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首页> 外文期刊>Experimental Gerontology >Plasma renin-angiotensin system-regulating aminopeptidase activities are modified in early stage Alzheimer's disease and show gender differences but are not related to apolipoprotein E genotype
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Plasma renin-angiotensin system-regulating aminopeptidase activities are modified in early stage Alzheimer's disease and show gender differences but are not related to apolipoprotein E genotype

机译:血浆肾素-血管紧张素系统调节氨肽酶活性在阿尔茨海默氏病的早期阶段有所改变,并显示性别差异,但与载脂蛋白E基因型无关

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摘要

Alterations in blood pressure and components of the renin-angiotensin system (RAS) contribute to the development and progression of Alzheimer's disease (AD), resulting in changes that can lead or contribute to cognitive decline. Aspartyl aminopeptidase (ASAP), aminopeptidase A (APA), aminopeptidase N (APN) and aminopeptidase B (APB) catabolise circulating angiotensins, whereas insulin-regulated aminopeptidase (IRAP) has been described as the AT4 receptor. We have found in AD patients a significant decrease of APA activity in men but not in women, and of APN, APB and IRAP in both genders, when compared with control subjects. No changes were found in ASAP activity. Also, APN, APB and IRAP but not APA correlated with the Mini-Mental test, but no relationship with APOE genotype was found. We conclude that several components of the RAS are modified in AD patients, with gender differences. Furthermore, ROC analysis indicates that APN, APB and IRAP activities could be useful non-invasive biomarkers of AD from the earliest stages.
机译:血压和肾素-血管紧张素系统(RAS)组成的变化促进了阿尔茨海默氏病(AD)的发展和进程,导致可能导致或导致认知能力下降的变化。天冬氨酰氨肽酶(ASAP),氨肽酶A(APA),氨肽酶N(APN)和氨肽酶B(APB)分解代谢循环血管紧张素,而胰岛素调节性氨肽酶(IRAP)被描述为AT4受体。与对照组相比,我们发现在AD患者中,男性的APA活性显着下降,而女性则没有,而APN,APB和IRAP两种性别均显着下降。在ASAP活动中未发现任何变化。另外,APN,APB和IRAP但与APA不相关,与Mini-Mental测试相关,但与APOE基因型无关。我们得出的结论是,AD患者的RAS的某些成分发生了改变,存在性别差异。此外,ROC分析表明,从最早的阶段开始,APN,APB和IRAP活性可能是AD的有用的非侵入性生物标志物。

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