ObjectiveTo investigate the effect of SU056， an azo-podophyllotoxin derivative， on carbon tetrachloride （CCl₄）-induced liver fibrosis in mice and related mechanisms of action. MethodsA total of 12 mice were randomly divided into control group， model group （CCl₄+normal saline）， and treatment group （CCl₄+SU056）， with 4 mice in each group. Mice were given intraperitoneal injection of CCl₄ to establish a model of liver fibrosis， and during the middle stage of modeling， the mice in the treatment group were given daily intraperitoneal injection of SU056. Liver histopathological injury， collagen deposition， and liver function were assessed based on HE staining， Masson staining， Sirius Red staining， the content of hydroxyproline in liver tissue， and the serum levels of alanine aminotransferase and aspartate aminotransferase， and immunofluorescence assay was used to measure the expression levels of smooth muscle actin α （α-SMA）， collagen type Ⅰ， and Y-box binding protein 1 （YB1）. The human hepatic stellate cell （HSC） line LX-2 and primary mouse HSC were used， and CCK-8 assay was used to measure cell proliferation； Transwell assay was used to observe cell migration； quantitative reverse transcription-polymerase chain reaction and Western Blot were used to measure the expression levels of collagen type Ⅰ， collagen type Ⅲ， YB1， phosphorylated mammalian target of rapamycin （mTOR）， and phosphorylated S6K， so as to validate the function of the YB1/mTOR signaling axis. The one-way or two-way analysis of variance was used for comparison of continuous data between multiple groups， and the least significant difference t-test was used for further comparison between two groups. ResultsIn the mouse model of liver fibrosis induced by CCl₄， compared with the model group， the treatment group had significant alleviation of inflammatory cell infiltration， collagen deposition， and pseudolobule formation in liver tissue and significant reductions in the serum levels of alanine aminotransferase and aspartate aminotransferase and the content of hydroxyproline in liver tissue （all P<0.01）. Immunofluorescence assay showed that SU056 significantly inhibited the abnormal high expression of α-SMA， collagen type I， and YB1 in liver tissue （all P<0.01）. In vitro experiments showed that SU056 inhibited the transforming growth factor-β1-induced proliferation of LX-2 cells （P<0.01）， the migration of LX-2 cells （P<0.05）， and the transcriptional up-regulation of collagen type Ⅰ and collagen type Ⅲ （all P<0.05） in a dose-dependent manner， and SU056 could inhibit the spontaneous activation of primary HSC in vitro. Mechanistic studies revealed that transforming growth factor-β1 simultaneously upregulated the expression levels of YB1， phosphorylated mTOR， and phosphorylated S6K in LX-2 cells， and treatment with SU056 （10 and 20 µmol/L） could downregulate the protein expression levels of collagen type I， YB1， phosphorylated mTOR， and phosphorylated S6K. Specific knockdown of YB1 or administration of the mTOR inhibitor rapamycin exerted a similar effect as SU056. SU056 also inhibited the co-upregulation of α-SMA and phosphorylated mTOR in liver tissue of model mice （P<0.01）. ConclusionSU056 can effectively inhibit HSC activation， proliferation， migration， and extracellular matrix production both in vivo and in vitro and thus delay the progression of liver fibrosis， by disrupting the YB1/mTOR positive feedback signaling axis.

Cholestatic liver disease(CLD)is a group of hepatobiliary disorders caused by impaired bile production,secretion,or excretion.With the application of liquid biopsy,multi-parameter radiological examination,and genomics technology,significant progress has been made in the diagnosis and prognostic evaluation of CLD.At present,the therapeutic principles for CLD mainly focus on addressing the underlying causes and managing cholestasis,and commonly used drugs include ursodeoxycholic acid,S-adenosylmethionine,cholestyramine,fibrates,and obeticholic acid.Based on the latest clinical consensus statements and research advances in CLD,this article systematically elaborates on the clinical management strategies for CLD from the aspects of diagnosis,treatment,and prognostic evaluation.

