Used in neuroscience research to quantify Rat Neurotrophic Factor 4 (NT-4) levels in biological samples such as brain tissue, cerebrospinal fluid, or cell culture supernatants. The ELISA kit enables researchers to study the role of NT-4 in neuronal survival, differentiation, and synaptic plasticity. It is commonly applied in studies related to neurodegenerative diseases, nerve injury, and neurodevelopment. The assay provides a sensitive and specific method to monitor changes in NT-4 expression under experimental conditions, supporting drug development and mechanistic studies in rodent models.