Objective To construct mice hepatocellular carcinoma models with different tumor immune microenvironments(TIME)and explore the differences.Methods H22 and hepa1-6 were used to construct subcutaneous transplantation tumor model of C57 mice as homologous hepatocellular carcinoma cell lines(denoted as H22 group and hepal-6 group,each n=8),and the differences of TIME were evaluated.Immunohistochemistry was used to detect and quantify the infiltration of T cells,CD4+T cells,CD8+T cells,regulatory T cells and B cells in TIME.Flow cytometry was performed to detect the differences of composition of immune cell subpopulations in peripheral blood and tumor parenchyma.Gene expression profile characteristics of tumor tissue were analyzed based on high-throughput transcriptome sequencing technology,and enrichment analyses of immune-related signaling pathways were evaluated combined with gene ontology(GO)and Kyoto encyclopedia of genes and genomes(KEGG).Results H22 group showed cold and hepa1-6 group showed hot TIME characteristics.The number of T cells,CD4+T cells and CD8+T cells in tumor tissue of H22 group were all lower,while the proportion of T cells,CD4+T cells and CD8+T cells in peripheral blood were all higher than those of hepa1-6 group(all P＜0.05).Compared with H22 group,up-regulated genes of tumor tissue in hepa1-6 group expressed significantly enriched in tumor immune activation-related signaling pathways.Conclusion H22 and hepa1-6 hepatocellular carcinoma models showed distinct TIME characteristics of cold and hot tumors,respectively,and the amount of immune cells in tumor tissue of the former were significantly lower than those in the latter.

Objective To construct mice hepatocellular carcinoma models with different tumor immune microenvironments(TIME)and explore the differences.Methods H22 and hepa1-6 were used to construct subcutaneous transplantation tumor model of C57 mice as homologous hepatocellular carcinoma cell lines(denoted as H22 group and hepal-6 group,each n=8),and the differences of TIME were evaluated.Immunohistochemistry was used to detect and quantify the infiltration of T cells,CD4+T cells,CD8+T cells,regulatory T cells and B cells in TIME.Flow cytometry was performed to detect the differences of composition of immune cell subpopulations in peripheral blood and tumor parenchyma.Gene expression profile characteristics of tumor tissue were analyzed based on high-throughput transcriptome sequencing technology,and enrichment analyses of immune-related signaling pathways were evaluated combined with gene ontology(GO)and Kyoto encyclopedia of genes and genomes(KEGG).Results H22 group showed cold and hepa1-6 group showed hot TIME characteristics.The number of T cells,CD4+T cells and CD8+T cells in tumor tissue of H22 group were all lower,while the proportion of T cells,CD4+T cells and CD8+T cells in peripheral blood were all higher than those of hepa1-6 group(all P＜0.05).Compared with H22 group,up-regulated genes of tumor tissue in hepa1-6 group expressed significantly enriched in tumor immune activation-related signaling pathways.Conclusion H22 and hepa1-6 hepatocellular carcinoma models showed distinct TIME characteristics of cold and hot tumors,respectively,and the amount of immune cells in tumor tissue of the former were significantly lower than those in the latter.

Diabetes, hypertension, and dyslipidemia, collectively referred to the " Three Highs, " represent increasingly prevalent metabolic risk factors in China. Many individuals experience all three conditions concurrently, significantly heightening the risk of cardiovascular disease and mortality. Although the National Metabolic Management Center(MMC) has been established for over eight years and has its unique features, the awareness, treatment, and control rates of these diseases in China remain low, and the efficiency of community management is insufficient. According to the previous two editions of management guidelines and the most recent domestic and international diagnostic and treatment guidelines, this paper conducts an in-depth analysis of the operational experience and management strategies of the MMC. Its aim is to improve the efficiency of grassroots MMC mode management for " Three Highs" patients and ensure that patients receive more standardized management.

Diabetes, hypertension, and dyslipidemia, collectively referred to the " Three Highs, " represent increasingly prevalent metabolic risk factors in China. Many individuals experience all three conditions concurrently, significantly heightening the risk of cardiovascular disease and mortality. Although the National Metabolic Management Center(MMC) has been established for over eight years and has its unique features, the awareness, treatment, and control rates of these diseases in China remain low, and the efficiency of community management is insufficient. According to the previous two editions of management guidelines and the most recent domestic and international diagnostic and treatment guidelines, this paper conducts an in-depth analysis of the operational experience and management strategies of the MMC. Its aim is to improve the efficiency of grassroots MMC mode management for " Three Highs" patients and ensure that patients receive more standardized management.

