ABSTRACT
Objective To explore correlation between gene polymorphism of TNF-alpha and thyroid associated ophtalmopa thy (TAO) in Zhuang ethnic population.Methods DNA and serum samples were collected in patients with TAO in Han/Zhuang population.ELISA was applied to detect level of TNF-alpha in serum and PCR was applied to detect polymorphism of TNF-alpha gene 863C_A.Results The levels of TNF-alpha in patients with TAO increased significantly compared with control group (P ＜ 0.05),and more significantly in Zhuang population compared with Han population (P ＜ 0.05) ;gene frequency of CA was significantly higher in patients with TAO in Zhuang population than that in Han population (P ＜ 0.05),while gene frequency of AA was significantly lower (x2 =0.770,2.145,all P ＜ 0.05).Conclusion Serum level of TNF-alpha increases during occurrence of TAO,and the differences of expression level between different nationalities are due to gene polymorphism of TNF-alpha.
ABSTRACT
Objective To investigate potential association of XRCC1-Arg399Gln polymorphism with hyroid-tassociated ophthalmopathy(TAO).Methods XRCC1-Arg399Gln polymorphism was identified by PCR-RFLP in 182 patients with TAO and 182 healthy subjects.Results The significant difference of the allelic frequency distribution was found between TAO and control group(P