Used in biomedical research to measure levels of AANAT enzyme in human samples, this ELISA kit helps study the regulation of melatonin synthesis. It is particularly valuable in circadian rhythm research, sleep disorder studies, and neuroendocrine investigations. Researchers use it to assess how AANAT activity changes under different physiological conditions, in response to light exposure, or during disease states like depression, insomnia, or shift work disorder. The kit enables high-throughput, quantitative analysis of AANAT protein levels in cell lysates, tissue extracts, or biological fluids, supporting both basic science and clinical research.