A mathematical model of the human metabolic system and metabolic flexibility

In healthy subjects some tissues in the human body display metabolic flexibility, by this we mean the ability for the tissue to switch its fuel source between predominantly carbohydrates in the post prandial state and predominantly fats in the fasted state. Many of the pathways involved with human m...

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Main Authors: Pearson, Taliesin, Wattis, Jonathan A.D., King, John. R., MacDonald, Ian A., Mazzatti, Dawn
Format: Article
Published: Springer 2014
Subjects:
Online Access:https://eprints.nottingham.ac.uk/29802/
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author Pearson, Taliesin
Wattis, Jonathan A.D.
King, John. R.
MacDonald, Ian A.
Mazzatti, Dawn
author_facet Pearson, Taliesin
Wattis, Jonathan A.D.
King, John. R.
MacDonald, Ian A.
Mazzatti, Dawn
author_sort Pearson, Taliesin
building Nottingham Research Data Repository
collection Online Access
description In healthy subjects some tissues in the human body display metabolic flexibility, by this we mean the ability for the tissue to switch its fuel source between predominantly carbohydrates in the post prandial state and predominantly fats in the fasted state. Many of the pathways involved with human metabolism are controlled by insulin, and insulin- resistant states such as obesity and type-2 diabetes are characterised by a loss or impairment of metabolic flexibility. In this paper we derive a system of 12 first-order coupled differential equations that describe the transport between and storage in different tissues of the human body. We find steady state solutions to these equations and use these results to nondimensionalise the model. We then solve the model numerically to simulate a healthy balanced meal and a high fat meal and we discuss and compare these results. Our numerical results show good agreement with experimental data where we have data available to us and the results show behaviour that agrees with intuition where we currently have no data with which to compare.
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spelling nottingham-298022020-05-04T16:52:24Z https://eprints.nottingham.ac.uk/29802/ A mathematical model of the human metabolic system and metabolic flexibility Pearson, Taliesin Wattis, Jonathan A.D. King, John. R. MacDonald, Ian A. Mazzatti, Dawn In healthy subjects some tissues in the human body display metabolic flexibility, by this we mean the ability for the tissue to switch its fuel source between predominantly carbohydrates in the post prandial state and predominantly fats in the fasted state. Many of the pathways involved with human metabolism are controlled by insulin, and insulin- resistant states such as obesity and type-2 diabetes are characterised by a loss or impairment of metabolic flexibility. In this paper we derive a system of 12 first-order coupled differential equations that describe the transport between and storage in different tissues of the human body. We find steady state solutions to these equations and use these results to nondimensionalise the model. We then solve the model numerically to simulate a healthy balanced meal and a high fat meal and we discuss and compare these results. Our numerical results show good agreement with experimental data where we have data available to us and the results show behaviour that agrees with intuition where we currently have no data with which to compare. Springer 2014-08-15 Article PeerReviewed Pearson, Taliesin, Wattis, Jonathan A.D., King, John. R., MacDonald, Ian A. and Mazzatti, Dawn (2014) A mathematical model of the human metabolic system and metabolic flexibility. Bulletin of Mathematical Biology, 76 (9). pp. 2091-2121. ISSN 0092-8240 Multicompartmental Modelling Insulin Glucose Free Fatty Acids Triglyceride http://link.springer.com/article/10.1007/s11538-014-0001-4 doi:10.1007/s11538-014-0001-4 doi:10.1007/s11538-014-0001-4
spellingShingle Multicompartmental Modelling
Insulin
Glucose
Free Fatty Acids
Triglyceride
Pearson, Taliesin
Wattis, Jonathan A.D.
King, John. R.
MacDonald, Ian A.
Mazzatti, Dawn
A mathematical model of the human metabolic system and metabolic flexibility
title A mathematical model of the human metabolic system and metabolic flexibility
title_full A mathematical model of the human metabolic system and metabolic flexibility
title_fullStr A mathematical model of the human metabolic system and metabolic flexibility
title_full_unstemmed A mathematical model of the human metabolic system and metabolic flexibility
title_short A mathematical model of the human metabolic system and metabolic flexibility
title_sort mathematical model of the human metabolic system and metabolic flexibility
topic Multicompartmental Modelling
Insulin
Glucose
Free Fatty Acids
Triglyceride
url https://eprints.nottingham.ac.uk/29802/
https://eprints.nottingham.ac.uk/29802/
https://eprints.nottingham.ac.uk/29802/