B antigen acquired by normal A1 red cells exposed to a patient's serum

  title={B antigen acquired by normal A1 red cells exposed to a patient's serum},
  author={Carla Stayboldt and Ann Rearden and Thomas A. Lane},
The authors report a patient with the acquired B antigen whose serum contained a factor capable of inducing the acquired B phenotype on normal A1 red cells in vitro. The patient's red cells were not, however, agglutinated by a monoclonal anti‐B. These findings and the abolition of the acquired B antigen by treatment of the patient's red cells with acetic anhydride support the deacetylation theory of the genesis of the acquired B antigen. 
Acquired B antigen associated with infection by bacillus cereus: in vivo and in vitro transformation of A1 red cells
In another patient with the acquired B antigen reported here, the phenomena observed are complementary to those described by Stayboldt et al, and some of the results were presented on the 17 th congress of the International Society of Blood Transfusion.
ABO(H) System
The ABO system was discovered in 1900 by Karl Landsteiner. Based on his assumption of two erythrocyte antigens, A and B, Landsteiner found it possible to classify human individuals into four blood
ABH blood group antigen expression, synthesis, and degradation in human colonic adenocarcinoma cell lines.
The colon cancer cell lines used in this study exhibit all of the ABH alterations previously described in colon cancer tissues and appear to be useful experimental models for studying the molecular events involved in cancer-associated ABH expression.
Association of ABO and Rh blood groups to HBV, HCV infections among blood donors in a blood bank of tertiary care teaching hospital in Southern India: A retrospective study
In this study conducted to determine the predominant blood group antigen and its association with HBV and HCV seroreactivity, there was no association between blood group antigens with these infections.
Effect and Association of ABO & Rh Incompatibility on Maternal Outcome
Background: Incompatibility affects those pregnancies in which maternal antibodies when cross the placental barrier and enters the fetal circulation, reacts and damage the fetal red cells, thus
Distribution of ABO blood groups and rhesus factor in Southwest Saudi Arabia.
The frequencies of ABO and Rh phenotypes in the southwest population of Saudi Arabia are similar to those reported in most areas of the Arabian Gulf region.
Incidence of ABO and Rh Incompatibility in the Punjabi Couples
Background: ABO & Rh are the major blood group systems from transfusion point of view and reflect the genetic distribution and characteristics of molecular database of different ethnic groups, races,
ABO and Rhesus ‘D’ blood type distribution in students admitted into Moshood Abiola Polytechnic, Abeokuta, Nigeria in 2006
The high percentage of blood group O (53.70%) in the new intakes population provides an advantage in terms of availability of blood for transfusion especially in emergencies.
The Frequency of ABO Blood Group among Male Inmates in a Typical Nigerian Prison
It is indicated that Blood group O+ had the highest frequency for inmates convicted for the various crimes, and blood type AB+ and AB- had the least frequency.


Immunological Aspects of the Acquired B Antigen
By agglutination kinetics using an immune anti‐B, the acquired B reactive structure was found to differ from that of a normal B, points out to the part played by one electrically charged chemical group.
Atypical Polyagglutination Associated with an Acquired B Antigen
The finding of an acquired B antigen, together with polyagglutination, in an elderly man led to studies indicating adsorption of bacterial material as the likely cause of both of these red blood cell
Pseudo B: An Acquired Group Antigen
Evidence is presented for the existence of an additional type of weak B antigen developing de novo.
A Weak B Antigen, Probably Acquired
W"at'vPva -rov His cells were not agglutinrated, and the reactions varied from + to + + + in strength and were inhibited by gronp. ",Case 29.
Acquisition of a B-Like Antigen by Red Blood Cells
The biochemical influences at work in wound healing are quoted to indicate the complicated nature of such problems, and it is suggested that if research is to be undertaken along these lines in a clinical unit it is no good entrusting it to a clinician who dabbles in biochemistry.
Acquired B Antigen Disappearance by in vitvo Acetylation Associated with A1 Activity Restoration
Abstract. The chemical acetylation of RBC bearing the acquired B antigen led to the disappearance of the agglutinability by anti‐B and restored the A1 specificity. The same results are obtained using
Concomitant T‐ and Tk‐Activation Associated with Acquired‐B Antigens
Results of tests using purified Arachis hypogaea and Bandeiraea simplicifolia lectins, and red blood cells either T, Tk or both T and Tk‐activated by bacterial enzymes in vitro, suggest that the acquired‐B phenomenon, T‐activation and T k‐activation result from the action of different bacterial enzymes.
Erythrocyte Sensitization by Blood Group-Specific Bacterial Antigens
Red cell sensitization with B active E. coli O86 substances was achieved in vivo in a minority of severely diseased infants and in germ-free and ordinary chicks which were in tourniquet shock after treatment with cathartics.
The enzymatic degradation of purified blood group substances represents an increasingly fruitful approach to the elucidation of their immunochemical specificity, and progress to date has recently
Effect of Modification of Amino Groups of Human Erythrocytes on M, N and NVg Blood Group Specificities
The results suggest that the difference between M and N receptors is not determined by the structure of oligosaccharide chains and only slightly decreased agglutinability by human anti‐H, anti‐A and anti‐I sera.