The Protective Effect of Zinc Supplementation Against Oxidative Stress and Oxidative Modifications of Cellular Macromolecules in the Mandibular Bone of Rats Exposed to Cadmium.

ABSTRACT: In a rat model simulating moderate and relatively high human exposure to cadmium (Cd; 5 and 50 mg/L, respectively, for 12 months), it was examined whether zinc (Zn) supplementation (30 and 60 mg/L, increasing the daily intake of this element by 71% and 146%, respectively) could protect against this xenobiotic-caused disruption of the oxidative-reductive balance in the mandibular bone tissue and the subsequent oxidative damage to nucleic acids, proteins, and lipids. The exposure to Cd weakened the enzymatic antioxidative barrier (superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx)) and decreased the total antioxidative status (TAS) of this tissue. The treatment with Cd also increased the concentration of hydrogen peroxide (H₂O₂) and the total o

SUBMITTER: Bijowski K 

PROVIDER: S-EPMC12729647 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature