Pterostilbene in Cardiovascular Diseases: From Molecular Mechanisms to Therapeutic Potential.

Cardiovascular disease continues to impose a substantial global health burden and arises from interconnected pathological processes, including oxidative injury, inflammatory signaling, endothelial dysfunction, metabolic imbalance, and progressive cardiac and vascular structural remodeling. Growing interest has therefore emerged in naturally derived compounds capable of influencing multiple disease pathways simultaneously. Pterostilbene, a dimethoxylated stilbene structurally related to resveratrol, has gained attention due to its enhanced lipophilicity and improved bioavailability. Recent experimental studies have investigated the cardiovascular effects of pterostilbene in both cellular systems and animal models. Evidence from in vitro studies indicates that this compound modulates key regulatory networks involved in cellular energy metabolism, redox homeostasis, endothelial signaling, and stress-associated cardiomyocyte injury. These actions involve pathways linked to 5' adenosine monophosphate-activated protein kinase and sirtuin-1 signaling, nitric oxide regulation, antioxidant responses, and ferroptosis-related mechanisms. Findings from in vivo investigations further demonstrate protective effects across multiple cardiovascular disease models, including pulmonary hypertension, pressure overload-associated cardiac remodeling, ischemic myocardial injury, toxin-induced cardiotoxicity, and metabolic or atherosclerotic vascular dysfunction. Improvements in functional, structural, and biochemical parameters have been reported in these experimental settings. Overall, current preclinical evidence suggests that pterostilbene may act as a multifunctional modulator of key processes involved in cardiovascular pathology. Although clinical evidence remains limited, the convergence of mechanistic and experimental findings highlights its potential as a multi-target cardiometabolic therapeutic candidate and provides a foundation for future translational and clinical investigation.