TLR2 Arg753Gln Gene Polymorphism Associated with Tuberculosis Susceptibility: An Updated Meta-Analysis.

Objective. To date, a series of studies were conducted to investigate the association between TLR2 (Toll-like receptor 2) Arg753Gln gene polymorphism and tuberculosis (TB). However, the results were inconsistent. This meta-analysis was performed to elucidate the roles of TLR2 Arg753Gln gene polymorp...

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Publicado en:BioMed Research International pp. 1 - 10
Autores principales: Hu, Lelin, Tao, Huihui, Tao, Xinrong, Tang, Xiaolong, Xu, Congjing
Formato: meta analysis research systematic review tables/charts Journal Article
Publicado: Wiley-Blackwell 1/13/2019
Acceso en línea:Ver este registro en EBSCOhost
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      dt: 1/13/2019
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      pub: Wiley-Blackwell
      place: Malden, Massachusetts
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        10.1155/2019/2628101
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        atl: TLR2 Arg753Gln Gene Polymorphism Associated with Tuberculosis Susceptibility: An Updated Meta-Analysis.
      aug:
        au:
          Hu, Lelin
          Tao, Huihui
          Tao, Xinrong
          Tang, Xiaolong
          Xu, Congjing
        affil: Department of Clinical Medicine, School of Medicine, Anhui University of Science and Technology, Huainan 232001, Anhui, China
      sug:
        subj:
          Tuberculosis Familial and Genetic
          Tuberculosis Risk Factors
          Polymorphism, Genetic
          Toll-Like Receptors
          Disease Susceptibility
          Human
          Systematic Review
          Meta Analysis
          PubMed
          Medline
          Data Analysis Software
          Alleles
          Odds Ratio
          Confidence Intervals
          Heterozygote
          Asians
          White Persons
          Ethnic Groups
          Tuberculosis, Pulmonary Risk Factors
      ab: Objective. To date, a series of studies were conducted to investigate the association between TLR2 (Toll-like receptor 2) Arg753Gln gene polymorphism and tuberculosis (TB). However, the results were inconsistent. This meta-analysis was performed to elucidate the roles of TLR2 Arg753Gln gene polymorphism in TB. Methods. All available articles were searched from online databases such as PubMed, Medline, CNKI, and Wanfang. Statistical analyses were performed using the STATA12.0 (Stata Corp LP, College Station, TX, United States) software. Results. 32 case-control studies comprising 5943 cases and 5991 controls were identified in this meta-analysis. Overall, the TLR2 Arg753Gln gene polymorphism was associated with high TB risk in allele model (A vs. G: OR=2.20, 95%CI=1.60-3.04, P≤0.01), dominant model (AA+AG vs. GG: OR=2.70, 95%CI=2.00-3.65, P≤0.01), and heterozygote model (AG vs. GG contrast: OR=2.97, 95%CI=2.39-3.69, P≤0.01). Subgroup analysis by ethnicity indicated that the A allele increased susceptibility to TB in Asian (OR=3.35, 95%CI=2.36-4.74) and Caucasian populations (OR=2.62, 95%CI=1.77-3.87), but not in African (2.08, 95%CI=0.62-2.72) or mixed populations (OR=0.76, 95%CI=0.36-1.14). Stratified analysis by sample type suggested that the A allele associated with high pulmonary tuberculosis (PTB) risks (OR=2.43, 95%CI=1.66-3.54), but not with extra pulmonary tuberculosis (EPTB) (OR=1.84, 95%CI=0.83-4.06). Conclusion. this meta-analysis suggested the following: (1) TLR2 Arg753Gln polymorphism is significantly associated with high TB risk. (2) In subgroup analysis based on ethnicity, TLR2 Arg753Gln polymorphism elevates the risk of TB in Asian and Caucasian populations, but not in African or mixed populations. (3) Stratified by sample type, TLR2 Arg753Gln polymorphism is associated with increased PTB risk, but not with EPTB.
      pubtype: Academic Journal
      doctype:
        meta analysis
        research
        systematic review
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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