Used in neuroscience research to quantify levels of neurotrophic factor 3 (NT-3) in rat biological samples such as brain tissue, cerebrospinal fluid, or cell culture supernatants. Helps investigate nerve cell development, survival, and regeneration in experimental models of neurological disorders including spinal cord injury, Alzheimer's disease, and peripheral neuropathy. Enables researchers to assess changes in NT-3 expression in response to therapeutic interventions or disease progression. Widely applied in preclinical studies to understand neurotrophin signaling and support drug development targeting neurodegenerative conditions.