Apelin Receptor Signaling and Biased Agonism

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This paper identifies (-)-epicatechin as a biased ligand of the apelin receptor, supporting a receptor-mediated signaling mechanism that may help explain some of its vascular and metabolic effects.

eNOS Activation and Nitric Oxide Signaling Pathways

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This study found that (-)-epicatechin activates endothelial nitric oxide synthase and increases nitric oxide signaling in endothelial cells, helping define a plausible endothelial mechanism for vascular benefit.

Postprandial Fat Oxidation and Epicatechin

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This human study assessed short-term metabolic effects of an oral (-)-epicatechin supplement after meals, reporting changes in postprandial fat and carbohydrate handling in normal and overweight participants.