Screening hepatoprotective effective components of Lonicerae japonica Flos based on the spectrum-effect relationship and its mechanism exploring

Lonicerae japonicae Flos(LF)is a kind of healthcare food with hepatoprotective function.This study was designed to explore the spectrum-effect relationships between UPLC fingerprints and the hepatoprotective effects of LF.Fingerprints of ten batches of LF were established by UPLC-PDA.The inhibitory levels of AST and ALT were used as pharmacological indexes,and secoxyloganin,isochlorogenic acid A and isochlorogenic acid C were screened as hepatoprotective active compounds by grey relational analysis(GRA)and partial least squares regression analysis(PLSR).Caspase-3 was obtained by network pharmacology as a key target of hepatoprotective active compounds.Molecular docking is used to explore the interaction between small molecules and proteins.This work provided a general model of the combination of UPLC-PDA and hepatoprotective effect to study the spectrum-effect relationship of LF,which can be used to considerable methods and insight for the fundamental research of the material basis of similar healthcare food.

Antioxidant, hepatoprotective and hypolipidemic effects of methanolic root extract of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication

Objective: To evaluate in vivo antioxidant and hepatoprotective activities of the methanolic extract of the root of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication. Methods: Malondialdehyde (MDA), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and bilirubin as indices of liver damage and lipid peroxidation were detected in rats after intraperitoneal administration of extract (5 mg/kg). Results: The liver, kidney and heart showed significant reduction ( P <0.05) in the levels of MDA from (0.18依0.04), (0.23 依0.07) and (0.26依0.10) nmol/mg respectively in the CCl 4 control to (0.15依0.03), (0.17依0.04) and (0.17 依0.07) nmol/mg protein in groups pre-treated with the extract for three days at 5 mg/kg). Similarly, compared to the CCl 4 control, significant reduction ( P<0.05) in serum AST, ALT and bilirubin as well as in level of total cholesterol and MDA with concomitant increase in HDL cholesterol, superoxide dismutase and catalase levels when CCl 4 -intoxicated rats were treated with Cassia singueana root extract for two weeks. Conclusions: These results suggest that methanolic extract of Cassia singueana contain potent antioxidant compounds that can offer significant protection against hepatic and oxidative injuries.

Medical plant extracts and natural compounds with a hepatoprotective effect against damage caused by antitubercular drugs: A review

Drug-induced liver injury encompasses a spectrum of diseases ranging from mild biochemical abnormalities to acute liver failure; example of this scenery is hepatotoxicity caused by the first-line antituberculous drugs isoniazid, rifampin and pyrazinamide, which are basic for treatment of drug-sensible and drug-resistant tuberculosis. In the search for pharmacological alternatives to prevent liver damage, antitubercular drugs have been the subject of numerous studies and published reviews, a great majority of them carried out by Asian countries. At the same time, hepatoprotectors from plant source are now emerging as a possible alternative to counteract the toxic effects of these therapeutic agents. The present review aims to highlight the most recent studies on the subject, based information published in scientific databases such as Scopus and Pub Med.

Reducing oxidative stress and hepatoprotective effect of water extracts from Pu-erh tea on rats with high-fat diet

Reducing oxidative stress and hepatoprotective effect of Pu-erh tea water extracts on rats fed with high-fat diet were researched for explaining health care of Pu-erh tea.Fifty SD rats were divided into five groups.The body weight was measured once a day.The malondialdehyde(MDA)and glucose(Glu)levels and the activities of alanine aminotransferase(ALT),aspartate aminotransferase(AST),nitric oxide synthase(NOS),and pyruvate kinase(PK)in serum were determined.Furthermore,the hepatic glycogen level(HGL)and the activities of hepatic total superoxide dismutase(T-SOD),catalase(CAT),and glutathione peroxidase(GSH-Px)were also measured after continuous administration for 12 weeks.The result demonstrated that Pu-erh extract caused the decreases in body weight,fat index,MDA and NOS levels,and the increases in hepatic T-SOD,CAT and GSH-Px activities,indicating that the extract may be due to inhibiting the increases of body weight and fat index,reducing oxidant stress state and inhibiting lipid peroxidation,thus decreasing the activities of ALT and AST,and protecting the liver in rat.Meanwhile,the extracts could increase the production of hepatic glycogen and the activity of PK,and reduce glucose level,protecting the liver from the diseases associated with type II diabetes.

