Biophysical and biochemical study exploring resveratrol protective potential against gamma irradiation effects

Abstract Background Gamma irradiation causes oxidative stress and disturbs the physiological balance in organisms. Natural antioxidants, like resveratrol (Res), can buffer these effects. The study's goal is to find out whether Res can help reverse changes caused by gamma irradiation in male Wistar rats' total antioxidant capacity (TAC), antioxidant enzyme activity, electrolyte levels, and hemoglobin structure. Methods Twenty-four rats were divided into four groups: control, Res-treated, irradiated, and Res + irradiated. Blood and tissue samples were collected on the day 16th of the experiment. The levels of antioxidants, catalase (CAT) activity, glutathione (GSH), and glutathione peroxidase (GPx) were estimated along with electrolyte level measurements. UV–FTIR and dielectric spectroscopy were used to assess conformational changes in hemoglobin. Results Gamma irradiation decreased antioxidant levels and increased markers of oxidative stress. Resveratrol treatment increased the antioxidant capacity and levels of nitric oxide and decreased malondialdehyde levels. Further, Res protected the structure of hemoglobin and decreased the radiation-induced damage. Conclusion Resveratrol shows potential as a protective agent against gamma irradiation-induced oxidative stress by enhancing antioxidant defenses and restoring hemoglobin structure.