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  • 1
    ISSN: 1432-0584
    Keywords: Key words Behçet's disease ; Chronic myelogenous leukemia ; Pathergy reaction ; Adverse effect ; Alpha-interferon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Two patients with chronic myelogenous leukemia (CML) who developed characteristic features of Behçet's disease (BD) during alpha-interferon (IFN-α) treatment and another patient who had a diagnosis of BD preceding CML are presented. In the first two patients, features of BD appeared 6 months after the initiation of IFN-α treatment; they included recurrent oral aphthae, genital ulceration, arthritis, folliculitis, and a positive skin pathergy test. The third patient, however, had a diagnosis of Behçet's disease 4 years before diagnosis of Philadelphia-positive CML. We prospectively examined the skin pathergy reaction in a group of patients with CML, multiple myeloma, and hairy cell leukemia both before and after IFN-α treatment and found two additional patients with CML who developed a positive skin pathergy test following IFN-α treatment.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Rheumatology international 19 (1999), S. 23-26 
    ISSN: 1437-160X
    Keywords: Key words Behçet's disease ; Cytotoxic T cells ; CD16+CD56+
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Behçet's disease is a systemic vasculitis of unknown etiology. Various immune abnormalities have previously been shown in Behçet's disease. We investigated T lymphocyte subsets associated with cytotoxic activity and natural killer (NK) cells by flow cytometry in 37 patients with Behçet's disease, 38 healthy controls, and 17 diseased control patients. Compared to the healthy controls, CD4+CD16+ and CD4+CD56+ subsets were found to be higher in the Behçet's disease group as well as in the disease control group (CD4+CD16+: BD=5 ± 3, DC=14 ± 14, HC= 3 ± 2, P=0.001; CD4+CD56+: BD=11 ± 5, DC= 18 ± 17, HC=8 ± 6, P=0.01). CD8+CD16+ and CD8+CD56+ T cell subsets were at normal levels in Behçet's disease but found to be elevated in disease controls. Similarly, NK cells (CD16+CD56+) were high only in the disease control group. Significant increases in CD4+CD16+ and CD4+CD56+ cell subsets in Behçet's patients and disease controls suggest that T cell activation patterns of these subsets in Behçet's disease are similar to those in other inflammatory disorders.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-9949
    Keywords: Key words:Chronic lymphocytic leukaemia – Pitting oedema – RS3PE syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: We describe a case of remitting seronegative symmetrical synovitis with pitting oedema (RS3PE syndrome) in a 67-year-old man. Immunophenotyping studies and histology of biopsy specimens revealed chronic lymphocytic leukaemia (CLL). Polyarthritis and oedema were revealed by small doses of corticosteroids. The association of RS3PE syndrome with rheumatological and malign disorders are discussed.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1434-9949
    Keywords: Behçet's Disease ; Anti-endothelial Cell Antibodies ; von Willebrand Factor Antigen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Endothelial cell dysfunction has previously been demonstrated in Behçet's disease which has vasculitic features. In this study we investigated antiendothelial cell antibodies (AECA) and von Willebrand factor antigen (vWF) levels in patients with Behçet's disease. In vitro effects of patient sera on endothelial cell proliferation were also evaluated. AECAs were present in 29% of 70 Behçet's disease patients (Binding Index:25±29% vs 9±7% in normal controls, p〈0.005). 95% of AECA positive patients were clinically active compared to 74% of AECA negative patients (p=0.04). Among specific organ manifestations only active arthritis correlated with AECA positivity (6 of 7 patients vs 14 of 63, p=0.002). AECA positive patients had a significantly higher mean ESR (37±24 mm/h vs 21±17 mm/h, p:0.006). Mean vWF levels were also significantly higher in patients compared to controls (166±75% vs 84±34%, p.〈0.0001). No correlations were observed between AECA titres and vWF levels. No significant differences were observed between patients and controls when endothelial cell proliferation was studied (Proliferation Index: 1.25±0.28 vs 1.12±0.25, p=0.5). Our results suggest that AECA may be related to disease activity in Behçet's disease. The presence of vWF, even in patients in complete remission, might be related to factors other than endothelial damage for vWF release from endothelial cells.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We describe antigens of Plasmodium falciparum recognised by murine monoclonal antibodies which by immunofluorescence react with the rhoptry organelles of the extracellular merozoite stage. Immunoblotting shows that the antibodies recognise two major parasite antigens of Mr 82 and 65 kilodaltons (kDa). Immunoprecipitations from detergent extracts of [35S]-methioninelabelled parasites show that the 82-kDa and 65-kDa antigens are parasite proteins. Pulse-chase experiments on synchronous parasite cultures show that the 82-kDa protein is synthesised during early schizogony and is later processed into the 65-kDa antigen in segmenting schizonts. In Nonidet P-40, these antigens are non-covalently associated with two other proteins of 40 kDa and 42 kDa. The 40/42-kDa doublet is synthesised in parallel with the 82 kDa antigen and persists, apparently unchanged, till the end of the cell cycle.
    Type of Medium: Electronic Resource
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