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Weinisch P, Raffler J, Römisch-Margl W, Arnold M, Mohney RP, Rist MJ, Prehn C, Skurk T, Hauner H, Daniel H, Suhre K, Kastenmüller G. The HuMet Repository: Watching human metabolism at work. bioRxiv 2023:2023.08.08.550079. [PMID: 37609175 PMCID: PMC10441358 DOI: 10.1101/2023.08.08.550079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
The human metabolism constantly responds to stimuli such as food intake, fasting, exercise, and stress, triggering adaptive biochemical processes across multiple metabolic pathways. To understand the role of these processes and disruptions thereof in health and disease, detailed documentation of healthy metabolic responses is needed but still scarce on a time-resolved metabolome-wide level. Here, we present the HuMet Repository, a web-based resource for exploring dynamic metabolic responses to six physiological challenges (exercise, 36 h fasting, oral glucose and lipid loads, mixed meal, cold stress) in healthy subjects. For building this resource, we integrated existing and newly derived metabolomics data measured in blood, urine, and breath samples of 15 young healthy men at up to 56 time points during the six highly standardized challenge tests conducted over four days. The data comprise 1.1 million data points acquired on multiple platforms with temporal profiles of 2,656 metabolites from a broad range of biochemical pathways. By embedding the dataset into an interactive web application, we enable users to easily access, search, filter, analyze, and visualize the time-resolved metabolomic readouts and derived results. Users can put metabolites into their larger context by identifying metabolites with similar trajectories or by visualizing metabolites within holistic metabolic networks to pinpoint pathways of interest. In three showcases, we outline the value of the repository for gaining biological insights and generating hypotheses by analyzing the wash-out of dietary markers, the complementarity of metabolomics platforms in dynamic versus cross-sectional data, and similarities and differences in systemic metabolic responses across challenges. With its comprehensive collection of time-resolved metabolomics data, the HuMet Repository, freely accessible at https://humet.org/, is a reference for normal, healthy responses to metabolic challenges in young males. It will enable researchers with and without computational expertise, to flexibly query the data for their own research into the dynamics of human metabolism.
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Affiliation(s)
- Patrick Weinisch
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Johannes Raffler
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- Digital Medicine, University Hospital of Augsburg, Augsburg, Germany
| | - Werner Römisch-Margl
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Matthias Arnold
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
| | | | - Manuela J. Rist
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Cornelia Prehn
- Metabolomics and Proteomics Core, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Thomas Skurk
- ZIEL Institute for Food and Health, Core Facility Human Studies, Technical University of Munich, Freising, Germany
- Else Kröner Fresenius Center of Nutritional Medicine, Department of Food and Nutrition, Technical University of Munich, Freising, Germany
| | - Hans Hauner
- Else Kröner Fresenius Center of Nutritional Medicine, Department of Food and Nutrition, Technical University of Munich, Freising, Germany
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Hannelore Daniel
- Department of Food and Nutrition, Technical University of Munich, Freising, Germany
| | - Karsten Suhre
- Department of Biophysics and Physiology, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Gabi Kastenmüller
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
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Weinisch P, Fiamoncini J, Schranner D, Raffler J, Skurk T, Rist MJ, Römisch-Margl W, Prehn C, Adamski J, Hauner H, Daniel H, Suhre K, Kastenmüller G. Dynamic patterns of postprandial metabolic responses to three dietary challenges. Front Nutr 2022; 9:933526. [PMID: 36211489 PMCID: PMC9540193 DOI: 10.3389/fnut.2022.933526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Food intake triggers extensive changes in the blood metabolome. The kinetics of these changes depend on meal composition and on intrinsic, health-related characteristics of each individual, making the assessment of changes in the postprandial metabolome an opportunity to assess someone's metabolic status. To enable the usage of dietary challenges as diagnostic tools, profound knowledge about changes that occur in the postprandial period in healthy individuals is needed. In this study, we characterize the time-resolved changes in plasma levels of 634 metabolites in response to an oral glucose tolerance test (OGTT), an oral lipid tolerance test (OLTT), and a mixed meal (SLD) in healthy young males (n = 15). Metabolite levels for samples taken at different time points (20 per individual) during the challenges were available from targeted (132 metabolites) and non-targeted (502 metabolites) metabolomics. Almost half of the profiled metabolites (n = 308) showed a significant change in at least one challenge, thereof 111 metabolites responded exclusively to one particular challenge. Examples include azelate, which is linked to ω-oxidation and increased only in OLTT, and a fibrinogen cleavage peptide that has been linked to a higher risk of cardiovascular events in diabetes patients and increased only in OGTT, making its postprandial dynamics a potential target for risk management. A pool of 89 metabolites changed their plasma levels during all three challenges and represents the core postprandial response to food intake regardless of macronutrient composition. We used fuzzy c-means clustering to group these metabolites into eight clusters based on commonalities of their dynamic response patterns, with each cluster following one of four primary response patterns: (i) “decrease-increase” (valley-like) with fatty acids and acylcarnitines indicating the suppression of lipolysis, (ii) “increase-decrease” (mountain-like) including a cluster of conjugated bile acids and the glucose/insulin cluster, (iii) “steady decrease” with metabolites reflecting a carryover from meals prior to the study, and (iv) “mixed” decreasing after the glucose challenge and increasing otherwise. Despite the small number of subjects, the diversity of the challenges and the wealth of metabolomic data make this study an important step toward the characterization of postprandial responses and the identification of markers of metabolic processes regulated by food intake.
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Affiliation(s)
- Patrick Weinisch
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Jarlei Fiamoncini
- Food Research Center – FoRC, Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Daniela Schranner
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Johannes Raffler
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Digital Medicine, University Hospital of Augsburg, Augsburg, Germany
| | - Thomas Skurk
- Core Facility Human Studies, ZIEL Institute for Food and Health, Technical University of Munich, Freising, Germany
- Else Kröner Fresenius Center for Nutritional Medicine, School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Manuela J. Rist
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Werner Römisch-Margl
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Cornelia Prehn
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, Neuherberg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Hans Hauner
- Else Kröner Fresenius Center for Nutritional Medicine, School of Life Sciences, Technical University of Munich, Freising, Germany
- Institute for Nutritional Medicine, School of Medicine, Technical University of Munich, Munich, Germany
| | - Hannelore Daniel
- Department of Food and Nutrition, Technical University of Munich, Freising, Germany
| | - Karsten Suhre
- Department of Biophysics and Physiology, Weill Cornell Medicine—Qatar, Doha, Qatar
| | - Gabi Kastenmüller
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
- *Correspondence: Gabi Kastenmüller
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Gehlert S, Weinisch P, Römisch-Margl W, Jaspers R, Artati A, Adamski J, Dyar KA, Aussieker T, Jacko D, Bloch W, Wackerhage H, Kastenmueller G. The Skeletal Muscle Metabolome Reflects Resistance Exercise-induced Skeletal Muscle Adaptation. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000881728.27407.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ott R, Pawlow X, Weiß A, Hofelich A, Herbst M, Hummel N, Prehn C, Adamski J, Römisch-Margl W, Kastenmüller G, Ziegler AG, Hummel S. Intergenerational Metabolomic Analysis of Mothers with a History of Gestational Diabetes Mellitus and Their Offspring. Int J Mol Sci 2020; 21:E9647. [PMID: 33348910 PMCID: PMC7766614 DOI: 10.3390/ijms21249647] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 12/05/2022] Open
Abstract
Shared metabolomic patterns at delivery have been suggested to underlie the mother-to-child transmission of adverse metabolic health. This study aimed to investigate whether mothers with gestational diabetes mellitus (GDM) and their offspring show similar metabolomic patterns several years postpartum. Targeted metabolomics (including 137 metabolites) was performed in plasma samples obtained during an oral glucose tolerance test from 48 mothers with GDM and their offspring at a cross-sectional study visit 8 years after delivery. Partial Pearson's correlations between the area under the curve (AUC) of maternal and offspring metabolites were calculated, yielding so-called Gaussian graphical models. Spearman's correlations were applied to investigate correlations of body mass index (BMI), Matsuda insulin sensitivity index (ISI-M), dietary intake, and physical activity between generations, and correlations of metabolite AUCs with lifestyle variables. This study revealed that BMI, ISI-M, and the AUC of six metabolites (carnitine, taurine, proline, SM(-OH) C14:1, creatinine, and PC ae C34:3) were significantly correlated between mothers and offspring several years postpartum. Intergenerational metabolite correlations were independent of shared BMI, ISI-M, age, sex, and all other metabolites. Furthermore, creatinine was correlated with physical activity in mothers. This study suggests that there is long-term metabolic programming in the offspring of mothers with GDM and informs us about targets that could be addressed by future intervention studies.
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Affiliation(s)
- Raffael Ott
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
| | - Xenia Pawlow
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
| | - Andreas Weiß
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
| | - Anna Hofelich
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
| | - Melanie Herbst
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
| | - Nadine Hummel
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
| | - Cornelia Prehn
- Research Unit Molecular Endocrinology and Metabolism, Genome Analysis Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany; (C.P.); (J.A.)
| | - Jerzy Adamski
- Research Unit Molecular Endocrinology and Metabolism, Genome Analysis Center, Helmholtz Zentrum München, 85764 Neuherberg, Germany; (C.P.); (J.A.)
- Chair for Experimental Genetics, Technical University of Munich, 85354 Freising-Weihenstephan, Germany
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- German Center for Diabetes Research (DZD), München-Neuherberg, 85764 Neuherberg, Germany; (W.R.-M.); (G.K.)
| | - Werner Römisch-Margl
- German Center for Diabetes Research (DZD), München-Neuherberg, 85764 Neuherberg, Germany; (W.R.-M.); (G.K.)
- Institute of Computational Biology, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Gabi Kastenmüller
- German Center for Diabetes Research (DZD), München-Neuherberg, 85764 Neuherberg, Germany; (W.R.-M.); (G.K.)
- Institute of Computational Biology, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Anette-G. Ziegler
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, 85764 Neuherberg, Germany; (W.R.-M.); (G.K.)
| | - Sandra Hummel
- Institute of Diabetes Research, Helmholtz Zentrum München, and Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, 85764 Neuherberg, Germany; (R.O.); (X.P.); (A.W.); (A.H.); (M.H.); (N.H.); (A.-G.Z.)
- Forschergruppe Diabetes e.V., 85764 Neuherberg, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, 85764 Neuherberg, Germany; (W.R.-M.); (G.K.)
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Schranner D, Kastenmüller G, Schönfelder M, Römisch-Margl W, Wackerhage H. Metabolite Concentration Changes in Humans After a Bout of Exercise: a Systematic Review of Exercise Metabolomics Studies. Sports Med Open 2020; 6:11. [PMID: 32040782 PMCID: PMC7010904 DOI: 10.1186/s40798-020-0238-4] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/20/2020] [Indexed: 12/27/2022]
Abstract
Background Exercise changes the concentrations of many metabolites, which are small molecules (< 1.5 kDa) metabolized by the reactions of human metabolism. In recent years, especially mass spectrometry-based metabolomics methods have allowed researchers to measure up to hundreds of metabolites in a single sample in a non-biased fashion. To summarize human exercise metabolomics studies to date, we conducted a systematic review that reports the results of experiments that found metabolite concentrations changes after a bout of human endurance or resistance exercise. Methods We carried out a systematic review following PRISMA guidelines and searched for human metabolomics studies that report metabolite concentrations before and within 24 h after endurance or resistance exercise in blood, urine, or sweat. We then displayed metabolites that significantly changed their concentration in at least two experiments. Results Twenty-seven studies and 57 experiments matched our search criteria and were analyzed. Within these studies, 196 metabolites changed their concentration significantly within 24 h after exercise in at least two experiments. Human biofluids contain mainly unphosphorylated metabolites as the phosphorylation of metabolites such as ATP, glycolytic intermediates, or nucleotides traps these metabolites within cells. Lactate, pyruvate, TCA cycle intermediates, fatty acids, acylcarnitines, and ketone bodies all typically increase after exercise, whereas bile acids decrease. In contrast, the concentrations of proteinogenic and non-proteinogenic amino acids change in different directions. Conclusion Across different exercise modes and in different subjects, exercise often consistently changes the average concentrations of metabolites that belong to energy metabolism and other branches of metabolism. This dataset is a useful resource for those that wish to study human exercise metabolism.
