{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,9]],"date-time":"2025-11-09T07:35:57Z","timestamp":1762673757817,"version":"3.37.3"},"reference-count":30,"publisher":"Oxford University Press (OUP)","issue":"8","license":[{"start":{"date-parts":[[1995,8,1]],"date-time":"1995-08-01T00:00:00Z","timestamp":807235200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100007197","name":"USPHS","doi-asserted-by":"crossref","award":["M01-RR006633","RO1-AR16061"],"award-info":[{"award-number":["M01-RR006633","RO1-AR16061"]}],"id":[{"id":"10.13039\/100007197","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1995,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>We have previously reported that bone formation is impaired on histomorphometric analysis of bone in patients with idiopathic osteoporosis. In the present study, 30 patients with idiopathic osteoporosis (18 men and 12 women mean age 44 \u00b1 12 years) and spinal and\/or appendicular fractures were studied. Compared with control values, bone biopsy analysis demonstrated reduced bone volume (13.0 \u00b1 4.4 vs. 23.2 \u00b1 4.4, p &amp;lt; 0.0001), osteoid volume (0.13 \u00b1 0.13 vs. 0.32 \u00b1 0.19, p = 0.001), osteoid surface (5.9 \u00b1 4.3 vs. 12.1 \u00b1 4.6, p = 0.0004), and diminished double-labeled mineralizing surface (MS\/BS 2.0 \u00b1 2.1 vs. 5.1 \u00b1 2.7%, p = 0.0001) in the patients. Since insulin-like growth factor 1 (IGF-1) is one of the major determinants of bone growth and remodeling, we measured the circulating level of this growth factor in these patients. The mean serum IGF-1 concentration was lower in patients as compared with 33 healthy age-matched controls (193 \u00b1 59 SD ng\/ml vs. 232 \u00b1 79). A significant difference was noted between the two groups only in subjects younger than 36 years. In patients with idiopathic osteoporosis, regression analysis of serum IGF-1 against the various histological parameters measured from the bone biopsy disclosed significant correlation's between serum IGF-1 and osteoblastic surface (r = 0.429, p = 0.032), mineralizing bone surface with a double label (r = 0.480, p = 0.015), and the bone formation rate (r = 0.457, p = 0.021). These findings suggest that in young eugonadal individuals with idiopathic osteoporosis, reduced IGF-1 concentrations may have an etiological role in the development of this disease.<\/jats:p>","DOI":"10.1002\/jbmr.5650100812","type":"journal-article","created":{"date-parts":[[2010,2,3]],"date-time":"2010-02-03T16:10:20Z","timestamp":1265213420000},"page":"1218-1224","source":"Crossref","is-referenced-by-count":79,"title":["Serum IGF 1 is low and correlated with osteoblastic surface in idiopathic osteoporosis"],"prefix":"10.1093","volume":"10","author":[{"given":"Berenice Y.","family":"Reed","sequence":"first","affiliation":[{"name":"Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph E.","family":"Zerwekh","sequence":"additional","affiliation":[{"name":"Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Khashayar","family":"Sakhaee","sequence":"additional","affiliation":[{"name":"Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Neil A.","family":"Breslau","sequence":"additional","affiliation":[{"name":"Center for Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frank","family":"Gottschalk","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles Y. 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