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Results for “HLA typing”

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PubMed1977

HLA typing and primary cadaver graft survival.

Analysis of 463 consecutive primary cadaver renal transplants showed no influence of HLA match grade on renal allograft survival. Additional categorization according to HLA match grade and degree of presensitization again showed no correlation between match grade and graft survival. Mismatches and matches of specific antigens, cross-reacting groups of antigens, and effect of matching at both locus A and B were also evaluated. There was no significant effect on graft survival except when mismatches against donor A2 and cross-reacting group A2, A28 occurred. A trend toward better graft survival was suggested in recipients matched for A9 and cross-reacting group A9, Aw 23, Aw 24. Although HLA match grade did not influence ultimate graft survival, HLA typing remains important, especially to avoid mismatch against donor A2 antigen. In addition, subsequent detection of new specificities, particularly in other than the A and B loci, may provide significance in the future.

Cadaver↗
PubMed1977

Reactivity of HLA typing sera against cultured lymphoblastoid cell lines and purified peripheral B and T cells from the same original donors.

Anomalous cytotoxicity reactions are observed in some HLA typing sera when cultured lymphoid cells are used as targets. These extra reactions are also detected when the purified B cells from the original donors of the cell lines are used. This observation strongly indicates that these extra reactions are directed to the B cell alloantigens which are normally expressed on B cells of the original donor.

B-Lymphocytes↗
PubMed1976

Nasopharyngeal carcinoma and Burkitt's lymphoma in a Canadian family. I. HLA typing, EBV antibodies and serum immunoglobulins.

Two nasopharyngeal carcinomas of the lymphoepithelioma type and two Burkitt's lymphomas with the characteristic histopathologic features developed in three siblings and one first-degree cousin in a large French-Canadian family. Epstein-Barr virus antibody titres in the two lymphoepithelioma cases but not in the Burkitt's lymphoma cases were, as expected, greatly elevated. HLA typing of the family members failed to disclose HLA antigens A2 and B Sin-2, which have been associated with lymphoepithelioma in Asia. The occurrence, however, of a plasmacytoma in one other first-degree cousin and low serum IgA values in several siblings and cousins suggests the possibility of a genetically determined predisposing B-cell dysfunction in the development of these tumours.

Adolescent↗
PubMed2025

HLA-Typing of Donor-Origin Cells Enriched From Urine Cell Culture of Kidney Transplanted Recipients.

The incomplete or lack of histocompatibility information constitutes a barrier for the early detection and management of de novo donor-specific antibodies (DSA). To improve the quantity and quality of DNA materials for HLA typing, we developed a non-invasive culture-based method, using DNA extracted from enriched donor-derived kidney stem cells (DKSC) selectively cultured from the urine of kidney transplant receipients (KTR) to allow high-resolution typing by next-generation sequencing. This prospective proof-of-concept study evaluated the feasibility and performance of this approach. DKSC were enriched from the urine of 60 KTRs. DNA extracted from culture-enriched DKSC showed significantly higher concentration and better quality than unbound cells, and with identical short tandem repeat (STR) and 100% concordance compared to that obtained from peripheral blood. Our results suggest that cultured-enriched DKSC are non-invasive and useful for determining HLA and other genes for KTRs where donor information is limited or lacking.

Humans↗
PubMed1977

Polymyalgia rheumatica and temporal arteritis in blacks--clinical features and HLA typing.

Reports of polymyalgia rheumatica and temporal arteritis in blacks are rare. We analyzed five cases of polymyalgia rheumatica and one case of temporal arteritis appearing in blacks. Polymyalgia rheumatica and temporal arteritis in blacks have the same presentation, course, and response to treatment as in Caucasians. A previously unrecorded case of polymyalgia rheumatica and biopsy-proven temporal arteritis in a black had a similar presentation and course as cases in whites. HLA typing of five cases of polymyalgia rheumatica in blacks revealed an increased incidence of AW30 and BW16 in comparison to whites and polymyalgia.

Black or African American↗
PubMed1979

Immunological features of juvenile onset diabetic patients correlated to HLA type.