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Affiliation(s)
- Daniela Schranner
- Exercise Biology Group, Department of Sport and Health Sciences, Technische Universität München, Munich, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Martin Schönfelder
- Exercise Biology Group, Department of Sport and Health Sciences, Technische Universität München, Munich, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Henning Wackerhage
- Exercise Biology Group, Department of Sport and Health Sciences, Technische Universität München, Munich, Germany.
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Haid M, Muschet C, Wahl S, Römisch-Margl W, Prehn C, Möller G, Adamski J. Long-Term Stability of Human Plasma Metabolites during Storage at -80 °C. J Proteome Res 2017; 17:203-211. [PMID: 29064256 DOI: 10.1021/acs.jproteome.7b00518] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Prolonged storage of biospecimen can lead to artificially altered metabolite concentrations and thus bias data analysis in metabolomics experiments. To elucidate the potential impact of long-term storage on the metabolite profile, a pooled human plasma sample was aliquoted and stored at -80 °C. During a time period of five years, 1012 of the aliquots were measured with the Biocrates AbsoluteIDQ p180 targeted-metabolomics assay at 193 time points. Modeling the concentration courses over time revealed that 55 out of 111 metabolites remained stable. The statistically significantly changed metabolites showed on average an increase or decrease of +13.7% or -14.5%, respectively. In detail, increased concentration levels were observed for amino acids (mean: + 15.4%), the sum of hexoses (+7.9%), butyrylcarnitine (+9.4%), and some phospholipids mostly with chain lengths exceeding 40 carbon atoms (mean: +18.0%). Lipids tended to exhibit decreased concentration levels with the following mean concentration changes: acylcarnitines, -12.1%; lysophosphatidylcholines, -15.1%; diacyl-phosphatidylcholines, -17.0%; acyl-alkyl-phosphatidylcholines, -13.3%; sphingomyelins, -14.8%. We conclude that storage of plasma samples at -80 °C for up to five years can lead to altered concentration levels of amino acids, acylcarnitines, glycerophospholipids, sphingomyelins, and the sum of hexoses. These alterations must be considered when analyzing metabolomics data from long-term epidemiological studies.
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Affiliation(s)
| | | | | | | | | | | | - Jerzy Adamski
- Lehrstuhl für Experimentelle Genetik, Technische Universität München , 85350 Freising-Weihenstephan, Germany.,German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
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Koch M, Freitag-Wolf S, Schlesinger S, Borggrefe J, Hov JR, Jensen MK, Pick J, Markus MRP, Höpfner T, Jacobs G, Siegert S, Artati A, Kastenmüller G, Römisch-Margl W, Adamski J, Illig T, Nothnagel M, Karlsen TH, Schreiber S, Franke A, Krawczak M, Nöthlings U, Lieb W. Serum metabolomic profiling highlights pathways associated with liver fat content in a general population sample. Eur J Clin Nutr 2017; 71:995-1001. [DOI: 10.1038/ejcn.2017.43] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 02/22/2017] [Accepted: 03/01/2017] [Indexed: 01/02/2023]
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Siskos AP, Jain P, Römisch-Margl W, Bennett M, Achaintre D, Asad Y, Marney L, Richardson L, Koulman A, Griffin JL, Raynaud F, Scalbert A, Adamski J, Prehn C, Keun HC. Interlaboratory Reproducibility of a Targeted Metabolomics Platform for Analysis of Human Serum and Plasma. Anal Chem 2017; 89:656-665. [PMID: 27959516 PMCID: PMC6317696 DOI: 10.1021/acs.analchem.6b02930] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A critical question facing the field of metabolomics is whether data obtained from different centers can be effectively compared and combined. An important aspect of this is the interlaboratory precision (reproducibility) of the analytical protocols used. We analyzed human samples in six laboratories using different instrumentation but a common protocol (the AbsoluteIDQ p180 kit) for the measurement of 189 metabolites via liquid chromatography (LC) or flow injection analysis (FIA) coupled to tandem mass spectrometry (MS/MS). In spiked quality control (QC) samples 82% of metabolite measurements had an interlaboratory precision of <20%, while 83% of averaged individual laboratory measurements were accurate to within 20%. For 20 typical biological samples (serum and plasma from healthy individuals) the median interlaboratory coefficient of variation (CV) was 7.6%, with 85% of metabolites exhibiting a median interlaboratory CV of <20%. Precision was largely independent of the type of sample (serum or plasma) or the anticoagulant used but was reduced in a sample from a patient with dyslipidaemia. The median interlaboratory accuracy and precision of the assay for standard reference plasma (NIST SRM 1950) were 107% and 6.7%, respectively. Likely sources of irreproducibility were the near limit of detection (LOD) typical abundance of some metabolites and the degree of manual review and optimization of peak integration in the LC-MS/MS data after acquisition. Normalization to a reference material was crucial for the semi-quantitative FIA measurements. This is the first interlaboratory assessment of a widely used, targeted metabolomics assay illustrating the reproducibility of the protocol and how data generated on different instruments could be directly integrated in large-scale epidemiological studies.
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Affiliation(s)
| | - Pooja Jain
- Department of Surgery and Cancer, Imperial College London, W12 0NN, UK
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Mark Bennett
- Department of Life Sciences, Imperial College London, SW7 2AZ, UK
| | - David Achaintre
- International Agency for Research on Cancer (IARC), Biomarkers Group, F-69372 Lyon, France
| | - Yasmin Asad
- The Institute of Cancer Research, ICR, Sutton, SM2 5NG, UK
| | - Luke Marney
- MRC Human Nutrition Research, Cambridge, CB1 9NL, UK
| | | | | | | | | | - Augustin Scalbert
- International Agency for Research on Cancer (IARC), Biomarkers Group, F-69372 Lyon, France
| | - Jerzy Adamski
- Genome Analysis Center, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
- Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85354 Freising-Weihenstephan, Germany
- German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Cornelia Prehn
- Genome Analysis Center, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Hector C. Keun
- Department of Surgery and Cancer, Imperial College London, W12 0NN, UK
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Knacke H, Pietzner M, Do KT, Römisch-Margl W, Kastenmüller G, Völker U, Völzke H, Krumsiek J, Artati A, Wallaschofski H, Nauck M, Suhre K, Adamski J, Friedrich N. Metabolic Fingerprints of Circulating IGF-1 and the IGF-1/IGFBP-3 Ratio: A Multifluid Metabolomics Study. J Clin Endocrinol Metab 2016; 101:4730-4742. [PMID: 27710242 DOI: 10.1210/jc.2016-2588] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE IGF-1 is known for its various physiological and severe pathophysiological effects on human metabolism; however, underlying molecular mechanisms still remain unsolved. To reveal possible molecular mechanisms mediating these effects, for the first time, we associated serum IGF-1 levels with multifluid untargeted metabolomics data. METHODS Plasma/urine samples of 995 nondiabetic participants of the Study of Health in Pomerania were characterized by mass spectrometry. Sex-specific linear regression analyses were performed to assess the association of IGF-1 and IGF-1/IGF binding protein 3 ratio with metabolites. Additionally, the predictive ability of the plasma and urine metabolome for IGF-1 was assessed by orthogonal partial least squares analyses. RESULTS AND CONCLUSIONS We revealed a multifaceted image of associated metabolites with large sex differences. Confirming previous reports, we detected relations between IGF-1 and steroid hormones or related intermediates. Furthermore, various associated metabolites were previously mentioned regarding IGF-1-associated diseases, eg, betaine and cortisol in cardiovascular disease and metabolic syndrome, lipid disorders, and diabetes, or have previously been found to associate with differentiation and proliferation or mitochondrial functionality, eg, phospholipids. bradykinin, fatty acid derivatives, and cortisol, which were inversely associated with IGF-1, might establish a link of IGF-1 with inflammation. For the first time, we showed an association between IGF-1 and pipecolate, a metabolite linked to amino acid metabolism. Our study demonstrates that IGF-1 action on metabolism is tractable, even in healthy subjects, and that the findings provide a solid basis for further experimental/clinical investigation, eg, searching for inflammatory or cardiovascular disease- or metabolic syndrome-associated biomarkers and therapeutic targets.
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Affiliation(s)
- Henrike Knacke
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Maik Pietzner
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Kieu Trinh Do
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Werner Römisch-Margl
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Gabi Kastenmüller
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Uwe Völker
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Henry Völzke
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Jan Krumsiek
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Anna Artati
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Henri Wallaschofski
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Karsten Suhre
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Jerzy Adamski
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
| | - Nele Friedrich
- Institute of Clinical Chemistry and Laboratory Medicine (H.K., M.P., H.W., M.N., N.F.) and Institute for Community Medicine (H.V.), University Medicine Greifswald, Interfaculty Institute for Genetics and Functional Genomics (U.V.), University Medicine and Ernst-Moritz Arndt-University Greifswald, and German Center for Cardiovascular Research (M.N., N.F.), partner site Greifswald, 17475 Greifswald, Germany; Institute of Computational Biology (K.T.D., J.K., K.S.), Helmholtz-Zentrum München, and German Center for Diabetes Research (J.K.), and Institute of Bioinformatics and Systems Biology (W.R.-M., G.K.), Helmholtz Zentrum München, German Research Center for Environmental Health, and Institute of Experimental Genetics (A.A., J.A.), Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany, and German Center for Diabetes Research (J.A.), 85764 München-Neuherberg, Germany; Schwerpunktpraxis für Diabetes und Hormonerkrankungen (H.W.), 99094 Erfurt, Germany; Weill Cornell Medical College in Qatar (K.S.), Education City, Qatar Foundation, Doha, Qatar; Lehrstuhl für Experimentelle Genetik (J.A.), Technische Universität München, 85350 Freising-Weihenstephan, Germany; Research Centre for Prevention and Health (N.F.), Capital Region of Denmark, 2600 Glostrup, Denmark
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10
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Much D, Beyerlein A, Kindt A, Krumsiek J, Stückler F, Rossbauer M, Hofelich A, Wiesenäcker D, Hivner S, Herbst M, Römisch-Margl W, Prehn C, Adamski J, Kastenmüller G, Theis F, Ziegler AG, Hummel S. Lactation is associated with altered metabolomic signatures in women with gestational diabetes. Diabetologia 2016; 59:2193-202. [PMID: 27423999 DOI: 10.1007/s00125-016-4055-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 06/20/2016] [Indexed: 01/11/2023]
Abstract
AIMS/HYPOTHESIS Lactation for >3 months in women with gestational diabetes is associated with a reduced risk of type 2 diabetes that persists for up to 15 years postpartum. However, the underlying mechanisms are unknown. We examined whether in women with gestational diabetes lactation for >3 months is associated with altered metabolomic signatures postpartum. METHODS We enrolled 197 women with gestational diabetes at a median of 3.6 years (interquartile range 0.7-6.5 years) after delivery. Targeted metabolomics profiles (including 156 metabolites) were obtained during a glucose challenge test. Comparisons of metabolite concentrations and ratios between women who lactated for >3 months and women who lactated for ≤3 months or not at all were performed using linear regression with adjustment for age and BMI at the postpartum visit, time since delivery, and maternal education level, and correction for multiple testing. Gaussian graphical modelling was used to generate metabolite networks. RESULTS Lactation for >3 months was associated with a higher total lysophosphatidylcholine/total phosphatidylcholine ratio; in women with short-term follow-up, it was also associated with lower leucine concentrations and a lower total branched-chain amino acid concentration. Gaussian graphical modelling identified subgroups of closely linked metabolites within phosphatidylcholines and branched-chain amino acids that were affected by lactation for >3 months and have been linked to the pathophysiology of type 2 diabetes in previous studies. CONCLUSIONS/INTERPRETATION Lactation for >3 months in women with gestational diabetes is associated with changes in the metabolomics profile that have been linked to the early pathogenesis of type 2 diabetes.
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Affiliation(s)
- Daniela Much
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Forschergruppe Diabetes e.V., Neuherberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Andreas Beyerlein
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Alida Kindt
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Jan Krumsiek
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Ferdinand Stückler
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Michaela Rossbauer
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Forschergruppe Diabetes e.V., Neuherberg, Germany
| | - Anna Hofelich
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - David Wiesenäcker
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Department of Pediatrics, Kinderklinik München Schwabing, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Susanne Hivner
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Forschergruppe Diabetes e.V., Neuherberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Melanie Herbst
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Forschergruppe Diabetes e.V., Neuherberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Werner Römisch-Margl
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Cornelia Prehn
- Genome Analysis Center, Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Jerzy Adamski
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Genome Analysis Center, Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
- Lehrstuhl für Experimentelle Genetik, Technische Universität München, Freising-Weihenstephan, Germany
| | - Gabi Kastenmüller
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Fabian Theis
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Anette-G Ziegler
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Forschergruppe Diabetes e.V., Neuherberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Sandra Hummel
- Institute of Diabetes Research, Helmholtz Zentrum München, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany.
