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Report | 26-October-2019

Comparative evaluation of gel column agglutination and erythrocyte magnetized technology for red blood cell alloantibody titration

Antibody titration is traditionally performed using a conventional test tube (CTT) method, which is subjected to interlaboratory variations because of a lack of standardization and reproducibility. The aim of this study is to compare newer methods such as gel column technology (GCT) and erythrocyte magnetized technology (EMT) for antibody titration in terms of accuracy and precision. Patient serum samples that contained immunoglobulin G (IgG) red blood cell (RBC) alloantibodies of a single

Anju Dubey, Atul Sonker, Rajendra K. Chaudhary

Immunohematology, Volume 31 , ISSUE 1, 1–6

Article | 14-December-2020

Phosphatidylinositol-linked red blood cell membrane proteins and blood group antigens

A new class of membrane proteins has recently been described. Unlike integral membrane proteins, which traverse the membrane with one or more hydrophobic peptide domains, the peptide domains of these more newly described proteins are entirely extracellular and are anchored to the cell membrane via a phosphatidylinositol-glycan (GPI) anchor. Erythrocyte membrane proteins of this class include proteins with diverse functions; several, however, are complement regulatory proteins. Moreover, it is

Marilyn J. Telen

Immunohematology, Volume 7 , ISSUE 3, 65–72

original-report | 25-June-2021

Effect of cryopreservation on a rare McLeod donor red blood cell concentrate

T.R. Turner, G. Clarke, G.A. Denomme, R. Skeate, J.P. Acker

Immunohematology, Volume 37 , ISSUE 2, 78–83

Short Communication | 01-December-2019

Unusual erythrocyte split chimerism in pregnancy after allogeneic stem cell transplantation

M.L. Barjas-Castro, A.C. Vigoritto, F.A. Moretto, V. Castro

Immunohematology, Volume 30 , ISSUE 3, 135–136

Article | 22-January-2021

The P1PK blood group system: revisited and resolved

L. Stenfelt, Å. Hellberg, J.S. Westman, M.L. Olsson

Immunohematology, Volume 36 , ISSUE 3, 99–103

Article | 26-October-2019

HEA BeadChipTM technology in immunohematology

Classic methods to determine human red blood cell (RBC) antigens are based on serologic testing. Thanks to increased knowledge of the molecular basis associated with many blood group antigens, it is currently possible to predict their presence or absence on the red cell membrane. Several molecular techniques have been developed to detect the most important allelic variations attributable to single nucleotide polymorphisms. The human erythrocyte antigen (HEA) BeadChip™ system manufactured

Cinzia Paccapelo, Francesca Truglio, Maria Antonietta Villa, Nicoletta Revelli, Maurizio Marconi

Immunohematology, Volume 31 , ISSUE 2, 81–90

Article | 16-October-2019

Adsorption of cold agglutinins with rabbit red blood cells

Adam Cobaugh

Immunohematology, Volume 34 , ISSUE 2, 46–48

Review | 26-October-2019

Kell and Kx blood group systems

The Kell and Kx blood group systems are expressed as covalently linked molecules on red blood cells (RBCs). The Kell blood group system is very polymorphic, with 35 antigens assigned to the system. The expression of Kell glycoprotein on RBCs is not critical to the erythrocyte function. However, the expression of Kx is critical to normal morphology, and null mutations are associated with the McLeod neuroacanthocytosis syndrome. The immunogenicity of the K antigen is second only to the D antigen

Gregory A. Denomme

Immunohematology, Volume 31 , ISSUE 1, 14–19

Article | 06-December-2020

Six monoclonal antibodies to the CD59 antigen

CD59 defines an N-glycosylated glycoprotein expressed on various hemopoietic cells. It is anchored to the cell membrane by a glycosylpbospbatidylinositol linkage and restricts the action of homologous complement. Monoclonal antibodies 2/24, 182, Fib75.1, BRIC 229, MEM-43, and YTH 53.1 were compared by immunoblotting against normal erythrocyte ghosts. All six stained a diffuse band of 17-25 kDa, but BRIC 229 also detected bands at 35 and 80 kDa. 2/24 reacts with all red blood cells (RBCs) tested

