Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study
Sunlight-induced vitamin D, synthesis in the skin is the major source of vitamin D, but data on the relationship of sun-related behaviour with vitamin D and parathyroid hormone (PTH) levels are relatively sparse. We evaluated whether habitual sun exposure is associated with 25-hydroxyvitamin D (25[O...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Endocrinology |
| Online Access: | http://dx.doi.org/10.1155/2012/732636 |
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| author | Stefan Pilz Katharina Kienreich Daniel Stückler Andreas Meinitzer Andreas Tomaschitz |
| author_facet | Stefan Pilz Katharina Kienreich Daniel Stückler Andreas Meinitzer Andreas Tomaschitz |
| author_sort | Stefan Pilz |
| collection | DOAJ |
| description | Sunlight-induced vitamin D, synthesis in the skin is the major source of vitamin D, but data on the relationship of sun-related behaviour with vitamin D and parathyroid hormone (PTH) levels are relatively sparse. We evaluated whether habitual sun exposure is associated with 25-hydroxyvitamin D (25[OH]D) and PTH levels and whether there exist seasonal variations. We examined 111 hypertensive patients in Austria (latitude 47° N). Frequent sunbathing at home and outdoor sports were associated with higher 25(OH)D levels (P<0.05 for both). Red or blond scalp hair as a child, memory of sunburns, preferring sunbathing, frequent stays on the beach or in open-air pools, and solarium use were associated with lower PTH levels (P<0.05 for all). Multiple linear regression analyses including age, sex, and body mass index showed that sun exposure score was significantly associated with 25(OH)D (beta coefficient=0.27; P=0.004) and by trend with PTH (beta coefficient=−0.16; P=0.09). These associations were more prominent in summer in which 25(OH)D levels were significantly higher compared to winter. Translation of these findings into recommendations for the prevention and treatment of vitamin D deficiency remains a challenge for the future. |
| format | Article |
| id | doaj-art-2d332918b9f14264907e92811615ae74 |
| institution | Kabale University |
| issn | 1687-8337 1687-8345 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
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| series | International Journal of Endocrinology |
| spelling | doaj-art-2d332918b9f14264907e92811615ae742025-02-03T06:00:17ZengWileyInternational Journal of Endocrinology1687-83371687-83452012-01-01201210.1155/2012/732636732636Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) StudyStefan Pilz0Katharina Kienreich1Daniel Stückler2Andreas Meinitzer3Andreas Tomaschitz4Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, 8036 Graz, AustriaDivision of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, 8036 Graz, AustriaDivision of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, 8036 Graz, AustriaClinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, AustriaDivision of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, 8036 Graz, AustriaSunlight-induced vitamin D, synthesis in the skin is the major source of vitamin D, but data on the relationship of sun-related behaviour with vitamin D and parathyroid hormone (PTH) levels are relatively sparse. We evaluated whether habitual sun exposure is associated with 25-hydroxyvitamin D (25[OH]D) and PTH levels and whether there exist seasonal variations. We examined 111 hypertensive patients in Austria (latitude 47° N). Frequent sunbathing at home and outdoor sports were associated with higher 25(OH)D levels (P<0.05 for both). Red or blond scalp hair as a child, memory of sunburns, preferring sunbathing, frequent stays on the beach or in open-air pools, and solarium use were associated with lower PTH levels (P<0.05 for all). Multiple linear regression analyses including age, sex, and body mass index showed that sun exposure score was significantly associated with 25(OH)D (beta coefficient=0.27; P=0.004) and by trend with PTH (beta coefficient=−0.16; P=0.09). These associations were more prominent in summer in which 25(OH)D levels were significantly higher compared to winter. Translation of these findings into recommendations for the prevention and treatment of vitamin D deficiency remains a challenge for the future.http://dx.doi.org/10.1155/2012/732636 |
| spellingShingle | Stefan Pilz Katharina Kienreich Daniel Stückler Andreas Meinitzer Andreas Tomaschitz Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study International Journal of Endocrinology |
| title | Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study |
| title_full | Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study |
| title_fullStr | Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study |
| title_full_unstemmed | Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study |
| title_short | Associations of Sun Exposure with 25-Hydroxyvitamin D and Parathyroid Hormone Levels in a Cohort of Hypertensive Patients: The Graz Endocrine Causes of Hypertension (GECOH) Study |
| title_sort | associations of sun exposure with 25 hydroxyvitamin d and parathyroid hormone levels in a cohort of hypertensive patients the graz endocrine causes of hypertension gecoh study |
| url | http://dx.doi.org/10.1155/2012/732636 |
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