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  • 1
    Electronic Resource
    Electronic Resource
    HLA-DR-MT matching improves graft survival rate in cadaver kidney transplantation (1983)
    Springer
    Journal of molecular medicine 61 (1983), S. 17-23 
    Details
    ISSN: 1432-1440
    Keywords: MHC ; Cadaver kidney transplantation ; Graft survival rate ; Blood transfusions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The influence of prospective HLA-DR matching on the graft survival rate was investigated in a multicenter analysis of 85 transplants. Simultaneously in a retrospective analysis of graft outcome the importance of matching for MT-antigens MT1, MT2 and MT3 as a newly defined B-cell alloantigen system was evaluated. HLA-DR antigens and MT-specificities were determined on B-cells enriched by nylon-wool filtration using locally well characterised HLA-DR antisera and the antiserum set of the 8th International Histocompatibility Workshop (“discase set”) which allowed the definition of the HLA-DR specificities HLA-DR 1–9 and of the MT-antigens MT 1–3. HLA-DR matching showed a significantly improved graft outcome only in HLA-DR identical donor-recipient combinations. In 11 of 60 patients with one HLA-DR compatibility additional matching for two MT-antigens, however, improved the two year graft survival rate from 60% to 91%. Altogether 17 patients were matched for two MT-specificities with their kidney donor and showed a superior prognosis of 94% at two years compared to 53% or 17% of recipients with one or zero MT compatibility. Graft outcome in this patient group was also superior to that of HLA-DR identical or HLA-AB identical grafts. These data suggested that the MT-system rather than the HLA-DR antigens may be of critical importance in cadaver kidney transplantation. In addition a favorable influence of pretransplant blood transfusions on less HLA-DR matched grafts was confirmed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01484435
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  • 2
    Electronic Resource
    Electronic Resource
    Ferritin in erythrocytes and plasma of patients with iron overload (1985)
    Springer
    Annals of hematology 51 (1985), S. 25-31 
    Details
    ISSN: 1432-0584
    Keywords: Ferritin ; Iron overload ; Erythrocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Erythrocyte and plasma ferritin was followed in 13 patients with iron overload undergoing phlebotomies for at least 6 months in comparison with untreated patients and normal males. Plasma ferritin was widely scattered with an average of only twice the normal, whereas erythrocyte ferritin was highly elevated to about twelve times the normal (p〈0.0001). — The time course of plasma and erythrocyte ferritin during phlebotomy therapy was analyzed in 3 patients with idiopathic hemochromatosis. Three stages were established: 1. plasma ferritin dropped gradually into the normal range while erythrocyte ferritin remained high, 2. appropriate phlebotomies maintained normal plasma ferritin and high erythrocyte ferritin, and indicated a monthly uptake of dietary iron of 150–200 mg at a steady state, 3. at low plasma ferritin levels, erythrocyte ferritin was rapidly decreased by further intensive phlebotomy therapy. Based on the presumed net removal of iron, 1 μg/l plasma ferritin was equivalent to 3–6 mg of body iron and 1 μg/l erythrocyte ferritin to somewhat less than 1 mg of body iron. — An elevated erythrocyte ferritin during phlebotomy therapy in iron overload not only depends on body iron stores like plasma ferritin but may also be regulated by the activity of erythropoiesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00320597
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    HLA-DR1 and DRw6 association in DR4-negative rheumatoid arthritis patients (1990)
    Springer
    Rheumatology international 10 (1990), S. 171-175 
    Details
    ISSN: 1437-160X
    Keywords: Rheumatoid arthritis ; HLA-DR antigens ; Conformational equivalence hypothesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study of 110 seropositive rheumatoid arthritis (RA) patients confirms the significant association of susceptibility to RA with HLA-DR4 specificity (P〈0.001). The DR1 frequency is elevated in the entire seropositive patient group, reaching marginal significance (P〈0.025). The DR4-negative patients, however, have a much higher prevalence of DR1 (P〈0.001). Surprisingly, the DRw6 specificity is significantly increased in the remaining DR4- and DR1-negative patients (P〈0.01). These results demonstrate that RA is not associated with a single HLA-specificity, but to various degrees with DR4, DR1, and DRw6. These findings, and particularly the newly recognized association with DRw6, support the hypothesis that functionally equivalent shared epitopes or conformations on otherwise distinct MHC molecules may confer risk for developing RA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02274843
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    Paper (German National Licenses)
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