Background Chronic hepatitis C virus (HCV) infection is one of the major causes of liver cirrhosis and liver carcinoma. Studies have indicated that an imbalance of cytokine activities could contribute to the pathogenesis of chronic HCV infection. This study aimed to investigate serum levels and gene expression of cytokines (IL-6, TNF-α and TGF-β1) in chronic HCV infection among Malay male subjects. Methods Thirty-nine subjects were enrolled from various health clinics in Kelantan, Malaysia, and divided into two groups: patients with chronic HCV infection (HP) and healthy control (HS). The serum cytokines IL-6, TNF-a—were measured using Luminex assay, and serum TGF-β1 was measured by ELISA. The mRNA gene expression for IL-6, TNF-α and TGF-β1 was measured by real-time reverse transcriptase polymerase chain reaction (RT-PCR). Results There were statistically significant differences in the mean serum levels of IL-6, and TGF-β1 in HP compared to HS group (p = 0.0180 and p = 0.0005, respectively). There was no significant difference in the mean serum level of TNF-α in HP compared to HS group. The gene expression for the studied cytokines showed no significant differences in HP compared to HS group. Conclusion Serum IL-6 was significantly associated with chronic HCV infection.

Cytokines play an important role in modulating inflammation during viral infection, including hepatitis C virus (HCV) infection. Genetic polymorphisms of cytokines can alter the immune response against this infection. The objective of this study was to investigate the possible association between chronic hepatitis C virus infection susceptibility and cytokine gene polymorphism for interleukin-10 (IL-10) rs1800896 and rs1800871, interleukin 6 (IL-6) rs1800795, TNF-α rs1800629, and TGF-β1 rs1800471 in Malay male drug abusers. The study was conducted on 76 HCV-positive (HP) male drug abusers and 40 controls (HCV-negative male drug abusers). We found that there were significant differences in the frequencies of genotype for IL-10 rs1800871 (p = 0.0386) and at the allelic level for IL-10 rs1800896 A versus G allele (p = 0.0142) between the HP group and the control group. However, there were no significant differences in gene polymorphism in interleukin 6 rs1800795, TNF-α rs1800629 and TGF-β1 rs1800471. These findings suggest significant associations between gene polymorphism for IL-10 rs1800871, IL-10 rs1800896 (at the allelic level) and susceptibility to HCV infection among Malay male drug abusers.

Introduction: Hepatitis C virus (HCV) infection frequently leads to liver complications, such as fibrosis, cirrhosis, and hepatocellular carcinoma. The incidence of HCV infection transmission among drug abusers is concerning. Interleukin-1β (IL-1β ) is a pro-inflammatory cytokine secreted during innate and adaptive immune responses and plays a pivotal role in chronic inflammatory diseases. Functional single nucleotide polymorphisms in IL-1β cause it to play different roles in disease susceptibility and progression. This study aimed to investigate the association between genetic polymorphisms of pro-inflammatory cytokines (IL-1β ) and HCV infection susceptibility in Malay male drug abusers. Methods: In total, 48 male Malay drug abusers were included in this retrospective case-control study. Genomic DNA was extracted from whole blood samples and analyzed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) for the IL-1β rs16944 and rs1143634 polymorphisms. Results: Analysis of IL-1β rs1143634 revealed that the C/C genotype was common in both the case and control groups; however, no statistical significance was observed (p = 0.068, χ 2 = 3.755). Genotyping of IL-1β demonstrated that all samples were of the homozygous mutant type (T/T). Conclusion: There was no association between IL-1β polymorphism (rs1143634 and rs16944) and hepatitis C infection susceptibility among Malay male drug abusers.

Cancer is the leading cause of morbidity and mortality worldwide and has put heavy burden on public resources. The incidence of cancer and cancer related deaths are both increasing in trend. The conventional treatment for cancer includes surgery, radiation therapy and chemotherapy. However, the use of radiotherapy and chemotherapy, though effective, can be limited for their toxicities. Better understanding of human immunological system has enabled researchers to develop novel immune-based therapeutic agents for cancer. The effectiveness of immunotherapy, either as a single or combination therapy with conventional treatment has been proven through numerous studies. Immunotherapy also has the advantages over radio-chemotherapy for being less toxic, and more target-specific. There are many types of immunotherapies established for treatment of cancer. These include monoclonal antibodies, prophylactic vaccines, immune adjuvants, and cytokines. Beside the existing therapy, various investigational immunotherapy candidates are currently undergoing active development, such as therapeutic cancer vaccines and CAR-T cell therapy, providing better option for treatment of cancer in the near future.Keywords: cancer, immunotherapy, monoclonal antibodies, vaccines, cytokines, chimeric antigen receptors

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Ebola virus disease (EVD) is an emerging and remerging zoonosis associated with high fatality rate, mainly caused by the Zaire Ebola virus (ZEBOV) and Sudan Ebola virus (SEBOV) strains. Approximately 20 epidemics of EVD have been documented mainly in Central African countries since 1976. Currently, there are no therapeutics agents and vaccines yet approved for EVD. However, several promising therapeutics and vaccines candidates are actively undergoing various phase of clinical development. This study aims to study the EVD dynamics and evaluate the potential impacts of vaccines and other preventive measures on EVD transmission control and significance of medical intervention on outcome of the disease. An initial branch chain model of EVD dynamics was built based on data obtained from previous study. Different epidemiological scenarios for EVD with impacts of intervention were simulated using Berkeley-Madonna Version 8.3.18 software. Every reduction in the exposure rate of EBV infection by 10% produces two- to five-fold improvement in protection against EVD. Transmission control is optimum when the rate of exposure to EBV infection is reduced below 1%. Optimal control of EVD transmission can be achieved through strategic implementation of successful vaccination programme, and other preventive measures as well as rapid delivery of supportive medical care.

The main objective of this study was to obtain information regarding the effects of educational and socio-economic status of the patients on the prescribing pattern of non-steroidal anti-inflammatory drugs (NSAIDs) by the qualified medical personnel in the outpatient departments (OPDs) of two selected polyclinics in Kota Kinabalu, Sabah, Malaysia. A total of 200 selected patients (100 from each polyclinic) attending the OPDs were interviewed using a questionnaire. Again data were collected, photocopied and later analyzed. Educated and higher income group of patients mostly attended in a Private Polyclinic (PPC) whereas less educated and lower income group of patients generally attended UMS Polyclinic (UPC). This was reported as a probable reason for the wide variations in the prescribing pattern with respect to pharmacological sub-classes of NSAIDs in the OPDs of two polyclinics. The present results strongly support that probable reason. The number of patients taking NSAIDs before coming to hospital was more in PPC compared to UPC. They were influenced by pharmacists, friends and doctor’s advice given previously. In conclusion, it may be mentioned that overall prescribing pattern of NSAIDs among two polyclinics is rational.