title: Association between Polymorphism of Interleukin-23 Receptor and Hashimoto's Thyroiditis in Chinese Han Population of Shandong.
abstract: OBJECTIVE
  The interleukin-23 receptor (IL-23R) has been shown to be associated with autoimmune diseases in many different populations. This study aimed to investigate the association between IL-23R gene polymorphism and susceptibility to Hashimoto's thyroiditis (HT) in Chinese Han population of Shandong.
  
  
  METHODS
  A case-control cohort study was performed in 145 HT patients from First People's Hospital of Jining between February 2010 to October 2013 and 150 healthy controls. Two single nucleotide polymorphisms located in the promoter region of IL-23R gene (rs17375018 and rs7517847) were examined by polymerase chain reaction-restriction fragment length polymorphism analysis. Hardy-Weinberg equilibrium was performed using the Chi-square test. Genotype frequencies were estimated by direct counting, and allele and genotype frequencies between patients and controls were analyzed by the Chi-square test.
  
  
  RESULTS
  The rs17375018 GG genotype and the G allele were significantly increased in HT patients compared with healthy controls (P = 0.034 and P = 0.013, respectively). No association was identified between HT patients and healthy controls in rs7517847.
  
  
  CONCLUSIONS
  The study demonstrated that polymorphism of IL-23R gene rs17375018 is highly associated with HT in Chinese Han population of Shandong, suggesting that IL-23R gene polymorphism (rs17375018 G) may play a critical role in susceptibility to HT.
authors.forename: Zhi-Hua
authors.initials: ZH
authors.lastname: Li
authors.affiliation: Department of Surgery, The Affiliated Hospital of Jining Medical University, First People's Hospital of Jining, Jining, Shandong 272011, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Han
authors.forename: Yu-Fei
authors.initials: YF
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Dai
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Chun-Xia
authors.initials: CX
authors.lastname: Li
authors.forename: Qun
authors.initials: Q
authors.lastname: Ma
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D044466:Asian People; D016022:Case-Control Studies; D015331:Cohort Studies; D005260:Female; D020022:Genetic Predisposition to Disease / Q000235:genetics; D005838:Genotype; D050031:Hashimoto Disease / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide / Q000235:genetics; D018123:Receptors, Interleukin / Q000235:genetics*; D055815:Young Adult
chemical_list: C515500:IL23R protein, human; D018123:Receptors, Interleukin