Protective effects of Ginkgo biloba, Panax ginseng, and Schizandra chinensis extract on liver injury in rats

This study investigated the effects of the combined extracts of Ginkgo biloba, Panax ginseng, and Schizandra chinensis at different doses on hepatic antioxidant status and fibrosis in rats with carbon tetrachloride (CCl4)-induced liver injury. Male Sprague-Dawley rats (n = 8-12 per group) were divided into the control, CCl4, CCl4 + silymarin (0.35%), CCl4 + low-dose herbal extract (0.24% of Ginkgo biloba, Panax ginseng, and Schizandra chinensis extract at 1:1:1; LE), and CCl4 + high-dose herbal extract (1.20% of the same herbal extract; HE) groups. Silymarin or herbal extract was orally given to rats a week before chronic intraperitoneal injection with CCl4 for 6 weeks. The pathological results showed that herbal extract suppressed hepatic bile duct proliferation, and low-dose herbal extract inhibited liver fibrosis. Hepatic superoxide dismutase (SOD) activity was lower in the CCl4 group, but there was no difference in the silymarin or herbal extract treated groups compared to the control group. Hepatic catalase activity and the ratio of reduced to oxidized glutathione were significantly higher (p < 0.05) in the HE group than those in the CCl4 group. Silymarin and herbal extract reversed the impaired hepatic total antioxidant status (p < 0.05). Herbal extract partially reduced the elevated hepatic lipid peroxides. Hepatic transforming growth factor-beta1 (TGF-beta1) level decreased significantly (p < 0.05) in the LE group. Therefore, high-dose herbal extract improved hepatic antioxidant capacity through enhancing catalase activity and glutathione redox status, whereas low-dose herbal extract inhibited liver fibrosis through decreasing hepatic TGF-beta1 level in rats with CCl4-induced liver injury.     

枸杞多糖对肝纤维化大鼠血液及肝组织中IGF-2和IGFBP-2表达的影响

目的 观察枸杞多糖对肝纤维化大鼠血液及肝组织中胰岛素样生长因子-2(IGF-2)和胰岛素样生长因子结合蛋白-2(IGFBP-2)表达的影响,探讨枸杞多糖抑制肝纤维化的作用机制.方法 取健康SD大鼠18只,采用胆总管结扎法制备肝脏纤维化大鼠模型,将造模成功大鼠随机分为模型组和枸杞多糖组各6只,另选取同品种的正常SD大鼠6...     

JinSanE decoction, a chinese herbal medicine, inhibits expression of TGF-beta1/Smads in experimental hepatic fibrosis in rats

The study is to investigate the effects of a Chinese herbal medicine, JinSanE decoction, on the TGF-beta1/Smads signal transduction pathway in a carbon tetrachloride (CCl(4))-induced hepatic fibrosis model in rats. Rats were randomly divided into 4 study groups: namely, a normal control group, a hepatic fibrosis model group, and 2 treatment groups with different doses of JinSanE (6 and 12 g/kg). Ten rats in each group were sacrificed at 4 and 8 weeks after exposure to CCl(4) respectively. The levels of TGF-beta1 and TRII mRNA in liver tissue were analyzed by RT-PCR. The expressions of TGF-beta1, Smad3 and Smad7 in liver tissues were evaluated by immunohistochemistry. The liver histopathology was examined by hematoxylin and eosin (HE) staining and electron microscopy respectively. The liver hydroxyproline (HYP), liver function and hyaluronic acid (HA) were examined by biochemistry and radioimmunoassay (RIA) respectively. Compared with the hepatic fibrosis model group, the levels of TGF-beta1, TRII mRNA and Smad3 expression significantly decreased in the 2 treatment groups. The expression of Smad7 was significantly increased in the liver of the rats treated with JinSanE (p < 0.05 or p < 0.01). The histological changes of fibrotic liver were obviously improved in the treatment rats. The levels of liver HYP, serum liver function and HA were also remarkably improved in the treatment rats. Moreover, the effects of JinSanE occurred in a dose- and time-dependent manner in the process of the protection of liver injury and fibrosis. JinSanE decoction had a protective effect on liver injury and could ameliorate hepatic fibrosis in rats. The mechanisms might be associated with their effects of down-regulating TGF-beta1, TRII mRNA and Smad3, and up-regulating Smad7.     

