Used for the quantitative measurement of glutathione peroxidase (GSH-Px) enzyme activity in human biological samples such as serum, plasma, or tissue homogenates. This ELISA kit is widely applied in clinical research and diagnostic laboratories to assess oxidative stress levels in patients. It helps in studying diseases associated with oxidative damage, including cardiovascular disorders, neurodegenerative diseases, diabetes, and cancer. The assay enables researchers to evaluate antioxidant defense mechanisms and monitor the effectiveness of antioxidant therapies. Due to its high sensitivity and specificity, it is a reliable tool for biomarker analysis in human health and disease studies.