- Forschergruppe Diabetes, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
- Forschergruppe Diabetes e.V., Neuherberg, Germany.
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany.
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11
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Altmaier E, Menni C, Heier M, Meisinger C, Thorand B, Quell J, Kobl M, Römisch-Margl W, Valdes AM, Mangino M, Waldenberger M, Strauch K, Illig T, Adamski J, Spector T, Gieger C, Suhre K, Kastenmüller G. The Pharmacogenetic Footprint of ACE Inhibition: A Population-Based Metabolomics Study. PLoS One 2016; 11:e0153163. [PMID: 27120469 PMCID: PMC4847917 DOI: 10.1371/journal.pone.0153163] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/07/2016] [Indexed: 12/31/2022] Open
Abstract
Angiotensin-I-converting enzyme (ACE) inhibitors are an important class of antihypertensives whose action on the human organism is still not fully understood. Although it is known that ACE especially cleaves COOH-terminal dipeptides from active polypeptides, the whole range of substrates and products is still unknown. When analyzing the action of ACE inhibitors, effects of genetic variation on metabolism need to be considered since genetic variance in the ACE gene locus was found to be associated with ACE-concentration in blood as well as with changes in the metabolic profiles of a general population. To investigate the interactions between genetic variance at the ACE-locus and the influence of ACE-therapy on the metabolic status we analyzed 517 metabolites in 1,361 participants from the KORA F4 study. We replicated our results in 1,964 individuals from TwinsUK. We observed differences in the concentration of five dipeptides and three ratios of di- and oligopeptides between ACE inhibitor users and non-users that were genotype dependent. Such changes in the concentration affected major homozygotes, and to a lesser extent heterozygotes, while minor homozygotes showed no or only small changes in the metabolite status. Two of these resulting dipeptides, namely aspartylphenylalanine and phenylalanylserine, showed significant associations with blood pressure which qualifies them—and perhaps also the other dipeptides—as readouts of ACE-activity. Since so far ACE activity measurement is substrate specific due to the usage of only one oligopeptide, taking several dipeptides as potential products of ACE into account may provide a broader picture of the ACE activity.
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Affiliation(s)
- Elisabeth Altmaier
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Cristina Menni
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Margit Heier
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Barbara Thorand
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Jan Quell
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Michael Kobl
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Ana M. Valdes
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Massimo Mangino
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Konstantin Strauch
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Marchionistr. 15, D-81377 München, Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Hannover Unified Biobank, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany
- Institute of Human Genetics, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hanover, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Institute of Experimental Genetics, Life and Food Science Center Weihenstephan, Technische Universität München, D-85354 Freising, Germany
- German Center for Diabetes Research (DZD e.V.), Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Tim Spector
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
| | - Christian Gieger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, PO Box 24144, Doha, State of Qatar
| | - Gabi Kastenmüller
- Department of Twin Research & Genetic Epidemiology, King’s College London, London SE1 7EH, United Kingdom
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- German Center for Diabetes Research (DZD e.V.), Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany
- * E-mail:
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12
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Much D, Beyerlein A, Kindt A, Krumsiek J, Stückler F, Rossbauer M, Hofelich A, Wiesenäcker D, Hivner S, Herbst M, Römisch-Margl W, Prehn C, Adamski J, Kastenmüller G, Theis F, Ziegler AG, Hummel S. Lactation is associated with altered metabolomic signatures in women with gestational diabetes. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1580927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Sekula P, Goek ON, Quaye L, Barrios C, Levey AS, Römisch-Margl W, Menni C, Yet I, Gieger C, Inker LA, Adamski J, Gronwald W, Illig T, Dettmer K, Krumsiek J, Oefner PJ, Valdes AM, Meisinger C, Coresh J, Spector TD, Mohney RP, Suhre K, Kastenmüller G, Köttgen A. A Metabolome-Wide Association Study of Kidney Function and Disease in the General Population. J Am Soc Nephrol 2015; 27:1175-88. [PMID: 26449609 DOI: 10.1681/asn.2014111099] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 07/28/2015] [Indexed: 12/25/2022] Open
Abstract
Small molecules are extensively metabolized and cleared by the kidney. Changes in serum metabolite concentrations may result from impaired kidney function and can be used to estimate filtration (e.g., the established marker creatinine) or may precede and potentially contribute to CKD development. Here, we applied a nontargeted metabolomics approach using gas and liquid chromatography coupled to mass spectrometry to quantify 493 small molecules in human serum. The associations of these molecules with GFR estimated on the basis of creatinine (eGFRcr) and cystatin C levels were assessed in ≤1735 participants in the KORA F4 study, followed by replication in 1164 individuals in the TwinsUK registry. After correction for multiple testing, 54 replicated metabolites significantly associated with eGFRcr, and six of these showed pairwise correlation (r≥0.50) with established kidney function measures: C-mannosyltryptophan, pseudouridine, N-acetylalanine, erythronate, myo-inositol, and N-acetylcarnosine. Higher C-mannosyltryptophan, pseudouridine, and O-sulfo-L-tyrosine concentrations associated with incident CKD (eGFRcr <60 ml/min per 1.73 m(2)) in the KORA F4 study. In contrast with serum creatinine, C-mannosyltryptophan and pseudouridine concentrations showed little dependence on sex. Furthermore, correlation with measured GFR in 200 participants in the AASK study was 0.78 for both C-mannosyltryptophan and pseudouridine concentration, and highly significant associations of both metabolites with incident ESRD disappeared upon adjustment for measured GFR. Thus, these molecules may be alternative or complementary markers of kidney function. In conclusion, our study provides a comprehensive list of kidney function-associated metabolites and highlights potential novel filtration markers that may help to improve the estimation of GFR.
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Affiliation(s)
- Peggy Sekula
- Division of Nephrology and Center for Medical Biometry and Medical Informatics, Medical Center-University of Freiburg, Freiburg, Germany
| | | | - Lydia Quaye
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom
| | - Clara Barrios
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom; Department of Nephrology, Hospital del Mar, Institut Mar d'Investigacions Mediques, Barcelona, Spain
| | - Andrew S Levey
- Division of Nephrology, Tufts Medical Center, Boston, Massachusetts
| | | | - Cristina Menni
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom
| | - Idil Yet
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom
| | | | - Lesley A Inker
- Division of Nephrology, Tufts Medical Center, Boston, Massachusetts
| | - Jerzy Adamski
- Experimental Genetics, Genome Analysis Center, German Center for Diabetes Research, Neuherberg, Germany; Institute of Experimental Genetics, Technical University of Munich, Freising-Weihenstephan, Germany
| | - Wolfram Gronwald
- Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology and Hannover Unified Biobank and Institute for Human Genetics, Hannover Medical School, Hannover, Germany
| | - Katja Dettmer
- Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | | | - Peter J Oefner
- Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | - Ana M Valdes
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom; Academic Rheumatology, University of Nottingham, Nottingham, United Kingdom
| | - Christa Meisinger
- Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Josef Coresh
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Tim D Spector
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom
| | | | - Karsten Suhre
- Institutes of Bioinformatics and Systems Biology, Department of Physiology and Biophysics, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Gabi Kastenmüller
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom; Institutes of Bioinformatics and Systems Biology, German Center for Diabetes Research, Neuherberg, Germany;
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14
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Anton G, Wilson R, Yu ZH, Prehn C, Zukunft S, Adamski J, Heier M, Meisinger C, Römisch-Margl W, Wang-Sattler R, Hveem K, Wolfenbuttel B, Peters A, Kastenmüller G, Waldenberger M. Pre-analytical sample quality: metabolite ratios as an intrinsic marker for prolonged room temperature exposure of serum samples. PLoS One 2015; 10:e0121495. [PMID: 25823017 PMCID: PMC4379062 DOI: 10.1371/journal.pone.0121495] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/01/2015] [Indexed: 11/19/2022] Open
Abstract
Advances in the "omics" field bring about the need for a high number of good quality samples. Many omics studies take advantage of biobanked samples to meet this need. Most of the laboratory errors occur in the pre-analytical phase. Therefore evidence-based standard operating procedures for the pre-analytical phase as well as markers to distinguish between 'good' and 'bad' quality samples taking into account the desired downstream analysis are urgently needed. We studied concentration changes of metabolites in serum samples due to pre-storage handling conditions as well as due to repeated freeze-thaw cycles. We collected fasting serum samples and subjected aliquots to up to four freeze-thaw cycles and to pre-storage handling delays of 12, 24 and 36 hours at room temperature (RT) and on wet and dry ice. For each treated aliquot, we quantified 127 metabolites through a targeted metabolomics approach. We found a clear signature of degradation in samples kept at RT. Storage on wet ice led to less pronounced concentration changes. 24 metabolites showed significant concentration changes at RT. In 22 of these, changes were already visible after only 12 hours of storage delay. Especially pronounced were increases in lysophosphatidylcholines and decreases in phosphatidylcholines. We showed that the ratio between the concentrations of these molecule classes could serve as a measure to distinguish between 'good' and 'bad' quality samples in our study. In contrast, we found quite stable metabolite concentrations during up to four freeze-thaw cycles. We concluded that pre-analytical RT handling of serum samples should be strictly avoided and serum samples should always be handled on wet ice or in cooling devices after centrifugation. Moreover, serum samples should be frozen at or below -80°C as soon as possible after centrifugation.
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Affiliation(s)
- Gabriele Anton
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
- * E-mail:
| | - Rory Wilson
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
| | - Zhong-hao Yu
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
| | - Cornelia Prehn
- Institute of Experimental Genetics, Helmholtz Center Munich, Munich, Germany
| | - Sven Zukunft
- Institute of Experimental Genetics, Helmholtz Center Munich, Munich, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Helmholtz Center Munich, Munich, Germany
| | - Margit Heier
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
- Central Hospital of Augsburg, KORA Myocardial Infarction Registry, Augsburg, Germany
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
- Central Hospital of Augsburg, KORA Myocardial Infarction Registry, Augsburg, Germany
| | - Werner Römisch-Margl
- Institute for Bioinformatics and Systems Biology, Helmholtz Center Munich, Munich, Germany
| | - Rui Wang-Sattler
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
| | - Kristian Hveem
- Department of Public Health and General Practice, Norwegian University of Science and Technology, Levanger, Norway
| | - Bruce Wolfenbuttel
- Department of Endocrinology, University Medical Center Groningen, Groningen, The Netherlands
| | - Annette Peters
- Institute of Epidemiology II, Helmholtz Center Munich, Munich, Germany
| | - Gabi Kastenmüller
- Institute for Bioinformatics and Systems Biology, Helmholtz Center Munich, Munich, Germany
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15
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Diakopoulos KN, Lesina M, Wörmann S, Song L, Aichler M, Schild L, Artati A, Römisch-Margl W, Wartmann T, Fischer R, Kabiri Y, Zischka H, Halangk W, Demir IE, Pilsak C, Walch A, Mantzoros CS, Steiner JM, Erkan M, Schmid RM, Witt H, Adamski J, Algül H. Impaired autophagy induces chronic atrophic pancreatitis in mice via sex- and nutrition-dependent processes. Gastroenterology 2015; 148:626-638.e17. [PMID: 25497209 DOI: 10.1053/j.gastro.2014.12.003] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 12/04/2014] [Accepted: 12/04/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS Little is known about the mechanisms of the progressive tissue destruction, inflammation, and fibrosis that occur during development of chronic pancreatitis. Autophagy is involved in multiple degenerative and inflammatory diseases, including pancreatitis, and requires the protein autophagy related 5 (ATG5). We created mice with defects in autophagy to determine its role in pancreatitis. METHODS We created mice with pancreas-specific disruption of Atg5 (Ptf1aCreex1;Atg5F/F mice) and compared them to control mice. Pancreata were collected and histology, immunohistochemistry, transcriptome, and metabolome analyses were performed. ATG5-deficient mice were placed on diets containing 25% palm oil and compared with those on a standard diet. Another set of mice received the antioxidant N-acetylcysteine. Pancreatic tissues were collected from 8 patients with chronic pancreatitis (CP) and compared with pancreata from ATG5-deficient mice. RESULTS Mice with pancreas-specific disruption of Atg5 developed atrophic CP, independent of β-cell function; a greater proportion of male mice developed CP than female mice. Pancreata from ATG5-deficient mice had signs of inflammation, necrosis, acinar-to-ductal metaplasia, and acinar-cell hypertrophy; this led to tissue atrophy and degeneration. Based on transcriptome and metabolome analyses, ATG5-deficient mice produced higher levels of reactive oxygen species than control mice, and had insufficient activation of glutamate-dependent metabolism. Pancreata from these mice had reduced autophagy, increased levels of p62, and increases in endoplasmic reticulum stress and mitochondrial damage, compared with tissues from control mice; p62 signaling to Nqo1 and p53 was also activated. Dietary antioxidants, especially in combination with palm oil-derived fatty acids, blocked progression to CP and pancreatic acinar atrophy. Tissues from patients with CP had many histologic similarities to those from ATG5-deficient mice. CONCLUSIONS Mice with pancreas-specific disruption of Atg5 develop a form of CP similar to that of humans. CP development appears to involve defects in autophagy, glutamate-dependent metabolism, and increased production of reactive oxygen species. These mice might be used to identify therapeutic targets for CP.
