{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,24]],"date-time":"2026-04-24T17:22:36Z","timestamp":1777051356460,"version":"3.51.4"},"reference-count":21,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[2020,2,1]],"date-time":"2020-02-01T00:00:00Z","timestamp":1580515200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,2,1]],"date-time":"2020-02-01T00:00:00Z","timestamp":1580515200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["aacejournalendocrinepractice.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Endocrine Practice"],"published-print":{"date-parts":[[2020,2]]},"DOI":"10.4158\/ep-2019-0325","type":"journal-article","created":{"date-parts":[[2019,9,26]],"date-time":"2019-09-26T15:28:48Z","timestamp":1569511728000},"page":"174-178","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":18,"title":["Low Free (But Not Total) 25-Hydroxyvitamin D Levels in Subjects with Normocalcemic Hyperparathyroidism"],"prefix":"10.1016","volume":"26","author":[{"given":"Xiangbing","family":"Wang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingqiong","family":"Meng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chi","family":"Su","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sue A.","family":"Shapses","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.4158\/EP-2019-0325_bb0010","doi-asserted-by":"crossref","first-page":"3993","DOI":"10.1210\/jc.2018-01225","article-title":"Primary hyperparathyroidism","volume":"103","author":"Bilezikian","year":"2018","journal-title":"J Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0015","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/j.jocd.2012.12.001","article-title":"Normocalcemic primary hyperparathyroidism","volume":"16","author":"Cusano","year":"2013","journal-title":"J Clin Densitom"},{"key":"10.4158\/EP-2019-0325_bb0020","doi-asserted-by":"crossref","first-page":"837","DOI":"10.1016\/j.beem.2018.09.009","article-title":"Management of normocalcemic primary hyperparathyroidism","volume":"32","author":"Cusano","year":"2018","journal-title":"Best Pract Res Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0025","article-title":"Vitamin D binding protein impact on 25-hydroxyvitamin D levels under different physiologic and pathologic conditions","volume":"2014","author":"Youselzadeh","year":"2014","journal-title":"Int J Endocrinol"},{"key":"10.4158\/EP-2019-0325_bb0030","doi-asserted-by":"crossref","first-page":"605","DOI":"10.4158\/EP161604.RA","article-title":"Vitamin D binding protein and 25-hydroxyvitamin D levels: emerging clinical applications","volume":"23","author":"Jassil","year":"2017","journal-title":"Endocr Pract"},{"key":"10.4158\/EP-2019-0325_bb0035","doi-asserted-by":"crossref","first-page":"171","DOI":"10.3389\/fendo.2019.00171","article-title":"25-Hydroxyvitamin D and vitamin D binding protein levels in patients with primary hyperparathyroidism before and after parathyroidectomy","volume":"10","author":"Wang","year":"2019","journal-title":"Front Endocrinol (Lausanne)"},{"key":"10.4158\/EP-2019-0325_bb0040","doi-asserted-by":"crossref","first-page":"1852","DOI":"10.1210\/jc.2010-2781","article-title":"The high serum monocyte chemoattractant protein-1 in obesity is influenced by high parathyroid hormone and not adiposity","volume":"96","author":"Sukumar","year":"2011","journal-title":"J Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0045","doi-asserted-by":"crossref","first-page":"659","DOI":"10.3945\/ajcn.114.088534","article-title":"Moderate weight loss in obese and overweight men preserves bone quality","volume":"101","author":"Pop","year":"2015","journal-title":"Am J Clin Nutr"},{"key":"10.4158\/EP-2019-0325_bb0050","doi-asserted-by":"crossref","first-page":"205","DOI":"10.3945\/ajcn.115.129478","article-title":"Vitamin D status of black and white Americans and changes in vitamin D metabolites after varied doses of vitamin D supplementation","volume":"104","author":"Alzaman","year":"2016","journal-title":"Am J Clin Nutr"},{"key":"10.4158\/EP-2019-0325_bb0055","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1111\/jgs.13774","article-title":"Response of vitamin D concentration to vitamin D3 administration in older adults without sun exposure: a randomized double-blind trial","volume":"64","author":"Schwartz","year":"2016","journal-title":"J Am Geriatr Soc"},{"key":"10.4158\/EP-2019-0325_bb0060","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1007\/s00423-019-01782-1","article-title":"Mild sporadic primary hyperparathyroidism: high rate of multiglandular disease is