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Giampieri E, Remondini D, Bacalini MG, Garagnani P, Pirazzini C, Yani SL, Giuliani C, Menichetti G, Zironi I, Sala C, Capri M, Franceschi C, Bürkle A, Castellani G. Statistical strategies and stochastic predictive models for the MARK-AGE data. Mech Ageing Dev 2015. [PMID: 26209580 DOI: 10.1016/j.mad.2015.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 11/30/2022]
Abstract
MARK-AGE aims at the identification of biomarkers of human aging capable of discriminating between the chronological age and the effective functional status of the organism. To achieve this, given the structure of the collected data, a proper statistical analysis has to be performed, as the structure of the data are non trivial and the number of features under study is near to the number of subjects used, requiring special care to avoid overfitting. Here we described some of the possible strategies suitable for this analysis. We also include a description of the main techniques used, to explain and justify the selected strategies. Among other possibilities, we suggest to model and analyze the data with a three step strategy.
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Affiliation(s)
- Enrico Giampieri
- Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Physics and Astronomy Department, Viale Berti Pichat 6/2, University of Bologna, Bologna, Italy.
| | - Daniel Remondini
- Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Physics and Astronomy Department, Viale Berti Pichat 6/2, University of Bologna, Bologna, Italy
| | - Maria Giulia Bacalini
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy
| | - Paolo Garagnani
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy
| | - Chiara Pirazzini
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy
| | - Stella Lukas Yani
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Institute for Biomedical Aging Research, University of Innsbruck, Austria
| | - Cristina Giuliani
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy
| | - Giulia Menichetti
- Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Physics and Astronomy Department, Viale Berti Pichat 6/2, University of Bologna, Bologna, Italy
| | - Isabella Zironi
- Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Physics and Astronomy Department, Viale Berti Pichat 6/2, University of Bologna, Bologna, Italy
| | - Claudia Sala
- Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Physics and Astronomy Department, Viale Berti Pichat 6/2, University of Bologna, Bologna, Italy
| | - Miriam Capri
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine, Via S. Giacomo, 12 University of Bologna, Bologna, Italy; Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy
| | - Alexander Bürkle
- Molecular Toxicology Group, Department of Biology, University of Konstanz, 78457 Konstanz, Germany
| | - Gastone Castellani
- Interdepartmental Center Galvani "CIG", Via Selmi, 3 University of Bologna, Bologna, Italy; Physics and Astronomy Department, Viale Berti Pichat 6/2, University of Bologna, Bologna, Italy
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Bürkle A, Moreno-Villanueva M, Bernhard J, Blasco M, Zondag G, Hoeijmakers JHJ, Toussaint O, Grubeck-Loebenstein B, Mocchegiani E, Collino S, Gonos ES, Sikora E, Gradinaru D, Dollé M, Salmon M, Kristensen P, Griffiths HR, Libert C, Grune T, Breusing N, Simm A, Franceschi C, Capri M, Talbot D, Caiafa P, Friguet B, Slagboom PE, Hervonen A, Hurme M, Aspinall R. MARK-AGE biomarkers of ageing. Mech Ageing Dev 2015; 151:2-12. [PMID: 25818235 DOI: 10.1016/j.mad.2015.03.006] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [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: 12/02/2014] [Revised: 03/19/2015] [Accepted: 03/21/2015] [Indexed: 01/29/2023]
Abstract
Many candidate biomarkers of human ageing have been proposed in the scientific literature but in all cases their variability in cross-sectional studies is considerable, and therefore no single measurement has proven to serve a useful marker to determine, on its own, biological age. A plausible reason for this is the intrinsic multi-causal and multi-system nature of the ageing process. The recently completed MARK-AGE study was a large-scale integrated project supported by the European Commission. The major aim of this project was to conduct a population study comprising about 3200 subjects in order to identify a set of biomarkers of ageing which, as a combination of parameters with appropriate weighting, would measure biological age better than any marker in isolation.
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Affiliation(s)
- Alexander Bürkle
- Molecular Toxicology Group, Department of Biology, Box 628, University of Konstanz, 78457 Konstanz, Germany.
| | - María Moreno-Villanueva
- Molecular Toxicology Group, Department of Biology, Box 628, University of Konstanz, 78457 Konstanz, Germany
| | | | - María Blasco
- Spanish National Cancer Research Centre (CNIO), 3 Melchor Fernandez Almagro, 28029 Madrid, Spain
| | | | - Jan H J Hoeijmakers
- Department of Genetics, Erasmus University Medical Center, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands
| | - Olivier Toussaint
- University of Namur, Research Unit on Cellular Biology, Rue de Bruxelles, 61, Namur B-5000, Belgium
| | - Beatrix Grubeck-Loebenstein
- Research Institute for Biomedical Aging Research, University of Innsbruck, Rennweg, 10, 6020 Innsbruck, Austria
| | - Eugenio Mocchegiani
- Translational Research Center of Nutrition and Ageing, IRCCS-INRCA, Via Birarelli 8, 60121 Ancona, Italy
| | - Sebastiano Collino
- Nestlé Institute of Health Sciences SA, Molecular Biomarkers, EPFL Innovation Park, 1015 Lausanne, Switzerland
| | - Efstathios S Gonos
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, Athens, Greece
| | - Ewa Sikora
- Laboratory of the Molecular Bases of Ageing, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur street, 02-093 Warsaw, Poland
| | - Daniela Gradinaru
- Ana Aslan - National Institute of Gerontology and Geriatrics, Bucharest, Romania
| | - Martijn Dollé
- National Institute for Public Health and the Environment (RIVM), Centre for Prevention and Health Services Research, P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Michel Salmon
- Straticell, Science Park Crealys, Rue Jean Sonet 10, 5032 Les Isnes, Belgium
| | - Peter Kristensen
- Department of Engineering - BCE Protein Engineering, Gustav Wiedsvej 10, 8000 Aarhus, Denmark
| | - Helen R Griffiths
- Life and Health Sciences, Aston Research Centre for Healthy Ageing, Aston University, Birmingham, UK
| | - Claude Libert
- Department for Molecular Biomedical Research, VIB, Ghent, Belgium
| | - Tilman Grune
- Institute of Nutritional Medicine, University of Hohenheim, 70593 Stuttgart, Germany; Department of Nutritional Toxicology, Friedrich Schiller University Jena, Dornburger Str. 24, 07743 Jena, Germany
| | - Nicolle Breusing
- Institute of Nutritional Medicine, University of Hohenheim, 70593 Stuttgart, Germany
| | - Andreas Simm
- Department of Cardiothoracic Surgery, University Hospital Halle, Ernst-Grube Str. 40, 06120 Halle (Saale), Germany
| | - Claudio Franceschi
- CIG-Interdepartmental Center "L.Galvani", Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Miriam Capri
- CIG-Interdepartmental Center "L.Galvani", Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | | | - Paola Caiafa
- Department of Cellular Biotechnologies and Hematology, Faculty of Pharmacy and Medicine, "Sapienza" University Rome, V.le Regina Elena 324, 00161 Rome, Italy
| | - Bertrand Friguet
- Sorbonne Universités, UPMC Univ Paris 06, UMR UPMC CNRS 8256, Biological adaptation and ageing - IBPS, INSERM U1164, F-75005 Paris, France
| | - P Eline Slagboom
- Department of Molecular Epidemiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Antti Hervonen
- Medical School, University of Tampere, 33014 Tampere, Finland
| | - Mikko Hurme
- Medical School, University of Tampere, 33014 Tampere, Finland
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