{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T15:49:42Z","timestamp":1740152982091,"version":"3.37.3"},"reference-count":23,"publisher":"Wiley","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["International Journal of Endocrinology"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p><jats:italic>Purpose<\/jats:italic>. In the present study, we aimed to investigate postural change of PTH in normal individuals and in patients with primary hyperparathyroidism (PHPT).<jats:italic>Methods<\/jats:italic>. Twenty-two patients with PHPT and nine healthy controls were enrolled. Following 12\u2009h of fast, patients stayed in recumbent position for an hour and PTH and total Ca measurements were performed at the 45th and 60th minutes of resting. Afterwards, the patients resumed an upright posture for an hour and again blood samples were taken at the 45th and 60th minutes of standing.<jats:italic>Results<\/jats:italic>. In the PHPT group, mean PTH was calculated as 153.9\u2009pg\/mL in the recumbent position while it was 206.3 during upright position (\u0394 change was 47.7) (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.001<\/mml:mn><\/mml:math>). In the control group mean serum PTH was measured as 41.2\u2009pg\/mL in the recumbent position while it was 44.8\u2009pg\/mL in the upright position (\u0394 change was 1.7) (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>P<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>0.11<\/mml:mn><\/mml:math>). In both groups, serum Ca was higher in the upright position compared to the recumbent position (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.001<\/mml:mn><\/mml:math>).<jats:italic>Conclusion<\/jats:italic>. Postural change of serum PTH is significant only in PHPT group. Postural PTH test may give a clue to the clinician when the diagnosis of PHPT is equivocal.<\/jats:p>","DOI":"10.1155\/2014\/628010","type":"journal-article","created":{"date-parts":[[2014,9,1]],"date-time":"2014-09-01T21:05:04Z","timestamp":1409605504000},"page":"1-5","source":"Crossref","is-referenced-by-count":1,"title":["Evaluation of Postural Parathyroid Hormone Change in Patients with Primary Hyperparathyroidism"],"prefix":"10.1155","volume":"2014","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2081-2885","authenticated-orcid":true,"given":"Cevdet","family":"Aydin","sequence":"first","affiliation":[{"name":"Endocrinology and Metabolism Department, Ataturk Education and Research Hospital, Yildirim Beyazit University, 06800 Ankara, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sefika Burcak","family":"Polat","sequence":"additional","affiliation":[{"name":"Endocrinology and Metabolism Department, Ataturk Education and Research Hospital, Yildirim Beyazit University, 06800 Ankara, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ahmet","family":"Dirikoc","sequence":"additional","affiliation":[{"name":"Endocrinology and Metabolism Department, Ataturk Education and Research Hospital, Yildirim Beyazit University, 06800 Ankara, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Berna","family":"Ogmen","sequence":"additional","affiliation":[{"name":"Endocrinology and Metabolism Department, Ataturk Education and Research Hospital, Yildirim Beyazit University, 06800 Ankara, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Neslihan","family":"Cuhaci","sequence":"additional","affiliation":[{"name":"Endocrinology and Metabolism Department, Ataturk Education and Research Hospital, Yildirim Beyazit University, 06800 Ankara, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reyhan","family":"Ersoy","sequence":"additional","affiliation":[{"name":"Endocrinology 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