Hormone and Metabolic Research, Table of Contents Horm Metab Res 2014; 46(05): 376-377DOI: 10.1055/s-0033-1363279 Reply to Letter to the Editor © Georg Thieme Verlag KG Stuttgart · New YorkOsteoprotegerin in Primary Hyperparathyroidism J. Szymczak 1 Diabetology and Isotope Therapy, Wroclaw Medical University, Wroclaw, Poland , A. Bohdanowicz-Pawlak 1 Diabetology and Isotope Therapy, Wroclaw Medical University, Wroclaw, Poland› Author AffiliationsRecommend Article Abstract Buy Article Full Text References References 1 Minisola S, Cipriani C, Piemonte S, Colangelo L, Pepe J, Romagnoli E. Osteoprotegerin serum levels in primary hyperparathyroidism and changes following surgery. Horm Metab Res 2014; Jan 10 [Epub ahead of print] 2 Szymczak J, Bohdanowicz-Pawlak A. Osteoprotegerin, RANKL, and bone turnover in primary hyperparathyroidism: the effect of parathyroidectomy and treatment with alendronate. Horm Metab Res 2013; 45: 759-764 3 Nakchbandi IA, Lang R, Kinder B, Insogna KL. The role of the receptor activator of nuclear factor-κB ligand/osteoprotegerin cytokine system in primary hyperparathyroidism. J Clin Endocrinol Metab 2008; 93: 967-973 4 Kerschan-Schindl K, Riss P, Krestan C, Rauner M, Bieglmayer C, Gleiss A, Fialka-Moser V, Niederle V, Pietschmann P. Bone Metabolism in Patients with Primary Hyperparathyroidism Before and After Surgery. Horm Metab Res 2012; 44: 476-481 5 Stilgren LS, Hegedüs LM, Beck-Nielsen H, Abrahamsen B. Osteoprotegerin levels in primary hyperparathyroidism: effect of parathyroidectomy and association with bone metabolism. Calcif Tissue Int 2003; 73: 210-216 6 Stilgren LS, Rettmer E, Eriksen EF, Hegedüs L, Beck-Nielsen H, Abrahamsen B. Skeletal changes in osteoprotegerin and receptor activator of nuclear factor κb ligand mRNA levels in primary hyperparathyroidism: effect of parathyroidectomy and association with bone metabolism. Bone 2004; 35: 256-265 7 Rubin MR, Bielizikian JP, McMashon DJ, Jacobs T, Shane E, Siris E, Udesky J, Silverberg SJ. The natural history of primary hyperparathyroidism with or without parathyroid surgery after 15 years. J Clin Endocrinol Metab 2008; 93: 3462-3470 8 Nomura R, Sugimoto T, Tsukamoto T, Yamauchi M, Sowa H, Chen Q, Yamaguchi T, Kobayashi A, Chihara K. Marked and sustained increase in bone mineral density after parathyroidectomy in patients with primary hyperparathyroidism; a six-year longitudinal study with or without parathyroidectomy in a Japanese population. Clin Endocrinol (Oxf.) 2004; 60: 335-342 9 Glass II DA, Bialek P, Ahn JD, Starbuck M, Patel MS, Clevers H, Taketo MM, Long F, McMahon AP, Lang RA, Karsenty G. Canonical Wnt Signaling in Differentiated Osteoblasts Controls Osteoclast Differentiation. Developmental Cell 2008; 8: 751-764