PMID- 23620109 OWN - NLM STAT- MEDLINE DCOM- 20131112 LR - 20221207 IS - 1436-2023 (Electronic) IS - 0949-2658 (Linking) VI - 18 IP - 4 DP - 2013 Jul TI - An exon polymorphism of programmed cell death 1 gene is associated with both the susceptibility and thoracolumbar kyphosis severity of ankylosing spondylitis in a Chinese Han population. PG - 514-8 LID - 10.1007/s00776-013-0385-2 [doi] AB - BACKGROUND: Although human leukocyte antigen (HLA)-B27 gene is the major susceptible gene associated with ankylosing spondylitis (AS), it has been recognized that non-HLA-B27 genes also play key roles in the development of AS. The purpose of this study is to investigate whether a single nucleotide polymorphism (SNP) in the exon region of the programmed cell death 1 (PDCD-1) gene is associated with the susceptibility or the thoracolumbar kyphosis severity of AS in a Chinese Han population. METHODS: A total of 255 AS patients between January 2008 and October 2012 were recruited in this study. Two hundred and three healthy patients were recruited as normal controls. According to the severity of thoracolumbar kyphosis, the AS patients were further divided into group A (patients with kyphosis <70 degrees , n = 135) and group B (patients with kyphosis >/=70 degrees , n = 120). One exon polymorphism, rs2227982 (C/T) of PDCD-1 gene, was selected for analysis. Genotyping was performed by TaqMan probe assays in all the subjects. RESULTS: There were significant differences of genotype distributions of rs2227982 between AS patients and normal controls. The frequency of the T allele was significantly higher in AS patients when compared with normal controls. The frequency of the T allele in group B was significantly higher than that in group A. Carriage of the TT genotype increased the risk of severe thoracolumbar kyphosis 1.9-fold in AS patients. CONCLUSIONS: Our study confirms a significant association between the SNP rs2227982 of PDCD-1 gene and the susceptibility of AS in a Chinese Han population. Moreover, the TT genotype is suggested to be associated with the severity of thoracolumbar kyphosis secondary to AS. FAU - Qian, Bang-ping AU - Qian BP AD - Department of Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Zhongshan Road 321, Nanjing 210008, China. FAU - Wang, Xin-qiang AU - Wang XQ FAU - Qiu, Yong AU - Qiu Y FAU - Jiang, Hua AU - Jiang H FAU - Ji, Ming-liang AU - Ji ML FAU - Jiang, Jun AU - Jiang J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130426 PL - Japan TA - J Orthop Sci JT - Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association JID - 9604934 RN - 0 (Programmed Cell Death 1 Receptor) SB - IM MH - Adult MH - Asian People/genetics MH - Exons/*genetics MH - Female MH - Genetic Predisposition to Disease MH - Humans MH - Kyphosis/etiology/*genetics MH - Lumbar Vertebrae/*abnormalities MH - Male MH - Middle Aged MH - *Polymorphism, Single Nucleotide MH - Programmed Cell Death 1 Receptor/*genetics MH - Spondylitis, Ankylosing/complications/*genetics MH - Thoracic Vertebrae/*abnormalities MH - Young Adult EDAT- 2013/04/27 06:00 MHDA- 2013/11/13 06:00 CRDT- 2013/04/27 06:00 PHST- 2012/12/28 00:00 [received] PHST- 2013/03/12 00:00 [accepted] PHST- 2013/04/27 06:00 [entrez] PHST- 2013/04/27 06:00 [pubmed] PHST- 2013/11/13 06:00 [medline] AID - S0949-2658(15)30442-5 [pii] AID - 10.1007/s00776-013-0385-2 [doi] PST - ppublish SO - J Orthop Sci. 2013 Jul;18(4):514-8. doi: 10.1007/s00776-013-0385-2. Epub 2013 Apr 26.