@article{3142222, title = "Serum Dickkopf-1 is increased and correlates with reduced bone mineral density in patients with thalassemia-induced osteoporosis. Reduction post-zoledronic acid administration", author = "Voskaridou, Ersi and Christoulas, Dimitrios and Xirakia, Charoula and and Varvagiannis, Konstantinos and Boutsikas, Georgios and Bilalis, Antonios and and Kastritis, Efstathios and Papatheodorou, Athanasios and Terpos, and Evangelos", journal = "Haematologica-the hematology journal", year = "2009", volume = "94", number = "5", pages = "725-728", publisher = "Ferrata Storti Foundation", doi = "10.3324/haematol.2008.000893", keywords = "thalassemia; osteoporosis; Dickkopf-1; osteoblast; zoledronic acid", abstract = "Dickkopf-1 is an inhibitor of Wnt signaling, which is crucial for osteoblast differentiation. We evaluated serum levels of Dickkopf-1 in 66 patients with thalassemia-induced osteoporosis who received therapy with zoledronic acid in a placebo-controlled, randomized trial. At baseline, thalassemia patients had increased serum levels of Dickkopf-1 that correlated with reduced bone mineral density of the lumbar spine and the distal radius. High Dickkopf-1 also correlated with increased bone resorption and reduced bone formation markets. Zoledronic acid produced a reduction in serum Dickkopf-1, which was associated with bone mineral density increase after 12 months of therapy. On the contrary, placebo group showed a borderline increase of Dickkopf-1, which was higher in patients who showed deterioration in pain scores. These results suggest that Dickkopf-1 is implicated in the pathogenesis of osteoporosis in thalassemia and reveal Dickkopf-1 as a possible target for the development of novel agents for the management of thalassemia-induced osteoporosis (ClinicalTrials. got., Identifier: NCT00346242)." }