Antioxidant,hepatoprotective and hypolipidemic effects of methanolic root extract of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication

Objective:To evaluate in vivo antioxidant and hepatoprotective activities of the methanolic extract of the root of Cassia singueana in rats following acute and chronic carbon tetrachloride intoxication.Methods:Malondialdehyde（MDA）,aspartate aminotransferase（AST）,alanine aminotransferase（ALT） and bilirubin as indices of liver damage and lipid peroxidation were detected in rats after intraperitoneal administration of extract（5 mg/kg）.Results:The liver, kidney and heart showed significant reduction（P【0.05） in the levels of MDA from（0.18±0.04）,（0.23±0.07） and（0.26±0.10） nmol/mg respectively in the CCl4 control to（0.15±0.03）,（0.17±0.04） and（0.17±0.07） nmol/mg protein in groups pre-treated with the extract for three days at 5 mg/kg(.Similarly, compared to the CCl4 control,significant reduction（P【0.05） in serum AST,ALT and bilirubin as well as in level of total cholesterol and MDA with concomitant increase in HDL cholesterol, superoxide dismutase and catalase levels when CCl4-intoxicated rats were treated with Cassia singueana root extract for two weeks.Conclusions:These results suggest that methanolic extract of Cassia singueana contain potent antioxidant compounds that can offer significant protection against hepatic and oxidative injuries.

Hepatoprotective effect of manual acupuncture at acupoint GB34 against CCl_4-induced chronic liver damage in rats

AIM： To investigate the hepatoprotective effect of manual acupuncture at Yanglingquan （GB34） on CCl4-induced chronic liver damage in rats. METHODS： Rats were injected intraperitoneally with CCh （1 mL/kg） and treated with manual acupuncture using reinforcing manipulation techniques at left GB34 （Yanglingquan） 3 times a week for 10 wk. A nonacupoint in left gluteal area was selected as a sham point. To estimate the hepatoprotective effect of manual acupuncture at GB34, measurement of liver index, biochemical assays including serum ALT, AST, ALP and total cholesterol, histological analysis and blood cell counts were conducted. RESULTS： Manual acupuncture at GB34 reduced the liver index, serum ALT, AST, ALP and total cholesterol levels as compared with the control group and the sham acupuncture group. It also increased and normalized the populations of WBC and lymphocytes. CONCLUSION： Manual acupuncture with reinforcing manipulation techniques at left GB34 reduces liver toxicity, protects liver function and liver tissue, and normalizes immune activity in CCh-intoxicated rats.

Hepatoprotective effect of Premna corymbosa(Burm.f.) Rottl.& Willd.leaves extract on CCl_4 induced hepatic damage in Wistar albino rats

Objective:To investigate the hepetoprotective activity of Premna corymbosa leaves against carbon tetrachloride(CCl_4) induced hepatic damage.Methods:Hepatotoxicity was induced in wistar rats of both sexes by intraperitoneal injection of CCl_4,1 mL/kg body weight for every 72 h.The ethanolic extract of Premna corymbosa leaves were administrated at doses of 200 & 400 mL/kg body weight, p.o.,daily for 14 days.The hepatotoxicity and its prevention was assessed by serum markers like serum alkaline phosphatase(SALP),serum triglycerides(STG),serum total protein(STP), serum cholesterol(SC),and liver wet weight and histopathological studies of the liver.Results:In treatment with the ethanolic extract,the toxic effect of CCl_4 was controlled significantly(P<0.01) by restoration of the levels of biochemical parameters as compared to normal and standard drug silymarin treated groups.The liver weight was reduced by the ethanolic extract treated groups. The histopathology of the liver sections evidenced the hepatoprotective activity.Conclusion:The ethanolic extract of the leaves of Premna corymbosa possess significant acute hepatoprotective activity.Premna corymbosa can be recommended for the liver disorders.

