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[137] [138] [139] 8-oxoG, a common type of oxidative damage in DNA, is found to accumulate in plaque vascular smooth muscle cells, macrophages and endothelial cells, [140] thus linking DNA damage to plaque formation. DNA strand breaks also increased in atherosclerotic plaques. [140] Werner syndrome (WS) is a premature aging condition in humans ...
Atherosclerosis is characterized by the build-up of plaque inside your blood vessels. It can lead to stenosis, which is a narrowing of your artery walls. Plaque is a fatty substance made up of:
The link between atherosclerosis and autoimmunity is plasmacytoid dendritic cells (pDCs). PDCs contribute to the early stages of the formation of atherosclerotic lesions in the blood vessels by releasing large quantities of type 1 interferons (INF). Stimulation of pDCs leads to an increase of macrophages present in plaques.
Current research and thinking relating to the formation of vulnerable plaques (see atherosclerosis) is: [3] Hyperlipidemia, hypertension, smoking, homocysteine, hemodynamic factors, toxins, viruses, and/or immune reactions results in chronic endothelial injury, dysfunction, and increased permeability. [4]
An atheroma, or atheromatous plaque, is an abnormal accumulation of material in the inner layer of an arterial wall. [1] [2]The material consists of mostly macrophage cells, [3] [4] or debris, containing lipids, calcium and a variable amount of fibrous connective tissue.
Progression of atherosclerosis. A fatty streak is the first grossly visible (visible to the naked eye) lesion in the development of atherosclerosis.It appears as an irregular yellow-white discoloration on the luminal surface of an artery.