Used in research settings to measure glutathione peroxidase (GSH-PX) enzyme activity in biological samples from rabbits. This ELISA kit enables quantification of GSH-PX levels in serum, plasma, tissue homogenates, and cell lysates, supporting studies on oxidative stress and antioxidant defense mechanisms. Commonly applied in toxicology, pharmacology, and biomedical research to evaluate cellular damage caused by reactive oxygen species and to assess the efficacy of antioxidant treatments. The assay provides a sensitive and specific method for detecting changes in GSH-PX expression under various experimental conditions.