Used in biomedical research to quantify levels of alpha-1 antitrypsin (AAT) in rat samples, particularly in serum, plasma, or tissue homogenates. This ELISA kit is essential for studying inflammatory processes, lung and liver diseases, and immune responses in rodent models. It enables researchers to assess AAT concentration changes in experimental conditions such as chronic obstructive pulmonary disease (COPD), emphysema, or liver injury. The assay supports high sensitivity and specificity, allowing accurate measurement of AAT for preclinical studies, drug development, and evaluation of therapeutic interventions targeting protease-antiprotease imbalance.