{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T07:40:19Z","timestamp":1791186019968,"version":"4.1.0"},"reference-count":33,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[1993,5,1]],"date-time":"1993-05-01T00:00:00Z","timestamp":736214400000},"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":[[1993,5,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Trabecular bone loss in estrogen deficiency is associated with enhanced bone resorption with a smaller increase in bone formation. We previously reported that low doses of strontium can increase trabecular bone volume in rodents by affecting bone resorption and formation. In this study we determined the effect of a new divalent strontium salt (S12911) on bone loss induced by E2 deficiency. Sprague-Dawley female rats (230 g, n = 15\u201325 per group) were sham operated or ovariectomized (OVX) and treated with 17\u03b2-estradiol (E2, 10 \u03bcg\/kg\/day, sc) or S12911 by gavage at the dose of 77, 154, or 308 mg\/kg\/day or the vehicle. Treatment for 60 days with S12911 resulted in a dose-dependent increase in plasma, urine, and bone strontium concentrations without any deleterious effect on total or skeletal growth. OVX rats were osteopenic compared to sham rats as shown by decreased femoral dry bone weight and mineral content measured on bone ash and by DXA. Treatment of OVX rats with S12911 prevented bone loss as bone ash and bone mineral content were restored to the values in sham rats. Trabecular bone volume measured by histomorphometry on the tibial metaphysis was decreased by 46% in OVX rats and was corrected by E2. Treatment of OVX rats with S12911 increased the trabecular bone volume by 30\u201336%. Histomorphometric indices of bone resorption (osteoclast surface and number) were increased in OVX rats and were reduced by S12911 to the levels in sham rats. In contrast to this inhibitory effect on bone resorption, the osteoid surface, osteoblast surface, mineral apposition rate, and bone formation rate were as high in OVX rats treated with S12911 as in untreated OVX rats. In addition, plasma osteocalcin (OC) and alkaline phosphatase (ALP) levels remained elevated or were further increased in OVX rats treated with S12911. In contrast, treatment with E2 reduced both bone resorption and formation and plasma ALP and OC to the levels in sham rats. The data indicate that the divalent strontium salt S12911 is acting as an uncoupling agent that can prevent the femoral osteopenia and partially prevent the trabecular bone loss in E2-deficient rats by inhibiting bone resorption without reducing bone formation.<\/jats:p>","DOI":"10.1002\/jbmr.5650080512","type":"journal-article","created":{"date-parts":[[2010,2,3]],"date-time":"2010-02-03T16:48:46Z","timestamp":1265215726000},"page":"607-615","source":"Crossref","is-referenced-by-count":312,"title":["An uncoupling agent containing strontium prevents bone loss by depressing bone resorption and maintaining bone formation in estrogen-deficient rats"],"prefix":"10.1093","volume":"8","author":[{"given":"Pierre J.","family":"Marie","sequence":"first","affiliation":[{"name":"INSERM Unit\u00e9 349, H\u01d2pital Lariboisi\u00e8re, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monique","family":"Hott","sequence":"additional","affiliation":[{"name":"INSERM 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