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Vogt S, Wahl S, Kettunen J, Breitner S, Kastenmüller G, Gieger C, Suhre K, Waldenberger M, Kratzsch J, Perola M, Salomaa V, Blankenberg S, Zeller T, Soininen P, Kangas AJ, Peters A, Grallert H, Ala-Korpela M, Thorand B. Characterization of the metabolic profile associated with serum 25-hydroxyvitamin D: a cross-sectional analysis in population-based data. Int J Epidemiol 2016; 45:1469-1481. [PMID: 27605587 PMCID: PMC5100623 DOI: 10.1093/ije/dyw222] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Numerous observational studies have observed associations between vitamin D deficiency and cardiometabolic diseases, but these findings might be confounded by obesity. A characterization of the metabolic profile associated with serum 25-hydroxyvitamin D [25(OH)D] levels, in general and stratified by abdominal obesity, may help to untangle the relationship between vitamin D, obesity and cardiometabolic health. METHODS Serum metabolomics measurements were obtained from a nuclear magnetic resonance spectroscopy (NMR)- and a mass spectrometry (MS)-based platform. The discovery was conducted in 1726 participants of the population-based KORA-F4 study, in which the associations of the concentrations of 415 metabolites with 25(OH)D levels were assessed in linear models. The results were replicated in 6759 participants (NMR) and 609 (MS) participants, respectively, of the population-based FINRISK 1997 study. RESULTS Mean [standard deviation (SD)] 25(OH)D levels were 15.2 (7.5) ng/ml in KORA F4 and 13.8 (5.9) ng/ml in FINRISK 1997; 37 metabolites were associated with 25(OH)D in KORA F4 at P < 0.05/415. Of these, 30 associations were replicated in FINRISK 1997 at P < 0.05/37. Among these were constituents of (very) large very-low-density lipoprotein and small low-density lipoprotein subclasses and related measures like serum triglycerides as well as fatty acids and measures reflecting the degree of fatty acid saturation. The observed associations were independent of waist circumference and generally similar in abdominally obese and non-obese participants. CONCLUSIONS Independently of abdominal obesity, higher 25(OH)D levels were associated with a metabolite profile characterized by lower concentrations of atherogenic lipids and a higher degree of fatty acid polyunsaturation. These results indicate that the relationship between vitamin D deficiency and cardiometabolic diseases is unlikely to merely reflect obesity-related pathomechanisms.
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Affiliation(s)
- Susanne Vogt
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,German Center for Cardiovascular Research (DZHK e.V.), Munich Heart Alliance, Munich, Germany
| | - Simone Wahl
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,German Center for Diabetes Research (DZD e.V.), München-Neuherberg, Germany
| | - Johannes Kettunen
- Computational Medicine, University of Oulu and Biocenter Oulu, Oulu, Finland.,NMR Metabolomics Laboratory, University of Eastern Finland, Kuopio, Finland.,National Institute for Health and Welfare, Helsinki, Finland
| | - Susanne Breitner
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Christian Gieger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,German Center for Diabetes Research (DZD e.V.), München-Neuherberg, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Doha, Qatar
| | - Melanie Waldenberger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Jürgen Kratzsch
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Leipzig, Leipzig, Germany
| | - Markus Perola
- National Institute for Health and Welfare, Helsinki, Finland.,Institute for Molecular Medicine (FIMM) and Diabetes and Obesity Research Program, University of Helsinki, Helsinki, Finland.,Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Veikko Salomaa
- National Institute for Health and Welfare, Helsinki, Finland
| | - Stefan Blankenberg
- University Heart Center Hamburg, Clinic of General and Interventional Cardiology, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK e.V.), Partner Site Hamburg/Lübeck/Kiel, Hamburg, Germany and
| | - Tanja Zeller
- University Heart Center Hamburg, Clinic of General and Interventional Cardiology, Hamburg, Germany.,German Center for Cardiovascular Research (DZHK e.V.), Partner Site Hamburg/Lübeck/Kiel, Hamburg, Germany and
| | - Pasi Soininen
- Computational Medicine, University of Oulu and Biocenter Oulu, Oulu, Finland.,NMR Metabolomics Laboratory, University of Eastern Finland, Kuopio, Finland
| | - Antti J Kangas
- Computational Medicine, University of Oulu and Biocenter Oulu, Oulu, Finland
| | - Annette Peters
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,German Center for Cardiovascular Research (DZHK e.V.), Munich Heart Alliance, Munich, Germany.,German Center for Diabetes Research (DZD e.V.), München-Neuherberg, Germany
| | - Harald Grallert
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,German Center for Diabetes Research (DZD e.V.), München-Neuherberg, Germany
| | - Mika Ala-Korpela
- Computational Medicine, University of Oulu and Biocenter Oulu, Oulu, Finland.,NMR Metabolomics Laboratory, University of Eastern Finland, Kuopio, Finland.,Computational Medicine, School of Social and Community Medicine, University of Bristol and Medical Research Council Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
| | - Barbara Thorand
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany, .,Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
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102
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Lin J, Lu M, Shao WQ, Chen ZY, Zhu WW, Lu L, Jia HL, Cai D, Qin LX, Chen JH. Osteopontin Deficiency Alters Biliary Homeostasis and Protects against Gallstone Formation. Sci Rep 2016; 6:30215. [PMID: 27484115 PMCID: PMC4971489 DOI: 10.1038/srep30215] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 06/30/2016] [Indexed: 01/04/2023] Open
Abstract
The precipitation of excess biliary cholesterol as solid crystals is a prerequisite for cholesterol gallstone formation, which occurs due to disturbed biliary homeostasis. Biliary homeostasis is regulated by an elaborate network of genes in hepatocytes. If unmanaged, the cholesterol crystals will aggregate, fuse and form gallstones. We have previously observed that the levels of osteopontin (OPN) in bile and gallbladder were reduced in gallstone patients. However, the role and mechanism for hepatic OPN in cholesterol gallstone formation is undetermined. In this study, we found that the expression of hepatic OPN was increased in gallstone patients compared with gallstone-free counterparts. Then, we observed that OPN-deficient mice were less vulnerable to cholesterol gallstone formation than wild type mice. Further mechanistic studies revealed that this protective effect was associated with alterations of bile composition and was caused by the increased hepatic CYP7A1 expression and the reduced expression of hepatic SHP, ATP8B1, SR-B1 and SREBP-2. Finally, the correlations between the expression of hepatic OPN and the expression of these hepatic genes were validated in gallstone patients. Taken together, our findings reveal that hepatic OPN contributes to cholesterol gallstone formation by regulating biliary metabolism and might be developed as a therapeutic target for gallstone treatments.
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Affiliation(s)
- Jing Lin
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Ming Lu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Wei-Qing Shao
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Zong-You Chen
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Wen-Wei Zhu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Lu Lu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Hu-Liang Jia
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Duan Cai
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Lun-Xiu Qin
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jin-Hong Chen
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
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