The Lactate Dehydrogenase (LDH) Activity Assay Kit is widely used in biomedical research to measure LDH activity in various biological samples. It is commonly applied in cytotoxicity assays to evaluate cell viability and membrane integrity, as LDH is released into the culture medium upon cell damage. This kit is also utilized in clinical diagnostics to assess tissue damage, particularly in conditions like myocardial infarction, liver disease, and hemolysis. Additionally, it serves as a tool in cancer research to study metabolic changes in tumor cells, as LDH plays a key role in anaerobic glycolysis. Its simplicity and sensitivity make it a valuable tool for both research and diagnostic purposes.