Effects and mechanisms of crude astragalosides fraction on liver fibrosis in rats

Astragalosides is the major active constituent of Radix Astragali. The present study was carried out to investigate the effect of crude astragalosides fraction (CAF) on rats liver fibrosis and its possible mechanisms. Hepatic fibrosis was induced by subcutaneous injection with 50% CCl(4) in Sprague-Dawley rats. The amount of CCl(4) administered was 1 mg kg(-1). The alanine aminotransferase (ALT), aspartate aminotransferase (AST) levels in plasma and hydroxyproline (Hyp), malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione peroxidase (GSH-px) contents in liver tissue were assayed by spectrophotometry. The hyaluronic acid (HA) and procollagen III (PC III) were assessed by radioimmunoassay. Tumor necrosis factor-alpha (TNF-alpha) and transforming growth factor-beta1 (TGF-beta1) levels in culture supernatants of Kupffer cells (KCs) were determined with ELISA. Liver samples collected after 8 weeks of CCl(4) treatment were stained with hematoxylin-eosin (HE) and massion, and scored. Intragastric administration of CAF (10, 20 and 40 mg kg(-1)) significantly decreased indices of liver and spleen, the serum transaminase activities, HA and PC III levels, and Hyp and MDA contents in liver tissue in rats of hepatic fibrosis. Decreased SOD and GSH-px levels were reversed after administration of CAF. Histopathological scores showed CAF had inhibitory effect on the progression of hepatic fibrosis. In the in vitro experiments, CAF significantly reduced TNF-alpha and TGF-beta1 levels in culture supernatants of KCs. The results showed CAF significantly inhibited the progression of hepatic fibrosis induced by CCl(4), and the inhibitory effect of CAF on hepatic fibrosis might be associated with its ability to scavenge free radical and inhibit the production of TNF-alpha and TGF-beta1 from activated KCs.     

抗纤Ⅰ号复方药物血清对肝星状细胞内钙离子浓度的影响

目的:研究抗纤Ⅰ号方药防治肝纤维化的分子机制,并探讨该药预防、治疗门脉高压的可行性.方法:制备大鼠含抗纤Ⅰ号药物血清,分别用药物血清和四氯化碳(CCl4)处理大鼠肝星状细胞(HSCs),作用24h后,以Fluo-3AM为细胞内Ca2 荧光指示剂负载细胞,通过激光共聚焦显微镜观察细胞内Ca2 的变化.采用正交设计方法,研究不同浓度CCl4、抗纤Ⅰ号方药物血清及其作用的先后顺序和二者作用的时间间隔对肝星状细胞内Ca2 浓度的影响.结果:不同浓度抗纤Ⅰ号方药物血清、CCl4及其作用的前后顺序对细胞内Ca2 浓度有显著影响,两因素作用的时间间隔对结果影响无显著性.CCl4在5mmol/L～15mmol/L范围内显著增加HSC内Ca2 浓度,5%～20%抗纤Ⅰ号方药物血清明显降低Ca2 浓度.结论:抗纤Ⅰ号方药物具有防治肝纤维化和门脉高压作用,其机理可能与其缓解细胞内钙超载有关.     

Preventive and curative effect of Lygodium flexuosum (L.) Sw. on carbon tetrachloride induced hepatic fibrosis in rats

The preventive and curative effect of Lygodium flexuosum on experimentally induced hepatic fibrosis by carbon tetrachloride (CCl(4)) was evaluated in rats. Hepatic fibrosis was induced in male Wistar rats by CCl(4) administration (150 microL/100g rat weight, oral) twice a week for 10 weeks. In preventive treatment daily doses of Lygodium flexuosum n-hexane extract (200 mg/kg, p.o) was administered for 10 weeks. In curative treatment Lygodium flexuosum extract (200 mg/kg, p.o) was given for 2 weeks after the establishment of fibrosis for 10 weeks. Treatment with CCl(4) caused a significant decrease in body and liver weight. Lygodium flexuosum n-hexane extract prevented or reversed the decline in body and liver weight. Treatment with the extract prevented or restored the elevation of serum AST, ALT and LDH levels. Lygodium flexuosum treatment remarkably prevented or reversed an increase in liver hydroxyproline content in chronically treated rats. Histopathological changes of hepatic lesions induced by CCl(4) were significantly (p < or = 0.05) improved by treatment with Lygodium flexuosum. These results support that Lygodium flexuosum exerts effective protection in carbon tetrachloride induced hepatic fibrosis in rats.     

