Used in research settings to quantitatively measure IGFBP-4 levels in biological samples such as serum, plasma, and cell culture supernatants. This kit enables scientists to study the role of IGFBP-4 in growth regulation, cancer progression, metabolic disorders, and reproductive health. It is particularly valuable in studies involving the insulin-like growth factor (IGF) signaling pathway, where IGFBP-4 modulates IGF bioavailability and activity. The assay supports high sensitivity and specificity, making it suitable for clinical research and drug development applications focused on endocrine function and disease biomarker discovery.