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Sotomayor CG, Minović I, Eggersdorfer ML, Riphagen IJ, de Borst MH, Dekker LH, Nolte IM, Frank J, van Zon SK, Reijneveld SA, van der Molen JC, Vos MJ, Kootstra-Ros JE, Rodrigo R, Kema IP, Navis GJ, Bakker SJ. Duality of Tocopherol Isoforms and Novel Associations with Vitamins Involved in One-Carbon Metabolism: Results from an Elderly Sample of the LifeLines Cohort Study. Nutrients 2020; 12:nu12020580. [PMID: 32102191 PMCID: PMC7071362 DOI: 10.3390/nu12020580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 11/16/2022] Open
Abstract
Whether the affinity of serum vitamin E with total lipids hampers the appropriate assessment of its association with age-related risk factors has not been investigated in epidemiological studies. We aimed to compare linear regression-derived coefficients of the association of non-indexed and total lipids-indexed vitamin E isoforms with clinical and laboratory characteristics pertaining to the lipid, metabolic syndrome, and one-carbon metabolism biological domains. We studied 1429 elderly subjects (non-vitamin supplement users, 60-75 years old, with low and high socioeconomic status) from the population-based LifeLines Cohort and Biobank Study. We found that the associations of tocopherol isoforms with lipids were inverted in total lipids-indexed analyses, which may be indicative of overcorrection. Irrespective of the methods of standardization, we consistently found positive associations of α-tocopherol with vitamins of the one-carbon metabolism pathway and inverse associations with characteristics related to glucose metabolism. The associations of γ-tocopherol were often opposite to those of α-tocopherol. These data suggest that tocopherol isoforms and one-carbon metabolism are related, with beneficial and adverse associations for α-tocopherol and γ-tocopherol, respectively. Whether tocopherol isoforms, or their interplay, truly affect the one-carbon metabolism pathway remains to be further studied.
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Affiliation(s)
- Camilo G. Sotomayor
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (M.L.E.); (M.H.d.B.); (L.H.D.); (G.J.N.)
- Correspondence: ; Tel.: +31-050-361-0881
| | - Isidor Minović
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (I.M.); (I.J.R.); (J.C.v.d.M.); (M.J.V.); (J.E.K.-R.); (I.P.K.)
| | - Manfred L. Eggersdorfer
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (M.L.E.); (M.H.d.B.); (L.H.D.); (G.J.N.)
| | - Ineke J. Riphagen
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (I.M.); (I.J.R.); (J.C.v.d.M.); (M.J.V.); (J.E.K.-R.); (I.P.K.)
| | - Martin H. de Borst
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (M.L.E.); (M.H.d.B.); (L.H.D.); (G.J.N.)
| | - Louise H. Dekker
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (M.L.E.); (M.H.d.B.); (L.H.D.); (G.J.N.)
| | - Ilja M. Nolte
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands;
| | - Jan Frank
- Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany;
| | - Sander K.R. van Zon
- Department of Health Sciences, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands (S.A.R.)
| | - Sijmen A. Reijneveld
- Department of Health Sciences, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands (S.A.R.)
| | - Jan C. van der Molen
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (I.M.); (I.J.R.); (J.C.v.d.M.); (M.J.V.); (J.E.K.-R.); (I.P.K.)
| | - Michel J. Vos
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (I.M.); (I.J.R.); (J.C.v.d.M.); (M.J.V.); (J.E.K.-R.); (I.P.K.)
| | - Jenny E. Kootstra-Ros
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (I.M.); (I.J.R.); (J.C.v.d.M.); (M.J.V.); (J.E.K.-R.); (I.P.K.)
| | - Ramón Rodrigo
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago CP 8380453, Chile;
| | - Ido P. Kema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (I.M.); (I.J.R.); (J.C.v.d.M.); (M.J.V.); (J.E.K.-R.); (I.P.K.)
| | - Gerjan J. Navis
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (M.L.E.); (M.H.d.B.); (L.H.D.); (G.J.N.)
| | - Stephan J.L. Bakker
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands; (M.L.E.); (M.H.d.B.); (L.H.D.); (G.J.N.)
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