@article{3145600, title = "Dual-Energy X-Ray Absorptiometry and Quantitative Ultrasound in Patients With Paget's Disease of Bone Before and After Treatment With Zoledronic Acid: Association With Serum Bone Markers and Dickkopf-1", author = "Polyzos, Stergios A. and Anastasilakis, Athanasios D. and Litsas, and Ioannis and Sapranidis, Michail and Efstathiadou, Zoe and Kita, Marina and and Arsos, Georgios and Moralidis, Efstratios and Zafeiriadou, Efthimia and and Papatheodorou, Athanasios and Terpos, Evangelos", journal = "Journal of Clinical Densitometry", year = "2010", volume = "13", number = "2", pages = "190-196", publisher = "EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC", issn = "1094-6950", doi = "10.1016/j.jocd.2010.01.006", keywords = "Dickkopf-1; dual-energy X-ray absorptiometry; Paget’s disease of bone; quantitative ultrasound; zoledronic acid", abstract = "The main aim of this study was to determine the effect of zoledronic acid (ZOL) on parameters of dual-energy X-ray absorptiometry (DXA) and quantitative ultrasound (QUS) in unaffected bones of patients with Paget’s disease of bone (PDB). The secondary aim was the association of bone markers and Dickkopf (DKK)-1 with parameters of DXA and QUS. Ten consecutive patients with polyostotic PDB (median age: 63 yr) received a single 5-mg ZOL infusion. The patients were subjected to calcaneal QUS and DXA of both lumbar spine (LS) and femoral neck (FN). Blood samples for serum bone markers and DKK-1 were serially obtained for 12 mo. There was a significant increase in LS (p = 0.005) and FN bone mineral density (BMD) (p = 0.021) 12 mo after ZOL infusion. QUS parameters remained unaffected throughout the study. A significant correlation between broadband ultrasound attenuation and DKK-1 (p < 0.001) and between speed of sound and DKK-1 (p = 0.033) at baseline was found, which remained significant after adjustment for gender, age, and body mass index. Our data suggest that a single ZOL infusion significantly increases nonpagetic BMD 12 mo after treatment but has no effect on QUS parameters or DKK-1. Significant correlations were observed between QUS parameters and DICK-1 at baseline." }