Objective: To study the association between single nucleotide polymorphisms of thioredoxin reductase-2 (TrxR2) gene and the susceptibility to Kashin-Beck disease (KBD).
Methods: Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to analyze the genotype frequencies of rs5748469 in TrxR2 gene in 84 KBD patients and 109 healthy control subjects.
Results: The genotype frequencies of A/A, A/C, and C/C in the KBD patients were 83.33%, 15.48% and 1.19%, as compared with the frequencies of 74.31%, 25.69%, and 0.00% in the healthy control, respectively, showing no significant difference in the single nucleotide polymorphisms of TrxR2 gene between the two groups (P=0.13).
Conclusion: No obvious correlation can be found between rs5748469 polymorphisms in TrxR2 gene and the susceptibility to KBD.