湖北海棠叶总黄酮抗CCl4所致大鼠肝纤维化作用研究

目的:研究湖北海棠叶总黄酮对四氯化碳(CCl4)所诱导的大鼠肝纤维化的影响,并探讨其可能的作用机制。方法:腹腔注射2ml/kg CCl4橄榄油溶液制备大鼠肝纤维化模型。首次注射后分别灌胃给药湖北海棠叶总黄酮120mg/kg和60mg/kg,每天一次,共8周。测定血清丙氨酸氨基转移酶、天冬氨酸氨基转移酶、透明质酸、羟脯氨酸、β1-转化生长因子以及肝组织中总抗氧化能力、丙二醛含量和总超氧化物歧化酶的活性;用免疫组化方法定量肝组织中α-平滑肌肌动蛋白的表达。结果:与模型组比较,湖北海棠叶总黄酮能够调低血清丙氨酸氨基转移酶、天冬氨酸氨基转移酶、透明质酸、羟脯氨酸、β1-转化生长因子含量,降低肝组织丙二醛含量,增加肝组织中总抗氧化能力和总超氧化物歧化酶活性,降低α-平滑肌肌动蛋白的表达;病理学切片显示湖北海棠叶总黄酮能明显减轻CCl4引起的大鼠肝损伤及纤维化程度。结论:湖北海棠叶总黄酮在实验的120mg/kg和60mg/kg两个剂量组对CCl4致大鼠肝纤维化都有防治作用,作用机制可能与其抗氧化作用有关,湖北海棠叶总黄酮能能增强组织抗氧化能力,降低CCl4引起的脂类过氧化,保护细胞膜免受损伤,抑制β1-转化生长因子等具有加重肝纤维化程度的生物因子的表达,减轻肝纤维化程度。     

两种不同治法对肝纤维化大鼠肝组织TGF-β1及其mRNA表达的影响

目的：研究两种不同中药复方对CCl4致肝纤维化大鼠肝组织转化生长因子-β1及mRNA表达的影响,探讨不同中医治法防治肝纤维化的作用机制。方法：皮下注射法制备CCl4大鼠肝纤维化模型,给予两种不同中药复方煎剂灌胃,观察大鼠肝组织匀浆TGF-β1浓度及TGF-β1mRNA表达。结果：与空白对照组比较,模型组大鼠TGF-β1的mRNA和蛋白水平均明显异常表达;治疗1组、2组均可降低肝组织匀浆TGF-β1含量及TGF-β1mRNA表达水平,与模型组比较有显著性差异（P〈0.01或P〈0.05）,尤以滋肾清肝饮组疗效更加明显。结论：滋肾清肝化瘀法与滋肾化瘀法皆可有效防治CCl4大鼠肝纤维化,配伍清热利湿解毒中药后作用可能更加明显。     

Protective effects of total flavonoids of Bidens pilosa L. (TFB) on animal liver injury and liver fibrosis

The hepatoprotective effects of total flavonoids of Bidens pilosa L. (TFB), a traditional Chinese medicine were evaluated in carbon tetrachloride (CCl(4))-induced liver injury in mice and rats. Total flavonoids of Bidens pilosa L. (25, 50 and 100mg/kg) were administered via gavage daily for 10 days to CCl(4)-treated mice as well as TFB (30, 60 and 90mg/kg) administered for 6 weeks to CCl(4)-treated rats. Liver index (liver weight/body weight), serum levels of transaminases (alanine aminotransferase, ALT and aspartate aminotransferase, AST), hepatic malondialdehyde (MDA) content, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities were evaluated following the 10 days treatment in mice. In addition histopathologic changes and nuclear factor-kappaB (NF-kappaB) expression of the liver were detected with hematoxylin-eosin (HE) and immunohistochemistry methods, respectively. The results showed that TFB (50 and 100mg/kg) effectively reduced the CCl(4)-induced elevated liver index, serum ALT, AST levels, hepatic MDA content, and restored hepatic SOD, GSH-Px activities in acute liver injury mice. TFB (60 and 90mg/kg) treatment significantly inhibited NF-kappaB activation in liver fibrosis of rats. The histopathological analysis suggested that TFB reduced the degree of liver injury in mice and severity of liver fibrosis in rats. These results suggested that TFB had a protective and therapeutic effect on animal liver injury, which might be associated with its antioxidant properties and inhibition of NF-kappaB activation.     

