Seyithan TAYSI, Elif DEMİR, Halis ALTAY, Habip BİNİCİ, İsmail AYTAÇ, Muhammed Enes TAYSI

Radioprotective Effects of Propolis and Caffeic acid phenethyl ester on the Tongue-Tissues of Total-Head Irradiated Rats

Objective: This study aimed to investigate the radioprotective effects of propolis and caffeic acid phenethyl ester (CAPE) againstradiation-induced damage in the tongue-tissues of rats exposed to total cranial gamma irradiation.Methods: Fifty-four Sprague-Dawley rats were randomly divided into six groups. An appropriate control group was also studied.The animals were euthanized on day 10, and tongue-tissues were collected for evaluating biochemical oxidative parameters.Results: Lipid hydroperoxides (LOOH), total oxidant status (TOS), oxidative stress index (OSI) levels and xanthine oxidase (XO) activity, and markers of oxidative stress were significantly higher, while paraoxonase (PON) activity was significantly lower for irradiatedrats (IR) group compared to the other groups. When LOOH, TOS, OSI values, and XO activity in the propolis+IR and CAPE+IR groupswere evaluated, there was no statistically significant difference between those ones and all control groups. In terms of the total-SH levels, the propolis+IR group was found to be significantly higher than all other groups. There was no significant difference inarylesterase (ARE) activity, ceruloplasmin (Cp) levels.Conclusion: Propolis and CAPE reduce oxidative stress and have antioxidant effects that may be useful agents of ionizing radiation-induced tissue damage

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