Used in neuroscience and sleep disorder research to quantify levels of orexin-A (also known as hypocretin-1) in biological samples such as cerebrospinal fluid, plasma, or tissue extracts. This ELISA kit enables accurate measurement of orexin-A concentration, which is critical in studying narcolepsy, insomnia, and other sleep-related conditions, as orexin-A plays a key role in regulating wakefulness and appetite. It is widely used in preclinical studies, pharmaceutical development, and clinical diagnostics to assess hypothalamic function and monitor changes in orexin signaling. The assay is suitable for high-throughput analysis and provides a reliable tool for investigating the role of the orexin system in behavioral and metabolic research.