نبذة مختصرة : Docosapentaenoic acid (DPA, 22:5n-3) is a long-chain omega-3 fatty acid located metabolically between EPA and DHA, yet possessing unique and irreplaceable physiological functions. Unlike EPA or DHA, DPA demonstrates experimentally validated angiogenic activity through VEGF upregulation and endothelial progenitor cell (EPC) mobilization, enabling vascular repair and microcirculatory regeneration. It exerts potent anti-thrombotic effects by integrating into platelet membranes and inhibiting aggregation, reducing thrombosis risk without impairing coagulation. DPA also generates exclusive pro-resolving lipid mediators (RvDPA series, protectins), providing dual action in inflammation resolution and tissue repair. Beyond vascular health, DPA plays a critical role in male fertility by stabilizing sperm membrane integrity and mitochondrial function, and it enhances reverse cholesterol transport (RCT) through ABCA1/ABCG1 activation, thereby promoting lipid clearance and anti-atherosclerotic effects. Emerging evidence suggests DPA further contributes to female hormonal balance, endometrial remodeling, and preconception support. Clinically, DPA shows particular value in populations with hypertension, diabetes-related microvascular impairment, post-cardiovascular interventions, chronic inflammation, elderly vascular aging, metabolic dysfunction, and reproductive health challenges. Despite its low dietary abundance, DPA serves as a “small but mighty” bioactive omega-3 fatty acid with broad applications across cardiovascular, metabolic, reproductive, and inflammatory domains.
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