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Affiliation(s)
- Kalliope N Diakopoulos
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Marina Lesina
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Sonja Wörmann
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Liang Song
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Michaela Aichler
- Research Unit Analytical Pathology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Lorenz Schild
- Institut für Klinische Chemie und Pathobiochemie, Bereich Pathologische Biochemie, Otto-von-Guericke-Universität Magdeburg Medizinische Fakultät, Magdeburg, Germany
| | - Anna Artati
- Institute of Experimental Genetics, Genome Analysis Centre, Helmholtz Zentrum München, Neuherberg, Germany
| | - Werner Römisch-Margl
- Institute of Experimental Genetics, Genome Analysis Centre, Helmholtz Zentrum München, Neuherberg, Germany
| | - Thomas Wartmann
- Klinik für Chirurgie Bereich Experimentelle Operative Medizin, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | - Robert Fischer
- Klinik für Chirurgie Bereich Experimentelle Operative Medizin, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | - Yashar Kabiri
- Institut für Molekulare Toxikologie und Pharmakologie, Helmholtz Zentrum München, Neuherberg, Germany
| | - Hans Zischka
- Institut für Molekulare Toxikologie und Pharmakologie, Helmholtz Zentrum München, Neuherberg, Germany
| | - Walter Halangk
- Klinik für Chirurgie Bereich Experimentelle Operative Medizin, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | - Ihsan Ekin Demir
- Chirurgische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Claudia Pilsak
- Else Kröner-Fresenius-Zentrum, Paediatric Nutritional Medicine, Technische Universität München, Freising, Germany
| | - Axel Walch
- Research Unit Analytical Pathology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Christos S Mantzoros
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, Massachusetts
| | - Jörg M Steiner
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Mert Erkan
- Department of Surgery, School of Medicine, Koc University, Istanbul, Turkey
| | - Roland M Schmid
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Heiko Witt
- Else Kröner-Fresenius-Zentrum, Paediatric Nutritional Medicine, Technische Universität München, Freising, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Centre, Helmholtz Zentrum München, Neuherberg, Germany
| | - Hana Algül
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
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16
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Mathew S, Krug S, Skurk T, Halama A, Stank A, Artati A, Prehn C, Malek JA, Kastenmüller G, Römisch-Margl W, Adamski J, Hauner H, Suhre K. Metabolomics of Ramadan fasting: an opportunity for the controlled study of physiological responses to food intake. J Transl Med 2014; 12:161. [PMID: 24906381 PMCID: PMC4063233 DOI: 10.1186/1479-5876-12-161] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 05/28/2014] [Indexed: 12/20/2022] Open
Abstract
High-throughput screening techniques that analyze the metabolic endpoints of biological processes can identify the contributions of genetic predisposition and environmental factors to the development of common diseases. Studies applying controlled physiological challenges can reveal dysregulation in metabolic responses that may be predictive for or associated with these diseases. However, large-scale epidemiological studies with well controlled physiological challenge conditions, such as extended fasting periods and defined food intake, pose logistic challenges. Culturally and religiously motivated behavioral patterns of life style changes provide a natural setting that can be used to enroll a large number of study volunteers. Here we report a proof of principle study conducted within a Muslim community, showing that a metabolomics study during the Holy Month of Ramadan can provide a unique opportunity to explore the pre-prandial and postprandial response of human metabolism to nutritional challenges. Up to five blood samples were obtained from eleven healthy male volunteers, taken directly before and two hours after consumption of a controlled meal in the evening on days 7 and 26 of Ramadan, and after an over-night fast several weeks after Ramadan. The observed increases in glucose, insulin and lactate levels at the postprandial time point confirm the expected physiological response to food intake. Targeted metabolomics further revealed significant and physiologically plausible responses to food intake by an increase in bile acid and amino acid levels and a decrease in long-chain acyl-carnitine and polyamine levels. A decrease in the concentrations of a number of phospholipids between samples taken on days 7 and 26 of Ramadan shows that the long-term response to extended fasting may differ from the response to short-term fasting. The present study design is scalable to larger populations and may be extended to the study of the metabolic response in defined patient groups such as individuals with type 2 diabetes.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College - Qatar, Doha, Qatar.
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17
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Renner S, Streckel E, Braun-Reichhart C, Römisch-Margl W, Prehn C, Adamski J, Wolf E. Metabolic footprint of the GLP-1 receptor agonist liraglutide in adolescent transgenic pigs with impaired incretin function. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1375129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Mook-Kanamori DO, Römisch-Margl W, Kastenmüller G, Prehn C, Petersen AK, Illig T, Gieger C, Wang-Sattler R, Meisinger C, Peters A, Adamski J, Suhre K. Increased amino acids levels and the risk of developing of hypertriglyceridemia in a 7-year follow-up. J Endocrinol Invest 2014; 37:369-74. [PMID: 24682914 PMCID: PMC3972444 DOI: 10.1007/s40618-013-0044-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 12/10/2013] [Indexed: 02/01/2023]
Abstract
BACKGROUND Recently, five branched-chain and aromatic amino acids were shown to be associated with the risk of developing type 2 diabetes (T2D). AIM We set out to examine whether amino acids are also associated with the development of hypertriglyceridemia. MATERIALS AND METHODS We determined the serum amino acids concentrations of 1,125 individuals of the KORA S4 baseline study, for which follow-up data were available also at the KORA F4 7 years later. After exclusion for hypertriglyceridemia (defined as having a fasting triglyceride level above 1.70 mmol/L) and diabetes at baseline, 755 subjects remained for analyses. RESULTS Increased levels of leucine, arginine, valine, proline, phenylalanine, isoleucine and lysine were significantly associated with an increased risk of hypertriglyceridemia. These associations remained significant when restricting to those individuals who did not develop T2D in the 7-year follow-up. The increase per standard deviation of amino acid level was between 26 and 40 %. CONCLUSIONS Seven amino acids were associated with an increased risk of developing hypertriglyceridemia after 7 years. Further studies are necessary to elucidate the complex role of these amino acids in the pathogenesis of metabolic disorders.
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Affiliation(s)
- D. O. Mook-Kanamori
- Department of Physiology and Biophysics, Weill Cornell Medical College, Qatar, PO Box 24144 Doha, Qatar
- Department of Endocrinology and Metabolic Diseases, Leiden University Medical Centre, Leiden, The Netherlands
| | - W. Römisch-Margl
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Bioinformatics and Systems Biology, Neuherberg, Germany
| | - G. Kastenmüller
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Bioinformatics and Systems Biology, Neuherberg, Germany
| | - C. Prehn
- Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Experimental Genetics, Neuherberg, Germany
| | - A. K. Petersen
- Research Unit of Molecular Epidemiology I, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - T. Illig
- Hannover Unified Biobank, Hannover Medical School, Hannover, Germany
| | - C. Gieger
- Research Unit of Molecular Epidemiology I, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - R. Wang-Sattler
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Genetic Epidemiology, Neuherberg, Germany
| | - C. Meisinger
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Epidemiology II, Neuherberg, Germany
| | - A. Peters
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Epidemiology II, Neuherberg, Germany
| | - J. Adamski
- Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Experimental Genetics, Neuherberg, Germany
- Technische Universität München, Munich, Germany
| | - K. Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College, Qatar, PO Box 24144 Doha, Qatar
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Bioinformatics and Systems Biology, Neuherberg, Germany
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19
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Shin SY, Petersen AK, Wahl S, Zhai G, Römisch-Margl W, Small KS, Döring A, Kato BS, Peters A, Grundberg E, Prehn C, Wang-Sattler R, Wichmann HE, de Angelis MH, Illig T, Adamski J, Deloukas P, Spector TD, Suhre K, Gieger C, Soranzo N. Interrogating causal pathways linking genetic variants, small molecule metabolites, and circulating lipids. Genome Med 2014; 6:25. [PMID: 24678845 PMCID: PMC4062056 DOI: 10.1186/gm542] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 03/14/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Emerging technologies based on mass spectrometry or nuclear magnetic resonance enable the monitoring of hundreds of small metabolites from tissues or body fluids. Profiling of metabolites can help elucidate causal pathways linking established genetic variants to known disease risk factors such as blood lipid traits. METHODS We applied statistical methodology to dissect causal relationships between single nucleotide polymorphisms, metabolite concentrations, and serum lipid traits, focusing on 95 genetic loci reproducibly associated with the four main serum lipids (total-, low-density lipoprotein-, and high-density lipoprotein- cholesterol and triglycerides). The dataset used included 2,973 individuals from two independent population-based cohorts with data for 151 small molecule metabolites and four main serum lipids. Three statistical approaches, namely conditional analysis, Mendelian randomization, and structural equation modeling, were compared to investigate causal relationship at sets of a single nucleotide polymorphism, a metabolite, and a lipid trait associated with one another. RESULTS A subset of three lipid-associated loci (FADS1, GCKR, and LPA) have a statistically significant association with at least one main lipid and one metabolite concentration in our data, defining a total of 38 cross-associated sets of a single nucleotide polymorphism, a metabolite and a lipid trait. Structural equation modeling provided sufficient discrimination to indicate that the association of a single nucleotide polymorphism with a lipid trait was mediated through a metabolite at 15 of the 38 sets, and involving variants at the FADS1 and GCKR loci. CONCLUSIONS These data provide a framework for evaluating the causal role of components of the metabolome (or other intermediate factors) in mediating the association between established genetic variants and diseases or traits.
