title: [Mapping study of ankylosing spondylitis on HLA region in Jilin population of China].
abstract: To find the susceptible genes of ankylosing spondylitis in Chinese population, we select 11 SNPs on gene HLA gene family that has strong linkage of ankylosing spondylitis in 6p21.3. By case-control study in 79 AS patients and 132 healthy subjects, the distribution of TNF-alpha-850 genotype TT is higher in AS group than that in normal control group (P=0.027); Mutational allele T has a significant statistically difference between AS group and normal control group (P=0.002). By linkage disequilibrium study, there are 5 SNPs present the linkage disequilibrium and the region is 15 kb, including gene LTA, TNF-alpha, LST1 and NCR3; In the haplotypes of the 5 SNPs , the distribution of haplotype TCTTC has statistical difference between AS group and normal control group (chi2=7.406, P=0.0065), the haplotype contains mutational allele T of TNF-alpha-850. The result hints that there may be susceptible sites of AS in this 15 kb region, which may be TNF-alpha-850 C-->T mutation or other sites that around the TNF-alpha-850.
authors.affiliation: Institute of Geriatrics, Ministry of Health, Beijing Hospital, Beijing 100730, China. yawenjilin@sohu.com
authors.forename: Ya-Wen
authors.initials: YW
authors.lastname: Wang
authors.forename: Xiao-Quan
authors.initials: XQ
authors.lastname: Zhu
authors.forename: Yu-Guo
authors.initials: YG
authors.lastname: Song
authors.forename: Liang
authors.initials: L
authors.lastname: Sun
authors.forename: Ze
authors.initials: Z
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D044466:Asian People / Q000235:genetics; D016022:Case-Control Studies; D002681:China; D002874:Chromosome Mapping; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics; D005838:Genotype; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D015810:Linkage Disequilibrium; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D013167:Spondylitis, Ankylosing / Q000208:ethnology / Q000235:genetics*; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics; D055815:Young Adult
chemical_list: D006680:HLA Antigens; D014409:Tumor Necrosis Factor-alpha