Used in biomedical research to quantify substance P receptor (SP-R) levels in tissue or cell samples, this ELISA kit enables the study of neurokinin-1 receptor activity involved in pain transmission, inflammation, and neurodegenerative processes. It is widely applied in neuroscience, immunology, and pharmacology to evaluate receptor expression changes in response to drugs, disease states, or experimental treatments. The assay supports high-throughput screening and provides a reliable tool for investigating the role of the substance P/NK1 receptor system in conditions such as chronic pain, depression, and inflammatory diseases.