Abstract
The associations between malignant transformation of oral potentially malignant disorders (OPMDs), oral cancer development and prognosis, and apurinic/apyrimidinic endonuclease 1 (APE1) functional polymorphisms are unclear. Patients with OPMDs, patients with oral cancer, and healthy controls from the community were recruited to determine the effects of APE1 polymorphisms on malignant transformation, overall survival, and genetic susceptibility, respectively. The APE1 Asp148Glu polymorphisms significantly correlated with a high hazard ratio for OPMD malignant transformation (adjusted hazard ratio [AHR] = 2.29; 95% confidence interval [CI] = 1.44-3.74) and low overall survival in oral cancer patients (AHR = 1.71, 95% CI = 1.11-2.56) according to follow-up and survival analysis. However, APE1 polymorphisms did not significantly correlate with development of oral cancer in the case-control study and logistic regression analysis. These results indicate that APE1 Asp148Glu polymorphisms may have indirect roles in increasing the OPMD malignant transformation rate and in decreasing overall survival in oral cancer patients.
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