胡黄连苦苷Ⅱ对大鼠肝纤维化的治疗作用

目的研究胡黄连苦苷Ⅱ对CCl4致大鼠肝纤维化的治疗作用。方法56只大鼠分为正常对照组、模型组、胡黄连苦苷Ⅱ治疗组和胡黄连苦苷Ⅱ对照组,采用CCl4腹腔注射诱导大鼠肝纤维化模型,造模第8周,检测大鼠血清丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、白蛋白(ALB)、透明质酸(HA)、层粘连蛋白(LN)、Ⅳ型胶原(Ⅳ-C)、Ⅲ型前胶原(PCⅢ)水平。结果与正常对照组相比,模型组血清ALT、AST、HA、LN、Ⅳ-C、PCⅢ水平显著增高,血清ALB水平显著降低。经胡黄连苦苷Ⅱ干预后,上述指标均显著改善(P0.01),与正常对照相比较仍有显著性差异(P0.05)。胡黄连苦苷Ⅱ对照组上述各指标与正常对照组无明显差异(P0.05)。结论胡黄连苦苷Ⅱ有保护肝细胞、预防CCl4诱导的大鼠肝纤维化作用。     

金三莪抗实验性肝纤维化的超微结构研究

目的　观察金三莪抗大鼠肝纤维化的疗效及超微结构变化。方法　将 6 4只Wistar大鼠随机分为 4组 ,每组 16只 :正常组、模型组、金三莪低高剂量治疗组。除正常组外 ,其余三组用四氯化碳皮下注射诱导大鼠肝纤维化模型 ,金三莪治疗组大鼠于造模第 4周开始予以金三莪灌胃治疗 ,剂量分别为 6g/kg和 12 g/kg ,每日 1次 ,第 8周处死全部大鼠。电镜下检测肝组织 ,肝组织HE染色和VanGiseon染色 ,常规生化方法检测肝功能 ,放射免疫方法检测透明质酸(HA)。结果　经金三莪治疗后大鼠肝细胞间隙变窄 ,胶原纤维减少 ,肝窦内皮细胞窗孔增加 ,肝小叶结构趋于正常 ,纤维间隔明显变薄 (P <0 .0 1)。与模型组比较 ,金三莪治疗后大鼠血清ALT ,AST ,HA显著减低 (P <0 .0 5 )。结论　金三莪能有效地减轻肝纤维化大鼠的肝脏细胞损伤及纤维化程度。     

Therapeutic effects and molecular mechanisms of Ginkgo biloba extract on liver fibrosis in rats

Oxidative stress can be implicated as a cause of liver fibrosis. In this sense, Ginkgo Biloba Extract (EGB), an antioxidant, may be beneficial in restraining liver fibrosis. The aim of this study was to evaluate the effects of EGB on experimental liver fibrosis. Rat liver fibrosis was induced by intraperitoneal injection of carbon tetrachloride (CCl4) twice a week for 8 weeks. Three groups of rats received EGB (0.25, 0.5 and 1.0 g/kg, respectively) by stomach everyday. CCl4 administration induced liver fibrosis, which was inhibited by EGB in a dose-dependent manner. The histopathologic score of fibrosis, liver function and the levels of plasma hyaluronic acid (HA) and laminin (LN) were significantly improved in rats treated with CCl4 + EGB, compared with those treated with CCl4 only (p < 0.01 or p < 0.05). The activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) were notably elevated, while malondialdehyde (MDA) content was significantly decreased in the rats treated with CCl4 + EGB (p < 0.01 or p < 0.05). Inhibition of hepatic stellate cell (HSC) activation and nuclear factor kappaBP65 (NF-kappaBP65) expression was demonstrated in the livers of EGB-treated rats. The activation of NF-kappaB was significantly suppressed in EGB-treated rats determined by electrophoretic mobility shift assay (EMSA). Furthermore, EGB reduced expressions of transforming growth factor-beta1 (TGF-beta1) and collagen I mRNA. In conclusion, EGB is able to ameliorate liver injury and prevent rats from CCl4-induced liver fibrosis by suppressing oxidative stress. This process may be related to inhibiting the induction of NF-kappaB on HSC activation and the expression of TGF-beta1.     