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Affiliation(s)
- So-Youn Shin
- Wellcome Trust Sanger Institute, Genome Campus, Hinxton CB10 1HH, UK ; MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, UK
| | - Ann-Kristin Petersen
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - Simone Wahl
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Guangju Zhai
- Department of Twin Research & Genetic Epidemiology, King's College London, London SE1 7EH, UK ; Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, Newfoundland, Canada
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - Kerrin S Small
- Department of Twin Research & Genetic Epidemiology, King's College London, London SE1 7EH, UK
| | - Angela Döring
- Institute of Epidemiology I, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - Bernet S Kato
- Department of Twin Research & Genetic Epidemiology, King's College London, London SE1 7EH, UK ; Respiratory Epidemiology, Occupational Medicine and Public Health, Imperial College London, London SW3 6LR, UK
| | - Annette Peters
- Institute of Epidemiology II, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - Elin Grundberg
- Department of Human Genetics, McGill University, Montreal H3A 1A5, Canada ; Genome Quebec Innovation Centre, McGill University, Montreal H3A 1A5, Canada
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - Rui Wang-Sattler
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - H-Erich Wichmann
- Institute of Epidemiology I, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; Institute of Medical Informatics, Biometry and Epidemiology, Chair of Epidemiology, Ludwig-Maximilians-Universität, München D-81377, Germany ; Klinikum Grosshadern, München D-81377, Germany
| | - Martin Hrabé de Angelis
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; Institute of Experimental Genetics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising D-85354, Germany
| | - Thomas Illig
- Hannover Unified Biobank, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; Institute of Experimental Genetics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising D-85354, Germany
| | - Panos Deloukas
- Wellcome Trust Sanger Institute, Genome Campus, Hinxton CB10 1HH, UK ; Willian Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK ; Princess Al-Jawhara Al-Brahim Centre of Excellence in Research of Hereditary Disorders (PACER-HD), King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tim D Spector
- Department of Twin Research & Genetic Epidemiology, King's College London, London SE1 7EH, UK
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg D-85764, Germany ; Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City - Qatar Foundation, Doha, Qatar
| | - Christian Gieger
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, Neuherberg D-85764, Germany
| | - Nicole Soranzo
- Wellcome Trust Sanger Institute, Genome Campus, Hinxton CB10 1HH, UK ; Department of Hematology, Long Road, Cambridge CB2 0PT, UK
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20
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Then C, Wahl S, Kirchhofer A, Grallert H, Krug S, Kastenmüller G, Römisch-Margl W, Claussnitzer M, Illig T, Heier M, Meisinger C, Adamski J, Thorand B, Huth C, Peters A, Prehn C, Heukamp I, Laumen H, Lechner A, Hauner H, Seissler J. Plasma metabolomics reveal alterations of sphingo- and glycerophospholipid levels in non-diabetic carriers of the transcription factor 7-like 2 polymorphism rs7903146. PLoS One 2013; 8:e78430. [PMID: 24205231 PMCID: PMC3813438 DOI: 10.1371/journal.pone.0078430] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 09/20/2013] [Indexed: 11/18/2022] Open
Abstract
AIMS/HYPOTHESIS Polymorphisms in the transcription factor 7-like 2 (TCF7L2) gene have been shown to display a powerful association with type 2 diabetes. The aim of the present study was to evaluate metabolic alterations in carriers of a common TCF7L2 risk variant. METHODS Seventeen non-diabetic subjects carrying the T risk allele at the rs7903146 TCF7L2 locus and 24 subjects carrying no risk allele were submitted to intravenous glucose tolerance test and euglycemic-hyperinsulinemic clamp. Plasma samples were analysed for concentrations of 163 metabolites through targeted mass spectrometry. RESULTS TCF7L2 risk allele carriers had a reduced first-phase insulin response and normal insulin sensitivity. Under fasting conditions, carriers of TCF7L2 rs7903146 exhibited a non-significant increase of plasma sphingomyelins (SMs), phosphatidylcholines (PCs) and lysophosphatidylcholines (lysoPCs) species. A significant genotype effect was detected in response to challenge tests in 6 SMs (C16:0, C16:1, C18:0, C18:1, C24:0, C24:1), 5 hydroxy-SMs (C14:1, C16:1, C22:1, C22:2, C24:1), 4 lysoPCs (C14:0, C16:0, C16:1, C17:0), 3 diacyl-PCs (C28:1, C36:6, C40:4) and 4 long-chain acyl-alkyl-PCs (C40:2, C40:5, C44:5, C44:6). DISCUSSION Plasma metabolomic profiling identified alterations of phospholipid metabolism in response to challenge tests in subjects with TCF7L2 rs7903146 genotype. This may reflect a genotype-mediated link to early metabolic abnormalities prior to the development of disturbed glucose tolerance.
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Affiliation(s)
- Cornelia Then
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, Klinikum der Universität München, Munich, Germany
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
| | - Simone Wahl
- Research Unit of Molecular Epidemiology, German Research Center for Environmental Health, Neuherberg, Germany
| | - Anna Kirchhofer
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, Klinikum der Universität München, Munich, Germany
| | - Harald Grallert
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
- Research Unit of Molecular Epidemiology, German Research Center for Environmental Health, Neuherberg, Germany
| | - Susanne Krug
- Else-Kroener-Fresenius-Centre for Nutritional Medicine, ZIEL - Research Centre for Nutrition and Food Sciences, Technical University München, Freising-Weihenstephan, Germany
- Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Technical University München and Helmholtz Zentrum München, Munich, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Melina Claussnitzer
- Else-Kroener-Fresenius-Centre for Nutritional Medicine, ZIEL - Research Centre for Nutrition and Food Sciences, Technical University München, Freising-Weihenstephan, Germany
- Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Technical University München and Helmholtz Zentrum München, Munich, Germany
| | - Thomas Illig
- Hannover Unified Biobank, Hannover Medical School, Hannover, Germany
| | - Margit Heier
- Institute of Epidemiology II, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany.
| | - Barbara Thorand
- Institute of Epidemiology II, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Cornelia Huth
- Institute of Epidemiology II, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Annette Peters
- Research Unit of Molecular Epidemiology, German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Epidemiology II, Helmholtz Zentrum München – German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany.
| | - Ina Heukamp
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, Klinikum der Universität München, Munich, Germany
| | - Helmut Laumen
- Else-Kroener-Fresenius-Centre for Nutritional Medicine, ZIEL - Research Centre for Nutrition and Food Sciences, Technical University München, Freising-Weihenstephan, Germany
- Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Technical University München and Helmholtz Zentrum München, Munich, Germany
| | - Andreas Lechner
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, Klinikum der Universität München, Munich, Germany
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
| | - Hans Hauner
- Else-Kroener-Fresenius-Centre for Nutritional Medicine, ZIEL - Research Centre for Nutrition and Food Sciences, Technical University München, Freising-Weihenstephan, Germany
- Clinical Cooperation Group Nutrigenomics and Type 2 Diabetes, Technical University München and Helmholtz Zentrum München, Munich, Germany
| | - Jochen Seissler
- Medizinische Klinik und Poliklinik IV, Diabetes Zentrum - Campus Innenstadt, Klinikum der Universität München, Munich, Germany
- Clinical Cooperation Group Diabetes, Ludwig-Maximilians-Universität München and Helmholtz Zentrum München, Munich, Germany
- * E-mail:
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21
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Petersen AK, Zeilinger S, Kastenmüller G, Römisch-Margl W, Brugger M, Peters A, Meisinger C, Strauch K, Hengstenberg C, Pagel P, Huber F, Mohney RP, Grallert H, Illig T, Adamski J, Waldenberger M, Gieger C, Suhre K. Epigenetics meets metabolomics: an epigenome-wide association study with blood serum metabolic traits. Hum Mol Genet 2013; 23:534-45. [PMID: 24014485 PMCID: PMC3869358 DOI: 10.1093/hmg/ddt430] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Previously, we reported strong influences of genetic variants on metabolic phenotypes, some of them with clinical relevance. Here, we hypothesize that DNA methylation may have an important and potentially independent effect on human metabolism. To test this hypothesis, we conducted what is to the best of our knowledge the first epigenome-wide association study (EWAS) between DNA methylation and metabolic traits (metabotypes) in human blood. We assess 649 blood metabolic traits from 1814 participants of the Kooperative Gesundheitsforschung in der Region Augsburg (KORA) population study for association with methylation of 457 004 CpG sites, determined on the Infinium HumanMethylation450 BeadChip platform. Using the EWAS approach, we identified two types of methylome–metabotype associations. One type is driven by an underlying genetic effect; the other type is independent of genetic variation and potentially driven by common environmental and life-style-dependent factors. We report eight CpG loci at genome-wide significance that have a genetic variant as confounder (P = 3.9 × 10−20 to 2.0 × 10−108, r2 = 0.036 to 0.221). Seven loci display CpG site-specific associations to metabotypes, but do not exhibit any underlying genetic signals (P = 9.2 × 10−14 to 2.7 × 10−27, r2 = 0.008 to 0.107). We further identify several groups of CpG loci that associate with a same metabotype, such as 4-vinylphenol sulfate and 4-androsten-3-beta,17-beta-diol disulfate. In these cases, the association between CpG-methylation and metabotype is likely the result of a common external environmental factor, including smoking. Our study shows that analysis of EWAS with large numbers of metabolic traits in large population cohorts are, in principle, feasible. Taken together, our data suggest that DNA methylation plays an important role in regulating human metabolism.
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22
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Altmaier E, Emeny RT, Krumsiek J, Lacruz ME, Lukaschek K, Häfner S, Kastenmüller G, Römisch-Margl W, Prehn C, Mohney RP, Evans AM, Milburn MV, Illig T, Adamski J, Theis F, Suhre K, Ladwig KH. Metabolomic profiles in individuals with negative affectivity and social inhibition: a population-based study of Type D personality. Psychoneuroendocrinology 2013; 38:1299-309. [PMID: 23237813 DOI: 10.1016/j.psyneuen.2012.11.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 11/09/2012] [Accepted: 11/10/2012] [Indexed: 12/27/2022]
Abstract
BACKGROUND Individuals with negative affectivity who are inhibited in social situations are characterized as distressed, or Type D, and have an increased risk of cardiovascular disease (CVD). The underlying biomechanisms that link this psychological affect to a pathological state are not well understood. This study applied a metabolomic approach to explore biochemical pathways that may contribute to the Type D personality. METHODS Type D personality was determined by the Type D Scale-14. Small molecule biochemicals were measured using two complementary mass-spectrometry based metabolomics platforms. Metabolic profiles of Type D and non-Type D participants within a population-based study in Southern Germany were compared in cross-sectional regression analyses. The PHQ-9 and GAD-7 instruments were also used to assess symptoms of depression and anxiety, respectively, within this metabolomic study. RESULTS 668 metabolites were identified in the serum of 1502 participants (age 32-77); 386 of these individuals were classified as Type D. While demographic and biomedical characteristics were equally distributed between the groups, a higher level of depression and anxiety was observed in Type D individuals. Significantly lower levels of the tryptophan metabolite kynurenine were associated with Type D (p-value corrected for multiple testing=0.042), while no significant associations could be found for depression and anxiety. A Gaussian graphical model analysis enabled the identification of four potentially interesting metabolite networks that are enriched in metabolites (androsterone sulfate, tyrosine, indoxyl sulfate or caffeine) that associate nominally with Type D personality. CONCLUSIONS This study identified novel biochemical pathways associated with Type D personality and demonstrates that the application of metabolomic approaches in population studies can reveal mechanisms that may contribute to psychological health and disease.
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Affiliation(s)
- Elisabeth Altmaier
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
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23
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Goek ON, Prehn C, Sekula P, Römisch-Margl W, Döring A, Gieger C, Heier M, Koenig W, Wang-Sattler R, Illig T, Suhre K, Adamski J, Köttgen A, Meisinger C. Metabolites associate with kidney function decline and incident chronic kidney disease in the general population. Nephrol Dial Transplant 2013; 28:2131-8. [PMID: 23739151 DOI: 10.1093/ndt/gft217] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Serum metabolites are associated cross-sectionally with kidney function in population-based studies. METHODS Using flow injection and liquid chromatography tandem mass spectrometry methods, we examined longitudinal associations of baseline concentrations of 140 metabolites and their 19 460 ratios with kidney function decline and chronic kidney disease (CKD) incidence over 7 years in 1104 participants of the Cooperative Health Research in the Region of Augsburg S4/F4 study. RESULTS Corrected for multiple testing, a significant association with annual change in the estimated glomerular filtration rate was observed for spermidine (P = 5.8 × 10(-7)) and two metabolite ratios, the phosphatidylcholine diacyl C42:5-to-phosphatidylcholine acyl-alkyl C36:0 ratio (P = 1.5 × 10(-6)) and the kynurenine-to-tryptophan ratio (P = 1.9 × 10(-6)). The kynurenine-to-tryptophan ratio was also associated with significantly higher incidence of CKD at the follow-up visit with an odds ratio of 1.36 per standard deviation increase; 95% confidence interval 1.11-1.66, P = 2.7 × 10(-3)). In separate analyses, the predictive ability of the metabolites was assessed: both the three significantly associated metabolite (ratios) as well as a panel of 35 metabolites selected from all metabolites in an unbiased fashion provided as much but not significantly more prognostic information than selected clinical predictors as judged by the area under the curve. CONCLUSIONS Baseline serum concentrations of spermidine and two metabolite ratios were associated with kidney function change over subsequent years in the general population. In separate analyses, baseline serum metabolites were able to predict incident CKD to a similar but not better extent than selected clinical parameters. Our longitudinal findings provide a basis for targeted studies of certain metabolic pathways, e.g. tryptophan metabolism, and their relation to kidney function decline.
