Study on establishing hypertension animal models by adverse lifestyles and the antihypertensive effe

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OBJECTIVE Nowadays,with the living habits and diet structure changes,the morbidity and mortality of hypertension has been rising yearly,which induced by adverse lifestyles,excessive alcohol and poor diet.However,the animal models of hypertension resulted from adverse lifestyles have rarely been reported.It is essential to set up some more systematic models to study the characters of hypertension and evaluate the efficacy of traditional Chinese medicine(TCM).METHODS To build the rat model of human lifehabitual hypertension,SD rats had free access to alcohol with high-sucrose-fat diet(AHSFD),alcohol with high-fat diet(AHFD),high-sucrose-fat diet(HSFD),high-fat diet(HFD)and alcohol etc.Various of indicators were detected systematically to explore the features of hypertension models which included blood pressure(BP),liver and kidney functions,the lipid profiles and indexes quantifying TCM symptoms.Then we choose one of the stable and sustained animal models,studying the effects of RPA.E(which extracted from a TCM)on modulating the level of hypertension and the preliminary mechanism in this abstract.RESULTS ①The BP level,serum TC,TG,LDL-C of AHSFD-induced and AHFD-induced rats increased significantly,while the HDL-C reduced in the 4th week.② The BP level HSFD-induced rats increased significantly in the 6th week,serum TC,TG increased in 10 th week.③ The BP level of alcohol-induced rats increased significantly in the 9th week,serum TC,TG increased in 24 th week.④ The level of serum ALT,AST,UA and Cr of all model rats increased significantly after 12 weeks.Meanwhile the microcirculation increased significantly after8 weeks.⑤ After 4-week administration,RPA.E could significantly reduce BP of AHFD-induced hypertensive rats,and could reduce the serum TC,LDL-C,HDL-C,ALT,AST level after 8-week.CONCLUSION The rats induced by AHSFD,AHFD,HSFD and alcohol can raise BP obviously with underlying hepatic and kidney damage,the lipid profiles disorder and TCM symptoms change,while the AH(S)FD-induced hypertension models are earlier and more stable.RPA.E could mildly reduce BP level,and improve the lipid profiles disorders,hepatic damage,which reflects the characteristics of TCM on antihypertensive effects.The above models have their own characteristics,can be used to study the causes and pathogenesis of hypertension complicating metabolic disorder and the related treatment drug screening. OBJECTIVE Nowadays, with the living habits and diet structure changes, the morbidity and mortality of hypertension has been rising yearly, which induced by adverse lifestyles, excessive alcohol and poor diet. However, the animal models of hypertensive from adverse lifestyles have rarely been reported .It is essential to set up some more systematic models to study the characters of hypertension and evaluate the efficacy of traditional Chinese medicine (TCM) .METHODS To build the rat model of human life with bitter hypertension, SD rats had free access to alcohol with high- sucrose-fat diet (AHSFD), alcohol with high-fat diet (AHFD), high-sucrose-fat diet (HFD) and alcohol etc.Various of indicators were detected systematically to explore the features of hypertension models which included blood pressure (BP), liver and kidney functions, the lipid profiles and the databases identify TCM symptoms. If we choose one of the stable and sustained animal models, studying the effects of RPA.E (wh ich extracted from a TCM) on modulating the level of hypertension and the preliminary mechanism in this abstract. RESULTS ① The BP level, serum TC, TG, LDL-C of AHSFD-induced and AHFD-induced rats increased significantly, while the HDL-C reduced in the 4th week. ② The BP level HSFD-induced rats increased significantly in the 6th week, serum TC, TG increased in 10 th week. ③ The BP level of alcohol-induced rats increased significantly in the 9th week, serum TC, TG increased in 24 th week. ④ The level of serum ALT, AST, UA and Cr of all model rats increased significantly after 12 weeks. However, the microcirculation increased significantly after 8 weeks. ⑤ After 4-week administration, RPA.E could significantly reduce BP of AHFD-induced hypertensive rats, and could reduce the serum TC, LDL-C, HDL-C, ALT, AST level after 8-week. CONCLUSION The rats induced by AHSFD, AHFD, HSFD and alcohol can raise BP obviously with underlying hepatic and kidney damage, the lipid profiles disorder and TCM symptoms change, wh ile the AH(S) FD-induced hypertension models are earlier and more stable. RPA.E could mildly reduce BP level, and improve the lipid profiles disorders, hepatic damage, which reflects the characteristics of TCM on antihypertensive effects. Above above have have their own characteristics , can be used to study the causes and pathogenesis of hypertension complicating metabolic disorder and the related treatment drug screening.
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