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  • 1
    ISSN: 1437-160X
    Keywords: Anticardiolipin antibodies ; Fetal loss ; Placental thrombosis ; Calcium heparin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The pregnancies of ten women, all with histories of at least two spontaneous abortions of unknown cause, were followed. All patients were positive for immunoglobulin (Ig) G anticardiolipin antibodies (aCL) and one also for IgM aCL, while none had lupus anticoagulant activity. During pregnancy, the patients were treated with calcium heparin in doses varying between 15,000 and 30,000 IU daily. IgG aCL were assayed on average at the 9th, 17th, 24th and 29th weeks of pregnancy and at the moment of delivery. Mean values of IgG aCL levels during the 10 pregnancies steadily fell as the pregnancies progressed, and this descrease was significant (r=0.985,P=0.002). All pregnancies terminated favourably, although delivery was brought forward in eight patients and six of the nine placentas examined showed signs of thrombosic events. We assume that a steady fall in IgG aCL levels during pregnancy may be considered as indicative of a favourable outcome.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1437-160X
    Keywords: Sjögren's syndrome ; HLA molecules ; Adhesion molecules ; TCR γδ cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using different monoclonal antibodies, we performed an immunofluorescent technique on labial salivary glands in order to investigate the immunological phenomena involved in Sjögren's syndrome (SS). An aberrant expression of HLA-DR molecules was detected on cytoplasm of epithelial labial salivary cells in 9 out of 19 (47%) patients, with SS. No such expression was found in 8 patients without SS or in 3 normal controls. HLA-DQ molecules were demonstrated also in two out of ten SS patients without HLA-DR. A lymphocytic infiltration was not correlated with the expression of class II molecules. T cells bearing γδ receptors were not detected. The intracellular adhesion molecules (ICAM-1) and lymphocyte function associated antigen-1 (LFA-1) were not found on epithelial glandular salivary cells of patients and controls. In conclusion, these data suggested that the absence of ICAM-1 and LFA-1 in salivary cells and the absence of infiltrating T cells bearing γδ receptors exclude their immunopathogenetic role in SS; moreover, these data demonstrated that the aberrant expression of HLA class II molecules on epithelial salivary cells of patients with SS is not a phenomenon correlated with the lymphocytic infiltration.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-9949
    Keywords: Chronic Discoid Lupus Erythematosus ; Anticardiolipin Antibodies ; Antiphospholipid Syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Anticardiolipin antibodies (aCL) of immunoglobulin (Ig) G and M classes were determined in 28 patients affected with chronic discoid lupus erythematosus (CDLE), comparing their prevalence and levels to those in 60 healthy subjects matched for age and sex. A high and significant frequency of IgG (67.8%) and IgM (50.0%) aCL together with prevalence of high antibody levels was found in CDLE patients, while healthy controls had IgG and IgM aCL in 1.6% and 3.3% of cases respectively. Clinical features in keeping with the diagnosis of antiphospholipid syndrome were found in one patient (3.5%), which, as the first manifestation of the syndrome, showed a pulmonary thromboembolism which appeared some days after prolonged exposure to the sun. These results provide additional data on autoimmune phenomena in CDLE and suggest that aCL test should be considered as useful aids in immunological diagnosis of CDLE.
    Type of Medium: Electronic Resource
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