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Objective:To explore the mechanism of the extraction of Carthami flos in the treatment of chronic alcoholic liver injury based on metabolomics. Methods:The rats were randomly divided into normal group, model group, positive control group and low, medium and high dose groups of the extraction of Carthami flos, with 10 rats in each group. In addition to the normal group, the other groups were gavaged with 8 ml/kg of 56° Niulanshan Baijiu to prepare the rat model with chronic alcoholic liver injury. After the successful modeling, the positive control group was gavaged with 0.36 mg/kg of Hugan tablet, and the low, medium and high dose groups were gavaged with 0.476 7, 1.430 1 and 4.290 3 g/kg of the extraction of Carthami flos respectively, once a day for 21 days. The contents of GPT, GOT, TG and ALP2 in serum were detected by automatic biochemical analyzer, and the effects of the extraction of Carthami flos on chronic alcoholic liver injury in rats were analyzed by Ultra High Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS), cluster analysis, Principal Component Analysis (PCA) and Orthogonal Partial Least Squares Discriminant Analysis (OPLS-DA). Results:The levels of GPT [(42.11±6.58)U/L, (42.38±6.58)U/L vs. (49.96±10.70)U/L] and GOT [(104.81±14.70)U/L, (102.91±23.65)U/L vs. (159.66±53.69)U/L] decreased ( P<0.05 or P<0.01), while the levels of TG [(0.85±0.29)U/L, (0.85±0.23)U/L vs.(0.62±0.21)U/L] and ALP2 [(104.53±13.53)U/L, (100.30±17.28)U/L vs.(77.13±12.54)U/L] increased ( P<0.05 or P<0.01); The results of cluster analysis, PCA and OPLS-DA showed that the model group and the high-dose group of the extraction of Carthami flos could be distinguished obviously. A total of 20 chemical markers were obtained in the serum of rats with chronic alcoholic liver injury treated with the extraction of Carthami flos. Among them, the extraction of Carthami flos can down regulate the level of serum linolenic acid triglyceride in rats with chronic alcoholic liver injury and up regulate triglyceride, palmitic acid, lysophosphatidylcholine, palmitoyl ethanolamide, epinephrine, sphingosine, lysophosphingomyelin α-Linolenic acid, docosahexaenoic acid and eicosapentaenoic acid are 10 endogenous metabolites. Conclusion:The treatment of chronic alcoholic liver injury with the extraction of Carthami flos may be related to the regulation of endogenous metabolites docosahexadilute acid, docosapentadilute acid α- Linolenic acid.
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[Abstract] Objective To investigate the effect of wingless-type MMTV integration site family member 5b(Wnt5b) gene overexpression mediated by recombinant adenovirus on the differentiation of mouse embryonic liver stem cells and repair of chronic liver injury in mice. Methods Recombinant adenoviruses expressing Wnt5b and green fluorescent protein (GFP) were applied respectively to infect mouse fetal liver stem cells HP14-19, and induced its differentiation and verified the expression of Wnt5b through Real-time PCR and Western blotting. It also applied indocyanine grean(ICG) uptake experiment and periodic acid-schiff(PAS) staining to detect the differentiation ability of HP14-19 into hepatocyte-like cells. The Real-time PCR was chosen to detect hepatocyte markers albumin (Alb) and cytokeratin 18 (CK18) expression. Forty-eight experimental male BALB/ c mice were randomly divided into control group, model group, stem cell treatment group and Wnt5b modified stem cell treatment group. The carbon tetrachloride(CCl
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@#Models of acute and chronic liver injury in mice were established using carbon tetrachloride (CCl4) and ethanol to explore the protective effects of Ganoderma lucidum spore glycopeptide on liver injury.Different dosage of Ganoderma lucidum spore glycopeptide (65,130,260 mg/kg) were given by gavage.The liver index and the levels of serum aspartate transaminase (AST) and alanine transaminase (ALT) were determined.The contents of liver interleukin-6 (IL-6), tumor necrosis factor (TNF-α) and inducible nitric oxide synthase (iNOS) were tested by enzyme-linked immunosorbent assay (ELISA).The pathological injury of liver tissue was observed by HE staining.The results showed that Ganoderma lucidum spore glycopeptide could significantly reduce the liver index and the contents of serum AST and ALT in mice of acute and chronic liver injury.In mice of chronic liver injury induced by CCl4, Ganoderma lucidum spore glycopeptide could significantly decrease the contents of liver IL-6, TNF-α and iNOS, and alleviate the pathological damage of liver tissue.Results suggested that Ganoderma lucidum spore glycopeptide might reduce acute and chronic liver injury with anti-inflammatory effects in mice.
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Objective:To observe the prevention of glutathione(GSH)against chronic liver injury in rat.Methods:The chronic liver injury model was made by intracutaneous injection of carbon tetrachloride twice a week in rats for 24 times.From the 8th week after the carbon tetrachloride injection,GSH was given by oral or peritoneal administration once a day for 60 days.The animals were sacrificed at the end of the experiment.The serum level of ALT,AST were measured.The liver tissue was studied with histopathological or immunohistochemical assay.Results:GSH markly decreased the serum level of ALT,AST and improved liver tissue inflammation and lessend the liver fibrosis in histopathology compared with the model group.In the immunohistochemical stain,the deposition of type Ⅰ collagen of liver tissue significantly decreased in GSH treatment group compared with the model group.Conclusion:GSH can protect live from injury induced by toxic material.
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AIM:To investigate the effect of lipopolysaccharides(LPS)preconditioning on CCl4-induced liver injury and the change of LPS signal transduction.METHODS:The male Wistar rats were divided randomly into liver-injury group,which were injected with CCl4 5 mL/kg first,three days later were injected 0.3 mL 40% CCl4 and 60% olive oil. Animals in LPS preconditioning group were injected with LPS 0.5 mg/kg before the day CCl4 was given. Rats received high fat diet were as liver injury group,and normal control group received normal diet. The lymphocytes infiltrated in the liver tissue were counted. The endotoxin and ALT level in rat plasma,TNF-? content and expressions of TLR4,p38,p-p38,I??,NF-?? in the rat livers were also determined.RESULTS:The lymphocytes in liver slice and ALT level of the plasma in LPS preconditioning group were lower significantly than those in the liver injury group,and the expressions of TLR4,p-p38,NF-?? in the liver were the same. In contrast,the expression of I?? was higher.CONCLUSION:LPS preconditioning relieves obviously CCl4-induced chronic liver injury. The mechanism may be associated with change of signal transduction of LPS,which results in decrease of pre-inflammatory cytokines.