Cholestatic liver disease(CLD)is a group of hepatobiliary disorders caused by impaired bile production,secretion,or excretion.With the application of liquid biopsy,multi-parameter radiological examination,and genomics technology,significant progress has been made in the diagnosis and prognostic evaluation of CLD.At present,the therapeutic principles for CLD mainly focus on addressing the underlying causes and managing cholestasis,and commonly used drugs include ursodeoxycholic acid,S-adenosylmethionine,cholestyramine,fibrates,and obeticholic acid.Based on the latest clinical consensus statements and research advances in CLD,this article systematically elaborates on the clinical management strategies for CLD from the aspects of diagnosis,treatment,and prognostic evaluation.

Objective To compare the changes of the medical animal resources(MAR)in Sichuan based on the data of the 3rd Chinese Materia Medica Resource Inventory(CMMRI,1983-1986)and the 4th CMMRI(2020-2022).Methods After field investigation and identification of the photos of the animals,the data of the MAR in Sichuan found in the 4th CMMRI were analyzed and compared with the data of 3rd CMMRI.Results 745 species of MAR were found in Sichuan during the 4th CMMRI,including 212 families and 468 genera.Compared with the 108 species found in 3rd CMMRI,the number of MAR in Sichuan had greatly increased,The Aves was found to have 243 species of MAR,which is the most plenty one among the 7 classes.There were 14 families which have more than 10 species of MAR.The family,Cyprinidae had 48 species of MAR.There were 33 common Chinese medicinal herbs and 3 genuine medicinal materials including Cordyceps sinensis,musk and Venenum bufonis were found in this investigation.The new distributions of Liangshan Cordyceps and Cordyceps gunnii were found in the investigation,and the new resources of Atypus heterothecus was found in Mountain Emei.There were 140 species of key protection of wild medicinal animals,including 44 species of animals under first-class protection and 96 species of animals under second-class protection.There were 230 species of animals which had important ecological,scientific,and social values,too.Conclusion Sichuan was plenty of medical animal resources and the protection of the forest musk deer,the Cordyceps sinensis and the pangolin was need to be strengthened.

With the changes in people’s lifestyle and dietary structure, the incidence rate of nonalcoholic fatty liver disease (NAFLD) has been increasing year by year, and NAFLD has become a serious threat to human health. The treatment of NAFLD has always been a hot topic of basic and clinical research on liver diseases. In recent years, many studies have revealed that omega-3 polyunsaturated fatty acids (ω3-PUFA) can promote fatty acid oxidation, improve intestinal homeostasis, and thus improve lipid metabolism and liver inflammation, and therefore, more and more clinical studies have applied ω3-PUFA in the treatment of NAFLD. However, the mechanism of ω3-PUFA in the treatment of NAFLD is still unclear, and there are certain limitations in related clinical studies. This article mainly introduces the role of ω3-PUFA in NAFLD and the results of related clinical studies and further discusses the problems that need to be solved in ω3-PUFA for the treatment of NAFLD.

Cholestatic liver diseases (CLD) are a series of hepatobiliary diseases characterized by dysfunction of bile formation, secretion and excretion and are induced by immune, genetic and environmental factors. The development and pathogenesis of CLD is still unclear, and it has a risk of progression to liver fibrosis and cirrhosis. Traditional medicines such as ursodeoxycholic acid (UDCA), glucocorticoids and immunosuppressants have certain limitations. More and more studies provide new insights into the mechanism of cholestasis to explore the therapeutic targets, and various drugs such as all-trans retinoic acid, microecologics and norursodeoxycholic acid emerge as new therapeutic drugs. This article reviewed the advances in treatment of CLD.

Liver fibrosis is a common reversible pathological change in chronic liver injury and may progress to liver cirrhosis, liver failure, and portal hypertension. In recent years, several studies have shown a significant change in chemokine profiles in patients with liver fibrosis, which is closely associated with the progression of liver fibrosis. Monocyte chemoattractant protein 1 (MCP-1) belongs to the family of CC chemokines and can induce the activation, recruitment, and migration of inflammatory cells during liver fibrosis. MCP-1 may be involved in the activation of hepatic stellate cells, the development of insulin resistance, and the progression to hepatocellular carcinoma. This article mainly reviews the potential role of MCP-1 and CC chemokine receptor in the progression of liver fibrosis and related therapies.

