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MCI患者胰岛素抵抗与认知及海马-内嗅皮层体积的关系 被引量:1

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摘要 目的:探讨轻度认知功能障碍(mild cognitive impairment,MCI)患者的胰岛素抵抗(insulin resistance,IR)程度与认知水平、海马-内嗅皮层体积变化的关系。方法:417例研究对象根据Petersen的MCI诊断标准分别纳入MCI组或正常认知组,MCI患者再据胰岛素敏感指数(insulin sensitivity index,ISI)纳入相对胰岛素抵抗组(MCI-rIR组)或相对无抵抗组(MCI-rnIR组),简易智力状态检查表(mini-mental state examination,MMSE)、临床记忆量表(clinical memory scale,CMS)进行认知评分,MRI测量海马-内嗅皮层体积,分析MCI患者IR程度与认知评分、海马-内嗅皮层体积的关系。结果:同正常认知组比较,MCI患者胰岛素抵抗程度更重,并存在病理性海马-内嗅皮层体积萎缩,萎缩同认知功能相关;MCI患者中,MCI-rIR组较MCI-rnIR组的海马-内嗅皮层体积萎缩更严重,总认知评分及多项认知功能更差,除外糖尿病患者后亦然;多元回归分析显示,MCI患者海马-内嗅皮层体积同胰岛素抵抗程度呈正相关,同年龄、空腹血糖、收缩压呈负相关。结论:MCI患者存在病理性海马、内嗅皮层萎缩,该萎缩能同相应的认知损伤相印证,且二者与胰岛素抵抗有关联。
出处 《南京医科大学学报(自然科学版)》 CAS CSCD 北大核心 2020年第7期1035-1038,1049,共5页 Journal of Nanjing Medical University(Natural Sciences)
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