Used to measure N-acetyl-beta-D-glucosaminidase (NAG) enzyme activity in biological samples from mice, such as serum, urine, tissue homogenates, or cell culture supernatants. This ELISA kit enables researchers to assess lysosomal enzyme activity, which serves as a biomarker for kidney injury, particularly proximal tubule damage. It is widely applied in preclinical studies to evaluate nephrotoxicity caused by drugs, chemicals, or disease conditions in mouse models. The assay provides a sensitive and specific colorimetric measurement, allowing for early detection of renal dysfunction before changes in traditional markers like creatinine or BUN occur. It supports research in toxicology, pharmacology, and renal disease mechanisms.