Non-alcoholic fatty liver disease (NAFLD) is a liver manifestation of the metabolic syndrome. The "second strike" theory implies that cytokines play vital roles in the pathogenesis of NAFLD. Tumor necrosis factor-α (TNF-α), an important member of the tumor necrosis factor family, is widely available and has various biological effects. The expression of TNF-α in vivo is tissue-specific and participates in various cellular activities. Low concentration of TNF-α is involved in anti-inflammation, while excessive TNF-α impairs systematic immune balance and contributes to pathological changes along with other inflammatory cytokines. This article reviewed the role of TNF-α in progression of NAFLD.

Objective To observe the temporomandibular joint spaces changes after the plastic surgery of combined zygoma with mandibular angel.Methods We randomly selected 59 patients with prominent zygoma and mandibular angle,screening periodontal disease,TMJ pain and partial jaw.Bilateral zygomatic arch coarctation,jaw edge of the mandibular angle ostectomy and the mandibular body outer panel split were used.All patients accepted CT scan and three-dimensional reconstruction before operation,10 days after operation and 6 months after operation,and then image analysis softwares were used to measure the line distance of corresponding angle (0°,60°,120°,and 180°)at the TMJ sagittal plane.The 0° (EE 'pitch) and 60° (AA'pitch) represented for pre-space,the 60° and 120° (PP'pitch) was upper-space,the 120° and 180° (SS'pitch) was posterior-space.Results 0° and 60° had the same change trend,which slightly increased at 10 days after operation.The difference before operation and 10 days,6 months after operation were not statistically significant (P ＞ 0.05);120° and 180° had the same change trend,which increased at 10 days after operation.The difference between before operation and 10 days after operation was statistically significant (P ＜ 0.05),but the difference between before operation and 6 months after operation was not statistically significant (P＞ 0.05).Conclusions In the short term after plastic surgery of zygoma combined with mandibular angel,the TMJ upper and posterior spaces are changed,and the interspace reduced.This may indicate that the TMJ has compensatory ability,and short-term changes can return to normal.

OBJECTIVETo conduct health economic evaluation of the prevention of mother-to-child HIV among pregnant women in Dehong prefecture, Yunnan province, China from 2004 to 2013.

METHODSData on cost were collected mainly from the annual prevention of mother-to-child transmission (PMTCT) reporting system of Dehong prefecture, and supplemented by HIV PMTCT-related resource allocation data from local health bureau. Effectiveness indexes were from local continuous HIV surveillance system and annual reported data. Cost-effectiveness and cost-utility analysis were used to conduct the health economic evaluation.

RESULTSFrom 2004 to 2013, 283980 pregnant women were screened for HIV, 2 059 were detected as positive, and the HIV positive rate was 0.73%. The total cost of the PMTCT program was 14 227 000 RMB after discounting, and the unit cost of positive case finding was 4 200 RMB. A total of 26 cases of adults and 325 infants were avoided HIV infection, and the cost-effectiveness ratio (CER) was 40 500 RMB/case. The total obtained quality adjusted life years (QALY) from the program was 8 911.5, each one of which cost 1 600 RMB/QALY. If the feeding pattern were breast feeding, CER would be 42 800 RMB/case and each one of QALY would cost 2 200 RMB.

CONCLUSIONBased on the cost-effectiveness and cost-utility analysis, the HIV PMTCT of Dehong prefecture had economic value, which indicates that continued investment is needed to strengthen local HIV PMTCT work.

Acquired Immunodeficiency Syndrome ; Adult ; Child ; China ; Cost-Benefit Analysis ; Costs and Cost Analysis ; Female ; HIV Infections ; Health ; Humans ; Infant ; Infectious Disease Transmission, Vertical ; Mothers ; Pregnancy ; Quality-Adjusted Life Years