Used in research settings to quantify soluble leptin receptor levels in biological samples such as serum, plasma, and cell culture supernatants. This assay helps investigate leptin signaling pathways, which play a key role in regulating appetite, metabolism, and body weight. The kit is valuable in studies related to obesity, metabolic syndrome, diabetes, and inflammatory conditions where leptin resistance or altered receptor levels are implicated. It enables high-throughput, accurate measurement, supporting both clinical research and preclinical investigations into energy homeostasis and endocrine function.