Used to measure levels of platelet-derived growth factor-BB (PDGF-BB) in biological samples such as serum, plasma, or cell culture supernatants from rats. This assay is commonly applied in research settings to study processes involving cell growth, tissue repair, and angiogenesis. It is particularly useful in cardiovascular research, wound healing studies, and cancer research where PDGF-BB signaling plays a key role. The kit enables sensitive and specific quantification, supporting investigation into disease mechanisms and evaluation of therapeutic interventions in rodent models.