Academic Journal
Assessment of left ventricular tissue mitochondrial bioenergetics in patients with stable coronary artery disease
| Τίτλος: | Assessment of left ventricular tissue mitochondrial bioenergetics in patients with stable coronary artery disease |
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| Συγγραφείς: | Jones, RE, Gruszczyk, AV, Schmidt, C, Hammersley, DJ, Mach, L, Lee, M, Wong, J, Yang, M, Hatipoglu, S, Lota, AS, Barnett, SN, Toscano-Rivalta, R, Owen, R, Raja, S, De Robertis, F, Smail, H, De-Souza, A, Stock, U, Kellman, P, Griffin, J, Dumas, M-E, Martin, JL, Saeb-Parsy, K, Vazir, A, Cleland, JGF, Pennell, DJ, Bhudia, SK, Halliday, BP, Noseda, M, Frezza, C, Murphy, MP, Prasad, SK |
| Πηγή: | 745 ; 733 |
| Στοιχεία εκδότη: | Springer Nature [academic journals on nature.com] |
| Έτος έκδοσης: | 2023 |
| Συλλογή: | Imperial College London: Spiral |
| Περιγραφή: | Recurrent myocardial ischemia can lead to left ventricular (LV) dysfunction in patients with coronary artery disease (CAD). In this observational cohort study, we assessed for chronic metabolomic and transcriptomic adaptations within LV myocardium of patients undergoing coronary artery bypass grafting. During surgery, paired transmural LV biopsies were acquired on the beating heart from regions with and without evidence of inducible ischemia on preoperative stress perfusion cardiovascular magnetic resonance. From 33 patients, 63 biopsies were acquired, compared to analysis of LV samples from 11 donor hearts. The global myocardial adenosine triphosphate (ATP):adenosine diphosphate (ADP) ratio was reduced in patients with CAD as compared to donor LV tissue, with increased expression of oxidative phosphorylation (OXPHOS) genes encoding the electron transport chain complexes across multiple cell types. Paired analyses of biopsies obtained from LV segments with or without inducible ischemia revealed no significant difference in the ATP:ADP ratio, broader metabolic profile or expression of ventricular cardiomyocyte genes implicated in OXPHOS. Differential metabolite analysis suggested dysregulation of several intermediates in patients with reduced LV ejection fraction, including succinate. Overall, our results suggest that viable myocardium in patients with stable CAD has global alterations in bioenergetic and transcriptional profile without large regional differences between areas with or without inducible ischemia. |
| Τύπος εγγράφου: | article in journal/newspaper |
| Γλώσσα: | English |
| Relation: | Nature Cardiovascular Research; http://hdl.handle.net/10044/1/106077 |
| DOI: | 10.1038/s44161-023-00312-z |
| Διαθεσιμότητα: | http://hdl.handle.net/10044/1/106077 https://doi.org/10.1038/s44161-023-00312-z |
| Rights: | © The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. ; https://creativecommons.org/licenses/by/4.0/ |
| Αριθμός Καταχώρησης: | edsbas.72B61473 |
| Βάση Δεδομένων: | BASE |
| DOI: | 10.1038/s44161-023-00312-z |
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