Antioxidative and hepatoprotective activities of a novel polysaccharide (LSAP) from Lepista sordida mycelia

A novel alkali-soluble polysaccharide from Lepista sordida(LSAP)mycelia with antioxidative and hepatoprotective activities was characterized.The weight-average molecular weight and number-average molecular weight of LSAP were 1.442×10^(3) and 6.05×10^(2) kDa,respectively.LSAP was consisted of glucose(57.9%),xylose(31.8%),and small amounts of rhamnose,arabinose,galactose,glucuronic acid,and galacturonic acid(1.2%–3.1%).The FT-IR and 2D NMR confi rmed that LSAP was composed of Xylp,Araf,4-O-Me-α-D-GlcpA,(1→4)-linkedβ-D-Glcp,and(1→4)-α-D-GalA,andβ-glycosidic linkages between these sugar units.LSAP displayed notable effects on 1,1-dephenyl-2-picryhydrazyl(DPPH)radical scavenging,hydrogen peroxide scavenging,lipid peroxidation inhibitory ability,reducing power and Fe^(2+)chelating property.These biological effects were further verifi ed by suppressing CCl_(4)-induced oxidative liver damage in mice at doses of 100 and 200 mg/kg.Administration of LSAP in mice prior to CCl_(4) signifi cantly prevented the CCl_(4)-induced elevation in serum alanine aminotransferase,aspartate aminotransferase,and hepatic malondialdehyde.Mice treated with LSAP demonstrated to increase activities in superoxide dismutase(SOD)and glutathione peroxidase(GSH-Px)in the liver.We also found out that LSAP prevented CCl_(4)-induced oxidative liver histological alteration.LSAP may exert hepatoprotective effects against CCl_(4)-induced damage through antioxidant mechanisms in model mice.

香菇糖蛋白对大鼠铅中毒的改善作用

目的:通过优化提取工艺获得具有促排铅功能的香菇糖蛋白,探讨其对醋酸铅诱导铅中毒大鼠的防治效果。方法:利用热水浸提去除蛋白以及层析技术获得香菇糖蛋白纯品,利用红外光谱分析、单糖组成、N端氨基酸及内部氨基酸序列分析技术鉴定了香菇糖蛋白的分子特性。将63只雄性SD大鼠随机分为9组,即空白对照组、模型组、阳性对照组、香菇糖蛋白处理组(4、8、160 mg/kg)和香菇子实体处理组(4、12、36 g/kg),通过腹腔注射醋酸铅制备大鼠铅中毒模型,连续给药30 d,观察大鼠的外观表现,检测体重变化、血液和脏器中的铅含量以及生化指标。结果:提纯的香菇糖蛋白(LEPP)经过单糖组成分析发现其是由葡萄糖、甘露糖、半乳糖、葡萄糖醛酸、木糖、岩藻糖、核糖、半乳糖醛酸、阿拉伯糖、鼠李糖组成,氨基酸序列分析发现其N端序列为MPEQVVVADA,说明香菇糖蛋白具有多糖和蛋白的成分。动物实验表明,香菇糖蛋白能够促进铅中毒大鼠的体重增长,显著降低血液和肝脏中铅的含量(P<0.05),具有排除铅在肝脏中的沉积作用,显著提高血清中超氧化物歧化酶(Superoxide Dismutase,SOD)和过氧化氢酶(Catalase,CAT)的活性(P<0.05),降低丙二醛(Malondialdehyde,MDA)的含量(P<0.05),提高机体的抗氧化能力,同时香菇糖蛋白还可以降低血液中谷草转氨酶(Glutamic Oxaloacetic Transaminase,AST)和谷丙转氨酶(Glutamic-Pyruvic Transaminase,ALT)的水平,具有保护肝脏的作用。结论:香菇糖蛋白可以排除体内的重金属铅,有效地改善大鼠的铅中毒症状。

