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- W2156847907 abstract "Background and Purpose Ischaemic heart disease can lead to serious, life‐threatening complications. Traditional therapies for ischaemia aim to increase oxygen delivery and reduce the myocardial ATP consumption by increasing the coronary perfusion and by suppressing cardiac contractility, heart rate or blood pressure. An adjunctive treatment option for ischaemia is to improve or optimize myocardial metabolism. Experimental Approach Metabolic suppression in the ischaemic heart is characterized by reduced levels of high‐energy molecules: ATP and NAD + . Because NAD + is required for most metabolic processes that generate ATP, we hypothesized that restoration of NAD + would be a prerequisite for ATP regeneration and examined the role of the major NAD + anabolic and catabolic pathways in the bioenergetic restoration process following oxygen–glucose deprivation injury in a cardiomyocyte cell line (H9c2 cells). Key Results Salvage of NAD + via nicotinamide phosphoribosyl transferase was essential for bioenergetic recovery in cardiomyocytes. Blockade of nicotinamide phosphoribosyl transferase prevented the restoration of the cellular ATP pool following oxygen–glucose deprivation injury by inhibiting both the aerobic and anaerobic metabolism in the cardiomyocytes. NAD + consumption by PARP‐1 also undermined the recovery processes, and PARP inhibition significantly improved the metabolism and increased cellular ATP levels in cardiomyocytes. Conclusions and Implications We conclude that the NAD + salvage pathway is essential for bioenergetic recovery in post‐hypoxic cardiomyocytes and PARP inhibition may represent a potential future therapeutic intervention in ischaemic heart disease." @default.
- W2156847907 created "2016-06-24" @default.
- W2156847907 creator A5020025120 @default.
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- W2156847907 date "2015-10-01" @default.
- W2156847907 modified "2023-10-17" @default.
- W2156847907 title "Salvage of nicotinamide adenine dinucleotide plays a critical role in the bioenergetic recovery of post-hypoxic cardiomyocytes" @default.
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- W2156847907 doi "https://doi.org/10.1111/bph.13252" @default.
- W2156847907 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4621988" @default.
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- W2156847907 hasPublicationYear "2015" @default.
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