Neurology:ALS患者的PET表现与认知障碍相关

2015-11-24 MedSci MedSci原创

研究显示ALS患者队列中连续的额叶代谢障碍反映了临床和解剖学上的疾病进展的过程,从单纯ALS、伴有中间认知缺陷的ALS到ALS-FTD。伴有中间认知障碍的ALS患者在PET检查下显示独特的代谢模式。

目的:使用18F-FDG-PET检查患者,识别ALS(amyotrophic
lateral sclerosis ,肌萎缩性脊髓侧索硬化症)不同层面的认知缺陷的代谢特征。
 
方法:研究共纳入170例在都灵ALS中心接受脑部18F-FDG-PET检查的ALS患者,根据根据神经心理测试分为ALS-Cn组(正常认知,n =94),组ALS-FTD (全面额颞叶痴呆,n = 20), ALS-Ci患者(认知障碍尚不满足FTD诊断标准,n =37),普遍行为变化患者(n = 9)或不可分类的认知障碍患者(n= 10)。在各个认知亚组中进行18F-FDG-PET检查,并将各组间18F-FDG-PET检查结果进行比较。

结果:研究发现ALS-FTD组与ALS-Cn组相比额叶和前额叶的新陈代谢明显减少,ALS-Ci组显示额叶皮质的中间代谢率与ALS-Cn组相比降低,与ALS-FTD组相比升高。

所有亚组中额叶代谢减退与小脑、中脑和皮质脊髓束代谢亢进相关。认知能力下降越严重,PET显示代谢减低的脑区面积越大,18F-FDG摄取的统计学差异越大。
 
结论:研究显示ALS患者队列中连续的额叶代谢障碍反映了临床和解剖学上的疾病进展的过程,从单纯ALS、伴有中间认知缺陷的ALS到ALS-FTD。伴有中间认知障碍的ALS患者在PET检查下显示独特的代谢模式。
 
18F-FDG-PET允许医生无创评估神经退行性疾病患者皮质损伤负荷,可能有助于研究ALS疾病进展过程与神经心理测试的关联,显示可能存在的认知能力损害的早期代谢特征。
 
原始出处:

Antonio Canosa, Marco Pagani, Angelina Cistaro, et all. 18F-FDG-PET correlates of cognitive impairment in ALS. Neurology. Published online before print November 20,2015.


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    2017-02-13 李东泽

    很好,不错,以后会多学习

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=175823, encodeId=03111e58237d, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Feb 13 00:25:31 CST 2017, time=2017-02-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=141440, encodeId=7271141440a7, content=好,很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Fri Oct 07 09:31:38 CST 2016, time=2016-10-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1725938, encodeId=9f681e2593805, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Mon Jul 25 14:20:00 CST 2016, time=2016-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1999608, encodeId=8564199960856, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Tue Jun 28 09:20:00 CST 2016, time=2016-06-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331039, encodeId=53fb1331039bf, content=<a href='/topic/show?id=15e2140e438' target=_blank style='color:#2F92EE;'>#PET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14074, encryptionId=15e2140e438, topicName=PET)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTI5PdY90y5Jib8FnPhCXTR2d9v3K17epNSwB2eb0vmXUldNJl2e72S4unZTAHLAojicdVSialTDFHAxA/132, createdBy=78d82500042, createdName=ms7514935887898259, createdTime=Thu Nov 26 05:20:00 CST 2015, time=2015-11-26, status=1, ipAttribution=)]
    2016-10-07 李东泽

    好,很好,不错,以后会多学习

    0

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    2016-07-25 feather89
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    2016-06-28 yinhl1978
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肌萎缩侧索硬化症俗称渐冻症,患者运动神经会出现障碍,导致全身肌肉逐渐变得无力。日本研究人员日前宣布,他们发现一种蛋白质能够改善运动障碍等症状,有望在此基础上开发出治疗渐冻症的方法。   渐冻症患者约有10%属于遗传性患病。由于不清楚详细的致病原因,医学界一直没有找到根治渐冻症的方法。     日本京都府立医科大学和京都工艺纤维大学的研究人员通过减弱

Neurology:TBK1无效突变易引起额颞叶痴呆和肌萎缩性脊髓侧索硬化症

这项比利时临床患者队列研究发现TBK1 LOF突变是紧随C9orf72 和GRN之后,引起临床FTD的第三大常见原因,同时TBK1 LOF突变也是紧随 C9orf72之后引起临床ALS的第二大常见原因。这些发现说明FTD和ALS实际上属于一种连续的谱系疾病。

Cell Res:肌萎缩性脊髓侧索硬化症(渐冻症)转基因猪模型建立

近日,记者在中科院广州生物医药与健康研究院获悉,该院研究员赖良学与中科院遗传与发育生物学研究所教授李晓江、澳大利亚蒙纳什大学教授肖志成、南方医科大学教授姜晓丹等联合攻关,成功培育出渐冻人症模型猪。相关研究在线发表于《细胞研究》上。 渐冻人症是一种渐进和致命的神经退行性疾病,病人由于上、下运动神经元都退化和死亡并停止传送讯息到肌肉,导致肌肉逐渐萎缩,最后神经系统完全丧失控制随意运动的能力,导致病人瘫