PLoS One:额颞灰质萎缩可能与慢性肾病患者执行功能障碍相关

2015-12-27 MedSci MedSci原创

背景:众所周知,慢性肾脏疾病(CKD)患者的认知功能障碍的特点是执行功能障碍,而不是记忆功能障碍,确切的机制尚待进一步研究。本研究的主要目的是调查CKD患者灰质体积(GMV)和执行功能的相关性。设计,设置,参与者,测量:本研究招募了95名非透析CKD(NDD-CKD)的患者,无脑血管疾病史,对患者进行脑MRI扫描和连线实验(TMT)检查。TMT实验分为TMT-A和 TMT-B检查。从统计参数图8软

背景:众所周知,慢性肾脏疾病(CKD)患者的认知功能障碍的特点是执行功能障碍,而不是记忆功能障碍,确切的机制尚待进一步研究。本研究的主要目的是调查CKD患者灰质体积(GMV)和执行功能的相关性。

设计,设置,参与者,测量:本研究招募了95名非透析CKD(NDD-CKD)的患者,无脑血管疾病史,对患者进行脑MRI扫描和连线实验(TMT)检查。TMT实验分为TMT-A和 TMT-B检查。从统计参数图8软件的分割法进行T1加权MRI扫描,提取相对应灰质、白质和脑脊液。除以总颅内体积标准化GMV,计算灰质体积,白质体积及脑脊液体积。标准化的全脑体积被分为4大类:大脑额叶,顶叶,颞叶和枕叶。研究者应用多变量回归分析评估标准化GMV和TMT的相关性。

结果:标准化全脑GMV与TMT-A,TMT-B及ΔTMT(TMT-B减去TMT-A)得分呈显著负相关。校正相关混杂因素后,这些相关性仍然显著。采用多变量回归分析显示,标准化的额叶和颞叶的GMV,但不是顶叶和枕叶的GMV,与TMT-A、TMT-B与ΔTMT呈明显负相关。

结论:目前的研究表明标准化的GMV,尤其是额叶和颞叶GWV与执行功能相关。提示额颞灰质萎缩可能在NDD-CKD执行功能障碍相关。

原文出处:

Tsuruya K, Yoshida H, et al. Clinical Significance of Fronto-Temporal Gray Matter Atrophy in Executive Dysfunction in Patients with Chronic Kidney Disease: The VCOHP Study. PLoS One. 2015 Dec 3.

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    2016-10-10 chendoc252
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