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Int. J. Mol. Sci. 2015, 16(6), 13043-13064; doi:10.3390/ijms160613043

A Proposed Molecular Mechanism of High-Dose Vitamin D3 Supplementation in Prevention and Treatment of Preeclampsia

1
Department of Obstetrics & Gynecology, the Sw. Wojciech Specialist Hospital, Independent Public Complex of Integrated Health Care Units in Gdansk, 50 Al. Jana Pawła II St., Gdansk 80-462, Poland
2
Department of Medical Chemistry, Medical University of Gdansk, 1 Debinki St., Gdansk 80-211, Poland
3
Department of Dermatology, University of Alabama at Birmingham, VA Medical Center, Birmingham, AL 35294, USA
4
Department of Obstetrics & Gynecology, Medical University of Gdansk, 1A Kliniczna St., Gdansk 80-402, Poland
5
Department of Histology, Medical University of Gdansk, 1 Debinki St., Gdansk 80-211, Poland
6
Department of Anesthesiology & Intensive Care, Medical University of Gdansk, 1 Debinki St., Gdansk 80-211, Poland
7
School of Chemistry and Biochemistry, the University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
*
Authors to whom correspondence should be addressed.
Academic Editor: Ritva Tikkanen
Received: 12 February 2015 / Revised: 31 May 2015 / Accepted: 1 June 2015 / Published: 9 June 2015
(This article belongs to the Section Biochemistry, Molecular and Cellular Biology)
View Full-Text   |   Download PDF [1743 KB, uploaded 9 June 2015]   |  

Abstract

A randomized prospective clinical study performed on a group of 74 pregnant women (43 presenting with severe preeclampsia) proved that urinary levels of 15-F2t-isoprostane were significantly higher in preeclamptic patients relative to the control (3.05 vs. 2.00 ng/mg creatinine). Surprisingly enough, plasma levels of 25-hydroxyvitamin D3 in both study groups were below the clinical reference range with no significant difference between the groups. In vitro study performed on isolated placental mitochondria and placental cell line showed that suicidal self-oxidation of cytochrome P450scc may lead to structural disintegration of heme, potentially contributing to enhancement of oxidative stress phenomena in the course of preeclampsia. As placental cytochrome P450scc pleiotropic activity is implicated in the metabolism of free radical mediated arachidonic acid derivatives as well as multiple Vitamin D3 hydroxylations and progesterone synthesis, we propose that Vitamin D3 might act as a competitive inhibitor of placental cytochrome P450scc preventing the production of lipid peroxides or excess progesterone synthesis, both of which may contribute to the etiopathogenesis of preeclampsia. The proposed molecular mechanism is in accord with the preliminary clinical observations on the surprisingly high efficacy of high-dose Vitamin D3 supplementation in prevention and treatment of preeclampsia. View Full-Text
Keywords: preeclampsia; isoprostanes; arachidonic acid hydroperoxide; vitamin D3; placenta preeclampsia; isoprostanes; arachidonic acid hydroperoxide; vitamin D3; placenta
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zabul, P.; Wozniak, M.; Slominski, A.T.; Preis, K.; Gorska, M.; Korozan, M.; Wieruszewski, J.; Zmijewski, M.A.; Zabul, E.; Tuckey, R.; Kuban-Jankowska, A.; Mickiewicz, W.; Knap, N. A Proposed Molecular Mechanism of High-Dose Vitamin D3 Supplementation in Prevention and Treatment of Preeclampsia. Int. J. Mol. Sci. 2015, 16, 13043-13064.

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