منابع مشابه
Atypical immunologic tolerance in a human blood group chimera.
A PERMANENT DOUBLE POPULATION of red blood cells may result from interfetal transplantation of hemopoietic tissue between noniden-tical human' or bovine2 twins. The condition was originally referred to as " chimerism. " If the term, in its application to humans, is restricted to the equivalent of the bovine twins, possibly 14 additional cases have been reported .3#{176} In all the relevant case...
متن کاملHuman Blood Group Glycosyltransferases
An N-acetylgalactosaminyltransferase, which converts blood group 0 red blood cells to A cells, was purified to homogeneity from plasma of blood group A, subjects. The enzyme was adsorbed on Sepharose QB, and after washing out the impurities, the enzyme was eluted with UDP. This procedure resulted in a 70,000to lOO,OOO-fold increase in specific activity with recovery of about 80%. Further purifi...
متن کاملA Dispermic Chimera with Mixed Field Blood Group B and Mosaic 46,XY/47,XYY Karyotype
Chimerism in humans is a rare phenomenon often initially identified in the resolution of an ABO blood type discrepancy. We report a dispermic chimera who presented with mixed field in his B antigen typing that might have been mistaken for the B3 subtype. The propositus is a healthy Korean male blood donor. Neither his clinical history nor initial molecular investigation of his ABO gene explaine...
متن کاملChimera or not chimera?
The article entitled " Evidence for Cardiomyocyte Repopulation by Extracardiac Progenitors in Transplanted Human Hearts " by Laflamme et al, 1 published in Circulation Research, confirms our early observations 2 that cardiac chimerism occurs after transplanta-tion of a female heart in a male patient. These results are also in agreement with the detection of chimerism in multiple organs after bo...
متن کاملA New Human Duffy Blood Group Specificity
The Duffy blood group system of human erythrocytes comprises a membrane glycoprotein recently characterized by immunoprecipitation techniques (1) . It is a polymorphic system that includes determinants for five alloantigens, two of which are Mendelian alleles (Fya and Fyb) (2, 3) . A null genotype, designated Fy(ab-) (4), lacks the expression of both Fya and Fyb, and is inherited as a third all...
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ژورنال
عنوان ژورنال: BMJ
سال: 1953
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.4827.81