Plaque Neovascularization Is Increased In Ruptured Atherosclerotic Lesions Of Human Aorta Implications For Plaque Vulnerability

This study examined what makes arterial plaques dangerous and prone to rupturing, which can trigger heart attacks and strokes. Researchers analyzed 269 advanced plaques from human aortas (the body's main artery) to understand why some plaques rupture while others remain stable. They specifically looked at tiny blood vessels called microvessels that grow into plaques as they develop.

The key finding was that ruptured plaques contained significantly more microvessels than stable plaques. These tiny blood vessels appear to grow into plaques from the vessel wall as the plaque thickens beyond what normal oxygen diffusion can support. The researchers also found that plaques with more inflammation, internal bleeding, and thinner protective caps had higher numbers of these microvessels.

This research helps explain why some plaques become vulnerable to rupture. The microvessels may weaken the plaque structure and contribute to internal bleeding, making the plaque more likely to break open suddenly. When a plaque ruptures, it can trigger blood clots that block arteries and cause heart attacks or strokes.

For patients focused on metabolic health and longevity, this research underscores the importance of preventing plaque formation and inflammation through lifestyle factors like diet, exercise, and stress management. In clinical practice, this knowledge helps doctors understand plaque vulnerability and reinforces why managing cardiovascular risk factors early is crucial for preventing catastrophic events, even when plaques are already present.