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29 Cards in this Set
- Front
- Back
Arteriosclerosis |
Hardening of the arteries |
|
atherosclerosis |
hardening of arteries due plaque formation |
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LDL is oxidized, which causes |
plaque formation |
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Three tunicas |
Adventitia, media, and intima |
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The progression |
Fatty streak foam cells, fibrous plaque, occlusive plaque, plaque rupture and thrombosis |
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Claudication occurs with |
Occlusive plaque |
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In severe CAD, lumen |
Is very narrow |
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Men or women get more LAD stenosis? |
Men |
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More cholesterol leads to |
More CHD events in later years, particularly with LDL cholesterol |
|
1mg/dL decrease in HDL leads to |
2% higher in men and 3% higher in women for disease |
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CHD factors injure |
The endothelium |
|
Polyunsaturated fats, like other lipids, are especially susceptible to |
Peroxidation |
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Oxidized LDL causes |
Fragmentation of Apo B, loss of amino acids, not recognized by LDL receptor, lyscholine chemotaxicity for monocytes, |
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Oxidation of LDL leads to less and more of |
NO, ACE |
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HDL can remove |
Oxidized LDL and reduce it by CEPT transfers. Liver takes up these reduced HDLs faster than LDLs. |
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Foam cells form from |
Macrophages |
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Plaques release |
Cytokines, cause inflammation |
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LDL is modified in the |
Arterial wall |
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MPC1 is |
Monocyte Chemiotic factor, makes monocytes into macrophages |
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Macrophage growth factors promote |
Cell matrix degradation |
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HDL inhibits |
Adhesion molecules so fewer monocytes attracted, oxidative modification of LDL, formation of foam cells |
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CRP causes |
Inflammation, may lead to CVD, but does not cause CVD. CRP made in the liver. |
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What increase risk of CVD? |
High carbs, sat or trans fats, dyslipidemias, |
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What quantity of LDLs affects the risk of CVD? |
More, smaller LDLs makes more likely to have CVD. |
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Most MIs are actually due to what arteries? |
Non-obstructive |
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Vulnerable plaques |
Thin fibrous, lipid rich, inflammatory |
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Stable plaques |
Thick fibrous, smooth muscle cells with more extracellular matrix, lipid poor |
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Statins reduce |
Artherosclerosis by reducing LDL levels. Also decrease plaque volume. |
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Lifestyle changes like fat, exercise and stress control |
Also reduce artherosclerosis |