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Affiliation(s)
- Oemer-Necmi Goek
- Division of Nephrology, University Medical Center Freiburg, Freiburg, Germany
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24
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Menni C, Zhai G, MacGregor A, Prehn C, Römisch-Margl W, Suhre K, Adamski J, Cassidy A, Illig T, Spector TD, Valdes AM. Targeted metabolomics profiles are strongly correlated with nutritional patterns in women. Metabolomics 2013; 9:506-514. [PMID: 23543136 PMCID: PMC3608890 DOI: 10.1007/s11306-012-0469-6] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 09/21/2012] [Indexed: 01/06/2023]
Abstract
Nutrition plays an important role in human metabolism and health. Metabolomics is a promising tool for clinical, genetic and nutritional studies. A key question is to what extent metabolomic profiles reflect nutritional patterns in an epidemiological setting. We assessed the relationship between metabolomic profiles and nutritional intake in women from a large cross-sectional community study. Food frequency questionnaires (FFQs) were applied to 1,003 women from the TwinsUK cohort with targeted metabolomic analyses of serum samples using the Biocrates Absolute-IDQ™ Kit p150 (163 metabolites). We analyzed seven nutritional parameters: coffee intake, garlic intake and nutritional scores derived from the FFQs summarizing fruit and vegetable intake, alcohol intake, meat intake, hypo-caloric dieting and a "traditional English" diet. We studied the correlation between metabolite levels and dietary intake patterns in the larger population and identified for each trait between 14 and 20 independent monozygotic twins pairs discordant for nutritional intake and replicated results in this set. Results from both analyses were then meta-analyzed. For the metabolites associated with nutritional patterns, we calculated heritability using structural equation modelling. 42 metabolite nutrient intake associations were statistically significant in the discovery samples (Bonferroni P < 4 × 10-5) and 11 metabolite nutrient intake associations remained significant after validation. We found the strongest associations for fruit and vegetables intake and a glycerophospholipid (Phosphatidylcholine diacyl C38:6, P = 1.39 × 10-9) and a sphingolipid (Sphingomyeline C26:1, P = 6.95 × 10-13). We also found significant associations for coffee (confirming a previous association with C10 reported in an independent study), garlic intake and hypo-caloric dieting. Using the twin study design we find that two thirds the metabolites associated with nutritional patterns have a significant genetic contribution, and the remaining third are solely environmentally determined. Our data confirm the value of metabolomic studies for nutritional epidemiologic research.
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Affiliation(s)
- Cristina Menni
- Department of Twin Research & Genetic Epidemiology, King’s College London, St Thomas Hospital, London, SE17EH UK
| | - Guangju Zhai
- Department of Twin Research & Genetic Epidemiology, King’s College London, St Thomas Hospital, London, SE17EH UK
- Faculty of Medicine, Memorial University of Newfoundland, St John’s, NL Canada
| | - Alexander MacGregor
- Department of Twin Research & Genetic Epidemiology, King’s College London, St Thomas Hospital, London, SE17EH UK
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Cornelia Prehn
- Helmholtz Zentrum München, Institute of Experimental Genetics, Genome Analysis Center, Neuherberg, Germany
| | - Werner Römisch-Margl
- Helmholtz Zentrum München, Institute of Bioinformatics and Systems Biology, Neuherberg, Germany
| | - Karsten Suhre
- Helmholtz Zentrum München, Institute of Bioinformatics and Systems Biology, Neuherberg, Germany
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, State of Qatar
- Faculty of Biology, Ludwig-Maximilians-Universität, Großhaderner Str. 2, Planegg-Martinsried, Germany
| | - Jerzy Adamski
- Helmholtz Zentrum München, Institute of Experimental Genetics, Genome Analysis Center, Neuherberg, Germany
- Lehrstuhl für Experimentelle Genetik, Technische Universität München, Freising-Weihenstephan, Germany
| | - Aedin Cassidy
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
- Hannover Unified Biobank, Hannover Medical School, Hannover, Germany
| | - Tim D. Spector
- Department of Twin Research & Genetic Epidemiology, King’s College London, St Thomas Hospital, London, SE17EH UK
| | - Ana M. Valdes
- Department of Twin Research & Genetic Epidemiology, King’s College London, St Thomas Hospital, London, SE17EH UK
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25
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Raffler J, Römisch-Margl W, Petersen AK, Pagel P, Blöchl F, Hengstenberg C, Illig T, Meisinger C, Stark K, Wichmann HE, Adamski J, Gieger C, Kastenmüller G, Suhre K. Identification and MS-assisted interpretation of genetically influenced NMR signals in human plasma. Genome Med 2013; 5:13. [PMID: 23414815 PMCID: PMC3706909 DOI: 10.1186/gm417] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 12/21/2012] [Accepted: 02/15/2013] [Indexed: 12/18/2022] Open
Abstract
Nuclear magnetic resonance spectroscopy (NMR) provides robust readouts of many metabolic parameters in one experiment. However, identification of clinically relevant markers in (1)H NMR spectra is a major challenge. Association of NMR-derived quantities with genetic variants can uncover biologically relevant metabolic traits. Using NMR data of plasma samples from 1,757 individuals from the KORA study together with 655,658 genetic variants, we show that ratios between NMR intensities at two chemical shift positions can provide informative and robust biomarkers. We report seven loci of genetic association with NMR-derived traits (APOA1, CETP, CPS1, GCKR, FADS1, LIPC, PYROXD2) and characterize these traits biochemically using mass spectrometry. These ratios may now be used in clinical studies.
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Affiliation(s)
- Johannes Raffler
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany ; Faculty of Biology, Ludwig-Maximilians-Universität, Großhaderner Straße 2, 82152 Planegg-Martinsried, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Ann-Kristin Petersen
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Philipp Pagel
- numares GmbH, Josef-Engert-Str. 9, 93053 Regensburg, Germany
| | - Florian Blöchl
- numares GmbH, Josef-Engert-Str. 9, 93053 Regensburg, Germany
| | - Christian Hengstenberg
- Klinik und Poliklinik für Innere Medizin II, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany ; Hannover Unified Biobank, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Klaus Stark
- Klinik und Poliklinik für Innere Medizin II, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Germany ; Department of Epidemiology and Preventive Medicine, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Germany
| | - H-Erich Wichmann
- Institute of Epidemiology I, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Christian Gieger
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany ; Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, P.O. BOX 24144, Doha, Qatar
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26
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Krumsiek J, Suhre K, Evans AM, Mitchell MW, Mohney RP, Milburn MV, Wägele B, Römisch-Margl W, Illig T, Adamski J, Gieger C, Theis FJ, Kastenmüller G. Mining the unknown: a systems approach to metabolite identification combining genetic and metabolic information. PLoS Genet 2012; 8:e1003005. [PMID: 23093944 PMCID: PMC3475673 DOI: 10.1371/journal.pgen.1003005] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 08/16/2012] [Indexed: 12/22/2022] Open
Abstract
Recent genome-wide association studies (GWAS) with metabolomics data linked genetic variation in the human genome to differences in individual metabolite levels. A strong relevance of this metabolic individuality for biomedical and pharmaceutical research has been reported. However, a considerable amount of the molecules currently quantified by modern metabolomics techniques are chemically unidentified. The identification of these “unknown metabolites” is still a demanding and intricate task, limiting their usability as functional markers of metabolic processes. As a consequence, previous GWAS largely ignored unknown metabolites as metabolic traits for the analysis. Here we present a systems-level approach that combines genome-wide association analysis and Gaussian graphical modeling with metabolomics to predict the identity of the unknown metabolites. We apply our method to original data of 517 metabolic traits, of which 225 are unknowns, and genotyping information on 655,658 genetic variants, measured in 1,768 human blood samples. We report previously undescribed genotype–metabotype associations for six distinct gene loci (SLC22A2, COMT, CYP3A5, CYP2C18, GBA3, UGT3A1) and one locus not related to any known gene (rs12413935). Overlaying the inferred genetic associations, metabolic networks, and knowledge-based pathway information, we derive testable hypotheses on the biochemical identities of 106 unknown metabolites. As a proof of principle, we experimentally confirm nine concrete predictions. We demonstrate the benefit of our method for the functional interpretation of previous metabolomics biomarker studies on liver detoxification, hypertension, and insulin resistance. Our approach is generic in nature and can be directly transferred to metabolomics data from different experimental platforms. Genome-wide association studies on metabolomics data have demonstrated that genetic variation in metabolic enzymes and transporters leads to concentration changes in the respective metabolite levels. The conventional goal of these studies is the detection of novel interactions between the genome and the metabolic system, providing valuable insights for both basic research as well as clinical applications. In this study, we borrow the metabolomics GWAS concept for a novel, entirely different purpose. Metabolite measurements frequently produce signals where a certain substance can be reliably detected in the sample, but it has not yet been elucidated which specific metabolite this signal actually represents. The concept is comparable to a fingerprint: each one is uniquely identifiable, but as long as it is not registered in a database one cannot tell to whom this fingerprint belongs. Obviously, this issue tremendously reduces the usability of a metabolomics analyses. The genetic associations of such an “unknown,” however, give us concrete evidence of the metabolic pathway this substance is most probably involved in. Moreover, we complement the approach with a specific measure of correlation between metabolites, providing further evidence of the metabolic processes of the unknown. For a number of cases, this even allows for a concrete identity prediction, which we then experimentally validate in the lab.
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Affiliation(s)
- Jan Krumsiek
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, Qatar
| | - Anne M. Evans
- Metabolon, Research Triangle Park, North Carolina, United States of America
| | | | - Robert P. Mohney
- Metabolon, Research Triangle Park, North Carolina, United States of America
| | - Michael V. Milburn
- Metabolon, Research Triangle Park, North Carolina, United States of America
| | - Brigitte Wägele
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Department of Genome-Oriented Bioinformatics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
- Biobank of the Hanover Medical School, Hanover Medical School, Hanover, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Neuherberg, Germany
- Lehrstuhl für Experimentelle Genetik, Technische Universität München, Freising-Weihenstephan, Germany
| | - Christian Gieger
- Institute of Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Fabian J. Theis
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
- Department of Mathematics, Technische Universität München, Garching, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Neuherberg, Germany
- * E-mail:
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Renner S, Römisch-Margl W, Prehn C, Krebs S, Adamski J, Göke B, Blum H, Suhre K, Roscher AA, Wolf E. Changing metabolic signatures of amino acids and lipids during the prediabetic period in a pig model with impaired incretin function and reduced β-cell mass. Diabetes 2012; 61:2166-75. [PMID: 22492530 PMCID: PMC3402307 DOI: 10.2337/db11-1133] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Diabetes is generally diagnosed too late. Therefore, biomarkers indicating early stages of β-cell dysfunction and mass reduction would facilitate timely counteraction. Transgenic pigs expressing a dominant-negative glucose-dependent insulinotropic polypeptide receptor (GIPR(dn)) reveal progressive deterioration of glucose control and reduction of β-cell mass, providing a unique opportunity to study metabolic changes during the prediabetic period. Plasma samples from intravenous glucose tolerance tests of 2.5- and 5-month-old GIPR(dn) transgenic and control animals were analyzed for 163 metabolites by targeted mass spectrometry. Analysis of variance revealed that 26 of 163 parameters were influenced by the interaction Genotype × Age (P ≤ 0.0001) and thus are potential markers for progression within the prediabetic state. Among them, the concentrations of seven amino acids (Phe, Orn, Val, xLeu, His, Arg, and Tyr) were increased in 2.5-month-old but decreased in 5-month-old GIPR(dn) transgenic pigs versus controls. Furthermore, specific sphingomyelins, diacylglycerols, and ether phospholipids were decreased in plasma of 5-month-old GIPR(dn) transgenic pigs. Alterations in plasma metabolite concentrations were associated with liver transcriptome changes in relevant pathways. The concentrations of a number of plasma amino acids and lipids correlated significantly with β-cell mass of 5-month-old pigs. These metabolites represent candidate biomarkers of early phases of β-cell dysfunction and mass reduction.