水飞蓟宾胶囊保肝作用的药学研究进展

水飞蓟宾胶囊是一种从水飞蓟素中提取主要成分水飞蓟宾制成的保肝药物。本文就近年来国内外关于水飞蓟宾胶囊的药学特性和药品质量研究进行综述,主要从药品的药理作用机制、临床应用、药物动力学、安全性及质量标准等多个维度对水飞蓟宾胶囊进行药学部分的讨论,为临床合理用药提供参考。

栀子在肝脏疾病防治中的应用及作用机制研究进展

栀子为茜草科植物栀子的干燥成熟果实,是江西道地药材,含有环烯醚萜类、二萜类、黄酮类等多种化学成分。研究表明,栀子对多种类型肝损伤有一定的预防保护效果。栀子发挥肝损伤保护作用与其抗氧化、清除自由基、抗脂质过氧化等有关并有多种通路参与其中。现通过对栀子在肝脏疾病防治中的临床应用以及功能与机理进行系统总结,并对其研发现状加以研究,以期为栀子的开发和合理应用提供依据。

DHA单酰基甘油酯型藻油对小鼠急性酒精性肝损伤的保护作用

研究DHA单酰基甘油酯对小鼠急性酒精性肝损伤的保肝作用及机制。将雄性小鼠随机分为正常组、模型组、实验组(DHA单酰基甘油酯组)、阳性对照组(DHA三酰基甘油酯组和DHA乙酯组)5组。给药15 d后,检测血清丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、碱性磷酸酶(ALP)、甘油三脂(TG)、总胆固醇(TC)、高密度脂蛋白(HDL)和低密度脂蛋白(LDL)含量,肝组织Toll样受体4(TLR 4)、髓样分化因子(MyD88)、核转录因子κB(NF-κB)基因表达水平。观察肝组织病理性改变;分析小鼠粪便细菌多样性。DHA单酰基甘油酯能显著降低急性酒精肝损伤小鼠血清ALT、AST、ALP、TG、TC和LDL浓度,而显著增加HDL浓度,改善酒精引起的肝组织病理性改变,而且DHA单酰基甘油酯对小鼠肝损伤改善效果优于DHA三酰基甘油酯和DHA乙酯。此外,DHA单酰基甘油酯能显著抑制酒精肝损伤小鼠肝组织TLR 4、MyD88、NF-κB基因表达,对酒精引起的肠道菌群紊乱具有一定恢复作用。DHA单酰基甘油酯对酒精诱导小鼠肝损伤具有一定保护作用,其机制可能与抑制TLR 4/NF-κB通路和改善肠道菌群有关。

