background: transfusion is the mainstay treatment of patients with thalassemia major and occasionally in thalassemia intermediate. alloimmunization is an unwanted side effect of blood transfusion. the present study intended to determine the frequency of alloimmunization in patients with β- thalassemia major and thalassemia intermediate in southwest iran. patients and methods: this was a cross-s...

In 1,814 patients with sickle cell disease who had been transfused, the overall rate of alloimmunization to erythrocyte antigens was 18.6%. The rate of alloimmunization in this group appears to be an explicit function of the number of transfusions received because it increases exponentially with increasing numbers of transfusions. Alloimmunization usually occurred with less than 15 transfusions...

Up to 90% of patients with a myelodysplastic syndrome require red blood cell transfusion; nevertheless, comprehensive data on red cell alloimmunization in such patients are limited. This study evaluates the incidence and clinical impact of red cell alloimmunization in a large cohort of patients with myelodysplastic syndrome registered in the statewide South Australian-MDS registry. The median a...

BACKGROUND Red blood cell (RBC) alloimmunization is a major immunologic risk of transfusion. However, RBC storage facilitates white blood cell (WBC) apoptosis and apoptotic cells have immunomodulatory properties. We investigated the behavior of WBCs, and apoptosis in particular, in RBC units during storage and then studied the impact of WBC apoptosis on the modulation of posttransfusion alloimm...

Background: Thalassemia is one of the most common genetic disorder hemoglobin synthesis in Jammu region. Although RBC transfusion life saving for these patients, it may be associated with some complications like alloimmunization. Thus, alloimmunization against red blood cell antigens increases need and can significantly complicate therapy. Therefore, screening unexpected antibodies should a par...

Background: Alloimmunization is a known complication following repeated red blood cell transfusions. However, the associated factors of RBC alloimmunization are different among recipient groups. This study aimed to determine solid cancer patients in Hospital USM. Material and Methods: cross-sectional involved 322 adult screened for alloantibodies our centre from October 2016 until February 2019...

HLA alloimmunization is a major cause of the platelet refractory state. The stimulus for HLA alloimmunization is believed to derive from incompatibility between the recipient's lymphocytes and the passenger donor lymphocytes contained in transfused red cells or platelet concentrates. Two techniques to prevent post-transfusion HLA alloimmunization include filtration, which physically removes the...

In the context of transfusion medicine, alloimmunization most often refers to the development of antibodies to non-ABO red blood cell (RBC) antigens following pregnancy, transfusion, or transplantation. The development of RBC alloantibodies can have important clinical consequences, particularly in patients who require chronic transfusions. It has been suggested that alloimmunization is more com...

The goal of the present work was to identify the candidate genetic markers predictive of alloimmunization in sickle cell disease (SCD). Red blood cell (RBC) transfusion is indicated for acute treatment, prevention, and abrogation of some complications of SCD. A well-known consequence of multiple RBC transfusions is alloimmunization. Given that a subset of SCD patients develop multiple RBC allo-...

The incidence and characteristics of HLA alloimmunization following transfusions of leukocyte concentrates as a source of enzyme replacement were determined in male patients with Hunter's syndrome. Five patients were given leukocyte concentrates from HLA matched donors (Group I) and another five patients received leukocyte concentrates from non-HLA matched donors (Group II). No other blood prod...