Journal
JOURNAL OF CLINICAL MEDICINE
Volume 10, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/jcm10040721
Keywords
cardiometabolism; cardiac physiology; heart failure; ischemia; therapeutic targets
Categories
Funding
- POR Calabria (Italy) FESR-FSE 2014/2020-Azione 10.5.12-Linea B (DR) [683]
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Cardiac metabolism plays a crucial role in maintaining the physiological structure and function of the heart, with the flexibility of metabolic networks influencing the heart's ability to adapt to pathophysiological changes. Targeting cardiac metabolism may offer promising avenues for future pharmacological interventions to modulate heart metabolic pathways.
Cardiac metabolism represents a crucial and essential connecting bridge between the healthy and diseased heart. The cardiac muscle, which may be considered an omnivore organ with regard to the energy substrate utilization, under physiological conditions mainly draws energy by fatty acids oxidation. Within cardiomyocytes and their mitochondria, through well-concerted enzymatic reactions, substrates converge on the production of ATP, the basic chemical energy that cardiac muscle converts into mechanical energy, i.e., contraction. When a perturbation of homeostasis occurs, such as an ischemic event, the heart is forced to switch its fatty acid-based metabolism to the carbohydrate utilization as a protective mechanism that allows the maintenance of its key role within the whole organism. Consequently, the flexibility of the cardiac metabolic networks deeply influences the ability of the heart to respond, by adapting to pathophysiological changes. The aim of the present review is to summarize the main metabolic changes detectable in the heart under acute and chronic cardiac pathologies, analyzing possible therapeutic targets to be used. On this basis, cardiometabolism can be described as a crucial mechanism in keeping the physiological structure and function of the heart; furthermore, it can be considered a promising goal for future pharmacological agents able to appropriately modulate the rate-limiting steps of heart metabolic pathways.
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