不同灵芝菌丝体水提物对乙醇诱导LO2肝细胞损伤的保护作用

为了探讨不同灵芝菌丝体水提物对乙醇诱导LO2肝细胞损伤的保护作用,本文分析了7种不同灵芝菌株发酵菌丝体水提物对乙醇诱导LO2细胞损伤的保护作用。利用乙醇诱导LO2细胞建立体外肝损伤模型,并以细胞存活率、谷丙转氨酶(Alanine Aminotransferase,ALT)、谷草转氨酶(Aspartate Aminotransferase,AST)、活性氧(Reactive Oxygen Species,ROS)、超氧化物歧化酶(Superoxide dismutase,SOD)、谷胱甘肽(Glutathione,GSH)和丙二醛(Malondiadehyde,MDA)水平为指标考察灵芝菌丝体水提物对乙醇诱导LO2细胞损伤的保护效果。结果表明,7种灵芝菌株的菌丝体水提物均具有不同程度的保护作用。综合比较,G0119与G0154菌丝体的水提物作用效果较优,相较模型组,LO2细胞存活率显著提高(P<0.05),细胞培养液中的ALT、AST活力显著降低(P<0.05),细胞内ROS水平显著降低(P<0.05),SOD活力、GSH含量显著升高(P<0.05),MDA含量显著降低(P<0.05)。经相关性分析,发现水提物中多糖组分2的分子量大小与其保肝活性呈正相关,即分子量越大,活性越强。综上,灵芝菌丝体水提物对乙醇诱导的体外肝损伤起到保护作用,并且G0119与G0154菌株的作用效果较优,其保肝作用与提取物中多糖组分的分子量大小相关。

抗结核中药的作用机制研究进展

中医药治疗结核病历史悠久,是治疗结核病及其耐药性问题的有效途径。本文根据中药抑制结核分枝杆菌生长、保护肝脏及调节机体免疫等方面的作用,将黄连、啤酒花、石吊兰、灵芝、葎草、金银花等25种中药分为6类,分别阐明他们的有效成分、抑菌浓度及作用机理,为中药治疗结核病提供科学的思路、策略和理论依据,为抗结核组分中药的研发提供参考。

不同中药化合物对吉非替尼肝毒性的保护作用研究

目的:筛选对吉非替尼肝毒性具有较好保护作用的药物。方法:54只SPF级雄性ICR小鼠随机分为正常组、吉非替尼组、谷胱甘肽组、川芎嗪组、水飞蓟素组、甘草酸组、黄芩苷组、芍药苷组和苦参碱组,每组6只。除正常组外,其余组小鼠均灌胃给予400mg·kg*'吉非替尼16天诱导肝损伤模型。各给药组小鼠每天于给予吉非替尼30 min后灌胃100 mg kg-1的相应药物,正常组和模型组小鼠灌胃等体积0.5%CMC-Na,给药体积为10 mL.kg-1。末次给药30 min后,眼眶后静脉丛取血并脱颈椎处死小鼠,称取肝脏质量并计算肝脏指数;HE染色观察肝脏病理变化;采用生化试剂盒检测血清谷丙转氨酶(alanine aminotransferase,ALT)和谷草转氨酶(aspartate aminotransferase,AST)的水平。含药培养基培养AML12细胞30 min后,除正常组外,其余组加入20μmoL.L-'吉非替尼培养24 h诱导细胞损伤。CCK-8试剂盒检测细胞活力;生化试剂盒检测细胞上清液中ALT、AST和乳酸脱氢酶(lactate dehydrogenase,LDH)的水平。结果:动物实验表明,与吉非替尼组相比,甘草酸、黄芩苷显著升高小鼠体质量(P<0.01),降低肝脏指数及ALT、AST水平(P<0.05);川芎嗪和水飞蓟素显著升高小鼠体质量(P<0.01),降低AST水平(P<0.05);芍药苷、苦参碱显著降低ALT和AST水平(P<0.01)。HE染色显示,吉非替尼组小鼠肝脏组织呈现大量炎症细胞浸润,肝索排列紊乱;谷胱甘肽、甘草酸、黄芩苷、芍药苷和苦参碱可显著减轻小鼠肝脏组织病理损伤。细胞实验表明,各药物均可不同程度减轻吉非替尼诱导的AML12细胞损伤,其中甘草酸、黄芩苷和芍药苷的保护作用较好,细胞存活率分别提高至96.4%、81.1%和78.2%。与吉非替尼组相比,甘草酸显著降低ALT、AST和LDH含量(P<0.05);水飞蓟素、黄芩苷和芍药苷显著降低ALT和LDH含量(P<0.05)。结论:甘草酸、黄芩苷和芍药苷对吉非替尼所致的肝毒性均具有较好的保护作用,其中甘草酸的作用最好。

