Objective:To the molecular mechanism of Yinjiushu in the treatment of non-alcoholic fatty liver disease (NAFLD) by network pharmacology based on the theory of homology of medicine and food; To conduct experimental verification.Methods:The active components and targets of the Yinjiushu were screened through the TCMSP platform. Cytoscape 3.7.2 was used to construct the "Chinese materia medica-component-target" network of Yinjiushu. The potential targets of NAFLD were obtained by using TTD, GeneCards database and DisGeNET database, and the intersection targets of Yinjiushu and NAFLD were obtained by mapping targets with Venn diagram. The high confidence interaction relationship of intersection targets was obtained in STRING database, and the core targets of Yinjiushu in treating NAFLD were screened out. GO function and KEGG pathway enrichment of common targets were analyzed by David database, and the above results were further verified by animal experiments. The rats were divided into blank group, model group, Western medicine group and Yinjiushu high-, medium- and low-dosage groups according to random number table method, with 8 rats in each group. Except the blank group, rats in other groups were fed with high-fat diet to prepare NAFLD model. Each group was given corresponding drugs for intervention. The rats were weighed regularly. The serum contents of GPT, GOT, TC, TG, IL-6, TNF-α, MPO of rats were detected by ELISA. The liver index was calculated. The degree of fatty degeneration of hepatocytes was observed by HE. The expressions of CAT, NOS3, SOD, PI3K, p-Akt, Akt protein were detected by Western blot.Results:A total of 8 418 NAFLD-related targets, 118 kinds of active components from Yinjiushu, and 137 targets acting on NAFLD were screened. The core targets included IL-6, TNF, VEGFA, TP53, JUN, CAT, NOS3, SOD, etc. 20 related signaling pathways were screened from KEGG enrichment pathway, among which PI3K/Akt pathway, calcium ion pathway, cAMP pathway and TNF pathway may play key roles in the treatment. Yinjiushu was closely related to inflammatory reaction, oxidative stress, angiogenesis, autophagy, cell proliferation, differentiation, metabolism, apoptosis, etc., or it could treat NAFLD by promoting cell apoptosis, inhibiting cell proliferation, inhibiting cell migration, etc. The animal experiment proved that Yinjiushu could reduce the body weight, wet liver weight and liver-body ratio of NAFLD rats, reduce some liver function and blood lipid indexes (GPT, GOT, TG, TC), down-regulate serum IL-6, TNF-α and MPO, up-regulate the expression of CAT, NOS3 and SOD in hepatocytes, and activate the expression of PI3K/Akt key protein.Conclusion:Yinjiushu can play a role in treating NAFLD by inhibiting the release of inflammatory mediators, improving lipid metabolism disorder of hepatocytes, repairing oxidative stress injury and promoting the recovery of liver function.

Background: The testis has been reported to be a naturally O 2 -deprived organ, dimethyloxaloylglycine (DMOG) can inhibit hypoxia inducible factor-1alpha (HIF-1α) subject to degradation under normal oxygen condition in cells. Objectives: The objective of this study is to detect the effects of DMOG on the proliferation and differentiation of spermatogonial stem cells (SSCs) in Bama minipigs. Methods: Gradient concentrations of DMOG were added into the culture medium, HIF-1αprotein in SSCs was detected by western blot analysis, the relative transcription levels of the SSC-specific genes were analyzed using quantitative reverse transcription polymerase chain reaction (qRT-PCR). Six days post-induction, the genes related to spermatogenesis were detected by qRT-PCR, and the DNA content was determined by flow cytometry. Results: Results revealed that the levels of HIF-1α protein increased in SSCs with the DMOG treatment in a dose-dependent manner. The relative transcription levels of SSCspecific genes were significantly upregulated (p < 0.05) by activating HIF-1α expression. The induction results showed that DMOG significantly increased (p < 0.05) the spermatogenesis capability of SSCs, and the populations of haploid cells significantly increased (p < 0.05) in DMOG-treated SSCs when compared to those in DMOG-untreated SSCs. Conclusion We demonstrate that DMOG can promote the spermatogenesis activity of SSCs.

Objective:To analyze the epidemiological and clinical characteristics of hospitalized patients with dengue fever in Guangdong Province in 2019, so as to provide reference for clinical diagnosis and treatment of dengue fever.Methods:The general data, laboratory examination data, clinical manifestations and prognosis data of 480 inpatients with dengue fever admitted to Eight People′s Hospital Affiliated to Guangzhou Medical University between January 4 and October 31, 2019 were analyzed retrospectively. The clinical and onset characteristics of patients with dengue fever were described.Results:Among 480 dengue patients, 442(92.1%) were dengue fever, 38(7.9%) were severe dengue, and 136(28.3%) had underlying diseases. The peak age of onset was mainly in young adults aged 20 to 49 years old, accounting for 66.0%(317/480) in total. The seasonal peak was mainly in August to October. There were 399(83.1%) local cases and 61(12.7%) imported cases. The most common clinical manifestations were fever (98.1%, 471/480), chills (72.9%, 350/480), headache (58.5%, 281/480) and bone/joint/muscle pain (67.1%, 322/480), followed by digestive tract symptoms and respiratory tract symptoms. Among 446 serum samples, 358 (80.3%) were dengue virus (DENV)-1, 54 (12.1%) were DENV-2, 34 (7.6%) were DENV-3. The main laboratory tests of the patients were leucopenia (65.8%, 316/480), low hematocrit (30.2%, 145/480), thrombocytopenia (48.3%, 232/480), neutropenia (44.8%, 215/480), elevated alanine aminotransferase (ALT) (37.7%, 181/480) and aspartate aminotransferase (AST) (59.4%, 285/480). Treatment mainly adopted symptomatic support treatment and active prevention of complications. The length of stay was (5.8±3.1) days (range 1.0-38.0 days). A total of 461(96.0%) patients were cured or improved.Conclusions:In 2019, the majority of dengue fever patients in Guangdong Province are young adults aged 20 to 49 years old, and the proportion of severe patients is high, with DENV-1 infection as the main type. After symptomatic support treatment and active prevention of complications, most of the dengue fever patients have a good prognosis.