Alzheimer's disease is a form of presenile dementia.

阿尔茨海默氏病是呆的一种形式。

This article reviews the progress on the relationship between chronic hypoxia with cerebral hypoperfusion and presenile dementia mechanism.

本文就缺氧/大脑低灌注与呆的发病机制相关研究的进展作一综述。