蟛蜞菊内酯药理作用及机制研究进展

作为天然香豆素类化合物的蟛蜞菊内酯具有多种药理活性,通过阅读近20年国内外相关报道,发现蟛蜞菊内酯具有抗癌、抗肿瘤、抗炎、保肝、降血糖、降脂、治疗骨质疏松、促进称骨细胞、破骨细胞的生成等的药理作用,此文章系统的阐述了蟛蜞菊内酯药理作用的研究进展,目的在于为蟛蜞菊内酯的深入研究及其在中药中的合成及提取利用提供依据。

红花清肝十三味丸通过激活HNF4α改善肝功能的保肝机制研究

[目的]探讨红花清肝十三味丸(HHQG)通过激活肝细胞核因子4α(hepatocyte nuclear factor 4α,HNF4α)改善肝功能的保肝作用机理。[方法]将45只C57BL/6J小鼠随机分为对照组、CCl_(4)损伤组、HHQG组,每组15只;HHQG组小鼠灌胃剂量为0.6165 g/(kg·BW)的HHQG,每天1次,持续7 d,对照组和CCl_(4)损伤组灌胃等体积的无菌蒸馏水;末次灌胃4 h后,对照组小鼠腹腔注射剂量为5 mL/(kg·BW)的橄榄油,CCl_(4)损伤组和HHQG组小鼠腹腔注射相同剂量的CCl_(4)与橄榄油混合液(CCl_(4)∶橄榄油=1∶4,V/V)进行肝损伤造模;分别在造模后第2、5、7天采集各组小鼠血液及肝脏组织样本;记录各组小鼠在试验期间的体重;测定血清谷草转氨酶(AST)、谷丙转氨酶(ALT)及总超氧化物歧化酶(SOD)活力;采用HE染色法及Masson染色法观察肝脏病理组织学变化;应用转录组测序(RNA-seq)技术分析差异基因富集通路;利用免疫组织化学技术检测HNF4α蛋白的表达情况。[结果]与对照组相比,在造模后第1~4天以及第6~7天,CCl_(4)损伤组小鼠体重显著(P<0.05)或极显著(P<0.01或P<0.001)降低;与CCl_(4)损伤组相比,在造模后第4天以及第6~7天,HHQG组小鼠体重显著(P<0.05)或极显著(P<0.01)增加。与对照组相比,在造模后第2天,CCl_(4)损伤组小鼠血清ALT和AST活力极显著(P<0.001)升高;与CCl_(4)损伤组相比,在造模后第2天,HHQG组小鼠血清ALT和AST活力显著(P<0.05)降低。HE染色及Masson染色观察结果显示,在造模后第2、5、7天,与CCl_(4)损伤组相比,HHQG组小鼠肝脏组织损伤程度明显改善。KEGG信号通路富集分析表明,与CCl_(4)损伤组相比,HHQG组小鼠肝脏组织中过氧化物酶体增殖物激活受体、脂肪酸降解、脂肪酸代谢等信号通路上调,核糖体、甘油磷脂代谢、甲状腺癌症等信号通路下调。与CCl_(4)损伤组相比,HHQG组小鼠肝脏组织中与肝脏分化相关的基因群(HNF4α、ATF5、Cebpb等)显著上调。免疫组织化学分析显示,与CCl_(4)损伤组相比,在造模后第2、5天,HHQG组小鼠肝脏组织中HNF4α表达量明显增加。[结论]HHQG通过激活HNF4α,抑制肝脏氧化损伤、促进肝脏组织修复以及维持肝脏功能,改善小鼠肝损伤,从而发挥保肝效应。

Lignans are the main active components of Schisandrae Chinensis Fructus for liver disease treatment:a review

