Effects of sapogenin from zhimu (ZMS) and its isomer on learning and memory ability and muscarinic subtype M_1 receptor density in aged rats;

Effects of NGF and its stimuli on the M-acetylcholine receptor in the brain of aged rats;

Objective: To study the effect of supplemented Danggui Shaoyao San (DSS) and its disassembled prescriptions on function of lymphocyte in aged rats.

Change of intracellular calcium in brain cells of aged rats;

The effects of new compound of piperazinyl estrone on lumber veterbra in aged rats;

The effect of ZMS, an active component of Zhimu, on NGF and BDNF in brains of aged rats;

Effect of allitridi on the ATPase activities of cerebral cortex microsomes in renovascular hypertensive rats and senile rats;

Experimental studies of effect of liquorice on senile rat;

Objective:To observe the effect of Zuogui pill and Yougui pill on the morphologic changes of HPA axis organisms in senile rat.

Effect of extract of Ginkgo biloba leaves on activities of cerebral ATPase in old rats;

Methods Old rats were used to make models of middle cerebral artery occluded(MCAO).

Objective To study the anti-fatigue effect of Cynomorium songaricum flavone(CSF)on old rats.

Role of toll-like receptor 4 gene expression and TNF-α in multiple organ dysfunction syndrome in elderly rats;

Changes and roles of Toll-like receptor 4 mRNA expression in elderly rats with multiple organ dysfunction syndrome induced with oleic acid and lipopolysaccharide;

Objective: To investigate the effects and the possible mechanism(s) of diazepam (DZP) on isolated thoracic aorta rings pre-contracted by norepinephrine (NE) or potassium chloride (KCl) in old rats.