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.     

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。     

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.     

Protective effect of Lygodium flexuosum (L.) Sw. extract against carbon tetrachloride-induced acute liver injury in rats

The hepatoprotective potential of Lygodium flexuosum (L.) Sw. was evaluated in male Wistar rats against carbon tetrachloride-induced liver damage in preventive and curative models. Toxic control and n-hexane extract-treated rats received a single dose of CCl4 (150 microL/100g, 1:1 in corn oil). Pre-treated rats were given n-hexane extracts at 200 and 100 mg/kg dose 48, 24 and 2 h prior to CCl4 administration. In post-treatment groups, rats were treated with n-hexane extract at a dose of 200 and 100 mg/kg, 2, 24 and 48 h after CCl4 intoxication. Rats pre-treated with Lygodium flexuosum remarkably prevented the elevation of serum AST, ALT, LDH and liver lipid peroxides in CCl4-treated rats. Rats treated with the extract after the establishment of CCl4 induced liver injury showed significant (p < or = 0.05) protection of liver as evidenced from normal AST, ALT, LDH and MDA levels. Hepatic glutathione levels were significantly (p < or = 0.05) increased by the treatment with the extracts in both the experimental groups. Histopathological changes induced by CCl4 were also significantly (p < or = 0.05) reduced by the extract treatment in preventive and curative groups. Phytochemical studies revealed the presence of saponins, triterpenes, sterols and bitter principles in Lygodium flexuosumn-hexane extract which could be responsible for the possible hepatoprotective action.     

Prevention of Cistanche salsa Extract on Hepatic Fibrosis Induced by Carbon Tetrachloride in Rats

Objective To explore the antifibrotic effect of echinacoside on carbon tetrachloride(CCl4)-induced hepatic fibrosis in rats.Methods Male Wistar rats were randomly divided into normal control(n=8),model(n=14),and echinacoside treatment(n=14)groups.The hepatic fibrosis model was induced by CCl4compositor.The rats were ig administered with echinacoside at a daily dose of 50 mg/kg.The anti-oxidant status,liver function parameters,and hepatic hydroxyproline content were detected by chromatometry.The serum levels of hyaluronic acid(HA),type IV collagen(CIV),type III precollagen(PIIIP),and laminin(LN)were assayed with radioimmunoassay.The hpatic injury was detected by haematoxylin-eosine staining.The deposition of collagen was observed with Masson staining.Results Echinacoside increased the superoxide dismutase activity and reduced the levels of malondialdehyde,aspartate aminotransferase,alanine aminotransferase,HA,CIV,PIIIP,and LN in serum.Echinacoside could also reduce the hydroxyproline content in liver,alleviate hepatic injury,and inhibit collagen deposition.Conclusion Echinacoside possesses antihepatic fibrosis effect.     

肝纤康对大鼠肝纤维化的抑制作用及其机制研究

目的观察肝纤康对CCl4诱导的大鼠肝纤维化的影响并探讨其可能机制。方法用CCl4复制大鼠肝纤维化模型,同时予以肝纤康灌胃治疗,测定血清ALT、MDA、HA、LM及肝组织GSH、Hyp含量,并观察肝组织病理变化。结果模型组血清ALT、MDA、HA、LM及肝组织Hyp含量显著升高,肝组织GSH含量显著降低,肝纤维化病变明显;肝纤康治疗组血清ALT、MDA、HA、LM及肝组织Hyp含量明显降低,肝组织GSH含量明显升高,肝纤维化病变明显减轻。结论肝纤康对大鼠肝纤维化具有明显抑制作用,其机制可能与减轻肝细胞脂质过氧化损伤,减少细胞外基质在肝组织沉积有关。     

姜黄素抗肝纤维化的实验研究

目的：探讨姜黄素对四氯化碳（CCl4)中毒性纤维化的治疗作用。方法：复制大鼠CCl4肝纤维化模型，以马洛替酯为阳性对照，采用光镜观察组织学改变，测定血清谷丙氨酸转移酶（ALT），谷草氨酸转移酶（AST），一氧化氮（NO），透明质酸（HA），层粘连蛋白（LN），肝组织羟脯氨酸（Hyp，丙二醛（MDA）以反映肝细胞损伤及肝纤维化的程度。结果：姜黄素能降低实验性肝纤维化大鼠血清中升高的ALT,AST,NO,HA,LN水平和过高的肝组织中Hyp,MDA的含量。病理组织学检查亦表明，姜黄素明显改善实验性肝纤维化。结论：姜黄素可能对实验性肝纤维化具有一定的治疗作用。     

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.     

