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Russell-Buckland J, Kaynezhad P, Mitra S, Bale G, Bauer C, Lingam I, Meehan C, Avdic-Belltheus A, Martinello K, Bainbridge A, Robertson NJ, Tachtsidis I. Systems Biology Model of Cerebral Oxygen Delivery and Metabolism During Therapeutic Hypothermia: Application to the Piglet Model. Adv Exp Med Biol 2021; 1269:31-38. [PMID: 33966191 DOI: 10.1007/978-3-030-48238-1_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Hypoxic ischaemic encephalopathy (HIE) is a significant cause of death and disability. Therapeutic hypothermia (TH) is the only available standard of treatment, but 45-55% of cases still result in death or neurodevelopmental disability following TH. This work has focussed on developing a new brain tissue physiology and biochemistry systems biology model that includes temperature effects, as well as a Bayesian framework for analysis of model parameter estimation. Through this, we can simulate the effects of temperature on brain tissue oxygen delivery and metabolism, as well as analyse clinical and experimental data to identify mechanisms to explain differing behaviour and outcome. Presented here is an application of the model to data from two piglets treated with TH following hypoxic-ischaemic injury showing different responses and outcome following treatment. We identify the main mechanism for this difference as the Q10 temperature coefficient for metabolic reactions, with the severely injured piglet having a median posterior value of 0.133 as opposed to the mild injury value of 5.48. This work demonstrates the use of systems biology models to investigate underlying mechanisms behind the varying response to hypothermic treatment.
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Affiliation(s)
- Joshua Russell-Buckland
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK.
| | - P Kaynezhad
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - S Mitra
- Institute for Women's Health, University College London, London, UK
| | - G Bale
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - C Bauer
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - I Lingam
- Institute for Women's Health, University College London, London, UK
| | - C Meehan
- Institute for Women's Health, University College London, London, UK
| | | | - K Martinello
- Institute for Women's Health, University College London, London, UK
| | - A Bainbridge
- Department of Medical Physics and Biomedical Engineering, University College London Hospital, London, UK
| | - N J Robertson
- Institute for Women's Health, University College London, London, UK
| | - I Tachtsidis
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
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