title: [Association of interleukin-1β genetic polymorphisms with obstructive sleep apnea syndrome].
abstract: OBJECTIVE
  To investigate the association between interleukin (IL)-1β genetic polymorphisms and obstructive sleep apnea syndrome (OSAS).
  
  
  METHODS
  Totally 850 individuals with hypertension were included. All of them were checked by polysomnography in the Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region from January to December in 2010. According to the results of polysomnography, these subjects were divided into non-OSAS group (n=225)and OSAS group (n=625). Genetic variations were sequenced and screened at loci over functional region of IL-1β gene in 96 patients with severe OSAS.The typical loci were selected for genotyping by TaqMan-polymerase chain reaction in 850 subjects.
  
  
  RESULTS
  One novel and 5 known variations in the IL-1β gene were identified, and then three representative mutation loci were selected for genotyping.The allele frequency distribution of rs1143633 was significantly different between the OSAS and non-OSAS groups in the total and male populations (χ(2)=9.258, P=0.002;χ(2)=5.119, P=0.024, respectively). Although the parameters of sleep apnea monitoring showed no significant difference in individuals with CC, CT, and TT genotypes of rs1143633 in total, male, and female populations (P>0.05), the median of the apnea hypopnea index of CT genotype was significantly higher than that of CC and TT in total and male populations and the mean of the lowest blood oxygen saturation increased in individuals with CC, CT, and TT genotypes of rs1143633 in total and male populations.Haplotype was no significantly associated with OSAS in total,male,and female populations(P>0.05).Logistic regression analysis showed that CT genotype of rs1143633 variation was a risk factor for OSAS in total and male populations (OR=1.574,95% CI=1.061-2.437,P=0.042;OR=1.887,95% CI=1.091- 3.265,P=0.023).
  
  
  CONCLUSIONS
  The rs1143633 polymorphism in IL-1β gene may be associated with OSAS.
authors.affiliation: Medical School of Shihezi University of Xinjiang,Shihezi,Xinjiang 832000,China.
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Zhang
authors.affiliation: Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Nan-fang
authors.initials: NF
authors.lastname: Li
authors.affiliation: 2Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Xiao-guang
authors.initials: XG
authors.lastname: Yao
authors.affiliation: Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Ling
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Liang
authors.initials: L
authors.lastname: Shao
authors.affiliation: Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Jing
authors.initials: J
authors.lastname: Hong
authors.affiliation: Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yin
authors.affiliation: Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region,Hypertension Institute of Xinjiang,Urumqi 830001,China.
authors.forename: Jian-qiong
authors.initials: JQ
authors.lastname: Kong
mesh_terms: D000328:Adult; D005260:Female; D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D053583:Interleukin-1beta / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D020181:Sleep Apnea, Obstructive / Q000235:genetics*
chemical_list: D053583:Interleukin-1beta