Abstract
Background: Cyclooxygenase-2 (COX-2) enzyme is one of the major mediators during inflammation reactions, and COX-2 gene polymorphisms of rs20417 and rs689466 have been reported to be associated with several inflammatory diseases. However, potential links between the two polymorphisms and risk of developing post-traumatic osteomyelitis remain unclear. The present study aimed to investigate associations between the rs20417 and rs689466 polymorphisms and susceptibility to post-traumatic osteomyelitis in Chinese population.Methods: A total of 189 patients with definite diagnosis of post-traumatic osteomyelitis and 220 healthy controls were genotyped for rs20417 and rs689466 using the SNaPshot genotyping method. Chi-square test was used to compare differences of genotype distributions as well as outcomes of five different genetic models between the two groups.Results: Significant association was found between rs689466 and post-traumatic osteomyelitis by recessive model (GG vs. AA + AG) (OR = 1.74, 95% CI: 1.098–2.755, p = .018). Although no statistical differences were identified of rs689466 between the two groups by allele model (p = .098) or homozygous model (p = .084), outcomes revealed a tendency that allele G may be a risk factor and people of GG genotype may be in a higher risk to develop post-traumatic osteomyelitis in Chinese population. However, no significant link was found between rs20417 and susceptibility to post-traumatic osteomyelitis in this Chinese cohort.Conclusions: To our knowledge, we reported for the first time that COX-2 gene polymorphism rs689466 may contribute to the increased susceptibility to post-traumatic osteomyelitis in Chinese population.
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