Used in biomedical research to measure angiotensin-converting enzyme (ACE) levels in rat samples, this ELISA kit enables accurate quantification of ACE activity in studies related to cardiovascular function, hypertension, and renal disease. It is widely applied in preclinical studies to evaluate the effects of drugs or experimental treatments on the renin-angiotensin system. Researchers use it to assess changes in ACE expression in response to genetic, pharmacological, or physiological interventions in rat models. The assay is essential for investigating mechanisms of heart failure, vascular remodeling, and the efficacy of ACE inhibitors in animal models.