As a traditional Chinese herbal medicine,Schisandrae Chinensis Fructus(SC)has been used in medicine and food industry due to its health care and therapeutic effects.Over the past 20 years,the use of SC and its active ingredient lignans in the prevention and treatment of liver diseases has been increasing,and their hepatoprotective effects has increased the interest of the public and academia.Therefore,in the present work,we first determined the effectiveness of SC in the treatment of liver diseases such as metabolic associated fatty liver disease,alcoholic liver disease,cholestatic liver disease and acute liver injury.Subsequently,the pharmacological effects and molecular mechanisms of lignans,the active components of SC,for liver disease treatment were comprehensively summarized for the first time.The results showed that the lignans in SC could achieve hepatoprotective effects by regulating lipid metabolism,anti-fibrosis,anti-inflammation,anti-oxidation,anti-tumor and regulating bile acid metabolism.The mechanism mainly involved adenosine 5’-monophosphate-activated protein kinase,endoplasmic reticulum stress,sterol regulatory element binding protein 1c,autophagy,transforming growth factor-β,mitogen-activated protein kinase,microRNA,nuclear factor kappa-B,nuclear factor erythroid-2-related factor 2,heat shock proteins and pregnane X receptor signaling pathways.These results can lay a scientific foundation for the development of hepatoprotective drugs or functional foods from SC/lignans.

朝鲜蓟护肝组方的抗氧化活性及肝保护作用分析

探究朝鲜蓟和3种药食同源中草药枳椇子、葛根和姜黄联用下的体外抗氧化和抗炎活性及其对斑马鱼肝损伤的保护作用。体外抗氧化研究表明,护肝组方对DPPH和+ABTS自由基的清除能力IC50值分别为80.18µg/mL和256.15µg/mL。体外抗炎实验研究表明,质量浓度为120µg/mL的护肝组方显著抑制了炎症因子TNF-α、IL-6的表达和NO的分泌(P<0.05),抑制率分别为48.12%、31.77%和27.38%。对乙酰氨基酚(APAP)致斑马鱼肝损伤研究表明,高剂量组(62.5µg/mL)中斑马鱼肝脏面积增加了30.07%,肝脏明亮度增加了12.48%,卵黄囊面积降低了56.16%,差异均显著(P<0.001)。低、中、高剂量组(15.6、31.25及62.5µg/mL)均显著改善肝细胞变性和细胞坏死并降低组织中谷丙转氨酶(ALT)和谷草转氨酶(AST)活力(P<0.05),且呈剂量依赖关系。该研究表明,朝鲜蓟护肝组方具有明确的体外抗氧化和抗炎活性,对APAP所致斑马鱼肝损伤具有明显的保护作用。

Hypolipidaemic and antioxidant effect of Enicostemma littorale Blume

Objective:To investigate the hypolipidaemic and antioxidant effects of aqueous leaf extract of Enicoslemma littorale(E.littorale)Blume(Ens)against ethanol induced hepatic injury in albino rats.Methods:Male albino rats of six numbers in each group were undertaken for study.Hypolipidaemic and antioxidant effect of E.littorale Blume(Ens)aqueous leaf extract at a dosage of 250 mg/kg bw was evaluated.Results:Levels of serum and tissue cholesterol,triglycerides and free fatty acids were elevated and levels of tissue thiobarbituric acid reactive substances(TBARS)and lipid hydroperoxide were increased in ethanol treated rats.The activity levels of liver antioxidant enzymes such as superoxide dismutase(SOD),catalase(CAT),glutathione peroxidase(GPX)and glutathione-s-transferase(GST)were decreased.After adiminstration of extract of E,littorale Blume,levels of cholesterol,triglycerides and free fatty acids were decreased in serum and liver tissue,levels of TBARS and lipid hydroperoxide were decreased,and Ever antioxidant enzymes were increased in liver tissue;Conclusions:It can be concluded that the aqueous leaf extract of E,littorale Blume(Ens)has potent restorative effect on hyperlipidaemic and oxidative stress.