Used in biomedical research to quantitatively measure glycerol-3-phosphate dehydrogenase (GPDH) levels in human biological samples such as serum, plasma, or cell lysates. This assay helps assess metabolic activity related to glycerol metabolism and is particularly useful in studies involving insulin resistance, diabetes, and adipocyte function. The kit enables high-throughput analysis in clinical research settings and supports investigation into mitochondrial function and lipid metabolism disorders. Results are typically used to compare GPDH expression across experimental conditions and to identify potential biomarkers in metabolic disease studies.