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  • 1
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background : A triggering infectious agent has long been postulated in rheumatoid arthritis. Data on the possible role of Helicobacter pylori infection are lacking.Aim : To assess the effect of H. pylori eradication in patients with rheumatoid arthritis.Methods : Fifty-eight adult patients with established rheumatoid arthritis and dyspeptic symptoms were recruited — 28 were H. pylori-positive and 30 were H. pylori-negative on the basis of invasive tests. All infected patients were treated successfully. We evaluated the disease activity using clinical and laboratory parameters at baseline and every 4 months during 2 years, and compared the variations in the two subgroups.Results : H. pylori-eradicated rheumatoid arthritis patients showed progressive improvement over time (P 〈 0.0001) of all clinical indices compared with baseline, whereas H. pylori-negative rheumatoid arthritis patients remained substantially unchanged. After 2 years, H. pylori-eradicated rheumatoid arthritis patients differed significantly (P 〈 0.04–0.0001) from patients without H. pylori infection in terms of improvement of all clinical parameters. At the same time point, several laboratory indices (erythrocyte sedimentation rate, fibrinogen, α2-globulins and antinuclear antibody) showed significantly lower values (P 〈 0.02–0.0003) in the H. pylori-eradicated subgroup compared to the H. pylori-negative subgroup.Conclusions : Our data suggest that H. pylori infection is implicated in the pathogenesis of rheumatoid arthritis, in that its eradication may induce a significant improvement of disease activity over 24 months. H. pylori eradication seems to be advantageous in infected rheumatoid arthritis patients, but controlled studies are needed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Achse Hypothalamus-Hypophyse-Nebennierenrinde – Androgene –Östrogene – rheumatoide Arthritis – Entzündung – Sexualhormone – Zytokine ; Key words Hypothalamic-pituitary-adrenocortical axis – androgens – estrogens – rheumatoid arthritis – inflammation – sex hormones – cytokines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The altered cortisol and adrenal androgen (i. e., dehydroepiandrosterone sulfate = DHEAS) secretion, observed during testing in rheumatoid arthritis (RA) patients not treated with corticosteroids, should be clearly regarded as a “relative adrenal insufficiency” in the setting of a sustained inflammatory process, as shown by high serum IL-6 levels. Androgens seem implicated in the pathophysiology of autoimmune disorders, including RA, as natural immunosuppressors. Low plasma synovial fluid testosterone concentrations are observed in male RA patients; low plasma DHEAS levels are mainly observed in female RA patients. The menopausal peak of RA suggests that estrogens and/or progesterone deficiency also play a role in the disease, and many data indicate that estrogens suppress cellular immunity, but stimulate humoral immunity (i. e., deficiency promotes cellular Th1-type immunity). Gene polymorphisms for enzymes involved in the steroidogenesis seem to further complicate the role of sex hormones in the susceptibility to autoimmunity. Acquired changes of sex steroid metabolism seem to also play a role in the peripheral sex hormone levels. In conclusion, a complex interaction between the hypothalamus-pituitary-adrenocortical and gonadal axis functions is evident in RA.
    Notes: Zusammenfassung Untersuchungen von bis dahin mit Glukokortikoiden unbehandelten Patienten mit rheumatoider Arthritis (RA) zeigen Abweichungen der Spiegel für Kortisol und adrenalen Androgenen (vor allem Dehydroepiandrosteronsulfat, DHEAS), die in der Relation zu gleichzeitig hohen Serumspiegeln von IL-6 eindeutig als relative Nebenniereninsuffizienz zu bezeichnen sind. Androgene dürften in der Pathogenese von Autoimmunerkrankungen, einschließlich der RA, als physiologische Immunosuppressoren eine Rolle spielen. Bei männlichen RA-Patienten wurden niedrige Testosteronspiegel sowohl im Plasma als auch in der Synovia gefunden, bei RA-Patientinnen waren die entsprechenden Spiegel für DHEAS erniedrigt. Die Häufund der RA um die Menopause legt weiter eine pathophysiologische Bedeutung sinkender Spiegel von Östrogenen und/oder Progesteron nahe. Zahlreiche Befunde deuten auf suppressive Effekte von Östrogenen auf die zelluläre Immunität, während sie stimulierend auf die humorale Immunität wirken (bzw. ein Östrogendefizit steigert die Th 1-Typ-vermittelte Immunität). Genetische Polymorphismen von Enzymen der Steroidbiosynthese scheinen zusätzlich die Rolle von Sexualsteroiden in der Entwicklung von autoimmunen Reaktionen zu begünstigen. Darüberhinaus beeinflussen erworbene Formen eines veränderten Steroidmetabolismus die peripheren Spiegel der Sexualsteroide. Zusammenfassend ist die pathogenetische Relevanz eines komplexen Zusammenwirkens der Achsen Hypothalamus-Hypophyse-Nebennierenrinde und Hypothalamus-Hypophyse-Gonaden bei RA evident.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Clinical rheumatology 13 (1994), S. 203-206 
    ISSN: 1434-9949
    Keywords: Osteoarthritis ; Nail Lesion ; Longitudinal Line
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The presence of nail changes was investigated in 102 patients with nodal osteoarthritis of the hand. Nail lesions were seen in 14/102 patients (13.7%), a prevalence higher than that observed in 96 controls (4/96, 4.2%; chi square 4.37, p=0.036). An increased risk of nail changes was associated with osteoarthritis of the hand (odds ratio=3.7, 95% CI 1.13 to 11.8). Longitudinal lines were the most frequent nail alteration and accounted for 10/14 of the observed lesions. Nail involvement was associated with long-lasting symptoms related to osteoarthritis and high serum iron concentration. This complication of osteoarthritis is not as rare as might appear from the literature, and its pathogenesis remains to be investigated.
    Type of Medium: Electronic Resource
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