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Abstract #3138

Using 13C MRS to Assess Fasted and Postprandial Glycogen Stores in Healthy Children: A Randomized Controlled Study

Stephen Bawden1,2, Astrid Horstman3, Abi Spicer2, Noura Darwish3, Denis Breuille3, Penny Gowland2, Ian Macdonald4, and Liz Simpson4
1NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK, University of Nottingham, Nottingham, United Kingdom, 2Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom, 3Nestle Institute of Health Sciences, Lausanne, Switzerland, 4David Greenfield Human Physiology Unit, MRC/ARUK Centre for Musculoskeletal Ageing Research, University of Nottingham School of Life Sciences, University of Nottingham, Nottingham, United Kingdom

Synopsis

Keywords: Liver, MetabolismThe aim of this study was to use 13C MRS to compare hepatic glycogen levels before and after an overnight fast and following a small breakfast of varying carbohydrate quantities (0, 15.5 and 31g CHO) in children . Liver glycogen concentration decreased overnight from 378 ± 141 to 277 ± 107 mmol l-1 with a between visit coefficient of variation of 21 ± 15 %. There was also a significant difference in the postprandial AUC (P < 0.005) with a linear CHO ‘dose’ response (R=0.51, P < 0.001). This study expands knowledge of normative glycogen storage in children.

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