Effect of Qingxinkaiqiao compound on cortical mRNA expression of the apoptosis-related genes Bcl-2, BAX, caspase-3, and Aβ in an Alzheimer's disease rat model

QK treatment resulted in significantly up-regulated Bcl-2 expression, down-regulated Bax, caspase-3, and Aβ expression, and reduced numbers of apoptotic cells in the cortex.