鳖甲煎汤抗大鼠肝纤维化作用

目的探讨鳖甲煎汤对大鼠肝纤维化的治疗作用.方法四氯化碳 (CCl4)与橄榄油配成 40 %的 CCl4橄榄油油性溶剂,按照 3 mg/kg腹腔皮下注射造模.模型对照组给予生理盐水灌胃,鳖甲煎汤低、中、高剂量组给药量分别为 6.25 g/kg、 12.5 g/kg、 25.0 g/kg.第 11周腹腔注射 10 %水合氯醛麻醉,眼球摘除取血测定肝的生化指标,取肝左叶做病理观察.结果鳖甲煎汤组能减低实验大鼠 ALT、 AST、透明质酸 (HA)、层粘蛋白 (LN)、 III型前胶原 (PCIII)水平,未见假小叶形成.相对低剂量组而言,中、高剂量组纤维增生较少,范围局限,肝细胞脂肪变性坏死较轻.鳖甲煎汤组与 CCl4模型组比较,有显著性差异 (P < 0.05).结论中药鳖甲煎汤具有一定的改善肝功能、减轻肝纤维化的作用.     

复肝丸对小鼠和大鼠肝纤维化模型的影响

目的:观察复肝丸对四氯化碳诱导的小鼠肝纤维化和二甲基亚硝胺诱导的大鼠肝纤维化的防治作用。方法:小鼠随机分为正常组、模型组、复肝丸组和培哚普利,除正常组外,其余组腹腔注射四氯化碳复制肝纤维化模型;自造模之日起各组灌胃4周。大鼠随机分为正常组、模型组、复肝丸组和培哚普利,除正常组外,其余各组腹腔注射二甲基亚硝胺4周复制肝纤维化模型;造模结束后各组灌胃4周。称重测量肝体比、脾体比,比色法测定血清谷丙转氨酶和谷草转氨酶活性,溴甲酚绿法测定血清白蛋白水平,碱消化法测定肝组织羟脯氨酸含量,HE染色观察肝组织炎性变化、天狼猩红胶原染色观察肝组织病理性胶原沉积变化。结果:与模型组相比,复肝丸10g生药/kg小鼠体重预防用药或6g/kg大鼠体重治疗用药均能降低大鼠和小鼠血清谷丙转氨酶和谷草转氨酶活性,减轻肝脏炎性病理,降低肝组织羟脯氨酸水平,改善肝组织病理性胶原沉积增生。结论:复肝丸对大鼠和小鼠肝纤维化具有防治作用。     

鳖甲寡肽I-C-F-6对四氯化碳诱导大鼠肝纤维化的影响

目的观察鳖甲寡肽I-C-F-6对四氯化碳(CCl4)诱导的大鼠肝纤维化的影响,探讨其抗纤维化作用及可能机制。方法将48只SD雄性大鼠随机分为正常组、模型组、联苯双酯组和鳖甲寡肽组。每组12只,CCl4腹腔注射建立大鼠肝纤维化模型。鳖甲寡肽组、联苯双酯组按0.12μg/g体质量皮下注射给药,正常组、模型组给予等量生理盐水,连续7周。检测血清或肝组织中丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)的水平及丙二醛(MDA)、超氧化物歧化酶(SOD)、白细胞介素(IL)-4、IL-10、肿瘤坏死因子-α(TNF-α)的含量;苏木素-伊红(HE)染色光镜下观察组织形态学变化及免疫组化染色观察肝组织中转化生长因子-β1(TGF-β1)表达。结果与模型组比较,鳖甲寡肽组血清ALT、AST水平显著降低,肝组织MDA、TNF-α含量下降,IL-4、IL-10含量升高,SOD活性增强,肝组织纤维化程度明显改善,TGF-β1抗体呈弱阳性表达。结论鳖甲寡肽I-C-F-6能减轻模型大鼠肝细胞损伤,具有抗氧化和抗纤维化作用。     

姜黄素抗肝纤维化的实验研究

目的:探讨姜黄素的抗肝纤维化作用。方法:将大鼠随机分为正常对照组、模型组、高、中、低3个剂量姜黄素组和阳性对照组,用皮下注射CC l4法诱导大鼠肝纤维化。测量并计算肝脏指数;测定各组大鼠ALT及AST活性以评价肝功能;同时观察各组大鼠肝脏形态学变化。结果:模型组大鼠肝脏指数均明显低于正常对照组(P<0.01),姜黄素治疗组大鼠肝脏指数明显高于模型组大鼠(P<0.05)。与正常组大鼠比较,模型组大鼠肝脏AST和ALT均显著升高(P<0.01),给予姜黄素治疗后,各治疗组大鼠肝脏AST和ALT活性均显著下降(P<0.05)。HE染色及M asson三色染色显示,秋水仙碱治疗组及各剂量姜黄素治疗组可见肝损伤病变明显减轻,纤维组织增生程度也明显轻于模型组。结论:姜黄素能明显减轻CC l4所致肝损伤,保护肝脏正常结构和功能,延缓肝纤维化。     

