EVALUATION OF DYNAMIC THIOL-DISULFIDE HOMEOSTASIS ON HPV POSITIVE-WOMEN IN PROGRESSION TO CERVICAL INTRAEPITHELIAL LESION

Abstract

Objective: Dynamic thiol disulfide homeostasis (TDH) is critical in cervical carcinogenesis at HPV infection as a sign of antioxidant consumption native and total thiol levels decrease in progress to cervical intraepithelial lesions. TDH is the main actor in signaling pathways, apoptosis, antioxidant and detoxification reactions. In this study, we aimed to evaluate the effect of TDH intraepithelial progression of cervical precancerous lesions on HPV positive women. Methods: This was a prospective cross-sectional study. Subjects were selected from newly diagnosed high risk HPV DNA-positive patients. TDH results were calculated as the levels of disulfide, native and total thiol, the ratios of disulfide/total thiol (SS/SH+SS), disul-fide/native thiol (SS/SH) and native thiol/total thiol (SH/SH+SS). Results: A total of 146 women were included in the study. Study groups were as group one; control included 66 participants, group two; HPV DNA-positive women without preinvasive cervical lesion included 30 participants and group three; HPV DNA-positive women with preinvasive cervical lesion included 50 participants. Native and total thiol levels were ele-vated on HPV-positive women without preinvasive cervical lesions. There were no signifi-cant differences between groups related to the ratios of SS/SH, SS/ Total SH, SH/ Total SH levels. Conclusions: HPV infection related to oxidative stress has effects on oxidant/antioxidant balance and could be demonstrated in systemic circulation by TDH parameters. Consump-tion of thiol substances play role in the cervical neoplastic process, replacement with antiox-idants would be a treatment option for HPV infections.

Keywords

• Antioxidants
• Cervical intraepithelial lesions
• Human papillomavirus
• Oxdative stress
• Thiol-disulfide homeostasis

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