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Endothelial dysfunction may be involved in the development of atherosclerosis [5] [6] [7] and may predate vascular pathology. [ 5 ] [ 8 ] Endothelial dysfunction may also lead to increased adherence of monocytes and macrophages , as well as promoting infiltration of low-density lipoprotein (LDL) in the vessel wall. [ 9 ]
Microvascular angina (MVA), previously known as cardiac syndrome X, [1] also known as coronary microvascular dysfunction (CMD) or microvascular coronary disease is a type of angina (chest pain) with signs associated with decreased blood flow to heart tissue but with normal coronary arteries. [2] [3]
Microangiopathy (also known as microvascular disease, small vessel disease (SVD) or microvascular dysfunction) is a disease of the microvessels, small blood vessels in the microcirculation. [1] It can be contrasted to macroangiopathies such as atherosclerosis , where large and medium-sized arteries (e.g., aorta , carotid and coronary arteries ...
The primary cause of microvascular angina is unknown, but factors apparently involved are endothelial dysfunction and reduced flow (perhaps due to spasm) in the tiny "resistance" blood vessels of the heart. [18] Since microvascular angina is not characterized by major arterial blockages, it is harder to recognize and diagnose. [19] [20] [21]
The neutrophils bind to p-ANCAs and subsequently release inflammatory cytokines, reactive oxygen species and lytic enzymes that cause endothelial injury resulting to inflammation and necrosis of the small vessels. [4] The damage that is caused in the kidneys is specifically called necrotizing and crescentic glomerulonephritis. [5]
[24] [25] Variant angina also differs from the Kounis syndrome (also termed allergic acute coronary syndrome) in which coronary artery constriction and symptoms are caused by allergic or strong immune reactions to a drug or other substance. Treatment of the Kounis syndrome very much differs from that for variant angina. [26]
The so-called Virchow trias, hypercoagulability, stasis, and endothelial damage, also serve as risk factors for livedoid vasculopathy microvascular thrombosis. [ 11 ] [ 12 ] The manifestation of livedoid vasculopathy on the lower extremities is thought to be caused by variations in temperature and perfusion pressure , as well as a lower ...
As the disease progresses, neuronal dysfunction correlates closely with the development of blood vessel abnormalities, such as capillary basement membrane thickening and endothelial hyperplasia, which contribute to diminished oxygen tension and hypoxia. Neuronal ischemia is a well-established characteristic of diabetic neuropathy.