沙棘籽油对大鼠实验性肝纤维化的保护作用

目的 :观察沙棘籽油对大鼠肝纤维化的影响。方法 :用CCl4反复给予诱发大鼠产生肝纤维化 ,观察沙棘籽油的效果。结果 :CCl4组大鼠血清ALT、AST活力和肝脏羟脯氨酸含量明显增高 ,体重减轻。沙棘籽油 0 7和 0 3 5 g/kg均能抑制CCl4所致肝损伤大鼠血清ALT活力的升高 ,还可使肝脏羟脯氨酸含量下降 ,但对AST活力、总蛋白、白蛋白和球蛋白含量无明显影响。给药组大鼠肝脏脂肪变性、肝细胞坏死和纤维化均有所减轻。结论 :沙棘籽油对CCl4所致大鼠肝纤维化有一定保护作用。     

消癥荣木散治疗大鼠肝硬化的实验研究

目的探讨消癥荣木散对进展性CCl4大鼠肝硬化的治疗作用。方法采用50%CCl42mL/kg皮下注射(首次CCl4橄榄油溶液3mL/kg),每周2次,共8周(W),制备大鼠肝硬化模型;第9W开始模型大鼠随机分为模型对照组、消癥荣木散组及小柴胡汤组;用药的同时继续CCl4皮下注射至12W末。观察死亡率、腹水质量、肝功能、肝组织病理学、肝细胞增殖及肝纤维化相关指标mRNA表达变化。结果 8W模型大鼠血清ALT、AST、TBil显著升高(P0.01),Alb显著下降(P0.01),全部形成肝硬化并伴有腹水,肝组织α-SMA、TGF-β1、ColIA2、TNF-α、TIMP-1mRNA表达显著增加(P0.01),MMP-13mRNA表达显著降低(P0.01),并有少量肝细胞增殖;12W模型大鼠腹水质量、ALT、AST、TBil、α-SMA、TGF-β1、ColIA2、TNF-α、TIMP-1进一步升高,且腹水质量和TNF-α显著高于8W模型组,Alb及MMP-13进一步降低,肝细胞增殖明显受抑。与8W及12W模型组比较,消癥荣木散治疗后肝硬化程度明显减轻,ALT、AST、TBil、α-SMA、TGF-β1、ColIA2、TNF-α、TIMP-1均显著降低(P0.01),Alb含量和MMP-13mRNA表达显著升高(P0.05和P0.01),肝细胞增殖活跃。结论具有消痰祛瘀补气功效的消癥荣木散能够逆转CCl4诱导的进展性肝硬化,该治疗方法可能为中医药逆转肝硬化带来新的希望。     

复方芪术汤对四氯化碳致大鼠肝纤维化的影响研究

目的探讨复方芪术汤对四氯化碳(CCl4)致大鼠肝纤维化药效的干预作用。方法Wistar雄性大鼠30只,随机分为正常组10只和四氯化碳处理组(20只),四氯化碳1 ml/kg,每周2次腹腔注射,正常组注射等量的生理盐水。造模的第8周,四氯化碳处理组大鼠随机分为复方芪术汤组和模型组,每组10只。在继续造模的同时,复方芪术汤组给予70千克成人的10倍量灌胃,模型组给予等量的生理盐水灌胃,给药4周。12周末处死全部大鼠,留取肝组织样本和血清,测定谷丙转氨酶(ALT)、谷草转氨酶(AST)、白蛋白(ALB)、总胆红素(TBiL)。结果四氯化碳造模12周,模型组血清ALT、AST活性显著升高;ALB含量显著下降。血清TBiL含量显著升高。与模型组相比,复方芪术汤组大鼠血清ALB含量显著升高,血清ALT和AST活性显著降低(P<0.01)。但复方芪术汤对血清TBiL降低不明显。病理组织学显示,模型组假小叶形成,肝脏纤维化程度分级均为2、3级;复方芪术汤干预组肝小叶结构不同程度被破坏,肝脏纤维化程度分级大部分在1、2级。结论复方芪术汤可以显著改善大鼠肝功能,对CCl4引起的慢性肝纤维化大鼠有很好的降低肝纤维化程度的作用。