Used for quantitative measurement of lactate dehydrogenase (LDH) activity in rat biological samples such as serum, plasma, cell lysates, or tissue homogenates. This ELISA kit is commonly applied in research settings to assess cell damage, cytotoxicity, or tissue injury, especially in studies related to liver toxicity, myocardial infarction, muscle degeneration, or immune responses. The assay helps monitor the release of LDH, an enzyme marker for cell membrane integrity, allowing researchers to evaluate the extent of cell death or stress in experimental models involving rats. It is widely used in pharmaceutical testing, toxicology studies, and biomedical research.