Used in biomedical research to measure levels of 11-β-hydroxysteroid dehydrogenase type 1 enzyme in rat samples. This enzyme plays a key role in regulating glucocorticoid metabolism, particularly the conversion of inactive cortisone to active cortisol (corticosterone in rats). The kit enables researchers to study enzyme activity in tissues such as liver, adipose, and brain, helping investigate metabolic disorders like obesity, insulin resistance, and type 2 diabetes. It is also applied in studies exploring the effects of drugs or experimental compounds on HSD11β1 expression and function. The ELISA format allows for sensitive and specific quantification, making it a valuable tool in preclinical research and endocrine studies.