title: Meta-analysis of microRNA-146a rs2910164 G>C polymorphism association with autoimmune diseases susceptibility, an update based on 24 studies.
abstract: BACKGROUND
  Published data showed that the susceptibility of autoimmune diseases (ADs) was associated with the polymorphism rs2910164 in microRNA-146a (miR-146a). However, the results remain controversial so far. Two meta-analyses published in 2013 and 2014 came to opposite conclusions. In order to derive a more precise estimation of the relationship, we performed this meta-analysis.
  
  
  METHODS
  We searched the PubMed, OvidSP and CNKI databases (published prior to September 8th, 2014) and extracted data from eligible studies. The procedure of meta-analysis was performed by using the Stata 12.0 software. Random effect model or fixed effect model were chosen respectively, according to the between study heterogeneities.
  
  
  RESULTS
  A total of 24 case-control studies, 11 more than previous meta-analysis on this topic, were involved. We took stratified analyses by different ethnicities and different types of diseases in different genetic models. In Caucasian subgroup, significant increased risks of GC genotype and GC+CC genotype with ADs susceptibility were found in heterozygote model (GC vs GG, OR = 1.38, 95% CI 1.04-1.83, p = 0.024) and dominant model (GC+CC vs GG, OR = 1.37, 95% CI 1.01-1.85, p = 0.041), respectively. Meanwhile, in other disease subgroup, significant increased risks of C allele, CC genotype and GC+CC genotype were found in allele model (C vs G, OR = 1.16, 95% CI 1.04-1.31, p = 0.010), homozygote model (CC vs GG, OR = 1.42, 95% CI 1.10-1.84, p = 0.006) and dominant model (GC+CC vs GG, OR = 1.25, 95% CI 1.04-1.51, p = 0.020), respectively.
  
  
  CONCLUSIONS
  MiR-146a rs2910164 G>C polymorphism was associated with the susceptibility of ADs.
authors.affiliation: Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China.
authors.forename: Changzheng
authors.initials: C
authors.lastname: Li
authors.affiliation: Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
authors.forename: Weijun
authors.initials: W
authors.lastname: Fu
authors.affiliation: Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Intensive Care Unit, Chinese PLA General Hospital, Beijing, China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Mao
authors.affiliation: Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
authors.forename: Weiran
authors.initials: W
authors.lastname: Lv
authors.affiliation: Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Biotechnology, Southern Medical University, Guangzhou, Guangdong, China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Zhou
mesh_terms: D001327:Autoimmune Diseases / Q000235:genetics*; D016022:Case-Control Studies; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006801:Humans; D035683:MicroRNAs / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors
chemical_list: C542542:MIRN146 microRNA, human; D035683:MicroRNAs
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