Journal
BIOMEDICINES
Volume 9, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/biomedicines9070728
Keywords
arrhythmia; fructose; heart-gut axis; inflammation; microbiota
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Chronic intake of fructose may contribute to metabolic diseases and cardiac inflammation, with recent findings highlighting the significant role of the small intestine in fructose metabolism. Overconsumption of fructose leads to dysbiosis of the gut microbiota, increased intestinal permeability, and activation of host inflammation, affecting cardiac health.
Fructose is a main dietary sugar involved in the excess sugar intake-mediated progression of cardiovascular diseases and cardiac arrhythmias. Chronic intake of fructose has been the focus on the possible contributor to the metabolic diseases and cardiac inflammation. Recently, the small intestine was identified to be a major organ in fructose metabolism. The overconsumption of fructose induces dysbiosis of the gut microbiota, which, in turn, increases intestinal permeability and activates host inflammation. Endotoxins and metabolites of the gut microbiota, such as lipopolysaccharide, trimethylamine N-oxide, and short-chain fatty acids, also influence the host inflammation and cardiac biofunctions. Thus, high-fructose diets cause heart-gut axis disorders that promote cardiac arrhythmia. Understanding how gut microbiota dysbiosis-mediated inflammation influences the pathogenesis of cardiac arrhythmia may provide mechanisms for cardiac arrhythmogenesis. This narrative review updates our current understanding of the roles of excessive intake of fructose on the heart-gut axis and proposes potential strategies for inflammation-associated cardiac vascular diseases.
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