[The Results of ABO/RhD Blood Group and Comparative Analysis Detected by Two Methods in Infants Younger than 6 Months].

Objective: To detect the ABO / RhD blood type of infants younger than 6 months in different gestational age and month old with automatic microcolumn glass sphere and tube method, and compare the result of the two methods.

Methods: The data of 896 samples of infants younger than 6 months from January 2018 to February 2019 was collected. The two methods were used to detect ABO/RhD blood type in all samples and compare the detection rate of ABO/RhD antigen and ABO reverse typing and agglutination intensity of the two methods.

[Comparison of Weak ABO Antigen and Normal ABO Antigen in Patients with Acute Leukemia].

Objective: To compare the differences between weak ABO antigen patients and normal ABO antigen patients with acute leukemia, and to explore the clinical significance of weak ABO antigen in acute leukemia.

Methods: The ABO blood group was detected in 110 newly diagnosed acute leukemia patients(including 68 cases of AML and 42 cases of ALL) and 68 normal controls. Then the leukemia subtype, age, sex, laboratory test, risk status of leukemia patients, and DNA methylation of ABO promoter were compared between patients with weak and normal ABO antigen.