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Serum active 1,25(OH)2D, but not inactive 25(OH)D vitamin D levels are associated with cardiometabolic and cardiovascular disease risk in psoriasis.

Authors
  • Playford, Martin P1
  • Dey, Amit K1
  • Zierold, Claudia2
  • Joshi, Aditya A1
  • Blocki, Frank2
  • Bonelli, Fabrizio2
  • Rodante, Justin A1
  • Harrington, Charlotte L1
  • Rivers, Joshua P1
  • Elnabawi, Youssef A1
  • Chen, Marcus Y1
  • Ahlman, Mark A1
  • Teague, Heather L1
  • Mehta, Nehal N3
  • 1 Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
  • 2 DIaSorin Inc, 1951 Northwestern Avenue, Stillwater, MN, USA.
  • 3 Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA. Electronic address: [email protected]
Type
Published Article
Journal
Atherosclerosis
Publication Date
Aug 17, 2019
Volume
289
Pages
44–50
Identifiers
DOI: 10.1016/j.atherosclerosis.2019.08.006
PMID: 31450013
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Vitamin D exists as an inactive 25-hydroxyvitamin D (25(OH)D) in the bloodstream, which is converted to active 1,25-dihydroxyvitaminD (1,25(OH)2D) in target tissues. Cohort studies reporting cardiovascular disease among individuals with low vitamin D are inconsistent and solely measure 25(OH)D. Psoriasis, a chronic inflammatory disease, is a vitamin D deficient state and is associated with increased cardiovascular disease risk. While serum 25(OH)D is routinely measured, we hypothesized that measurement of 1,25(OH)2D in psoriasis may perform better than 25(OH)D in capturing cardiovascular risk. Consecutive psoriasis patients (N = 122) at baseline underwent FDG PET/CT and CCTA scans to measure visceral adipose volume, aortic vascular uptake of FDG, and coronary plaque burden respectively. Blood levels of both 1,25(OH)2D and 25(OH)D were measured by chemiluminescence (LIAISON XL DIaSorin, Stillwater, MN). The psoriasis cohort was middle-aged (mean ± SD: 49.6 ± 13.0), predominantly male (n = 71, 58%), in majority Caucasians (n = 98, 80%), and had moderate-to-severe skin disease [psoriasis area severity index score, PASI score, med. 5.5 (3.2-10.7)], with almost one-fourth of the cohort on biologic psoriasis therapy for skin disease management (n = 32, 27%) at baseline. Interestingly, serum levels of 1,25(OH)2D but not 25(OH)D were found to be inversely associated with visceral adipose, a marker of cardiometabolic risk in fully adjusted models (β = - 0.43, p = 0.026 and β = -0.26 p = 0.13). Similarly, we found an inverse relationship between 1,25(OH)2D, but not 25(OH)D, and aortic vascular uptake of FDG independent of traditional risk factors (β = -0.19, p = 0.01). Finally, we found that serum 1,25(OH)2D, but not 25(OH)D, was inversely associated with non-calcified coronary plaque burden, as measured by CCTA independent of traditional risk factors (β = -0.18, p = 0.03). In conclusion, we demonstrate that low 1,25(OH)2D levels were associated with visceral adipose volume, vascular uptake of FDG and coronary plaque burden independent of traditional risk factors, suggesting that 1,25(OH)2D may better capture the cardiometabolic risk associated with vitamin D deficient states. Published by Elsevier B.V.

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