AIM: To explore the effect and the mechanism of sulphated heparin on the proliferation and the apoptosis of human hepatocellular carcinoma cells. METHODS: The human hepatocellular carcinoma cell line (HepG-2) was used to identify the expression of ras gene protein and to study the effect of sulphated heparin on proliferation and the apoptosis in vitro . RESULTS: The sulphated heparin downregulated the ras protein expression and inhibited the cell growth in HepG2 cells. In the presence of sulphated heparin, the apoptosis rate of HepG2 increased. CONCLUSION:The data suggest that the effects of sulphated heparin on the proliferation and the apoptosis of the human hepatocellular carcinoma cell are correlated with the signaling transduction mediated by ras gene protein.

Objective To measure the costs of primary health services in the community for developing government compensation standard and prediction of budget in 201 5.Methods Literature review and panel discussions were used to build the index database.A two-round Delphi expert consultation determined the work to do and steps for community healthcare standards.60 community health centers were sampled by stratified random sampling for survey,and the work hours,workload and service volume of respective services in 2013 were measured according to the service standards of primary care.Results The community primary care consists of the categories of outpatient services,nursing care, laboratory tests and drug management,totaling 20 services and 88 working procedures.The total work hours of primary healthcare service at 60 community health centers were 2 557 187.9 hours,which is adjusted to 2 959 21 5.1 hours based on workload coefficients.Based on the income standards of employees at the community health centers investigated,and the human cost price which was recommended by the experts,the total costs of primary healthcare of the 60 centers were 245 million,248 million and 318 million respectively,and the average cost was 71.0 yuan,71.8 yuan and 92.1 yuan per visit respectively.By such standards,the government should subsidize 38.9 ~ 60.0 yuan per visit to the centers.The total expenditure of primary healthcare of all communities in Shenzhen in 201 5 was predicted to be 314 to 407 million,for which the government is expected to subsidize 1.68~2.58 billion.Conclusion The subsidies for community primary healthcare fall short as the cost per visit runs up in 2013 to 71.0 yuan per visit or more,far above the current subsidy of 32.1 yuan per person.The subsidy per visit should be made 50.0 yuan in 201 5.

Objective:To investigate the differences in clinical and electrocardiographic characteristics between carriers of SCN5A mutations and non-SCN5A mutations in fever-induced Brugada syndrome.Methods:This study is a retrospective cohort study. A total of 263 patients with fever-induced Brugada syndrome who were admitted to Renmin Hospital of Wuhan University from January 2000 to December 2023 were selected. Their clinical manifestations, electrocardiographic characteristics, and major adverse cardiovascular events (MACE) at the time of diagnosis and during the follow-up period were collected. Among them, 200 patients underwent next-generation sequencing. Based on the genetic variation results, after excluding other mutations, they were divided into SCN5A mutation group, non-SCN5A sodium-related mutation group, potassium/calcium mutation group, and no mutation group. Comparisons were made among these groups in terms of their clinical and electrocardiographic characteristics.Results:Among the 263 patients with fever-induced Brugada syndrome, the mean age was (41.9±17.6) years, with 80.6% (212/263) being male. The median follow-up duration was 53.0 months, and 13.7% (36/263) of the patients experienced MACE. The rate of SCN5A mutation was 34.5% (69/200), while the rates of non-SCN5A sodium-related mutations and potassium/calcium-related mutations were 4.5% (9/200) and 3.5% (7/200), respectively. The SCN5A mutation group was younger than the non-SCN5A sodium-related mutation group and the no mutation group (ages were (33.8±14.7), (49.8±11.6), (44.6±15.7) years, respectively, P<0.001). The SCN5A mutation group also had a longer PR interval than the no mutation group ((176.8±32.3) ms vs. (163.9±28.6) ms, P=0.034). The incidence of MACE was higher in the non-SCN5A sodium-related mutation group than that in the no mutation group (55.6% (5/9) vs. 9.1% (9/99), P=0.002). Conclusions:Fever-induced Brugada syndrome patients carrying non-SCN5A mutations exhibit distinct clinical and electrocardiographic characteristics compared to those with SCN5A mutations. These differences warrant attention in clinical practice.