Role of Interferon-Gamma +874 A/T Single-Nucleotide Polymorphism and Tuberculosis Susceptibility of Pediatric Population in North Sumatera, Indonesia
DOI:
https://doi.org/10.3889/oamjms.2021.7441Keywords:
Tuberculosis, Interferon-gamma, Single-nucleotide polymorphism, 874 A/T, Pediatric, IndonesiaAbstract
BACKGROUND: Tuberculosis (TB) remains to be a leading cause of morbidity and mortality worldwide. The immune defense against Mycobacterium tuberculosis (M. tuberculosis) is complicated. Interferon gamma (IFN-g) is the main cytokine involved in the immune response of TB. To date, the role of +874 A/T single nucleotide polymorphism (SNP) and TB disease susceptibility continue to be controversial.
OBJECTIVES: The aim of this study was to investigate the role of +874 A/T SNP and TB disease susceptibility of pediatric population in North Sumatera, Indonesia
METHODS: A case control study was conducted in Medan and Batubara, North Sumatera, Indonesia from January to December 2016. A total of 51 children with TB and 51 healthy controls were enrolled in this study. Subjects were 2 months to 14 years old age children diagnosed with TB and written informed consent from the parents or the caregivers to participate. Subjects were withdrawn from the study when immunodeficiency condition was found or suffered from other infection disease. DNA samples were obtained from all of the subjects. +874 A/T SNP was identified by performing the amplification refractory mutational system - polymerase chain reaction (ARMS-PCR) method. IFN-g levels were measured by using human enzyme-linked immunosorbent assay/ELISA. Data analysis was performed using chi square and Mann Whitney test. p value <0.05 was considered significant.
RESULTS: The result of this study reveals the presence of AA, AT and TT genotype in TB patients were 31 (60.8%), 20 (39.2%) and 0 (0%); respectively (p=0.023). Significant decreased production of IFN-g levels (p=0.042) were found in TB patients 9.41 (1.10 – 28.06) pg/ml.
CONCLUSION: Our study demonstrated significant evidence of the role of +874 A/T SNP and TB disease susceptibility of pediatric population in North Sumatera, Indonesia predominantly AA genotype. Significant decreased production of IFN-g reported among pediatric TB.
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References
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Copyright (c) 2021 Rini Savitri Daulay, Rina Amalia C. Saragih, Ridwan Muchtar Daulay, Ratna Akbari Ganie, Gino Tann, Bambang Supriyatno (Author)
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