目的:观察丹酚酸B盐(salvianolic acid B,SA-B)对肝纤维化大鼠肝组织转化生长因子-β1 (TGF-β1)、基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶组织抑制因子-2(TIMP-2)表达的影响,并探讨SA-B抗肝纤维化的可能机制.方法:♂SD大鼠30只随机...目的:观察丹酚酸B盐(salvianolic acid B,SA-B)对肝纤维化大鼠肝组织转化生长因子-β1 (TGF-β1)、基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶组织抑制因子-2(TIMP-2)表达的影响,并探讨SA-B抗肝纤维化的可能机制.方法:♂SD大鼠30只随机分为正常对照组、模型组和丹酚酸B治疗组,以5 mL/L的二甲基亚硝胺(DMN)建立肝纤维化模型,治疗组在造模4 wk后给予SA-B治疗4 wk.应用HE,Masson染色观察肝组织病理纤维化分级,全自动生化分析仪检测ALT、AST和Alb,放免法检测HA和LN,S-P免疫组织化学方法检测TGF-β1、MMP-2和TIMP-2蛋白质的表达.结果:与模型组相比,SA-B能改善肝纤维化大鼠肝脏病理组织学结构,治疗组血清ALT、AST、HA和LN水平明显减低(87.0±28.7 U/L vs 190.4±27.4 U/L.85.6±25.3 U/L vs 178.2±15.9 U/L,179.7±32.8 mg/L vs 433.3±86.1 mg/L,135.6±21.1 mg/L vs 224.7±29.2 mg/L,均P<0.01),经SA-B干预后TGF-β1和TIMP-2表达明显下降,与模型组相比有显著性差异(18.53±2.54 vs 12.78±2.65,21.88±3.83 vs 14.69±4.51,均P<0.01),而MMP-2表达水平无明显变化.结论:SA-B能改善肝纤维化大鼠肝脏病理组织学结构,可能通过抑制TGF-β1和TIMP-2表达而促进肝纤维化的逆转.展开更多
Objective: Try to find out the objective parameters of Syndrome Differentiation of diabetic nephropathy. Methods: By radio-immunoassay technique, some parameters, including glucoprotein, microglobulins, immunoglobulin...Objective: Try to find out the objective parameters of Syndrome Differentiation of diabetic nephropathy. Methods: By radio-immunoassay technique, some parameters, including glucoprotein, microglobulins, immunoglobulins, etc. of 41 diabetic nephropathy patients of the Deficiency of Spleen-Kidney and Qiblood type and Yang Deficiency causing edema with upward gush of Turbid Yin type were measured and analysed. Results: β2-microglobulin, α1-microglobulin in blood rose significantly in both types. There was significant difference between the two types in microglobulins, also in atrial natriuretic polypeptins, pancreatic glucagon in blood, and β2-microglobulin, immunoglobulin G, albumin, secretory immunoglobulin A in urine. Conclusion:Above-mentioned parameters offered some objective data on Syndrome Differentiation of diabetic nephropathy and this is vital in guiding the Syndrome Differentiation and treatment of this disease.展开更多
文摘目的:观察丹酚酸B盐(salvianolic acid B,SA-B)对肝纤维化大鼠肝组织转化生长因子-β1 (TGF-β1)、基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶组织抑制因子-2(TIMP-2)表达的影响,并探讨SA-B抗肝纤维化的可能机制.方法:♂SD大鼠30只随机分为正常对照组、模型组和丹酚酸B治疗组,以5 mL/L的二甲基亚硝胺(DMN)建立肝纤维化模型,治疗组在造模4 wk后给予SA-B治疗4 wk.应用HE,Masson染色观察肝组织病理纤维化分级,全自动生化分析仪检测ALT、AST和Alb,放免法检测HA和LN,S-P免疫组织化学方法检测TGF-β1、MMP-2和TIMP-2蛋白质的表达.结果:与模型组相比,SA-B能改善肝纤维化大鼠肝脏病理组织学结构,治疗组血清ALT、AST、HA和LN水平明显减低(87.0±28.7 U/L vs 190.4±27.4 U/L.85.6±25.3 U/L vs 178.2±15.9 U/L,179.7±32.8 mg/L vs 433.3±86.1 mg/L,135.6±21.1 mg/L vs 224.7±29.2 mg/L,均P<0.01),经SA-B干预后TGF-β1和TIMP-2表达明显下降,与模型组相比有显著性差异(18.53±2.54 vs 12.78±2.65,21.88±3.83 vs 14.69±4.51,均P<0.01),而MMP-2表达水平无明显变化.结论:SA-B能改善肝纤维化大鼠肝脏病理组织学结构,可能通过抑制TGF-β1和TIMP-2表达而促进肝纤维化的逆转.
文摘Objective: Try to find out the objective parameters of Syndrome Differentiation of diabetic nephropathy. Methods: By radio-immunoassay technique, some parameters, including glucoprotein, microglobulins, immunoglobulins, etc. of 41 diabetic nephropathy patients of the Deficiency of Spleen-Kidney and Qiblood type and Yang Deficiency causing edema with upward gush of Turbid Yin type were measured and analysed. Results: β2-microglobulin, α1-microglobulin in blood rose significantly in both types. There was significant difference between the two types in microglobulins, also in atrial natriuretic polypeptins, pancreatic glucagon in blood, and β2-microglobulin, immunoglobulin G, albumin, secretory immunoglobulin A in urine. Conclusion:Above-mentioned parameters offered some objective data on Syndrome Differentiation of diabetic nephropathy and this is vital in guiding the Syndrome Differentiation and treatment of this disease.