associated with lower surgical cure rate","volume":"404","author":"Tr\u00e9bouet","year":"2019","journal-title":"Langenbecks Arch Surg"},{"key":"10.4158\/EP-2019-0325_bb0065","doi-asserted-by":"crossref","first-page":"2385","DOI":"10.1210\/jc.2018-00336","article-title":"Hormonal contraceptive use is associated with higher total but unaltered free 25-hydroxyvitamin D serum concentrations","volume":"103","author":"Pilz","year":"2018","journal-title":"J Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0070","doi-asserted-by":"crossref","first-page":"3356","DOI":"10.1210\/JC.2015-2066","article-title":"Free 25(OH)D and the vitamin d paradox in African Americans","volume":"100","author":"Aloia","year":"2015","journal-title":"J Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0075","doi-asserted-by":"crossref","first-page":"3278","DOI":"10.1210\/jc.2018-00295","article-title":"Determination of free 25(OH)D concentrations and their relationships to total 25(OH) D in multiple clinical populations","volume":"103","author":"Schwartz","year":"2018","journal-title":"J Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0080","doi-asserted-by":"crossref","first-page":"2294","DOI":"10.1111\/liv.12819","article-title":"Total 25(OH) vitamin D, free 25(OH) vitamin D and markers of bone turnover in cirrhotics with and without synthetic dysfunction","volume":"35","author":"Lai","year":"2015","journal-title":"Liver Int"},{"key":"10.4158\/EP-2019-0325_bb0085","doi-asserted-by":"crossref","first-page":"996","DOI":"10.1161\/CIRCRESAHA.118.313558","article-title":"Serum bioavailable and free 25-hydroxyvitamin D levels, but not its total level, are associated with the risk of mortality in patients with coronary artery disease","volume":"123","author":"Yu","year":"2018","journal-title":"Circ Res"},{"key":"10.4158\/EP-2019-0325_bb0090","doi-asserted-by":"crossref","DOI":"10.1155\/2014\/561214","article-title":"Vitamin D binding protein and bone health","volume":"2014","author":"Bhan","year":"2014","journal-title":"Int J Endocrinol"},{"key":"10.4158\/EP-2019-0325_bb0095","doi-asserted-by":"crossref","first-page":"2226","DOI":"10.1210\/jc.2016-1104","article-title":"Osteoporotic Fractures in Men (MrOS) Research Group. Free 25-hydroxyvitamin D: impact of vitamin D binding protein assays on racial-genotypic associations","volume":"101","author":"Nielson","year":"2016","journal-title":"J Clin Endocrinol Metab"},{"key":"10.4158\/EP-2019-0325_bb0100","doi-asserted-by":"crossref","first-page":"323","DOI":"10.4158\/EP15951.OR","article-title":"Impact of ethnic background on clinical characteristics of cardiovascular risk factors among patients with primary hyperparathyroidism","volume":"22","author":"Hu","year":"2016","journal-title":"Endocr Pract"},{"key":"10.4158\/EP-2019-0325_bb0105","doi-asserted-by":"crossref","first-page":"805","DOI":"10.1016\/j.soard.2015.11.018","article-title":"Abnormal calcium, 25(OH)vitamin D, and parathyroid hormone after biliopancreatic diversion; correction through elongation of the common tract and reduction of the gastric pouch","volume":"12","author":"Ceriani","year":"2016","journal-title":"Surg Obes Relat Dis"},{"key":"10.4158\/EP-2019-0325_bb0110","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1038\/oby.2004.7","article-title":"Bone and gastric bypass surgery: effects of dietary calcium and vitamin D","volume":"12","author":"Goode","year":"2004","journal-title":"Obes Res"}],"container-title":["Endocrine Practice"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1530891X20351077?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1530891X20351077?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T22:08:28Z","timestamp":1761516508000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1530891X20351077"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2]]},"references-count":21,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2020,2]]}},"alternative-id":["S1530891X20351077"],"URL":"https:\/\/doi.org\/10.4158\/ep-2019-0325","relation":{},"ISSN":["1530-891X"],"issn-type":[{"value":"1530-891X","type":"print"}],"subject":[],"published":{"date-parts":[[2020,2]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Low Free (But Not Total) 25-Hydroxyvitamin D Levels in Subjects with Normocalcemic Hyperparathyroidism","name":"articletitle","label":"Article Title"},{"value":"Endocrine Practice","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.4158\/EP-2019-0325","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2020 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}