Used to measure Prostaglandin E1 (PGE1) levels in biological samples such as serum, plasma, or tissue homogenates from rabbits. This assay is commonly applied in research settings to study inflammatory responses, vascular function, and reproductive processes where PGE1 plays a regulatory role. The kit enables accurate quantification of PGE1 concentrations, supporting investigations into prostaglandin-mediated pathways, drug effects, and disease mechanisms in rabbit models. It is particularly useful in pharmacological and physiological studies involving smooth muscle relaxation, platelet aggregation, and immune modulation.