{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T16:36:36Z","timestamp":1790613396905,"version":"4.1.0"},"reference-count":44,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2013,12,1]],"date-time":"2013-12-01T00:00:00Z","timestamp":1385856000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/deed.en_GB"}],"content-domain":{"domain":["eje.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2013,12]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Vitamin D insufficiency may increase the risk for cardio metabolic disturbances in patients with primary hyperparathyroidism (PHPT).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To analyze the vitamin D status and indices of the metabolic syndrome in PHPT patients and the effect of vitamin D supplementation after parathyroid adenomectomy (PTX).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design and methods<\/jats:title>\n                    <jats:p>Double-blinded, randomized clinical trial (ClinicalTrials.gov Identifier: NCT00982722) performed at Karolinska University Hospital, Sweden, April 2008 to November 2011. One hundred and fifty consecutive patients with PHPT (119 women) were randomized after PTX, 75 to oral treatment with calcium carbonate 1000\u200amg daily and 75 to calcium carbonate 1000\u200amg and cholecalciferol 1600\u200aIU daily over 12 months. Changes in metabolic profile and ambulatory blood pressure (BP) were analyzed. Main outcome measures were changes in metabolic factors, BP, and body composition.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The 25-hydroxyvitamin D (25-OH-D)-level was &lt;50\u200anmol\/l in 76% of the patients before PTX. After PTX, glucose, insulin, and IGF1 decreased, while the 25-OH-D and the IGF-binding protein 1 increased and remained unchanged at follow-up after study medication. One year of vitamin D supplementation resulted in lower parathyroid hormone (PTH) (40 (34\u201352) vs 49 (38\u201366) ng\/l) and higher 25-OH-D (76 (65\u201393) vs 49 (40\u201362) nmol\/l;\n                      <jats:italic>P<\/jats:italic>\n                      &lt;0.05). Other laboratory parameters were stable compared with after PTX. Systolic BP decreased and total bone mineral content increased in both groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Except for the lowering of the PTH level, no additive effect of vitamin D supplementation was seen. However, PTX proved effective in reducing insulin resistance.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1530\/eje-13-0547","type":"journal-article","created":{"date-parts":[[2013,9,12]],"date-time":"2013-09-12T00:25:38Z","timestamp":1378945538000},"page":"795-804","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-1","source":"Crossref","is-referenced-by-count":49,"title":["Primary hyperparathyroidism and metabolic risk factors, impact of parathyroidectomy and vitamin D supplementation, and results of a randomized double-blind study"],"prefix":"10.1093","volume":"169","author":[{"given":"Sophie","family":"Norenstedt","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ylva","family":"Pernow","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kerstin","family":"Brismar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"S\u00e4\u00e4f","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayla","family":"Ekip","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fredrik","family":"Granath","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Zedenius","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Inga-Lena","family":"Nilsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","reference":[{"issue":"6","key":"1_17069291","doi-asserted-by":"publisher","first-page":"476","DOI":"10.1046\/j.1365-2796.2002.00984.x","volume":"251","author":"Hedb\u00a0\u00a0ck","year":"2002","journal-title":"Journal of internal medicine","ISSN":"https:\/\/id.crossref.org\/issn\/0954-6820","issn-type":"print"},{"key":"2_29293733","first-page":"N68","volume":"17","year":"2002","journal-title":"Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research","ISSN":"https:\/\/id.crossref.org\/issn\/0884-0431","issn-type":"print"},{"issue":"7","key":"3_39906100","doi-asserted-by":"publisher","first-page":"2112","DOI":"10.1210\/jc.2011-0238","volume":"96","year":"2011","journal-title":"Journal of Clinical Endocrinology &amp; 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