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Results for “BLOOD GROUPS”

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At least 19 recordsLinked to original sources
PubMed1990

Associations between blood groups, blood protein polymorphisms and breeding values for production traits in Swedish Red and White Dairy bulls.

The relationships of nine blood group systems and two blood protein polymorphisms with breeding values for several production traits were examined in dairy cattle of the Swedish Red and White (SRB) breed. The material consisted of 2212 bulls; the bulls were performance tested for growth rate and their breeding values for milk yield, fat and protein content in milk were estimated from progeny tests. The direct effect of marker alleles or marker phenotypes was analysed in a multiple regression model. Several significant associations were found; many supported earlier findings. However, the contribution of the markers to the total variation of the breeding values was very small. Linkage between marker loci and production loci was studied in offspring from heterozygous sires by estimating the interactions between sire and marker alle using a model eliminating the direct effects of sire and marker alle. There were strong indications of linkage between some marker loci (e.g. B, J and Am-1 loci) and loci with large effects on production traits.

Alleles↗
PubMed1997

[Immunological effects of erythrocyte and leukocyte transfusion. Work Group Blood Group Serology of the Medical Advisory Commission of the College for Blood Transfusion of the Netherlands Red Cross].

Immunological consequences of blood transfusion are less well-known than infectious complications although they occur more frequently. In many cases the effects in individual patients are hardly visible although fatal transfusion reactions may occur: Transfusion of red cells may induce acute or delayed haemolytic transfusion reactions. Transfusion of leukocytes may suppress the function of the immune system of the recipient (with consequences for immune tolerance in transplant patients, cancer surveillance and the occurrence of postoperative infections) but also may induce graft versus host disease.

Erythrocyte Transfusion↗
PubMed2004

Importance of blood groups and blood group antibodies in companion animals.

Dogs, cats, birds, and ferrets are popular companion animals. Because these pets are considered by many to be family members, they are provided high-quality veterinary medical care, including blood transfusions. This article reviews the current status of blood groups in dogs, cats, birds, and ferrets and discusses the impact of blood groups on veterinary transfusion medicine. One blood group with 3 types has been described in the cat, whereas multiple blood groups have been described in the dog. Only rudimentary knowledge exists regarding pet bird blood groups, and, to date, the ferret appears to be unique because no blood groups have been described. Antibodies against blood group antigens also play a role in animal blood transfusions. Cats have naturally occurring alloantibodies; however, dogs do not appear to have clinically significant naturally occurring alloantibodies. Understanding the issues related to blood groups and blood group antibodies in companion animals will also benefit those using these species as research models for human diseases.

Animals↗
PubMed1984

Recurrent bacteriuria and primary biliary cirrhosis: ABO blood group, P1 blood group, and secretor status.

Patients with primary biliary cirrhosis have an abnormally high incidence of urinary tract infection (35%). Susceptibility to urinary infection and other infectious diseases has been linked with certain blood group antigens and secretor status. We have therefore studied these characteristics in patients with primary biliary cirrhosis. We were unable to show any abnormal distribution in blood groups or secretor status in patients with primary biliary cirrhosis (compared with a normal population) which might reflect their predisposition to urinary infection. The distribution of blood groups and secretor status in patients with primary biliary cirrhosis with a history of urinary infections was not significantly different from patients without such a history. Escherichia coli strains isolated from patients with primary biliary cirrhosis did not bind in any greater numbers to the uroepithelial cells of primary biliary cirrhosis patients than to the cells of a normal healthy control. We therefore conclude that blood group distribution, abnormal secretor status, and epithelial cell type are not important factors in the predisposition of primary biliary cirrhosis patients to urinary infections.

ABO Blood-Group System↗
PubMed2003

Molecular modeling of glycosyltransferases involved in the biosynthesis of blood group A, blood group B, Forssman, and iGb3 antigens and their interaction with substrates.

A terminal alpha1-3 linked Gal or GalNAc sugar residue is the common structure found in several oligosaccharide antigens, such as blood groups A and B, the xeno-antigen, the Forssman antigen, and the isogloboside 3 (iGb3) glycolipid. The enzymes involved in the addition of this residue display strong amino acid sequence similarities, suggesting a common fold. From a recently solved crystal structure of the bovine alpha3-galactosyltransferase complexed with UDP, homology modeling methods were used to build the four other enzymes of this family in their locked conformation. Nucleotide-sugars, the Mn2+ ion, and oligosaccharide acceptors were docked in the models. Nine different amino acid regions are involved in the substrate binding sites. After geometry optimization of the complexes and analysis of the predicted structures, the basis of the specificities can be rationalized. In the nucleotide-sugar binding site, the specificity between Gal or GalNAc transferase activity is due to the relative size of two clue amino acids. In the acceptor site, the presence of up to three tryptophan residues define the complexity of the oligosaccharide that can be specifically recognized. The modeling study helps in rationalizing the crystallographic data obtained in this family and provides insights on the basis of substrate and donor recognition.

ABO Blood-Group System↗
PubMed2007

Effect of von Willebrand factor Y/C1584 on in vivo protein level and function and interaction with ABO blood group.

Blood group O and the cysteine allele of the Y/C1584 change in von Willebrand factor (VWF) are enriched in type 1 VWD, but neither causes disease. We investigated the effect of C1584, alone and in combination with the ABO blood group, on the level and properties of plasma VWF. A cohort of 5052 blood donors was recruited: 50 donors were heterozygous for Y/C1584 and 5002 were homozygous for Y/Y1584. Mean VWF antigen (VWF:Ag) for heterozygotes (82 +/- 35 IUdL(-1)) was significantly lower than for homozygotes (111 +/- 37 IUdL(-1)) (P < .001). Foreach ABO blood group, VWF:Ag was decreased among Y/C1584 heterozygotes compared with Y/Y1584 homozygotes; a larger decrease was observed for group O. Among donors with VWF:Ag levels of 50 IUdL(-1) or lower, Y/C1584 heterozygosity was markedly enriched (18%) compared with the entire cohort (1.5%). Blood group O was enriched to a lesser extent (2.4%), but Y/C1584 in conjunction with group O was strikingly enriched (34.8%). VWF collagen binding activity (VWF:CB) and ristocetin cofactor activity (VWF:RCo) were significantly lower for Y/C1584 heterozygotes than for Y/Y1584 homozygotes, and a qualitative difference in Y/C1584 plasma VWF multimer profile was observed compared with that for Y/Y1584 VWF. The data support a multifactorial basis for low VWF levels in some individuals.

ABO Blood-Group System↗