Identification of Plasma Biomarkers for Early Diagnosis of Transplant-associated Thrombotic Microangiopathy

The goal of this clinical trial is to learn about plasma biomarkers of diagnosed transplant-associated thrombotic microangiopathy (TA-TMA) in patients undergoing transplantation. The main questions it aims to answer are: whether there are molecules that can accurately diagnose and predict TA-TMA; whether the current biomarkers related to TA-TMA can well predict the occurrence and survival of TA-TMA in adult patients with malignant hematopoietic diseases, for example, acute leukemia. Participants will receive laboratory tests of peripheral blood and urine specimens related to TA-TMA at regular times after transplantation.