摘要
目的观察加味茵陈四逆汤对胆道闭锁模型小鼠基质金属蛋白酶9(MMP9)及其抑制剂TIMP1、TIMP2基因表达的影响。方法 SPF级Balb/c新生鼠随机分成空白组、模型组和加味茵陈四逆汤高、中、低剂量组。新生鼠于出生24h内腹腔注射30ul 106PFU/ml的恒河猴轮状病毒(rhesus monkey rotavirus,RRV)构建胆道闭锁模型。用药1周后,各组肝脏行HE染色,RT-qPCR检测肝组织MMP9 mRNA、TIMP1 mRNA、TIMP2 mRNA的表达。结果加味茵陈四逆汤各组比模型组体重稍增、黄染改善,肝脏汇管区炎症有所减轻;加味茵陈四逆汤高、中、低剂量组MMP9 mRNA的表达比模型组低,但无统计学意义(P>0.05);加味茵陈四逆汤高、低剂量组TIMP1 mRNA的表达比模型组低(P<0.01);加味茵陈四逆汤高、中、低剂量组TIMP2 mRNA表达比模型组减少(P<0.01)。结论加味茵陈四逆汤能有效地改善恒河猴轮状病毒诱导的胆道闭锁小鼠的症状,可能是通过下调TIMP1 mRNA和TIMP2 mRNA来发挥作用的。
引文
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