How DNA Damage and Telomere Loss Drive Accelerated Vascular Aging

Cardiovascular disease remains the leading cause of death in older adults, and vascular aging is increasingly understood as a central driver of that risk. This review, published in Advances in Gerontology by researchers at Russian State Social University, focuses on the molecular and genetic factors that underlie accelerated vascular aging — a process distinct from, and often more aggressive than, chronological aging alone.

The authors concentrate on the vascular endothelium, the inner lining of blood vessels. As endothelial cells age, their functional capacity degrades progressively. This deterioration disrupts the regulated production of biologically active substances — including nitric oxide and other vasoactive molecules — that normally keep vessel tone balanced and blood flowing smoothly. When this signaling breaks down, the result is thrombophilia (a prothrombotic state) and pathologically increased vascular tone, both hallmarks of cardiovascular risk.

At the molecular level, the review highlights two core mechanisms driving endothelial aging: telomere shortening and the accumulation of gene mutations. Telomeres — the protective caps at chromosome ends — shorten with each cell division; once critically short, cells enter senescence or dysfunction. Simultaneously, a rising burden of somatic mutations impairs cellular repair and signaling capacity. Together, these changes alter endothelial identity and function in ways that accelerate vessel-wall pathology.

The clinical implications are significant. Because the severity of systemic age-related changes often correlates with the degree of vascular aging, understanding these intracellular mechanisms could inform targeted interventions — whether pharmacological, lifestyle-based, or genetic — aimed at slowing endothelial deterioration and reducing cardiovascular disease incidence.

Caveats are notable: this summary is based on the abstract only, as the full article is in Russian and not open access. The review appears to be narrative rather than systematic, which limits the strength of its conclusions. Independent validation through translational and clinical research will be essential.