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Affiliation(s)
- Simone Renner
- Chair for Molecular Animal Breeding and Biotechnology, and Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Stefan Krebs
- Chair for Molecular Animal Breeding and Biotechnology, and Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Experimental Genetics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
| | - Burkhard Göke
- Medical Clinic II, Klinikum Grosshadern, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Helmut Blum
- Chair for Molecular Animal Breeding and Biotechnology, and Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Faculty of Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City-Qatar Foundation, Doha, Qatar
| | - Adelbert A. Roscher
- Children’s Research Center, Dr. von Hauner Children’s Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Eckhard Wolf
- Chair for Molecular Animal Breeding and Biotechnology, and Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
- Corresponding author: Eckhard Wolf,
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28
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Goek ON, Döring A, Gieger C, Heier M, Koenig W, Prehn C, Römisch-Margl W, Wang-Sattler R, Illig T, Suhre K, Sekula P, Zhai G, Adamski J, Köttgen A, Meisinger C. Serum metabolite concentrations and decreased GFR in the general population. Am J Kidney Dis 2012; 60:197-206. [PMID: 22464876 DOI: 10.1053/j.ajkd.2012.01.014] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 01/12/2012] [Indexed: 01/05/2023]
Abstract
BACKGROUND Metabolites such as creatinine and urea are established kidney function markers. High-throughput metabolomic studies have not been reported in large general population samples spanning normal kidney function and chronic kidney disease (CKD). STUDY DESIGN Cross-sectional observational studies of the general population. SETTING AND PARTICIPANTS 2 independent samples: KORA F4 (discovery sample, n = 3,011) and Twins UK (validation sample, n = 984). EXPOSURE FACTORS: 151 serum metabolites, quantified by targeted mass spectrometry. OUTCOMES AND MEASUREMENTS Metabolites and their 22,650 ratios were analyzed by multivariable-adjusted linear regression for their association with glomerular filtration rate (eGFR), estimated separately from creatinine and cystatin C levels by CKD-EPI (CKD Epidemiology Collaboration) equations. After correction for multiple testing, significant metabolites (P < 3.3 × 10(-4) for single metabolites; P < 2.2 × 10(-6) for ratios) were meta-analyzed with independent data from the TwinsUK Study. RESULTS Replicated associations with eGFR were observed for 22 metabolites and 516 metabolite ratios. Pooled P values ranged from 7.1 × 10(-7) to 1.8 × 10(-69) for the replicated single metabolites. Acylcarnitines such as glutarylcarnitine were associated inversely with eGFR (-3.73 mL/min/1.73 m(2) per standard deviation [SD] increase, pooled P = 1.8 × 10(-69)). The replicated ratio with the strongest association was the ratio of serine to glutarylcarnitine (P = 3.6 × 10(-81)). Almost all replicated phenotypes associated with decreased eGFR (<60 mL/min/1.73 m(2); n = 172 cases) in KORA F4: per 1-SD increment, ORs ranged from 0.29-2.06. Across categories of a metabolic score consisting of 3 uncorrelated metabolites, the prevalence of decreased eGFR increased from 3% to 53%. LIMITATIONS Cross-sectional study design, GFR was estimated, limited number of metabolites. CONCLUSIONS Distinct metabolic phenotypes were reproducibly associated with eGFR in 2 separate population studies. They may provide novel insights into renal metabolite handling, improve understanding of pathophysiology, or aid in the diagnosis of kidney disease. Longitudinal studies are needed to clarify whether changes in metabolic phenotypes precede or result from kidney function impairment.
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Affiliation(s)
- Oemer-Necmi Goek
- Division of Nephrology, University Medical Center Freiburg, Freiburg, Germany
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29
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Wahl S, Yu Z, Kleber M, Singmann P, Holzapfel C, He Y, Mittelstrass K, Polonikov A, Prehn C, Römisch-Margl W, Adamski J, Suhre K, Grallert H, Illig T, Wang-Sattler R, Reinehr T. Childhood obesity is associated with changes in the serum metabolite profile. Obes Facts 2012; 5:660-70. [PMID: 23108202 DOI: 10.1159/000343204] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 06/29/2012] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE The human serum metabolite profile is reflective of metabolic processes, including pathophysiological changes characteristic of diseases. Therefore, investigation of serum metabolite concentrations in obese children might give new insights into biological mechanisms associated with childhood obesity. METHODS Serum samples of 80 obese and 40 normal-weight children between 6 and 15 years of age were analyzed using a mass spectrometry-based metabolomics approach targeting 163 metabolites. Metabolite concentrations and metabolite ratios were compared between obese and normal-weight children as well as between children of different pubertal stages. RESULTS Metabolite concentration profiles of obese children could be distinguished from those of normal-weight children. After correction for multiple testing, we observed 14 metabolites (glutamine, methionine, proline, nine phospholipids, and two acylcarnitines, p < 3.8 × 10⁻⁴) and 69 metabolite ratios (p < 6.0 × 10⁻⁶) to be significantly altered in obese children. The identified metabolite markers are indicative of oxidative stress and of changes in sphingomyelin metabolism, in β-oxidation, and in pathways associated with energy expenditure. In contrast, pubertal stage was not associated with metabolite concentration differences. CONCLUSION Our study shows that childhood obesity influences the composition of the serum metabolome. If replicated in larger studies, the altered metabolites might be considered as potential biomarkers in the generation of new hypotheses on the biological mechanisms behind obesity.
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Affiliation(s)
- Simone Wahl
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
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30
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Petersen AK, Stark K, Musameh MD, Nelson CP, Römisch-Margl W, Kremer W, Raffler J, Krug S, Skurk T, Rist MJ, Daniel H, Hauner H, Adamski J, Tomaszewski M, Döring A, Peters A, Wichmann HE, Kaess BM, Kalbitzer HR, Huber F, Pfahlert V, Samani NJ, Kronenberg F, Dieplinger H, Illig T, Hengstenberg C, Suhre K, Gieger C, Kastenmüller G. Genetic associations with lipoprotein subfractions provide information on their biological nature. Hum Mol Genet 2011; 21:1433-43. [PMID: 22156577 DOI: 10.1093/hmg/ddr580] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Adverse levels of lipoproteins are highly heritable and constitute risk factors for cardiovascular outcomes. Hitherto, genome-wide association studies revealed 95 lipid-associated loci. However, due to the small effect sizes of these associations large sample numbers (>100 000 samples) were needed. Here we show that analyzing more refined lipid phenotypes, namely lipoprotein subfractions, can increase the number of significantly associated loci compared with bulk high-density lipoprotein and low-density lipoprotein analysis in a study with identical sample numbers. Moreover, lipoprotein subfractions provide novel insight into the human lipid metabolism. We measured 15 lipoprotein subfractions (L1-L15) in 1791 samples using (1)H-NMR (nuclear magnetic resonance) spectroscopy. Using cluster analyses, we quantified inter-relationships among lipoprotein subfractions. Additionally, we analyzed associations with subfractions at known lipid loci. We identified five distinct groups of subfractions: one (L1) was only marginally captured by serum lipids and therefore extends our knowledge of lipoprotein biochemistry. During a lipid-tolerance test, L1 lost its special position. In the association analysis, we found that eight loci (LIPC, CETP, PLTP, FADS1-2-3, SORT1, GCKR, APOB, APOA1) were associated with the subfractions, whereas only four loci (CETP, SORT1, GCKR, APOA1) were associated with serum lipids. For LIPC, we observed a 10-fold increase in the variance explained by our regression models. In conclusion, NMR-based fine mapping of lipoprotein subfractions provides novel information on their biological nature and strengthens the associations with genetic loci. Future clinical studies are now needed to investigate their biomedical relevance.
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Affiliation(s)
- Ann-Kristin Petersen
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, Neuherberg 85764, Germany
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31
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Suhre K, Shin SY, Petersen AK, Mohney RP, Meredith D, Wägele B, Altmaier E, Deloukas P, Erdmann J, Grundberg E, Hammond CJ, de Angelis MH, Kastenmüller G, Köttgen A, Kronenberg F, Mangino M, Meisinger C, Meitinger T, Mewes HW, Milburn MV, Prehn C, Raffler J, Ried JS, Römisch-Margl W, Samani NJ, Small KS, Wichmann HE, Zhai G, Illig T, Spector TD, Adamski J, Soranzo N, Gieger C. Human metabolic individuality in biomedical and pharmaceutical research. Nature 2011; 477:54-60. [PMID: 21886157 DOI: 10.1038/nature10354] [Citation(s) in RCA: 792] [Impact Index Per Article: 60.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 06/30/2011] [Indexed: 01/08/2023]
Abstract
Genome-wide association studies (GWAS) have identified many risk loci for complex diseases, but effect sizes are typically small and information on the underlying biological processes is often lacking. Associations with metabolic traits as functional intermediates can overcome these problems and potentially inform individualized therapy. Here we report a comprehensive analysis of genotype-dependent metabolic phenotypes using a GWAS with non-targeted metabolomics. We identified 37 genetic loci associated with blood metabolite concentrations, of which 25 show effect sizes that are unusually high for GWAS and account for 10-60% differences in metabolite levels per allele copy. Our associations provide new functional insights for many disease-related associations that have been reported in previous studies, including those for cardiovascular and kidney disorders, type 2 diabetes, cancer, gout, venous thromboembolism and Crohn's disease. The study advances our knowledge of the genetic basis of metabolic individuality in humans and generates many new hypotheses for biomedical and pharmaceutical research.
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Affiliation(s)
- Karsten Suhre
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Faculty of Biology, Ludwig-Maximilians-Universität, Planegg-Martinsried, Germany.,Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Education City - Qatar Foundation, Doha, Qatar
| | - So-Youn Shin
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton UK
| | - Ann-Kristin Petersen
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | - David Meredith
- School of Life Sciences, Oxford Brookes University, Headington, Oxford, UK
| | - Brigitte Wägele
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Department of Genome-oriented Bioinformatics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
| | - Elisabeth Altmaier
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | - Panos Deloukas
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton UK
| | | | - Elin Grundberg
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton UK.,Department of Twin Research & Genetic Epidemiology, King's College London, UK
| | | | - Martin Hrabé de Angelis
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Experimental Genetics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Anna Köttgen
- Renal Division, University Hospital Freiburg, Germany
| | - Florian Kronenberg
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Innsbruck Medical University, Innsbruck, Austria
| | - Massimo Mangino
- Department of Twin Research & Genetic Epidemiology, King's College London, UK
| | - Christa Meisinger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Thomas Meitinger
- Institute of Human Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Human Genetics, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Hans-Werner Mewes
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Department of Genome-oriented Bioinformatics, Life and Food Science Center Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
| | | | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Johannes Raffler
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Faculty of Biology, Ludwig-Maximilians-Universität, Planegg-Martinsried, Germany
| | - Janina S Ried
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton UK
| | - Werner Römisch-Margl
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester, and Leicester NIHR Biomedical Research Unit in Cardiovascular Disease, Glenfield Hospital, Leicester, UK
| | - Kerrin S Small
- Department of Twin Research & Genetic Epidemiology, King's College London, UK
| | - H-Erich Wichmann
- Institute of Epidemiology I, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Medical Informatics, Biometry and Epidemiology, Chair of Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany.,Klinikum Grosshadern, Munich, Germany
| | - Guangju Zhai
- Department of Twin Research & Genetic Epidemiology, King's College London, UK
| | - Thomas Illig
- Unit for Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Tim D Spector
- Department of Twin Research & Genetic Epidemiology, King's College London, UK
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Nicole Soranzo
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton UK
| | - Christian Gieger
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
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Suhre K, Römisch-Margl W, de Angelis MH, Adamski J, Luippold G, Augustin R. Identification of a potential biomarker for FABP4 inhibition: the power of lipidomics in preclinical drug testing. ACTA ACUST UNITED AC 2011; 16:467-75. [PMID: 21543640 DOI: 10.1177/1087057111402200] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The fatty acid binding protein 4 (FABP4) belongs to the family of lipid chaperones that control intracellular fluxes and compartmentalization of their respective ligands (e.g., fatty acids). FABP4, which is almost exclusively expressed in adipocytes and macrophages, contributes to the development of insulin resistance and atherosclerosis in mice. Lack of FABP4 protects against the development of insulin resistance associated with genetic or diet-induced obesity in mice. Furthermore, total or macrophage-specific FABP4 deficiency is protective against atherosclerosis in apolipoprotein E-deficient mice. The FABP4 small-molecule inhibitor BMS309403 has demonstrated efficacy in mouse models for type 2 diabetes mellitus and atherosclerosis, resembling phenotypes of mice with FABP4 deficiency. However, despite the therapeutically attractive long-term effects of FABP4 inhibition, an acute biomarker for drug action is lacking. The authors applied mass spectrometry lipidomics analysis to in vitro and in vivo (plasma and adipose tissue) samples upon inhibitor treatment. They report the identification of a potential biomarker for acute in vivo FABP4 inhibition that is applicable for further investigations and can be implemented in simple and fast-flow injection mass spectrometry assays. In addition, this approach can be considered a proof-of-principle study that can be applied to other lipid-pathway targeting mechanisms.
