Used for the quantitative measurement of human thrombopoietin (TPO) levels in serum, plasma, and other biological fluids. This ELISA kit is widely applied in clinical research and laboratory settings to study thrombopoiesis, bone marrow function, and platelet disorders such as thrombocytopenia and myeloproliferative diseases. It enables researchers to assess TPO concentration in relation to immune responses, liver disease, and hematopoietic stem cell regulation. The assay supports early diagnosis, disease monitoring, and evaluation of therapeutic efficacy in blood-related conditions.