Used in research settings to quantitatively measure levels of human pepsinogen II in biological samples such as serum or plasma. This assay helps in studying gastric function and assessing conditions related to the stomach lining, including chronic gastritis, atrophic gastritis, and gastric cancer risk. The kit is particularly useful in clinical research for evaluating gastric biomarkers and monitoring changes in gastric mucosal status. It enables high-throughput analysis with reliable sensitivity and specificity, supporting large-scale epidemiological studies and diagnostic development.