Used in clinical and research laboratories to quantitatively measure α1-microglobulin levels in biological samples such as urine, serum, or plasma. This assay is particularly valuable in assessing kidney function, especially proximal tubular damage, as α1-MG is a sensitive marker for early renal tubular injury. It is also used in studies related to oxidative stress and inflammation, given α1-MG's role in binding heme and free radicals. The ELISA kit format allows for high specificity and sensitivity, making it suitable for both diagnostic research and monitoring disease progression in conditions like diabetes, hypertension, and chronic kidney disease.