AIM： To investigate the effects of Danshao Huaxian （DSHX） capsules, a preparation of traditional Chinese medicine, on the expression of matrix metalloproteinase-1 （MMP-1）, and tissue inhibitor of metalloproteinas...AIM： To investigate the effects of Danshao Huaxian （DSHX） capsules, a preparation of traditional Chinese medicine, on the expression of matrix metalloproteinase-1 （MMP-1）, and tissue inhibitor of metalloproteinase-1 （TIMP-1） in the fibrous livers of rats. METHODS： Eighty male Wistar rats were randomly divided into normal control group （group A）, CCl4-induced hepatic fibrosis group （group B）, non-DSHX-treated group （group C）, low dose-treated group （group D）, and high dose-treated group （group E）. Fibrous liver models in rats were induced by subcutaneous injection of CCI4, oral administration of alcohol and high-lipid/low-protein diet for 8 wk. After the models were established, the rats in groups D and E were orally given a low dose （0.5 g/kg） and a high dose （1.0 g/kg） of DSHX daily for 8 wk, respectively. Then, the liver indexes, serum hyaluronic acid （HA） and alanine aminotransferase （ALT） were examined. The degree of hepatic fibrosis was evaluated by optical microscopy. Hydroxyproline （Hyp） in the urine was determined, and the expression of MMP-1 and TIMP-1 was detected by immunohistochemical techniques. RESULTS： In groups D and E, the liver indexes, levels of serum HA and ALT reduced and development of hepatic fibrosis weakened significantly. The urinary Hyp and expression of MMP-1 in the liver tissues elevated, but the expression of TIMP-1 decreased obviously, as compared to groups B and C.CONCLUSION： DSHX enhances the expression of MMP-1 but decreases that of TIMP-1 in liver tissues of CCI4-induced hepatic fibrotic rats, which may result in its elevated activity that contributes to fighting against hepatic fibrosis.展开更多
BACKGROUND: The prognosis of decompensated cirrhosis resulting from chronic hepatitis B is poor, and the benefits of treatment with interferon are ourweight serious sideeffects and the risk of fatal exacerbation of di...BACKGROUND: The prognosis of decompensated cirrhosis resulting from chronic hepatitis B is poor, and the benefits of treatment with interferon are ourweight serious sideeffects and the risk of fatal exacerbation of disease. Danshao Huaxian capsule rapidly reduces hepatitis B virus(HBV)-DNA in serum to undetectable levels. METHODS: A total of 35 patients with chronic hepatitis B and decompensated cirrhosis were treated with Danshao Huaxian 1.2g. po. tid daily. Before the treatment, HBVDNA in serum was positive in all patients. Ten patients had Child-Pugh class B and 25, class C hepatitis B. Seven patients underwent liver transplantation within 6 months of initial treatment. Of the 10 patients of class B, 5 died within 6 months, and the other 5 did not complete the treatment for some reasons; the 25 patients of class C were treated for at least 6 months (mean =19 months). RESULTS: In most of the 25 patients, liver function was improved slowly but markedly after 9 months of treatment, showing a decreased level of serum bilirubin from 67±13 to 30±4μmol/L (P<0.05, baseline vs.6 months), an increased level of serum albumin from 27±1 to 34±1 g/L(P<0.05) and a decreased level of Child-Pugh score from 10.3±0.4 to 7.5+0.5 (P<0.05). Three patients developed resistance to Danshao Huaxian because of a mutation in the YMDD motif, but liver function was not deteriorated. Inhibition of viral replication with Danshao Huaxian resulted in a significant improvement of liver function in patients with decompensated HBV cirrhosis, but the long-term results remain uncertain. CONCLUSION: Danshao Huaxian capsule is effective in inhibiting viral DNA replication in patients with decompensated cirrhosis and making clinical improvement.展开更多
目的探讨中药丹芍化纤胶囊对实验性肝纤维化大鼠金属蛋白酶组织抑制因子-1(tissue inhibi- tor of metalloproteinase-1,TIMP-1)表达的影响。方法雄性Wistar大鼠80只分为正常组、肝纤维化模型组、自然恢复组、低剂量治疗组、高剂量治疗...目的探讨中药丹芍化纤胶囊对实验性肝纤维化大鼠金属蛋白酶组织抑制因子-1(tissue inhibi- tor of metalloproteinase-1,TIMP-1)表达的影响。方法雄性Wistar大鼠80只分为正常组、肝纤维化模型组、自然恢复组、低剂量治疗组、高剂量治疗组,除正常组外,其余采用CCl_4、饮酒、高脂低蛋白饮食等复合病因刺激制备肝纤维化动物模型8周,然后两治疗组分别予以低剂量(0．5g/kg)、高剂量(1．0g/kg)丹芍化纤胶囊灌胃治疗8周。实验结束后测定肝脏指数、血清透明质酸(hyaluronic acid,HA)及谷丙转氨酶(alanine aminotransferase,ALT),光镜下观察肝组织纤维化程度,检测尿羟脯氨酸(hydroxyproline,Hyp)排出量,同时用免疫组化SABC法检测肝组织中,TIMP-1的表达。结果治疗组与模型组、自然恢复组比较：肝脏指数、血清HA及ALT显著下降(P＜0．05,P＜0．01)；肝纤维化程度显著减轻(P＜0．05,P＜0．01)；尿Hyp排出明显增加(P＜0．01)；治疗组肝组织中TIMP-1的表达与模型组和自然恢复组比较则显著降低(P＜0．05,P＜0．01)。结论丹芍化纤胶囊能够抑制肝纤维化组织中,TIMP-1的表达,从而减弱了其对基质金属蛋白酶-1 (matrix metalloproteinase-1,MMP-1)的抑制作用,促进了细胞外基质的降解,可能是丹芍化纤胶囊抗肝纤维化作用的机制之一。展开更多
