Used in biomedical research to quantify levels of dipeptidyl peptidase IV (DPP IV) enzyme in human serum, plasma, or cell culture samples. This ELISA kit enables accurate measurement of DPP IV activity, which is important in studies related to glucose metabolism, type 2 diabetes, and metabolic syndrome. It is also applied in immunology and oncology research, as DPP IV (also known as CD26) plays a role in immune cell regulation and tumor progression. The assay supports high-throughput analysis and is commonly used in clinical research settings to evaluate biomarkers and monitor therapeutic responses.