blood samples (291857) from 24 provinces of iran were tested for abo and rh groups. the rh complexes as well as kell, duffy, kidd, lutheran, kp and xg blood groups were tested only on a part of the material from tehran. results show a great deal of heterogeneity for abo and rh groups in various provinces of iran. the calculated gene frequencies are compared with those of other investigations in...

The evolution of human blood groups, without doubt, has a history as old as man himself. There are at least three hypotheses about the emergence and mutation of human blood groups. Global distribution pattern of blood groups depends on various environmental factors, such as disease, climate, altitude, humidity etc. In this survey, the collection of main blood groups ABO and Rh, along with some ...

Recognition and application of blood group differences on human red cells permitted the development of safe procedures for blood transfusion. Blood group antigens are markers on surface-exposed red cell proteins or the sugar moiety of glycoproteins or glycolipids. Apart from their presumed biological function, some antigens have been identified as receptors for host/parasite interactions. Thus,...

The aim of this research is to search for the distribution of blood groups in all the regions of Morocco. This study, done for the first time, aimed to provide the frequency of the Rhesus system and Kell (K) in more than 55000 blood donors from nine different regions around the country. In addition, the frequency of the Cellano, Duffy, Kidd, and MNS blood antigens was searched for 500 blood don...

Haemolytic disease of the foetus and newborn (HDFN) is a condition in which the lifespan of an infant’s red blood cells (RBCs) is shortened by the action of specific maternal immunoglobulin G (IgG) antibody. Rhesus (Rh)D haemolytic disease of the newborn is a prototype of maternal isoimmunization and foetal haemolytic disease. Although rare, the other blood group antigens capable of causing all...

OBJECTIVES To determine the frequency of various blood group antibodies responsible for haemolytic disease of the new born (HDN). DESIGN A prospective study of all neonates and still born foetuses suspected to have haemolytic disease of the new born and their mothers. SUBJECTS Neonates suspected to have HDN as per study criteria along with their mothers and mothers of still born foetuses wi...

Phenotypic analysis of hematopoietic stem and progenitor cells has been an invaluable tool in defining the biology of stem cell populations. We use here flow cytometry to examine the expression of human erythroid-specific surface markers during the maturation of early committed erythroid cells derived from cord blood in vitro. The temporal order of the expression of erythroid specific markers w...