Clinical staging, Gleason score, and prostate-specific antigen (PSA) have been accepted as factors for evaluating the prognosis of prostate cancer (PCa). With the in-depth study of iron metabolism and the development of multiparametric magnetic resonance imaging technology, we used q-Dixon magnetic resonance imaging (MRI) to measure the iron content of the PCa patients' lesions, and used enzyme-linked immunosorbent assay (ELISA) to measure the iron metabolism indicators in the patients' serum samples, combined with the patients' postoperative clinical data for analysis. We found that the serum indexes were correlated with the T2 star values, International Society of Urological Pathology (ISUP) grade, and pathological classification in PCa patients (all P < 0.001) but not in benign prostatic hyperplasia (BPH) patients (all P > 0.05). The utilization of q-Dixon-based MRI and serum indexes allows the noninvasive measurement of iron content in prostate lesions and the assessment of differential iron metabolism between PCa and BPH, which may be helpful for evaluating the prognosis of PCa.
Male ; Humans ; Prostatic Hyperplasia/pathology* ; Prostate-Specific Antigen ; Prostatic Neoplasms/pathology* ; Prostate/pathology* ; Neoplasm Grading ; Magnetic Resonance Imaging/methods* ; Iron

Objective To analyze the positive conversion rate of negative spouse and the survival analysis on HIV sero－discordant couples． Methods Data were collected from the case report database of the integrated AIDS prevention and control data and information system． HIV sero－discordant couples diagnosed between September 1，1997 and September 1，2018 were recruited into the cohort． The participants were divided into three groups as untreated subgroup，routine treatment subgroup and early treatment subgroup according to the situation when they started HIV treatment． The positive conversion rate of negative spouse and the survival were compared among the three subgroups． Ｒesults 598 HIV sero－discordant couples were recruited and the overall survival time of the three subgroups were 258. 92，4 987．17 and 862．25 person－year． The rate of positive conversion were 6. 18/100，0. 48/100 and 0. 23/100 person－year． Multivariate Cox regression model showed that the hazard ratio of routine treatment subgroup ( HＲ = 0. 052，95% CI: 0. 037－0. 074) and early treatment subgroup ( HＲ=0. 011，95% CI: 0. 003－0. 035) were lower than untreated subgroup． The risk of death of women was lower than that of men( HＲ=0. 667，95% CI: 0. 472－0. 944) ; the older the age，the higher the risk of death ( HＲ=1. 041，95% CI: 1. 026－1. 056) ; and the risk of death of the unemployed is higher than that of farmers ( HＲ=1. 571，95% CI: 1. 037－2. 381) ． Conclusion Targeted interventions methods and early antiviral therapy should be taken urgently for sero－discordant couples．

To analyze the characteristics of the results of serum immunological tests and brain CT image examinations of atypical cerebral cysticercosis patients, so as to provide the reference for improving the diagnosis of the disease.Totally 446 suspected cerebral cysticercosis patients were chosen as the study objects, all of them were given experimental treatment with praziquantel, and then the patients with atypical cerebral cysticercosis were diagnosed according to the treatment effect and review results of brain CT or MRI. Meanwhile, all the 446 patients were tested for serum specific IgG and IgG4 antibodies and cysticercus circulating antigen (CAg) by ELISA, McAb ELISA and PEG-ELISA respectively, and the IHA test was also performed. All the patients received the brain CT examinations. The test results were analyzed statistically and the test performances of the methods above-mentioned were calculated.Among the 446 suspected cerebral cysticercosis patients, after the praziquantel treatment, there were 315 patients whose symptoms were alleviated, and they were diagnosed as atypical cerebral cysticercosis. Among the 446 suspected cerebral cysticercosis patients, the positive rates of specific IgG and IgG4 antibodies, and CAg were 15.47%, 15.02%, and 11.21% respectively, and the positive rate of IHA was 28.47% (χ² = 52.45, P ＜ 0.01). The brain CT examinations showed that there were 79.14% (353/446) of patients with suspected cysticercus foci. The sensitivities of ELISA, McAb-ELISA, PEG-ELISA, IHA test and brain CT examination (suspected cysticercus foci) for the diagnosis of atypical cerebral cysticercosis were 15.36%–96.82%, the specificities were 63.36%–99.24%, the positive predictive values were 86.40%–98.52%, the negative predictive values were 32.83%–98.25%, the positive likelihood ratios were 2.64–27.86, the negative likelihood ratios were 0.05–0.81, and the OR values were 7.16–52.80. The consolidation of the five tests above-mentioned showed the OR value was 108.00, which was 2 times of the OR value of CT examination.Atypical cerebral cysticercosis is definitely diagnosed mainly by means of evaluating the effect of the diagnostic therapy (anti-cysticercus), and the serum immunological examinations and brain CT examination also have important reference values.

