Erythrophagocytosis++ test was performed in 45 pregnant Rh-negative women together with routine anti-Rh antibodies assay with indirect antiglobulin test and their concentration determined in an autoanalyser. It was found that the degree of ++phagocytosis of the standard erythrocytes immunized with maternal anti-Rh antibodies by the monocytes from healthy subjects is an important predictive factor enabling to foresee a severity of hemolytic disease in newborn babies. ++Phagocytosis over 50% predicts a severe course of the disease whereas under 20%--a mild form of the serologic conflict.
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Asian J Transfus Sci
December 2022
Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran.
Background: Thalassemia is one of the most common congenital hemoglobinopathies globally. Regular red blood cell (RBC) transfusion is of paramount importance in the treatment of thalassemia patients. However, this practice increases the risk of alloimmunization.
View Article and Find Full Text PDFPediatrics
June 2024
Obstetric and Neonatal Operations.
Background And Objectives: Despite advances in the prevention of rhesus (Rh)(D) alloimmunization, alloantibodies to Rh(D) and non-Rh(D) red blood cell antigens continue to be detected in ∼4% of US pregnancies and can result in hemolytic disease of the fetus and newborn (HDFN). Recent reports on HDFN lack granularity and are unable to provide antibody-specific outcomes. The objective of this study was to calculate the frequency of alloimmunization in our large hospital system and summarize the outcomes based on antibody specificity, titer, and other clinical factors.
View Article and Find Full Text PDFTransfus Med
June 2024
Rotary TTK Blood Centre, Bangalore Medical Services Trust, Bangalore, India.
Background: The Rh system is an extremely important RBC antigen system with over 50 antigens, 5 of which (D, C, E, c and e) are considered most clinically significant. The rare Rhnull phenotype can result from mutations in the RHD and RHCE genes or the RHAG gene that affects their expression. This is a case report of the second type.
View Article and Find Full Text PDFIran J Parasitol
January 2023
Guangxi Key Laboratory of Brain and Cognitive Neuroscience, College of Basic Medicine, Guilin Medical University, Guilin, P.R. China.
Background: with widespread distribution infects over one third of human populations in the world and can cause serious life-threatening diseases especially for the immunodeficient patients in acute toxoplasmosis. As the clinical pharmaceutical drugs with severe side effects for treatment and non-ideal extant vaccines for prevention, more work starves to be done for keeping advantages in the athletics.
Methods: Aluminum adjuvant and hybrid formaldehyde-killed tachyzoites of RH and GT1 isolates were prepared to intramuscularly immunize BALB/c mice for five times at 0, 3, 7, 14 and 21 days post first injection.
Transfus Apher Sci
December 2023
Hemocentro Unicamp, Campinas, SP, Brazil. Electronic address:
Background: RBC alloimmunization remains a significant problem for many patients with SCD. To reduce alloimmunization some strategies have been implemented to provide limited or extended antigen matched RBC transfusions to patients with SCD who need chronic transfusion support. The aim of this study was to evaluate the effects of prophylactic RBC transfusion with extended antigen matching on alloimmunization in patients with SCD.
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