Ninety-six juvenile onset type diabetics showed an increase in the frequency of HLA B8 and B15 and a decrease in frequency of HLA B7 antigens. Sixty-four maturity onset diabetics showed no disturbance in the frequency of these antigens. Fifty-four of the juvenile onset type diabetics, with an average duration of disease of 3.2 years were tested for the presence of islet cell antibodies (ICAs). Thirty-two per cent were positive, the incidence decreasing from 70% in those patients tested within 1 year of diagnosis to zero in those patients tested within 1 year of diagnosis to zero in those patients tested more than 5 years after diagnosis. No correlation was found between the incidence of ICAs and either cell-mediated immune reactions or HLA type. B15 positive patients were associated with cell-mediated immune reactions to pancreatic antigens and with the presence of other tissue autoantibodies. HLA phenotypes were not associated with environmental data. Diabetic siblings had identical HLA A-B haplotypes more often than could be expected to occur by chance.

Adolescent↗
PubMed1979

HLA typing and Guillain-Barré syndrome.

In an effort to determine if there might be an association between Guillain-Barré syndrome and specific antigens of the HLA system, 18 patients with Guillain-Barré syndrome were typed for HLA-A, B, and D antigens. No statistically significant relationship was established by this study.

HLA Antigens↗
PubMed1978

HLA typing and affective disorders: a study in the Italian population.

HLA phenotype distribution was investigated in 91 affective patients. Significant increases over those of the control population were found in HLA-A 29 and in Bw 22 frequencies, while A 10 and A 30 were decreased. No significant difference was shown between the two clinical subgroups (41 unipolar patients and 50 bipolar ones). On comparing our data with those from other authors, Bw 16 was significantly increased. However, a high degree of heterogeneity was also shown for this antigen. Of some interest is the finding that relapsed and non-relapsed patients during long-term lithium therapy display diverging HLA phenotype distributions, with B 5 increased among the non-relapsed subjects.

Bipolar Disorder↗
PubMed1979

HLA types and ABO blood groups in patients with infectious mononucleosis.

Investigations of HLA and blood-groups were carried out in 68 patients with infectious mononucleosis comprising all known cases diagnosed within one year in a restricted geographical area of Denmark. The HLA distribution of these patients did not differ significantly from that of controls. Combining the results of the present investigation with two previous studies did not show any significantly different distribution from that of combined control groups. The ABO and Rhesus typing was in accordance with that found in a major Danish control group. However, available studies do not exclude the possibility that HLA-D/DR or still unknown HLA factors may be involved in the susceptibility to mononucleosis.

ABO Blood-Group System↗
PubMed1979

The polyglandular failure syndrome: disease inheritance, HLA type, and immune function.

The occurrence of disease and the inheritance of histocompatibility leukocyte antigens (HLA) were evaluated in 11 patients with the polyglandular failure syndrome and 42 of their relatives. The gene frequency of the HLA-B8 allele (seven of 22) and the HLA-A1, B8 haplotype phenotype frequency (five of 11) were increased in patients with polyglandular failure as compared with a control population. Eleven of 42 relatives had a polyglandular failure illness. Disease prevalence correlated with HLA inheritance in some families, but not all. Patients and diseased relatives had a high incidenceof immunologic dysfunction: autoantibodies, including antinuclear antibodies; elevated serum immunoglobulins (three of 16); abnormal skin tests (four of nine). Polyglandular failure appears to be an HLA-B8-associated syndrome with a high prevalence of disease in relatives. Immunologic dysfunction resulting from a gene(s) on chromosome 6, in linkage dysequilibrium with the HLA-B8 allele, may be a factor in the pathogenesis of polyglandular failure illnesses.

Addison Disease↗
PubMed1978

HLA typing on Italian multiple sclerosis population.

Considerable evidence suggests the existence of significant differences of HLA distribution between M.S. patients and normal healthy subjects of the same population. In the present work we investigate whether the antigen DW2 may be a better marker for M.S. than the specificities at the loci A and B by means of in vitro one-way mixed lymphocyte cultures.

HLA Antigens↗