{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T06:03:00Z","timestamp":1778997780874,"version":"3.51.4"},"reference-count":45,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2008,3,1]],"date-time":"2008-03-01T00:00:00Z","timestamp":1204329600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2008,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>This paper studies the effect of oral risedronate on osteoclast precursors, osteoclast formation, and cytokine production in 25 osteoporotic women. Risedronate is effective in reducing the number of osteoclast precursors, their formation, vitality, and activity and the level of RANKL and TNF-\u03b1 in cultures.<\/jats:p>\n               <jats:p>Introduction: Bisphosphonates inhibit bone resorption by acting against osteoclasts. Some in vitro studies suggest that they induce osteoclast apoptosis; others suggest that they exert an effect on the production of pro-osteoclastogenic cytokines. The effect of risedronate on osteoclastogenesis by peripheral blood mononuclear cells (PBMCs) in postmenopausal osteoporosis has not been previously studied. This paper examined the influence of risedronate on the formation of osteoclast precursors and cytokine production within the compass of osteoclastogenesis in osteoporosis.<\/jats:p>\n               <jats:p>Materials and Methods: This study was conducted on 38 osteoporotic women; 25 patients were treated with risedronate 5 mg\/d, whereas 13 were treated with calcium 1 g\/d and vitamin D 800 UI\/d. The following parameters were assessed: changes in bone turnover, circulating osteoclast precursors, formation of osteoclasts in PBMC cultures, their activity and vitality, and variations in the production of pro-osteoclastogenic cytokines before and after therapy.<\/jats:p>\n               <jats:p>Results: After 3 mo of risedronate, there was a significant reduction in the number and degree of differentiation of osteoclast precursors, osteoclast formation, vitality and activity, and in the level of RANKL and TNF in cultures and of TNF and osteoprotegerin (OPG) in serum, whereas in the group treated with calcium and vitamin D, there were no significant changes.<\/jats:p>\n               <jats:p>Conclusions: Our data show that risedronate is effective in lowering the number of circulating osteoclast precursors, their formation, vitality, and activity in cultures, and in reducing the level of pro-osteoclastogenic cytokines in culture supernatants and in serum.<\/jats:p>","DOI":"10.1359\/jbmr.071031","type":"journal-article","created":{"date-parts":[[2007,10,29]],"date-time":"2007-10-29T18:00:47Z","timestamp":1193680847000},"page":"373-379","source":"Crossref","is-referenced-by-count":55,"title":["Risedronate Reduces Osteoclast Precursors and Cytokine Production in Postmenopausal Osteoporotic Women"],"prefix":"10.1093","volume":"23","author":[{"given":"Patrizia","family":"D'Amelio","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, University of Torino, Torino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anastasia","family":"Grimaldi","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, University of Torino, Torino, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefania","family":"Di Bella","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, University of Torino, Torino, 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