DNA typing of alleles of the highly polymorphic HLA-DQBI gene was performed by Pyrosequencing using purified DNA from the 11th International Histocompatibility Workshop human cell lines and samples from the Children's Hospital of Pittsburgh registry of diabetics and their first-degree relatives. Pyrosequencing was optimized for genotyping exon 2 of the HLA-DQB1 gene, but the procedure should be...

Objective. The objective of this study was to systematically evaluate the association between vitiligo and human leukocyte antigen- (HLA-) A. Methods. PubMed, Embase, Web of Science, Chinese National Knowledge Infrastructure, and reference lists were searched for relevant original articles. Results. Nineteen case-control studies comprising 3042 patients and 5614 controls were included, in which...

After in vitro mixed lymphocyte culture, cytotoxic lymphocytes develop which have specificity for components of the main histocompatibility complex (MHC) 1 of the stimulating lymphocyte population (1, 2). The effector cells were found to be directed mainly against class I histocompatibility antigens, that is, the H2-K and H2D antigens in the mouse (3), and the HLA-A or HLA-B antigens in man (4)...

BACKGROUND Two European centres report on human leukocyte antigen (HLA) typing of preimplantation embryos for haematopoietic stem cell (HSC) transplantation: 'UZ Brussel' in Brussels and 'Genoma' in Rome. Both centres have 6 years' experience with technical and clinical aspects of this type of genetic analysis on single blastomeres. METHODS Both centres apply a similar technique for preimplan...

The human leukocyte antigen (HLA) class I and class II loci are the most polymorphic genes in the human genome. Hematopoietic stem cell transplantation requires allele-level HLA typing at multiple loci to select the best matched unrelated donors for recipient patients. In current methods for HLA typing, both alleles of a heterozygote are amplified and typed or sequenced simultaneously, often ma...

PURPOSE To evaluate a multi-group-specific sequence-based typing (SBT) method for resolving ambiguous results from human leukocyte antigen (HLA) genotyping. MATERIALS AND METHODS A total of 50 samples that showed ambiguous genotypes for at least two HLA loci from HLA-A, -B, -C and -DRB1 by the conventional SBT assay were evaluated using a new SBT test, the AVITA plus assay. The most likely HL...

Background Human leukocyte antigen (HLA) gene is a highly polymorphic region. HLA typing is required to match patients and donors for transplantation; therefore, development of HLA registries is necessary for finding HLA match donors. HLA system is highly informative, and numerous studies have been conducted on HLA allele distribution in different populations. Methods In this study, 100 unrel...

Corneas used for transplantation are typically obtained from donors up to 48 hr post mortem. By this time, standard HLA typing usually is impossible because of the lack of viable lymphocytes in spleen and peripheral blood. To increase the number of HLA-typed corneas, we developed a method in which the retinal pigment epithelial (RPE) cells of the donor eye are isolated, cultured in the presence...

The frequencies of HLA-antigens in A, B, C and DR loci were examined in 34 Japanese patients with acromegaly. The frequency of DRW9 was slightly higher and the frequency of DR4 was slightly, but not significantly, lower than the controls. Five HLA loci (A, B, C and D/DR loci) have been found and other new loci are expected to be disclosed. Since the associations of HLA with diseases began being...

Abstract Background and Aims The human leukocyte antigens (HLA) are the most diverse polymorphic genes in genome matching them is of vital importance for maximising survival kidney transplants. Maltese archipelago consists three inhabited islands Mediterranean Sea, with a total population just over half million people. HLA polymorphisms Malta have never been described. aim this study was to inv...