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  • 1985-1989  (2)
  • Rheumatoid Arthritis  (1)
  • anti-ANA  (1)
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Years
  • 1985-1989  (2)
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Keywords
  • 1
    ISSN: 1434-9949
    Keywords: Psoriatic Arthritis ; Rheumatoid Arthritis ; Bone Mass ; Total Body Calcium ; Metacarpal Indices
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Psoriatic arthritis is thought to be associated with periarticular osteoporosis while rheumatoid arthritis may be associated with generalised as well as periarticular bone loss. To assess the extent of total and peripheral bone loss in these two diseases, total body calcium was measured by in vivo neutron activation analysis and peripheral bone mass was assessed by metacarpal indices in age-matched patients with psoriatic arthritis and rheumatoid arthritis treated with nonsteroidal anti-inflammatory drugs alone. In comparison with age and sex-matched normal controls, total and peripheral bone mass was normal in psoriatic arthritis. There were significant reductions in total (6.2% in men; 7.9% in women) and peripheral (10.9% in men; 12.8% in women) bone mass in patients with rheumatoid arthritis compared with controls. Peripheral bone mass was significantly correlated with the degree of radiographic damage in male and female patients with rheumatoid arthritis. The mean annual loss of total body calcium was insignificant in psoriatic arthritis (0.6% in men; 1.9% in women) but markedly greater in rheumatoid arthritis (4.4% in men; 2.7% in women). The data suggested that total and peripheral bone loss is greater in rheumatoid arthritis than psoriatic arthritis. Substantial reductions in peripheral bone mass in patients with rheumatoid arthritis not receiving corticosteroids may account in part for the small reductions in total bone mass.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-2592
    Keywords: Autoantibodies ; SLE ; RA ; anti-ANA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Autoantibodies from patients with systemic lupus erythematosus, rheumatoid arthritis, or other connective tissue disorders were probed for the presence of a cross-reactive idiotype (AM Id) originally defined on human anti-double-stranded DNA antibodies. The AM Id was distributed primarily among antibodies to double-stranded DNA, single-stranded DNA, or cardiolipin in patients with systemic lupus erythematosus and antibodies to single-stranded DNA or cardiolipin and rheumatoid factor in patients with rheumatoid arthritis, thus tending to codistribute with the predominant primary autoantibodies in both diseases. Strong associations were observed particularly between the AM Id and anti-single-stranded DNA antibodies in patients with systemic lupus erythematosus and the AM Id and anticardiolipin antibodies in patients with rheumatoid arthritis. Affinity absorption experiments with sera from individual lupus patients showed that up to 41% of the anti-single-stranded DNA antibodies were Id positive. The results indicate that the AM Id may be widely distributed among antibodies that have a potential for binding DNA.
    Type of Medium: Electronic Resource
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