Used in biomedical research to measure visfatin (also known as lipocalin-2 or nicotinamide phosphoribosyltransferase) levels in human biological samples such as serum, plasma, and cell culture supernatants. This ELISA kit enables researchers to study the role of visfatin in metabolic regulation, insulin signaling, inflammation, and obesity-related diseases. It is commonly applied in clinical studies investigating type 2 diabetes, cardiovascular conditions, and metabolic syndrome. The assay provides a quantitative and sensitive method to monitor changes in visfatin concentration under experimental or pathological conditions, supporting both basic science and translational research.