTime=Fri Jan 22 14:24:02 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1048714, encodeId=1be31048e1453, content=老年人痴呆何药可用??, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=junJUN, createdTime=Fri Jan 22 08:30:52 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918906, encodeId=fd5d918906e7, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210122/5899e08c5ec24ba197427085f5a7f937/52507f2690ae436e8a2a5e63894e89ae.jpg, createdBy=52421699258, createdName=NeataVino, createdTime=Fri Jan 22 07:30:00 CST 2021, time=2021-01-22, status=1, ipAttribution=)]
    2021-01-22 junJUN

    老年人痴呆何药可用??

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=2009097, encodeId=5542200909e05, content=<a href='/topic/show?id=3ed8e121172' target=_blank style='color:#2F92EE;'>#痴呆患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71211, encryptionId=3ed8e121172, topicName=痴呆患者)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e4aa106, createdName=crystal0562, createdTime=Fri Apr 23 03:30:52 CST 2021, time=2021-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2001210, encodeId=100d20012107c, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Wed Jul 28 22:30:52 CST 2021, time=2021-07-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1754944, encodeId=ef221e5494441, content=<a href='/topic/show?id=bf6093140d4' target=_blank style='color:#2F92EE;'>#路易体#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93140, encryptionId=bf6093140d4, topicName=路易体)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=576436807451, createdName=longerg, createdTime=Wed May 19 18:30:52 CST 2021, time=2021-05-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1442878, encodeId=7d6914428e8a7, content=<a href='/topic/show?id=e112659308a' target=_blank style='color:#2F92EE;'>#淀粉样蛋白#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65930, encryptionId=e112659308a, topicName=淀粉样蛋白)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1774999170, createdName=ms7405317358118777, createdTime=Sat Jan 23 20:30:52 CST 2021, time=2021-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918978, encodeId=6c719189e8a8, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0f285454860, createdName=ms9000001867448015, createdTime=Fri Jan 22 14:24:02 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1048714, encodeId=1be31048e1453, content=老年人痴呆何药可用??, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=junJUN, createdTime=Fri Jan 22 08:30:52 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918906, encodeId=fd5d918906e7, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210122/5899e08c5ec24ba197427085f5a7f937/52507f2690ae436e8a2a5e63894e89ae.jpg, createdBy=52421699258, createdName=NeataVino, createdTime=Fri Jan 22 07:30:00 CST 2021, time=2021-01-22, status=1, ipAttribution=)]
    2021-01-22 NeataVino

    0

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