Comparison of different regimens in isoprenaline-induced chronic heart failure models
10.3969/j.issn.1005-4847.2024.02.003
- VernacularTitle:异丙肾上腺素诱导慢性心衰模型不同方案的比较
- Author:
Yuquan TAN
1
;
Junyu ZHANG
;
Meng YANG
;
Fei WANG
;
Senjie ZHONG
;
Lin LI
;
Zhixi HU
Author Information
1. 湖南中医药大学中医诊断研究所,长沙 410208
- Keywords:
isoprenaline;
chronic heart failure;
HFpEF;
model preparation
- From:
Acta Laboratorium Animalis Scientia Sinica
2024;32(2):161-167
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare animal models of chronic heart failure(CHF)prepared by three different protocols,to establish a stable,reliable,and reproducible mouse model of CHF.Methods Twenty-five male C57BL/6J mice were divided randomly into four groups:a blank group,model A group(MA group),model B group(MB group),and model C group(MC group).The model groups adopted different preparation protocols for continuous injection of isoprenaline.The MA group and MB group were dose-decreasing models:MA group:subcutaneous injection of 10 mg/kg on day 1,5 mg/kg on day 2,2.5 mg/(kg·d)on days 3～30,total 30 days;and MB group:subcutaneous injection of 20 mg/kg on day 1,10 mg/kg on day 2,5 mg/(kg·d)on days 3～14,total 14 days.The MC group used a constant dose of intraperitoneal injection of 7.5 mg/(kg·d)for 28 days.The day after the final injection,the survival and model-formation rates for each group of mice were calculated.Cardiac function was measured by cardiac ultrasound and serum levels of N-terminal pro B-type natriuretic peptide,interleukin-6,and tumor necrosis factor-α were measured.Results CHF was successfully induced in all the model groups after all injections at the end of the fourth week.However,comprehensive test result showed that the MC model was the most stable.Conclusions An isoprenaline-induced mouse model of CHF using constant intraperitoneal injection of 7.5 mg/(kg·d)for 28 days may be the most suitable model for subsequent research on traditional Chinese medicine.
