{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T11:01:32Z","timestamp":1791889292356,"version":"4.3.4"},"reference-count":40,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2012,7,23]],"date-time":"2012-07-23T00:00:00Z","timestamp":1343001600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Clin Appl Thromb Hemost"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Vitamin D deficiency is associated with cardiovascular disease such as coronary artery disease, heart failure, and hypertension. Vitamin D deficiency activates the renin\u2013angiotensin\u2013aldosterone system, which affects the cardiovascular system. For this reason, it could be suggested that there is a relationship between vitamin D deficiency and atrial fibrillation (AF). In our study, we compared 25-hydroxyvitamin D (25-OHD) levels between nonvalvular AF, valvular AF, and control groups in sinus rhythm.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Method:<\/jats:title>\n                    <jats:p>A total of 102 patients with nonvalvular chronic AF without any other cardiovascular disease (mean age 62.51 \u00b1 5.88; group I) and 96 patients with AF, which is associated with mitral valve disease (mean age 61.51 \u00b1 5; group II) were included in our study. Of all, 100 age-matched healthy people with sinus rhythm were accepted as control groups (mean age 61.35 \u00b1 5.44). Routine biochemical parameters, 25-OHD and parathormone levels were performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Baseline characteristics of the study groups were comparable. Group I patients had a lower vitamin D level than group II and the control group (6.51 \u00b1 4.89, 9.24 \u00b1 7.39, and 11.18 \u00b1 6.98 ng\/mL, P &lt; .001, respectively). In groups I and II, the patients\u2019 left atrium diameter and systolic pulmonary artery pressure are higher than the control group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>As a result, our study revealed a relationship between vitamin D deficiency and nonvalvular AF.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1076029612453762","type":"journal-article","created":{"date-parts":[[2012,7,23]],"date-time":"2012-07-23T21:43:58Z","timestamp":1343079838000},"page":"98-103","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":64,"title":["The Effects of Vitamin D Deficiency on Atrial Fibrillation"],"prefix":"10.1177","volume":"20","author":[{"given":"Mehmet","family":"Demir","sequence":"first","affiliation":[{"name":"Department of Cardiology, Bursa Y\u00fcksek \u0130htisas Education and 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