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Affiliation(s)
- Karsten Suhre
- 1Institute for Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
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Haigney A, Lukacs A, Zhao RK, Stelling AL, Brust R, Kim RR, Kondo M, Clark I, Towrie M, Greetham GM, Illarionov B, Bacher A, Römisch-Margl W, Fischer M, Meech SR, Tonge PJ. Ultrafast infrared spectroscopy of an isotope-labeled photoactivatable flavoprotein. Biochemistry 2011; 50:1321-8. [PMID: 21218799 DOI: 10.1021/bi101589a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The blue light using flavin (BLUF) domain photosensors, such as the transcriptional antirepressor AppA, utilize a noncovalently bound flavin as the chromophore for photoreception. Since the isoalloxazine ring of the chromophore is unable to undergo large-scale structural change upon light absorption, there is intense interest in understanding how the BLUF protein matrix senses and responds to flavin photoexcitation. Light absorption is proposed to result in alterations in the hydrogen-bonding network that surrounds the flavin chromophore on an ultrafast time scale, and the structural changes caused by photoexcitation are being probed by vibrational spectroscopy. Here we report ultrafast time-resolved infrared spectra of the AppA BLUF domain (AppA(BLUF)) reconstituted with isotopically labeled riboflavin (Rf) and flavin adenine dinucleotide (FAD), which permit the first unambiguous assignment of ground and excited state modes arising directly from the flavin carbonyl groups. Studies of model compounds and DFT calculations of the ground state vibrational spectra reveal the sensitivity of these modes to their environment, indicating that they can be used as probes of structural dynamics.
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Affiliation(s)
- Allison Haigney
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA
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Altmaier E, Kastenmüller G, Römisch-Margl W, Thorand B, Weinberger KM, Illig T, Adamski J, Döring A, Suhre K. Questionnaire-based self-reported nutrition habits associate with serum metabolism as revealed by quantitative targeted metabolomics. Eur J Epidemiol 2010; 26:145-56. [DOI: 10.1007/s10654-010-9524-7] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 11/18/2010] [Indexed: 11/30/2022]
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Fuchs H, Gailus-Durner V, Adler T, Aguilar-Pimentel JA, Becker L, Calzada-Wack J, Da Silva-Buttkus P, Neff F, Götz A, Hans W, Hölter SM, Horsch M, Kastenmüller G, Kemter E, Lengger C, Maier H, Matloka M, Möller G, Naton B, Prehn C, Puk O, Rácz I, Rathkolb B, Römisch-Margl W, Rozman J, Wang-Sattler R, Schrewe A, Stöger C, Tost M, Adamski J, Aigner B, Beckers J, Behrendt H, Busch DH, Esposito I, Graw J, Illig T, Ivandic B, Klingenspor M, Klopstock T, Kremmer E, Mempel M, Neschen S, Ollert M, Schulz H, Suhre K, Wolf E, Wurst W, Zimmer A, Hrabě de Angelis M. Mouse phenotyping. Methods 2010; 53:120-35. [PMID: 20708688 DOI: 10.1016/j.ymeth.2010.08.006] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 08/06/2010] [Accepted: 08/06/2010] [Indexed: 12/13/2022] Open
Abstract
Model organisms like the mouse are important tools to learn more about gene function in man. Within the last 20 years many mutant mouse lines have been generated by different methods such as ENU mutagenesis, constitutive and conditional knock-out approaches, knock-down, introduction of human genes, and knock-in techniques, thus creating models which mimic human conditions. Due to pleiotropic effects, one gene may have different functions in different organ systems or time points during development. Therefore mutant mouse lines have to be phenotyped comprehensively in a highly standardized manner to enable the detection of phenotypes which might otherwise remain hidden. The German Mouse Clinic (GMC) has been established at the Helmholtz Zentrum München as a phenotyping platform with open access to the scientific community (www.mousclinic.de; [1]). The GMC is a member of the EUMODIC consortium which created the European standard workflow EMPReSSslim for the systemic phenotyping of mouse models (http://www.eumodic.org/[2]).
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Affiliation(s)
- Helmut Fuchs
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764 München/Neuherberg, Germany
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Schramek N, Wang H, Römisch-Margl W, Keil B, Radykewicz T, Winzenhörlein B, Beerhues L, Bacher A, Rohdich F, Gershenzon J, Liu B, Eisenreich W. Artemisinin biosynthesis in growing plants of Artemisia annua. A 13CO2 study. Phytochemistry 2010; 71:179-87. [PMID: 19932496 DOI: 10.1016/j.phytochem.2009.10.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 10/08/2009] [Accepted: 10/19/2009] [Indexed: 05/18/2023]
Abstract
Artemisinin from Artemisia annua has become one of the most important drugs for malaria therapy. Its biosynthesis proceeds via amorpha-4,11-diene, but it is still unknown whether the isoprenoid precursors units are obtained by the mevalonate pathway or the more recently discovered non-mevalonate pathway. In order to address that question, a plant of A. annua was grown in an atmosphere containing 700 ppm of 13CO2 for 100 min. Following a chase period of 10 days, artemisinin was isolated and analyzed by 13C NMR spectroscopy. The isotopologue pattern shows that artemisinin was predominantly biosynthesized from (E,E)-farnesyl diphosphate (FPP) whose central isoprenoid unit had been obtained via the non-mevalonate pathway. The isotopologue data confirm the previously proposed mechanisms for the cyclization of (E,E)-FPP to amorphadiene and its oxidative conversion to artemisinin. They also support deprotonation of a terminal allyl cation intermediate as the final step in the enzymatic conversion of FPP to amorphadiene and show that either of the two methyl groups can undergo deprotonation.
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Affiliation(s)
- Nicholas Schramek
- Lehrstuhl für Biochemie, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany
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Altmaier E, Kastenmüller G, Römisch-Margl W, Thorand B, Weinberger KM, Adamski J, Illig T, Döring A, Suhre K. Variation in the human lipidome associated with coffee consumption as revealed by quantitative targeted metabolomics. Mol Nutr Food Res 2010; 53:1357-65. [PMID: 19810022 DOI: 10.1002/mnfr.200900116] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The effect of coffee consumption on human health is still discussed controversially. Here, we report results from a metabolomics study of coffee consumption, where we measured 363 metabolites in blood serum of 284 male participants of the Cooperative Health Research in the Region of Augsburg study population, aged between 55 and 79 years. A statistical analysis of the association of metabolite concentrations and the number of cups of coffee consumed per day showed that coffee intake is positively associated with two classes of sphingomyelins, one containing a hydroxy-group (SM(OH)) and the other having an additional carboxy-group (SM(OH,COOH)). In contrast, long- and medium-chain acylcarnitines were found to decrease with increasing coffee consumption. It is noteworthy that the concentration of total cholesterol also rises with an increased coffee intake in this study group. The association observed here between these hydroxylated and carboxylated sphingolipid species and coffee intake may be induced by changes in the cholesterol levels. Alternatively, these molecules may act as scavengers of oxidative species, which decrease with higher coffee intake. In summary, we demonstrate strong positive associations between coffee consumption and two classes of sphingomyelins and a negative association between coffee consumption and long- and medium-chain acylcarnitines.
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Affiliation(s)
- Elisabeth Altmaier
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
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Römisch-Margl W, Eisenreich W, Haase I, Bacher A, Fischer M. 2,5-diamino-6-ribitylamino-4(3H)-pyrimidinone 5'-phosphate synthases of fungi and archaea. FEBS J 2008; 275:4403-14. [PMID: 18671734 DOI: 10.1111/j.1742-4658.2008.06586.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The pathway of riboflavin (vitamin B2) biosynthesis is significantly different in archaea, eubacteria, fungi and plants. Specifically, the first committed intermediate, 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate, can either undergo hydrolytic cleavage of the position 2 amino group by a deaminase (in plants and most eubacteria) or reduction of the ribose side chain by a reductase (in fungi and archaea). We compare 2,5-diamino-6-ribitylamino-4(3H)-pyrimidinone 5'-phosphate synthases from the yeast Candida glabrata, the archaeaon Methanocaldococcus jannaschii and the eubacterium Aquifex aeolicus. All three enzymes convert 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate into 2,5-diamino-6-ribitylamino-4(3H)-pyrimidinone 5'-phosphate, as shown by 13C-NMR spectroscopy using [2,1',2',3',4',5'-13C6]2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate as substrate. The beta anomer was found to be the authentic substrate, and the alpha anomer could serve as substrate subsequent to spontaneous anomerisation. The M. jannaschii and C. glabrata enzymes were shown to be A-type reductases catalysing the transfer of deuterium from the 4(R) position of NADPH to the 1' (S) position of the substrate. These results are in agreement with the known three-dimensional structure of the M. jannaschii enzyme.
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Affiliation(s)
- Werner Römisch-Margl
- Lehrstuhl für Organische Chemie und Biochemie, Technische Universität München, Garching, Germany
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Eisenreich W, Joshi M, Illarionov B, Richter G, Römisch-Margl W, Müller F, Bacher A, Fischer M. 13C Isotopologue editing of FMN bound to phototropin domains. FEBS J 2007; 274:5876-90. [PMID: 17944933 DOI: 10.1111/j.1742-4658.2007.06111.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The plant blue light receptor phototropin comprises a protein kinase domain and two FMN-binding LOV domains (LOV1 and LOV2). Blue light irradiation of recombinant LOV domains is conducive to the addition of a cysteinyl thiolate group to carbon 4a of the FMN chromophore, and spontaneous cleavage of that photoadduct completes the photocycle of the receptor. The present study is based on (13)C NMR signal modulation observed after reconstitution of LOV domains of different origins with random libraries of (13)C-labeled FMN isotopologues. Using this approach, all (13)C signals of FMN bound to LOV1 and LOV2 domains of Avena sativa and to the LOV2 domain of the fern, Adiantum capillus-veneris, could be unequivocally assigned under dark and under blue light irradiation conditions. (13)C Chemical shifts of FMN are shown to be differently modulated by complexation with the LOV domains under study, indicating slight differences in the binding interactions of FMN and the apoproteins.
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Affiliation(s)
- Wolfgang Eisenreich
- Lehrstuhl für Organische Chemie und Biochemie, Technische Universität München, Garching, Germany.
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Römisch-Margl W, Schramek N, Radykewicz T, Ettenhuber C, Eylert E, Huber C, Römisch-Margl L, Schwarz C, Dobner M, Demmel N, Winzenhörlein B, Bacher A, Eisenreich W. 13CO2 as a universal metabolic tracer in isotopologue perturbation experiments. Phytochemistry 2007; 68:2273-89. [PMID: 17507062 DOI: 10.1016/j.phytochem.2007.03.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2007] [Revised: 03/20/2007] [Accepted: 03/21/2007] [Indexed: 05/15/2023]
Abstract
A tobacco plant was illuminated for 5h in an atmosphere containing (13)CO(2) and then maintained for 10 days under standard greenhouse conditions. Nicotine, glucose, and amino acids from proteins were isolated chromatographically. Isotopologue abundances of isolated metabolites were determined quantitatively by NMR spectroscopy and mass spectrometry. The observed non-stochastic isotopologue patterns indicate (i) formation of multiply labeled photosynthetic carbohydrates during the (13)CO(2) pulse phase followed by (ii) partial catabolism of the primary photosynthetic products, and (iii) recombination of the (13)C-labeled fragments with unlabeled intermediary metabolites during the chase period. The detected and simulated isotopologue profiles of glucose and amino acids reflect carbon partitioning that is dominated by the Calvin cycle and glycolysis/glucogenesis. Retrobiosynthetic analysis of the nicotine pattern is in line with its known formation from nicotinic acid and putrescine via aspartate, glyceraldehyde phosphate and alpha-ketoglutarate as basic building blocks. The study demonstrates that pulse/chase labeling with (13)CO(2) as precursor is a powerful tool for the analysis of quantitative aspects of plant metabolism in completely unperturbed whole plants.
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Affiliation(s)
- Werner Römisch-Margl
- Lehrstuhl für Organische Chemie und Biochemie, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching, Germany
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