Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (51): 8208-8212.doi: 10.3969/j.issn.2095-4344.2015.51.002

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Bradykinin B2 receptor gene polymorphisms influence the susceptibility of knee osteoarthritis 

Feng Hui1, Feng Hu2, Guo Kai-jin2, Chen Shuo3, Yuan Feng2   

  1. 1Graduate School of Xuzhou Medical College, Xuzhou 221000, Jiangsu Province, China; 2Department of Orthopedics, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221000, Jiangsu Province, China; 3Department of Orthopedics, Nanjing General Hospital of Nanjing Military Command, Nanjing 210002, Jiangsu Province, China
  • Received:2015-10-28 Online:2015-12-10 Published:2015-12-10
  • Contact: Yuan Feng, M.D., Chief physician, Department of Orthopedics, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221000, Jiangsu Province, China Corresponding author: Chen Shuo, M.D., Attending physician, Department of Orthopedics, Nanjing General Hospital of Nanjing Military Command, Nanjing 210002, Jiangsu Province, China
  • About author:Feng Hui, Studying for Master’s degree, Attending physician, Graduate School of Xuzhou Medical College, Xuzhou 221000, Jiangsu Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81301582; Military Medical Development  
    Project for the Youth, No. 13QNP044; China Postdoctoral Science Foundation, No. 2015M572812; the Clinical Medicine Scientific Special Fund of Jiangsu Province, No. BL2012002

Abstract:

BACKGROUND: It has been reported that bradykinin B2 receptor (BDKRB2) antagonists can produce long-lasting analgesic effect in patients with knee osteoarthritis, and BDKRB2 plays an important role in the development of osteoarthritis.
OBJECTIVE: To further verify the association BDKRB2 polymorphisms and osteoarthritis susceptibility.
METHODS: 278 patients with primary knee osteoarthritis and 291 healthy volunteers as controls were enrolled. BDKRB2 gene polymorphisms were genotyped.
RESULTS: The genotype distributions and allele frequencies of +9/-9 bp polymorphisms significantly differed between osteoarthritis patients and healthy controls. The -9/-9 polymorphisms were significantly associated with the increased risk and the radiographic severity of knee osteoarthritis compared to the +9/+9 genotype. The presence of -9 bp was associated with higher Kellgren-Lawrence grade in knee osteoarthritis. These findings suggest that the +9/-9 bp polymorphisms of BDKRB2 gene may be used as a molecular marker for the susceptibility and severity of knee osteoarthritis.
 

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