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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 22 (1993), S. 0 
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Many studies have focused on the epidemiology and pathogenesis of oral candidiasis in HIV infection. Little is known on the incidence and predisposing factors of asymptomatic oral Candida carriage in this setting, obviously an important issue in view of prophylaxis. To address this question. 261 consecutive HIV-infected individuals without clinical evidence of candidiasis were investigated. C. albicans was isolated from cultured oral cavity swabs of 63 subjects (24%). Colonization was significantly more frequent in IV drug users. CDC groups IV. and in subjects with lymphocytopenia. CD4+ cell depletion, or elevated beta-2 microglobulin. These data further suggest that oral candidiasis occurs in HIV infection as a result of C. albicans overgrowth and raise the question of primary antifungal prophylaxis in subjects with low CD4 counts and asymptomatic oral Candida carriage.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary C 1821 is a purified glycoprotein extract of Klebsiella pneumoniae serotype 2 with immunomodulating properties in animals (in vivo and in vitro) and in humans (in vitro). The compound is devoid of any apparent toxicity when given orally. The aim of the present work was to evaluate the effects of a short term oral administration of C 1821 on delayed cutaneous hypersensitivity to recall antigens in untreated cancer patients (mostly lymphomas). Consecutive patients were alternately allocated to receive C 1821 or placebo for 14 days. C 1821 restored and significanty (P〈0.02) enhanced skin reactions, as shown using the Multitest system.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to evaluate the value of autologous rosettes, a marker for a T lymphocyte subpopulation, in the diagnosis of T lymphocyte defects, we compared the ability of T cells from untreated patients with Hodgkin's disease to form autologous, total E and ‘active’ E rosettes. While the mean percentage of total E and ‘active’ E rosettes was significantly decreased in the patients compared to normal controls (0.01〈P〈0.02), no difference was observed for autologous rosettes (0.6〈P〈0.7). Only two patients showed decreased ‘active’ E rosettes whilst eight had decreased total E rosettes. Individual data in the patients showed a wide dispersion of autologous rosettes with both high and low percentages whatever the relative number of the two other T cell markers. No correlation was observed between any of the three types of rosettes in the patients whereas autologous rosettes were clearly correlated with total E (0.01〈P〈0.02) but not with ‘active’ rosettes in normal controls. Neither autologous nor ‘active’ rosettes could be correlated with skin test results.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Natural killer activity of peripheral blood mononuclear cells against the human cell line K 562 was evaluated in 11 patients with mycosis fungoides and simultaneously in 10 age-and sex-matched controls. In the patient group, nine had no previous treatment and in two topical therapy had been discontinued more than 3 months before. None had any associated disease or concurrent therapy that could interfere with the immune system. Patients with early disease showed a mean specific lysis and a range of individual data similar to the controls whereas patients with advanced disease had a significant defect of natural killer activity at effector: target ratios of 100:1, 50:1, and 25:1, as shown by the Mann-Whitney test. Preincubation of effector cells with α-interferon for 1 h in a single patient with low natural killing capacity led to a clear increase of the specific lysis, suggesting reduced functional activity rather than depletion of effector cells.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung FÄlle von erworbener C¯1-Esterase-Inhibitor (C¯1-INH)-Defizienz sind im Zusammenhang mit Serum-Immunoglobulin-VerÄnderungen beschrieben worden. Wir konnten drei weitere Patienten mit einem solchen Inhibitormangel, die an einer lymphoproliferativen Erkrankung mit Serum-Immunoglobin-VerÄnderungen litten, untersuchen. Es handelte sich um zwei Frauen mit chronisch-lymphatischer LeukÄmie und 7 S-IgM-Immunoglobulinen im Serum und eine dritte Patientin mit Lymphosarkom, KÄlte-Urtikaria und monoklonale IgG1-KryoglobulinÄmie. Bei diesen drei Patienten wurde ein Ähnliches Komplementprofil wie bei früher beschriebenen Patienten mit erworbener Defizienz des C¯1-INH gefunden: Verminderung der gesamten Komplementkonzentration, der C1-, C4- und C2-Komponenten, normaler Wert der C3-, C5-, C6-, C7-Komponenten, und normale Funktion des “alternativen pathways”. Nur eine Patientin mit erheblicher Defizienz des C¯1-INH (weniger als 10% des Normalwertes) zeigte klinische Symptome des angio-neurotischen ödems. Eine starke antikomplementÄre SerumaktivitÄt wurde in allen drei FÄllen nachgewiesen und in vitro-Tests demonstrierten, da\ diese AktivitÄt gegen die C1-Komponente gerichtet war. Die C¯1-INH-Defizienz ist sehr wahrscheinlich die Konsequenz der hohen C1-Aktivierung, aber andere Ursachen für die Verminderung des C¯1-INH können nicht ausgeschlossen werden: erniedrigte Synthese oder direkte Aktion der 7S-IgM-Immunoglobuline gegen den Inhibitor. Die folgenden Befunde sprechen für eine erworbene Defizienz des C¯1-INH: Abwesenheit einer Familiengeschichte von angio-neurotischem ödem. Abwesenheit einer C¯1-INH-Defizienz bei den Kindern der Patienten. Die Absenkung des Wertes der C-1-Komponente zusÄtzlich einer Senkung der C4- und C2-Komponenten, wÄhrend im hereditÄren angio-neurotischen ödem die C1-Komponente normal bleibt. Die Entdeckung abnormaler Immunoglobuline im Serum und einer anti-komplementÄren AktivitÄt gegen die C1-Komponente bei einem Patienten, der an einer lymphoproliferativen Erkrankung leidet. Diese Beobachtungen betonen die Wichtigkeit der Studie des Komplementsystems bei Erkrankungen mit VerÄnderung der Serum-Immunoglobuline und zeigen auch, da\ die Beobachtung einer Senkung der gesamten Komplementkonzentration zu einer vollstÄndigeren Studie des Komplementsystems führen soll.
    Notes: Summary Some cases of acquired C¯1-inhibitor (C¯1-INH) deficiencies have been reported in patients with serum immunoglobulin abnormalities. We recently discovered three additional cases in patients with lymphoproliferative disease and abnormal serum immunoglobulins: two female patients with chronic lymphocytic leukaemia and circulating 7S IgM, one female patient with lymphosarcoma, cold urticaria and a monoclonal IgG1-χ-kryoglobulin. The three patients had a complement profile similar to that seen in patients having an acquired deficiency of C¯1-INH: Low levels of total complement and of the early complement components (C1, C4, C2), normal levels of C3, C5, C6, C7 and normal function of the alternate pathway. Only one patient with a profound diminution of C¯1-INH showed symptoms of angio-oedema. Strong anticomplementary activity was present in the three sera and in vitro tests demonstrated a high capacity of the sera to activate C¯1. The C¯1-INH deficiency is most likely due to its interaction with activated C1. The following findings indicate an acquired C¯1-INH depletion: absence of angiooedema in the family, absence of C¯1-INH deficiency in the patient's children, the finding of extremely low levels of C1 in addition to low levels of C4 and C2, presence of an abnormal serum immunoglobulin and high serum anticomplementary activity directed toward C1 in a patient suffering from a lymphoproliferative disease. These observations stress the importance of the study of the complement system in affections involving immunoglobulin abnormalities and show that identification of a reduced level in haemolytical complement ought to lead to further investigations of the complement system.
    Type of Medium: Electronic Resource
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