Objective To analyze the rates of occurrence,presentations and treatment of coronary intramural hematomas(IMH)after coronary artery stent implantation.Methods Retrospective analysis was carried out in non-chronic total occlusion patients who developed coronary intramural hematomas after coronary artery stent implantation between January 1,2011 to December 31,2016.Statistical analysis was made in the fields clinical data,coronary angiography features,treatment provided,and postoperative follow-up date of the patients.Results Among the 26 IMH patients,the male gender(15/26,57.7％)and existiing hypertension(17/26,65.4％)were more common risk factors for IMH after coronary artery stent implantation.Fourteen patients developed coronary dissection.The coronary intramural hematomas presented as new non-spasm and non-thrombus coronary stenosis.The coronary intramural hematomas were found to have involved the distal segment to the stents in 16 patients.Two patients received balloon dilation,five patients had stents implantation after balloon dilation,13 patients(50.0％)were treated with direct stent implantation and the other 6 patients did not have further intervention.The follow up period after hospital discharge was(2.39±1.68)years.No adverse cardiovascular event occurred.Five patients received follow-up angiography examination.Two patients and another one patient were found to have coronary intramural hematomas fully resolved at three months and one year with coronary angiographic follow up,respectively.Two patients had IMH on angiography at 1 year follow up.Conclusions Coronary intramural hematomas after coronary artery stent implantation often involved the distal segment to the stent in hypertensive patients presenting as new non-spasm and non-thrombus coronary stenosis.Patients at low risk of acute coronary occlusion could receive conservative treatment.Patients with extentsive length of intramural hematomas should consider stent implantation for treatment.

BACKGROUND: Previous studies have found that electroacupuncture (EA) could effectively inhibit the expression of p38 and Fas mRNA mediated by MAPK signaling pathways, to further inhibit the apoptosis of chondrocytes. Meanwhile,EA delays the degeneration of articular cartilage mediated by JAK-STAT signaling pathway through upregulating the expression levels of transforming growth factor β1 as well as the mRNA expression levels of STAT3, Smad3 and LepR.OBJECTIVE: To explore the effect of EA on the cartilage ultrastructure and mRNA expression levels of Ras, Raf,MEK1/2 and ERK1/2 in the rat with knee osteoarthritis.METHODS: The rat models of knee osteoarthritis were established, and randomized into four groups at 2 weeks after modeling: model group received no interventions; 15- and 30-minute EA groups were given EA at the Hsiyen (medical,extra) of bilateral knee joints for 15 and 30 minutes, respectively; PD98059 group was given the intravenous injection of extracellular signal-regulated kinase inhibitor PD98059. The intervention time was 3 months. Those rats received normal feeding served as blank control group.RESULTS AND CONCLUSION: Transmission electron microscopy showed that compared with the model group, the chondrocytes in the 15- and 30-minute EA and PD98059 groups changed little, the nucleus was larger, partial endoplasmic reticulum cisterna expanded, and the mitochondria structure was clear. ELISA results showed that the 15-and 30-minute EA and PD98059 groups had a significant decrease in the level of tumor necrosis factor α compared with the model group (P < 0.01). RT-PCR revealed that the mRNA expression levels of Ras, Raf, MEK1/2 and ERK1/2 in the 15- and 30-minute EA and PD98059 groups were significantly downregulated (P < 0.05 or P < 0.01). These results indicate that EA can alleviate chondrocyte injury in the rat osteoarthritic model, reduce the level of tumor necrosis factor α in the synovium, and downregulated the expression levels of Ras, Raf, MEK1/2 and ERK1/2 mRNA, further delaying the chondrocyte degeneration in osteoarthritis.