Is there a psoriatic osteopathy? -- the activity of bone resorption in psoriatics is related to inflammatory joint process.
1999
The aim of this study was to examine former own histomorphological results by using biochemical markers of bone collagen catabolism in patients with psoriasis vulgaris and psoriatic arthritis and to compare these results with those from rheumatoid arthritis. - The diagnosis of PsA was made according to the diagnostic criteria of Moll and Wright modified by Bennet. Urine was collected from 99 patients with PsA, 21 patients suffering from PS without articular manifestations, 154 patients with RA fulfilling the ACR criteria of 1987, and 80 healthy controls. Pyridinoline and deoxypyridinoline in urine were analyzed by HPLC, levels of CrP and ESR were estimated using laboratory assessment. - Both crosslinks show a elevated excretion in PsA (particularly in active PsA / aPsA) as well as in RA. PS and Controls show no significant difference in the elimination of crosslinks. The levels of both crosslinks are higher in females than males in all groups. With the exception of Dpyd levels in urine which only show a tendency to correlate with ESR, there are positive correlations between measured crosslink-levels in urine and markers of inflammation. The Pyd/Dpyd ratio displays a significant correlation with ESR. - An increased breakdown of collagen I and II was found only in active forms of psoriatic arthritis and in rheumatoid arthritis. Our biochemical results do not demonstrate a complete agreement with former scintigraphic or histological investigations of other authors and own histomorphological results.
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