UNLABELLED: We evaluated the impact of high dose of zoledronic acid on the superficial vascular network parameters of a membranous bone site. During a 5-day follow-up, significant reduction of the vascular density is observed only in the treated group. INTRODUCTION: The superficial vascularization is of great importance in membranous bone-healing process. A new rat calvarium intravital model was developed to study the short-term effect of a single high dose of zoledronic acid infusion on the superficial vascularization. METHODS: Optical bone chambers were implanted in the bone tissue surface of Sprague-Dawley rats' calvarium. Nine rats were injected i.v. with 400 µg/kg of zoledronic acid (Z group), and nine rats were injected with vehicle (PSS group). A 5-day follow-up of the vascular network was made by the use of pictures analysis method. RESULTS: The vascular density significantly decreases only in Z group but there was no significant difference between groups at individual time points. The total length of the vascular network decreases significantly in Z group only (p=0.003) with a significant higher decrease at D3 (p=0.04) and D5 (p=0.02) compared with control. The vascular density related to the smaller vessels (width, 5-10 µm) decreases significantly between T0 and D5 in Z group only (p=0.002). CONCLUSIONS: With the help of an original intravital animal model a significant modifications on the total length of the vascular network and the vascular density of small vessels are highlighted on a membranous bone site.
UNLABELLED: We evaluated the impact of high dose of zoledronic acid on the superficial vascular network parameters of a membranous bone site. During a 5-day follow-up, significant reduction of the vascular density is observed only in the treated group. INTRODUCTION: The superficial vascularization is of great importance in membranous bone-healing process. A new rat calvarium intravital model was developed to study the short-term effect of a single high dose of zoledronic acid infusion on the superficial vascularization. METHODS: Optical bone chambers were implanted in the bone tissue surface of Sprague-Dawley rats' calvarium. Nine rats were injected i.v. with 400 µg/kg of zoledronic acid (Z group), and nine rats were injected with vehicle (PSS group). A 5-day follow-up of the vascular network was made by the use of pictures analysis method. RESULTS: The vascular density significantly decreases only in Z group but there was no significant difference between groups at individual time points. The total length of the vascular network decreases significantly in Z group only (p=0.003) with a significant higher decrease at D3 (p=0.04) and D5 (p=0.02) compared with control. The vascular density related to the smaller vessels (width, 5-10 µm) decreases significantly between T0 and D5 in Z group only (p=0.002). CONCLUSIONS: With the help of an original intravital animal model a significant modifications on the total length of the vascular network and the vascular density of small vessels are highlighted on a membranous bone site.
Authors: Daniele Santini; Bruno Vincenzi; Sara Galluzzo; Fabrizio Battistoni; Laura Rocci; Olga Venditti; Gaia Schiavon; Silvia Angeletti; Federica Uzzalli; Michele Caraglia; Giordano Dicuonzo; Giuseppe Tonini Journal: Clin Cancer Res Date: 2007-08-01 Impact factor: 12.531
Authors: Dennis M Black; Pierre D Delmas; Richard Eastell; Ian R Reid; Steven Boonen; Jane A Cauley; Felicia Cosman; Péter Lakatos; Ping Chung Leung; Zulema Man; Carlos Mautalen; Peter Mesenbrink; Huilin Hu; John Caminis; Karen Tong; Theresa Rosario-Jansen; Joel Krasnow; Trisha F Hue; Deborah Sellmeyer; Erik Fink Eriksen; Steven R Cummings Journal: N Engl J Med Date: 2007-05-03 Impact factor: 91.245
Authors: Sundeep Khosla; David Burr; Jane Cauley; David W Dempster; Peter R Ebeling; Dieter Felsenberg; Robert F Gagel; Vincente Gilsanz; Theresa Guise; Sreenivas Koka; Laurie K McCauley; Joan McGowan; Marc D McKee; Suresh Mohla; David G Pendrys; Lawrence G Raisz; Salvatore L Ruggiero; David M Shafer; Lillian Shum; Stuart L Silverman; Catherine H Van Poznak; Nelson Watts; Sook-Bin Woo; Elizabeth Shane Journal: J Bone Miner Res Date: 2007-10 Impact factor: 6.741
Authors: M Aapro; P A Abrahamsson; J J Body; R E Coleman; R Colomer; L Costa; L Crinò; L Dirix; M Gnant; J Gralow; P Hadji; G N Hortobagyi; W Jonat; A Lipton; A Monnier; A H G Paterson; R Rizzoli; F Saad; B Thürlimann Journal: Ann Oncol Date: 2007-09-28 Impact factor: 32.976