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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Serum bone sialoprotein: a marker of bone resorption in postmenopausal osteoporosis.

Thirty healthy perimenopausal women who had normal lumber spine bone mineral density (LS-BMD) measured by dual energy X-ray absorptiometry (DEXA) participated in this study as controls. The pathological group comprised 50 postmenopausal osteoporotic women who had LS-BMD more that 2 SD below the normal mean of healthy perimenopausal women. Postmenopausal osteoporotic patients were allocated to three different therapeutic modalities (hormone replacement therapy HRT, alendronate or combined HRT and alendronate). Blood and urine samples were collected from all groups before and 12 months after treatment. Serum bone sialoprotein ( BSP) was measured by a specific radioimmunoassay and urinary pyridinoline (Pyr), deoxy-pyridinoline (DPyr) and N-telopeptide of type 1 collagen (NTX) were determined as biomarkers of bone resorption. In addition, serum IL-11 and TGFbeta2 were measured by enzyme immunoassays. The results obtained showed that serum BSP was significantly elevated in postmenopausal osteoporosis compared to that of healthy perimenopausal controls. Significant positive correlations exist between serum BSP and biomarkers of bone resorption (Pyr,DPyr,NTX) as well as bone resorptive cytokines (IL-11,TGFbeta2). Serum BSP decreased after different antiresorptive treatments and this decrease paralleled the decrease of bone resorption markers and the increase of LS-BMD. Based on these data, circulating BSP appears to be a valuable marker of bone resorption and monitoring therapy with antiresorptive drugs in postmenopausal osteoporosis.[1]

References

  1. Serum bone sialoprotein: a marker of bone resorption in postmenopausal osteoporosis. Shaarawy, M., Hasan, M. Scand. J. Clin. Lab. Invest. (2001) [Pubmed]
 
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