养肝利胆颗粒对豚鼠胆囊胆固醇结石成石率和血浆胆囊收缩素含量的影响

目的：探讨养肝利胆颗粒对豚鼠胆囊胆固醇结石成石率和血浆胆囊收缩素含量的影响。 方法：80只豚鼠随机分为正常组、模型组、养肝利胆颗粒组和熊去氧胆酸（ursodeoxycholic acid．UDCA）组。除正常组外。采用高胆固醇致石食饵诱发法建立豚鼠胆结石动物模型，并于造模当天开始灌胃治疗，养肝利胆颗粒组予养肝利胆颗粒1．81g／（kg·d），UDCA组予UDCA30．12mg／（kg·d），模型组和正常对照组灌胃等容量的生理盐水，连续7周。疗程结束后观察各组豚鼠一般情况变化和胆囊成石率，并用放射免疫法检测血浆胆囊收缩素（cholecystokinin，CCK）的含量。 结果：养肝利胆颗粒能明显改善胆结石豚鼠的一般情况及行为学体征，但不能恢复到正常水平。模型组豚鼠成石率（82．35％）明显高于正常对照组（5．26％）（P〈0．01），养肝利胆颗粒组和UDCA组豚鼠成石率分别为27．78％和38．89％，均明显低于模型组（P〈0．05）。模型组血浆CCK含量较正常对照组明显降低（P〈0．01）．养肝利胆颗粒组和UDCA组血浆CCK含量虽低于正常对照组，但均高于模型组，差异有统计学意义（P〈0．01）。养肝利胆颗粒组和UDCA组血浆CCK含量比较差异无统计学意义（P〉0．05）。 结论：养肝利胆颗粒能显著降低豚鼠胆结石的成石率，其作用机制可能与养肝利胆颗粒能提高豚鼠血浆CCK含量有关。

Effects of Yanggan Lidan Granule on rate of gallstone formation and content of plasma cholecystokinin in guinea pigs with induced cholesterol gallstones

OBJECTIVE: To explore the effects of Yanggan Lidan Granule (YGLDG), a compound traditional Chinese herbal medicine for nourishing liver and improving choleresis, on the rate of gallstone formation and content of plasma cholecystokinin in guinea pigs with induced cholesterol gallstones. METHODS: Eighty guinea pigs were randomly divided into 4 groups, which were normal control group, untreated group, YGLDG-treated group and ursodeoxycholic acid (UDCA)-treated group (n=20). Except the normal control group, gallstones were induced by high-cholesterol diet in the guinea pigs. YGLDG (1.81 g/kg daily) and UDCA (30.12 mg/kg daily) were given orally to guinea pigs in the corresponding group respectively for seven weeks; however, the guinea pigs of normal control group and untreated group were administered with normal saline. The physical signs of the guinea pigs and the rates of gallstone formation were examined, and the content of cholecystokinin (CCK) in the plasma was detected by radio-immunoassay. RESULTS: YGLDG could obviously improve the ethological signs of the guinea pigs. Gallstone formation rate of the untreated group (82.35%) was significantly increased as compared with that of the normal control group (5.26%) (P<0.01), while the gallstone formation rates of the YGLDG-treated group (27.28%) and UDCA-treated group (38.89%) were lower than that of the untreated group (P<0.05). The content of CCK in plasma of the untreated group was significantly lower than that of the normal control group (P<0.01), while CCK content of the YGLDG-treated group and UDCA-treated group was lower than that of the normal control group, but both of them were significantly higher than that of the untreated group (P<0.01). The difference of CCK levels between YGLDG-treated group and UDCA-treated group had no statistical significance (P>0.05). CONCLUSION: YGLDG can significantly decrease the rate of gallstone formation in guinea pigs. It may be related to elevating the content of CCK in the plasma.