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Article | 17-February-2021

Prevalence of DEL phenotype in D– blood donors in India

two homologous RH genes: RHD and RHCE. The high degree of homology and opposite orientation of the two genes leads to the production of numerous Rh variants.2 D variants are usually classified as weak D, partial D, and DEL. Unlike weak D and partial D, DEL represents a weakened form of D that cannot be detected by conventional serology and requires the use of an adsorption-elution method; therefore, it is DEL (D-elute).3,4 The first examples of DEL+ RBCs were reported in the early 1980s when blood

R. Chaudhary, S. Verma, A. Verma

Immunohematology, Volume 36 , ISSUE 4, 133–136

case-report | 25-June-2021

B subgroup detection in a small hospital transfusion service

result between RBC and serum grouping tests. Subgroups of B are difficult to classify and include B3, Bx/Bweak (previously known as Bx), Bweak (previously known as Bm), and Bel phenotypes, according to the International Society of Blood Transfusion (ISBT).4,5 The B subgroups can be classified by their agglutination strength with anti-B, anti-A,B, and anti-H; the presence or absence of anti-B in the serum; the presence of B substance in saliva; the results of adsorption-elution testing; and molecular

E. Elardo, N. Elbadri, C. Sanchez, V. Powell, M. Smaris, Y. Li, J. Jacobson, T. Hilbert, T. Hamilton, D.W. Wu

Immunohematology, Volume 37 , ISSUE 2, 89–94

Article | 15-February-2021

Heat elution: a modification of the Landsteiner-Miller method

C. Dean-El, N. Quraishy

Immunohematology, Volume 35 , ISSUE 2, 45–47

Case report | 27-December-2020

A case report: unusual Gerbich antibody in a patient with sickle cell anemia

A patient whose red blood cells (RBCs) typed as Ge:2,3 produced an alloantibody to a high-frequency antigen in the Gerbich system. This antibody was shown to be nonreactive with Ge: -2, -3 RBCs using adsorption-elution studies. A monocyte monolayer assay (MMA) suggested that transfusion of Ge:2,3 RBCs to this patient would have reduced in vivo survival.

Michael I. Gorman, Bobbye Woody

Immunohematology, Volume 5 , ISSUE 2, 55–57

Article | 06-December-2020

Expression of B and H antigens on red cells from a group Bweak individual studied by serologic and scanning electron microscopic techniques

The proposita was classified as Bel, By, or Bm, Le(b+) by routine blood grouping and by adsorption/elution studies using anti-A and -B hyperimmune pregnancy sera. Red cells from the proposita adsorbed as much anti-B from the hyperimmune sera as did red cells from normal B individuals, but adsorbed less anti-A,B (group O serum). Saliva contained H, but not B, soluble substance. Red cells from the proposita and a normal B donor were sensitized with monoclonal A and B blood group antibodies

Hans Erik Heier, Leif Kornstad, Ellen Namork, Peder Østgard, Randi Sandin

Immunohematology, Volume 8 , ISSUE 4, 94–99

Case report | 01-December-2019

Serologic and molecular characterization of D variants in Brazilians: impact for typing and transfusion strategy

%), 13 weak D type 3 (7.8%), and 2 weak D type 5 (1.2%) alleles were found. Among the partial D samples, 49 type 4.0 weak partial D (36%), 9 DAR (6.6%), 24 DFR (17.6%), 6 DBT (4.4%), 1 DHMi (0.73%), 26 DVI (19%), 14 DVa (10.3%), 5 DIVb (3.7%), and 2 DVII (1.5%) were observed. Two samples identified as DEL by adsorption-elution were characterized by molecular analyses as RHD(IVS5–38DEL4) and one sample was characterized as RHD(K409K). One sample was characterized as DHAR, a CE variant positive

Débora Castilho Credidio, Jordão Pellegrino Jr., Lilian Castilho

Immunohematology, Volume 27 , ISSUE 1, 6–11

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