ABSTRACT
Objective:To explore the effects of angiotens in Ⅳ on the hippocampus neuronal apoptosis and the cognitive function of diabetic rats.Methods:38 SD male rats were divided into normal group,diabetic model group and angiotensin Ⅳ treatment group randomly.Streptozotocin-diabetic rat model was established and learning and memory behaviors were investigated using a spatial version of the Morris water maze test.The expression of Bcl-xl of all rats was examined with immunohistochemical method.Meanwhile,the hippocampal neuronal apoptosis were measured by TUNEL.Results:Learning and memory grade in the angiotensin Ⅳ treatment group were better than diabetic model group(P
ABSTRACT
AIM: To study the effects of angiotensin Ⅳ(Ang Ⅳ) on growth of cultured neonatal rat cardiomyocytes.METHODS: Cardiomyocytes isolated from neonatal SD rat were cultured in vitro and divided into groups: control DMEM,10~(-6) mol/L Ang Ⅳ, 10~(-5) mol/L Ang Ⅳ.The effects of Ang Ⅳ were assayed as follows: protein synthesis was determined by modified Bradford method,and cell cycle by flow cytometry.RESULTS: Ang Ⅳ promoted protein synthesis(P