基金Supported by the Foundation of Traditional Chinese Medicine Modernization Project of Guizhou Province, No. 200409
文摘AIM： To investigate the effects of Danshao Huaxian （DSHX） capsules, a preparation of traditional Chinese medicine, on the expression of matrix metalloproteinase-1 （MMP-1）, and tissue inhibitor of metalloproteinase-1 （TIMP-1） in the fibrous livers of rats. METHODS： Eighty male Wistar rats were randomly divided into normal control group （group A）, CCl4-induced hepatic fibrosis group （group B）, non-DSHX-treated group （group C）, low dose-treated group （group D）, and high dose-treated group （group E）. Fibrous liver models in rats were induced by subcutaneous injection of CCI4, oral administration of alcohol and high-lipid/low-protein diet for 8 wk. After the models were established, the rats in groups D and E were orally given a low dose （0.5 g/kg） and a high dose （1.0 g/kg） of DSHX daily for 8 wk, respectively. Then, the liver indexes, serum hyaluronic acid （HA） and alanine aminotransferase （ALT） were examined. The degree of hepatic fibrosis was evaluated by optical microscopy. Hydroxyproline （Hyp） in the urine was determined, and the expression of MMP-1 and TIMP-1 was detected by immunohistochemical techniques. RESULTS： In groups D and E, the liver indexes, levels of serum HA and ALT reduced and development of hepatic fibrosis weakened significantly. The urinary Hyp and expression of MMP-1 in the liver tissues elevated, but the expression of TIMP-1 decreased obviously, as compared to groups B and C.CONCLUSION： DSHX enhances the expression of MMP-1 but decreases that of TIMP-1 in liver tissues of CCI4-induced hepatic fibrotic rats, which may result in its elevated activity that contributes to fighting against hepatic fibrosis.
基金This study is supported by a grant from the Primary Sciences and Technology Project of Guizhou Province, China (No. 961023).
文摘BACKGROUND: The prognosis of decompensated cirrhosis resulting from chronic hepatitis B is poor, and the benefits of treatment with interferon are ourweight serious sideeffects and the risk of fatal exacerbation of disease. Danshao Huaxian capsule rapidly reduces hepatitis B virus(HBV)-DNA in serum to undetectable levels. METHODS: A total of 35 patients with chronic hepatitis B and decompensated cirrhosis were treated with Danshao Huaxian 1.2g. po. tid daily. Before the treatment, HBVDNA in serum was positive in all patients. Ten patients had Child-Pugh class B and 25, class C hepatitis B. Seven patients underwent liver transplantation within 6 months of initial treatment. Of the 10 patients of class B, 5 died within 6 months, and the other 5 did not complete the treatment for some reasons; the 25 patients of class C were treated for at least 6 months (mean =19 months). RESULTS: In most of the 25 patients, liver function was improved slowly but markedly after 9 months of treatment, showing a decreased level of serum bilirubin from 67±13 to 30±4μmol/L (P<0.05, baseline vs.6 months), an increased level of serum albumin from 27±1 to 34±1 g/L(P<0.05) and a decreased level of Child-Pugh score from 10.3±0.4 to 7.5+0.5 (P<0.05). Three patients developed resistance to Danshao Huaxian because of a mutation in the YMDD motif, but liver function was not deteriorated. Inhibition of viral replication with Danshao Huaxian resulted in a significant improvement of liver function in patients with decompensated HBV cirrhosis, but the long-term results remain uncertain. CONCLUSION: Danshao Huaxian capsule is effective in inhibiting viral DNA replication in patients with decompensated cirrhosis and making clinical improvement.
文摘目的探讨中药丹芍化纤胶囊对实验性肝纤维化大鼠金属蛋白酶组织抑制因子-1(tissue inhibi- tor of metalloproteinase-1,TIMP-1)表达的影响。方法雄性Wistar大鼠80只分为正常组、肝纤维化模型组、自然恢复组、低剂量治疗组、高剂量治疗组,除正常组外,其余采用CCl_4、饮酒、高脂低蛋白饮食等复合病因刺激制备肝纤维化动物模型8周,然后两治疗组分别予以低剂量(0．5g/kg)、高剂量(1．0g/kg)丹芍化纤胶囊灌胃治疗8周。实验结束后测定肝脏指数、血清透明质酸(hyaluronic acid,HA)及谷丙转氨酶(alanine aminotransferase,ALT),光镜下观察肝组织纤维化程度,检测尿羟脯氨酸(hydroxyproline,Hyp)排出量,同时用免疫组化SABC法检测肝组织中,TIMP-1的表达。结果治疗组与模型组、自然恢复组比较：肝脏指数、血清HA及ALT显著下降(P＜0．05,P＜0．01)；肝纤维化程度显著减轻(P＜0．05,P＜0．01)；尿Hyp排出明显增加(P＜0．01)；治疗组肝组织中TIMP-1的表达与模型组和自然恢复组比较则显著降低(P＜0．05,P＜0．01)。结论丹芍化纤胶囊能够抑制肝纤维化组织中,TIMP-1的表达,从而减弱了其对基质金属蛋白酶-1 (matrix metalloproteinase-1,MMP-1)的抑制作用,促进了细胞外基质的降解,可能是丹芍化纤胶囊抗肝纤维化作用的机制之一。
