{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T15:19:37Z","timestamp":1778771977652,"version":"3.51.4"},"reference-count":38,"publisher":"FapUNIFESP (SciELO)","issue":"12","license":[{"start":{"date-parts":[[2019,12,1]],"date-time":"2019-12-01T00:00:00Z","timestamp":1575158400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,12,1]],"date-time":"2019-12-01T00:00:00Z","timestamp":1575158400000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,12,1]],"date-time":"2019-12-01T00:00:00Z","timestamp":1575158400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq. Neuro-Psiquiatr."],"abstract":"<jats:p>ABSTRACT Vitamin D is a pleiotropic steroid hormone that modulates the autonomic balance. Its deficiency has been described as an environmental risk factor for multiple sclerosis (MS). The aim of this study was to investigate the serum levels of vitamin D, vitamin D binding protein (VDBP) and vitamin D receptors (VDR) and to evaluate cardiac dysautonomia in MS patients due to bidirectional interaction between vitamin D and the autonomic nervous system.  Methods: The current cross-sectional study was conducted on 26 patients with relapsing-remitting MS and on 24 healthy controls. Twenty-four-hour ambulatory blood pressure variability (BPV) was calculated and the participants were evaluated for orthostatic hypotension and supine hypertension. Serum levels of vitamin D, VDBP and VDR were measured.  Results: The mean serum vitamin D level was significantly lower in MS patients than in controls (p = 0.044); however there was no significant difference in terms of VDR and VDBP levels between the groups. Supine hypertension and orthostatic hypotension were significant and the 24-hour systolic BPV was significantly decreased in patients with MS (p &lt; 0.05) compared to controls. No correlation was found between vitamin D, VDBP and VDR with supine hypertension, orthostatic hypotension and systolic BPV values (p &gt; 0.05). Also, there was a negative correlation between VDBP and the EDSS (p = 0.039, r = \u22120.406).  Conclusion: There was no correlation between orthostatic hypotension, supine hypertension and systolic BPV values and serum vitamin D, VDBP and VDR in MS patients. Future prospective studies with large number of patients may help us to better understand the relationship between vitamin D and the autonomic nervous system.<\/jats:p>","DOI":"10.1590\/0004-282x20190182","type":"journal-article","created":{"date-parts":[[2020,1,10]],"date-time":"2020-01-10T14:25:33Z","timestamp":1578666333000},"page":"848-854","source":"Crossref","is-referenced-by-count":11,"title":["Vitamin D, vitamin D binding protein, vitamin D receptor levels and cardiac dysautonomia in patients with multiple sclerosis: a cross-sectional study"],"prefix":"10.1590","volume":"77","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1818-1578","authenticated-orcid":false,"given":"T\u00fclin","family":"Akt\u00fcrk","sequence":"first","affiliation":[{"name":"Bozok University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2796-899X","authenticated-orcid":false,"given":"Ya\u015far","family":"Turan","sequence":"additional","affiliation":[{"name":"Bozok University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7567-9244","authenticated-orcid":false,"given":"Nermin","family":"Tanik","sequence":"additional","affiliation":[{"name":"Bozok University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9291-4197","authenticated-orcid":false,"given":"M\u00fcjgan Ercan","family":"Karada\u011f","sequence":"additional","affiliation":[{"name":"Harran University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1480-0562","authenticated-orcid":false,"given":"Hikmet","family":"Sacmaci","sequence":"additional","affiliation":[{"name":"Bozok University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2441-0624","authenticated-orcid":false,"given":"Levent Ertugrul","family":"Inan","sequence":"additional","affiliation":[{"name":"Bozok University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2019,12]]},"reference":[{"issue":"4","key":"ref1","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1016\/j.pjnns.2016.04.010","article-title":"Bone metabolism and vitamin D status in patients with multiple sclerosis","volume":"50","author":"K\u0119pczy\u0144ska K","year":"2016","journal-title":"Neurol Neurochir Pol"},{"issue":"10","key":"ref2","doi-asserted-by":"crossref","first-page":"8251","DOI":"10.3390\/nu7105392","article-title":"Mechanisms underlying the regulation of innate and adaptive immunity by vitamin D","volume":"7","author":"Wei 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