Association of polymorphisms of innate immunity-related genes and tuberculosis susceptibility in Mongolian population |
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| Authors: | Jie Han Pengyuan Ning An Ge Xiaoxia Ma Joshua Alexander Burton Caiting Yang Xiaogang Cui Changxin Wu Jinqi Hao Li Dong |
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| Affiliation: | 1. Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China;2. Faculty of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo 1346, Norway;3. School of Public Health, Baotou Medical College, Baotou 014040, Inner Mongolia, China |
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| Abstract: | BackgroundsGenetic polymorphism of the toll-like receptor 2, 4 (TLR2, TLR4) and natural resistance-associated macrophage protein 1 (NRAMP1) genes may affect host immune response to Mycobacterium tuberculosis (Mtb) and lead to the variation of susceptibility to tuberculosis (TB) in humans. However, the association of single nucleotide polymorphisms (SNP) in these genes and the susceptibility to TB in Mongolian population has not been investigated.MethodsWe conducted a genetic association study including 197 Mongolian TB patients and 217 Mongolian healthy controls in Inner Mongolia, China. DNA of blood samples was extracted and genotyped for 5 SNPs in TLR4, 4 SNPs in TLR2 and 5 SNPs in NRAMP1 by next-generation sequencing. A logistic regression was performed and odds ratios (OR) with 95% confidence intervals (CI) were calculated to estimate the risk at TB by each SNP.ResultsThe most significant locus associated with the susceptibility to TB was TLR4 rs11536889. The frequency for allele C of TLR4 rs11536889 was 16.0% in TB patients and 23.5% in healthy controls, respectively. Rs11536889 C/C genotype of TLR4 was significantly associated with the low susceptibility against TB compared to G/G genotype in the dominant model (OR 0.62, 95% CI 0.41–0.94).ConclusionsThe TLR4 rs11536889 polymorphisms might be an indicative of the low susceptibility to TB in Mongolian population, which provides valuable information for the generation of effective strategy or measurement against TB in Mongolian population. |
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| Keywords: | Tuberculosis SNP Mongolian Mtb" },{" #name" :" keyword" ," $" :{" id" :" k0040" }," $$" :[{" #name" :" text" ," $$" :[{" #name" :" italic" ," _" :" Mycobacterium tuberculosis TB" },{" #name" :" keyword" ," $" :{" id" :" k0050" }," $$" :[{" #name" :" text" ," _" :" tuberculosis SNP" },{" #name" :" keyword" ," $" :{" id" :" k0060" }," $$" :[{" #name" :" text" ," _" :" single nucleotide polymorphisms TLR" },{" #name" :" keyword" ," $" :{" id" :" k0070" }," $$" :[{" #name" :" text" ," _" :" Toll-like receptor NRAMP1" },{" #name" :" keyword" ," $" :{" id" :" k0080" }," $$" :[{" #name" :" text" ," _" :" Natural resistance-associated macrophage protein 1 OR" },{" #name" :" keyword" ," $" :{" id" :" k0090" }," $$" :[{" #name" :" text" ," _" :" odds ratios CI" },{" #name" :" keyword" ," $" :{" id" :" k0100" }," $$" :[{" #name" :" text" ," _" :" confidence intervals LPS" },{" #name" :" keyword" ," $" :{" id" :" k0110" }," $$" :[{" #name" :" text" ," _" :" lipopolysaccharide PTB" },{" #name" :" keyword" ," $" :{" id" :" k0120" }," $$" :[{" #name" :" text" ," _" :" pulmonary tuberculosis HWE" },{" #name" :" keyword" ," $" :{" id" :" k0130" }," $$" :[{" #name" :" text" ," _" :" Hardy-Weinberg equilibrium LD" },{" #name" :" keyword" ," $" :{" id" :" k0140" }," $$" :[{" #name" :" text" ," _" :" linkage disequilibrium LTBI" },{" #name" :" keyword" ," $" :{" id" :" k0150" }," $$" :[{" #name" :" text" ," _" :" latent tuberculosis infection BCG" },{" #name" :" keyword" ," $" :{" id" :" k0160" }," $$" :[{" #name" :" text" ," _" :" Bacillus Calmette-Guerin |
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