Jennifer A. Bryant, Anne Fletcher, Fang Fang Yuan

Immunohematology, Volume 9 , ISSUE 3, 68–73

Article | 03-November-2020

Use of the MAIEA assay to demonstrate that Fy3 is on the same glycoprotein as Fy6, Fya, and Fyb

The monoclonal-antibody immobilization of erythrocyte antigens (MAIEA) assay is a technique that detects trimolecular complexes formed by a human antibody and a mouse monoclonal antibody with specific red cell epitopes. This enzyme-linked immunoadsorbent assay test gives a positive reaction when two different epitopes on the same membrane protein are separately recognized by human and mouse antibodies. In this study, the MAIEA test was used to determine if the Duffy system antigen Fy3 is on the

Jaw-Lin Tzeng, Roger Dodd, Delores Mallory

Immunohematology, Volume 14 , ISSUE 3, 113–116

Research paper | 06-February-2018

Effects of Cornus mas L. and Morus rubra L. extracts on penicillin-induced epileptiform activity: an electrophysiological and biochemical study#

. rubra. This dose decreased the spike frequencies of convulsions while amplitude wasn’t changed by both substances. In erythrocyte studies, there were significant differences regarding nitric oxide in the control, sham and penicillin groups. There were significant differences regarding malondialdehyde in all groups. In the plasma, there were significant differences among groups regarding xanthine oxidase in the penicillin-C. mas and penicillin-M. rubra groups. There were differences regarding

Filiz Tubaş, Sedat Per, Abdulkadir Taşdemir, Ayşe Kaçar Bayram, Mehmet Yıldırım, Aydın Uzun, Recep Saraymen, Hakan Gümüş, Ferhan Elmalı, Hüseyin Per

Acta Neurobiologiae Experimentalis, Volume 77 , ISSUE 1, 45–56

Article | 30-November-2020

Misidentification of anti-Vel due to inappropriate use of prewarming and adsorption techniques

Two units of red blood cells (RBCs) were ordered for a 44-year-old Caucasian woman with renal failure and cancer. Pretransfnsion testing performed at the regional reference laboratory had revealed the presence of an antibody reactive with all cells at the indirect antiglobulin test (IAT) but apparently nonreactive by a prewarmed IAT. The patient’s RBCs were direct antiglobulin test negative. Adsorption of the serum with rabbit erythrocyte stroma or with allogeneic RBCs at 4°C reduced

Jill Storry, Delores Mallory

Immunohematology, Volume 10 , ISSUE 3, 83–86

Report | 01-December-2019

SC*994C>T causes the Scnull phenotype in Pacific Islanders and successful transfusion of Sc3+ blood to a patient with anti-Sc3  

Antigens in the SC blood group system are expressed by the human erythrocyte membrane-associated protein (ERMAP). Two molecular bases have been reported for the Scnull phenotype: SC*307del2 and SC*994C>T. We report our investigation of the molecular background of five Scnull individuals from the Pacific Islands and describe the successful transfusion of Sc3+ blood to a patient with anti-Sc3 in her plasma. SC (ERMAP) exons 2, 3, and 12 and their flanking intronic regions were analyzed. The SC

Marion E. Reid, Kim Hue-Roye, Randall W. Velliquette, Kathleen Larimore, Sue Moscarelli, Nicolas Ohswaldt, Christine Lomas-Francis

Immunohematology, Volume 29 , ISSUE 2, 69–72

Article | 17-February-2021

Concordance of two polymerase chain reaction–based blood group genotyping platforms for patients with sickle cell disease

rare donor registries is required to obtain high-prevalence antigen-negative blood for transfusion. Several studies have compared molecular genotyping platforms with serologic phenotyping in patients and donors, with excellent concordance rates.16,19–21 Two PCR-based molecular genotyping platforms commercially available in the United States for blood group genotyping are the human erythrocyte antigen (HEA) PreciseType (formerly HEA BeadChip; Immucor, Norcross, GA) and ID CORE XT (Progenika-Grifols

C.A. Sheppard, N.L. Bolen, G. Meny, M. Kalvelage, G. Ochoa-Garay

Immunohematology, Volume 36 , ISSUE 4, 123–128

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