Used in research settings to measure glutathione peroxidase (GPx) enzyme activity in biological samples from mice. This ELISA kit enables quantification of GPx activity, which is a key marker of antioxidant defense mechanisms. It is commonly applied in studies related to oxidative stress, such as those investigating aging, neurodegenerative diseases, diabetes, and inflammation in mouse models. The kit supports high-throughput analysis and provides a reliable method to assess the impact of drugs, toxins, or genetic modifications on antioxidant enzyme function.