Used in research to quantify levels of glutathione peroxidase 4 (GPX4) protein in mouse biological samples such as tissue lysates, serum, or cell cultures. This ELISA kit is particularly valuable in studies related to oxidative stress, ferroptosis, inflammation, and neurodegenerative diseases. It enables researchers to monitor changes in GPX4 expression under experimental conditions, assess the efficacy of antioxidant compounds, or investigate the role of GPX4 in disease models including cancer, liver injury, and neurological disorders. The assay provides a sensitive and specific means to measure GPX4 concentration, supporting mechanistic insights and biomarker validation in preclinical studies.