Effect of Ganoderma tsugae on chronically carbon tetrachloride-intoxicated rats

The purpose of this study was to evaluate the hepatoprotective and anti-fibrotic actions of crude extracts of Ganoderma tsugae (GTE) on chronic liver injury induced by carbon tetrachloride (CCl4) in rats. CCl4 (20%, 0.5 ml/rat) was given twice a week for 8 weeks, and animals received GTE through the whole experimental period. GTE showed obvious reducing actions on the elevated levels of glutamate-oxalate-transaminase (GOT) and glutamate-pyruvate-transaminase (GPT) caused by CCl4 at weeks 3, 6 and 8. Liver fibrosis in rats induced by CCl4 led to the drop of serum albumin and hepatic protein concentrations, while GTE increased serum albumin and hepatic protein concentrations. The CCl4-induced liver fibrosis may prolong the prothrombine time and increase albumin/globulin (A/G) ratio. GTE significantly decreased the prothrombine time and A/G ratio. Liver fibrosis induced by CCl4 markedly increased the weight of the spleen, hepatic water and hydroxyproline contents in rats, while GTE decreased the rat's spleen weights, hepatic water and hydroxyproline contents. All these results clearly demonstrated that GTE has hepatoprotective and anti-fibrotic activities.     

芍药苷对大鼠慢性肝损伤及肝纤维化的保护作用

目的观察芍药苷(PF)对四氯化碳(CCl4)所致大鼠慢性肝损伤及纤维化的治疗作用。方法将大鼠随机分为6组,利用高脂低蛋白饲料和CCl4制作大鼠肝损伤模型,并同时给予相应药物灌胃,9周后取材送检。血液生化检测肝功能指标:丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、碱性磷酸酶(ALP)、总胆红素(TBil);放射免疫法测定肝纤维化指标:透明质酸(HA)、层黏连蛋白(LN)、Ⅳ型胶原(CⅣ);制备肝干粉,分光光度计检测羟脯氨酸(Hyp)。结果模型组大鼠血清ALT、AST、HA、CⅣ和肝组织中Hyp明显高于正常组(P<0.05或0.01);与模型组比较,芍药苷3个剂量组可明显降低肝纤维化大鼠血清中ALT、AST;芍药苷408,0 mg/kg剂量组可明显降低肝纤维化大鼠血清中HA含量及根据肝组织羟脯氨酸(Hyp)含量计算的胶原蛋白量(P<0.05和0.01)。结论芍药苷对慢性肝损伤及纤维化有保护作用。     

银杏叶提取物对肝纤维化大鼠肝脏TGF-β1及其受体表达的影响

目的:观察银杏叶提取物(GbE)对肝组织TGF-β1及其受体表达的影响。方法:采用CCl4诱导大鼠肝纤维化,同时分别以200、100、50mg/kg.d的GbE进行干预,6周后取肝组织,采用免疫组化法测定肝组织TGF-β1及其受体TβRⅠ、Ⅱ、Ⅲ蛋白的表达。结果:模型大鼠肝组织TGF-β1及其受体TβRⅠ、Ⅱ、Ⅲ蛋白表达较正常组明显增高,GbE各剂量组肝组织TGF-β1及其受体表达也较模型组显著下降。结论:GbE可能通过降低TGF-β1及其受体的表达,抑制CCl4诱导的大鼠肝纤维化的发生及发展。     

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.     

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.     

丹参滴丸对CCl4诱导的大鼠肝纤维化的影响及其作用机制

目的 观察丹参滴丸对CCl4致大鼠肝纤维化的保护作用,并探讨其作用机制.方法 除对照组外,其余各组大鼠用CCl4复合因素法诱导肝纤维化大鼠模型,丹参滴丸各组同时ig给予丹参滴丸700、350、175 mg/kg,阳性对照组给予扶正化瘀胶囊1 500 mg/kg,每天给药1次,连续给药7周,正常大鼠给予蒸馏水作为对照组.测定各组大鼠血清中丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、N-乙酰-β-D-氨基葡萄糖苷酶(NAG)的活性及总蛋白(TP)、白蛋白(ALB)、Ⅳ型胶原的水平;测定肝组织中超氧化物歧化酶(SOD)活性、丙二醛(MDA)和羟脯氨酸(Hyp)的量;HE和Masson染色观察肝组织病理形态学改变;免疫组化法检测α-平滑肌肌动蛋白(α-SMA)的表达.结果 丹参滴丸能明显抑制肝纤维化大鼠血清中ALT、AST、NAG活性的升高,降低Ⅳ型胶原的量,增加TP和ALB的量;降低肝组织中Hyp和MDA的量,提高SOD的活性,抑制胶原纤维的增加,亦能降低α-SMA的表达.结论 丹参滴丸有明显的抗肝纤维化作用,其作用机制与其抗脂质过氧化、抑制胶原纤维的增加及降低α-SMA的表达等密切相关.     

Hot water extracted Lycium barbarum and Rehmannia glutinosa inhibit liver inflammation and fibrosis in rats

Polysaccharide-rich Lycium barbarum and Rehmannia glutinosa have been considered to have immune-modulating activity. This study investigated the effects of water extracted Lycium barbarum and Rehmannia glutinosa (HE) on carbon tetrachloride (CCl(4))-induced liver injury in rats. Male Sprague-Dawley rats were randomly divided into: normal diet + peritoneal injection of olive oil (control), normal diet + CCl(4) injection (CCl(4)), 1 × HE (0.05% HE for each) + CCl(4) (1 × HE), and 3 × HE (0.15% HE for each) + CCl(4) (3 × HE) groups. Rats were injected with 40% CCl(4) at a dose of 0.75 ml/kg body weight once a week for seven weeks, one week after herbal extract treatment. After eight week herbal extract treatment, pathohistological examination showed that both 1× and 3 × HE treatments diminished necrotic hepatocytes, chemoattraction of inflammatory cells, and liver fibrosis. Both 1× and 3 × HE treatments decreased plasma alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities, and reduced hepatic levels of pro-inflammatory cytokines - tumor necrosis factor-α and interleukin-1β - compared to CCl(4) treatment alone. The 1 × HE treatment increased hepatic anti-inflammatory cytokine IL-10 levels. Both the 1× and 3 × HE treatments suppressed liver fibrosis biomarkers - transforming growth factor-β1 and hydroxyproline. Therefore, treatment with water extracted Lycium barbarum and Rehmannia glutinosa (0.05% and 0.15% for each) for eight weeks protects against necrotic damage, indicated by decreases in plasma ALT and AST activities, and suppresses liver fibrosis by down-regulation of liver inflammation in rats with CCl(4)-induced liver injury.     

藏药郎庆阿塔治疗肝纤维化的实验研究

目的:研究藏药郎庆阿塔对复合因素所致大鼠肝纤维化的治疗作用.方法:清洁级Wistar大鼠90只采用复合因素(高脂低蛋白饲料喂养、含乙醇饮用水加皮下注射四氯化碳)制备大鼠肝纤维化模型,造模6周末随机处死12其造模大鼠,通过肝组织病理检查及血清肝功能指标来检查肝纤维化模型成功率.将模型大鼠随机分为模型对照组、阳性药复方鳖甲软肝片组(0.55 g·kg-1)、郎庆阿塔颗粒给药高、中、低剂量组(生药11.4,5.7,2.85 g·kg-1),另设正常对照组.各组大鼠于分组后即日(第7周)开始ig给药,每日1次,连续ig给药7周.治疗结束后,检测血清中生化指标和肝纤维化指标,并取肝脏组织,测定肝脏组织中羟脯氧酸含量、超氧化物歧化酶(SOD)活力及丙二醛(MDA)水平,另取肝脏组织标本进行病理组织学检查.结果:郎庆阿塔能明显降低肝纤维化大鼠增高的肝脏系数和肝组织中羟脯氨酸含量(P ＜0.05～p＜0.01),显著降低肝纤维化大鼠血清中异常升高的天冬氨酸转氨酶(AST)、丙氨酸转氨酶(ALT)、碱性磷酸酶(ALP)、总胆红素(T-BIL)、透明质酸(HA)、层黏连蛋白(LN)、Ⅲ型前胶原氨端肽( PⅢ NP)及Ⅳ型胶原(CⅣ)(P＜0.05～P＜0.01),升高白蛋白(ALB)和A/G,比值,能明显升高肝组织中SOD活力(P＜0.05～P＜0.01)、降低异常升高的MDA水平(P ＜0.05～P＜0.01),病理组织学检查结果表明郎庆阿塔高、中剂量对肝纤维化大鼠肝纤维组织增生、肝组织炎症活动度均有显著的改善作用(P ＜0.05～P＜0.01),并能显著降低肝组织中胶原纤维面积(P＜0.05～P＜0.01).结论:藏药郎庆阿塔具有明显的治疗肝纤维化作用.     

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。     

丹参酮ⅡA对四氯化碳致大鼠肝纤维化的实验研究

目的:探讨丹参酮ⅡA(Tanshinone ⅡA,Tsn)对四氯化碳(CCl_4)中毒性肝纤维化的治疗作用。方法:复制大鼠CCl_4肝纤维化模型,以马洛替酯为阳性对照,采用光镜观察组织学改变,测定血清谷丙氨酸转移酶(ALT)、谷草氨酸转移酶(AST)、一氧化氮(NO)、透明质酸(HA)、层粘连蛋白(LN),肝组织羟脯氨酸(Hyp)、丙二醛(MDA)以反映肝细胞损伤及肝纤维化的程度。结果:丹参酮ⅡA能降低实验性肝纤维化大鼠血清中升高的ALT、AST、NO、HA、LN水平和过高的肝组织中Hyp、MDA的含量。病理组织学检查亦表明,丹参酮ⅡA能明显改善实验性肝纤维化。结论:丹参酮ⅡA可能对实验性肝纤维化具有一定的治疗作用。