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Atheroma: Difference between revisions - Wikipedia

Atheroma: Difference between revisions

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An '''atheroma''', or '''atheromatous plaque''' ("plaque"), is an abnormal and reversible accumulation of material in the [[tunica intima|inner layer]] of an [[artery]] wall.<ref>{{cite journal |last1=Lusis |first1=Aldons J. |title=Atherosclerosis |journal=Nature |date=September 2000 |volume=407 |issue=6801 |pages=233–241 |doi=10.1038/35025203 |pmid=11001066 |pmc=2826222 }}</ref><ref>{{Cite journal|last1=Francis|first1=Andrew A|last2=Pierce|first2=Grant N|date=2011|title=An integrated approach for the mechanisms responsible for atherosclerotic plaque regression|journal=Experimental & Clinical Cardiology|volume=16|issue=3|pages=77–86|issn=1205-6626|pmc=3209544|pmid=22065938}}</ref>
 
The material consists of mostly [[macrophage|macrophage cells]],<ref name="pmid20376052">{{cite journal |last1=Hotamisligil |first1=Gökhan S |title=Endoplasmic reticulum stress and atherosclerosis |journal=Nature Medicine |date=April 2010 |volume=16 |issue=4 |pages=396–399 |doi=10.1038/nm0410-396 |pmid=20376052 |pmc=2897068 }}</ref><ref name="pmid22356914">{{cite journal |last1=Oh |first1=Jisu |last2=Riek |first2=Amy E. |last3=Weng |first3=Sherry |last4=Petty |first4=Marvin |last5=Kim |first5=David |last6=Colonna |first6=Marco |last7=Cella |first7=Marina |last8=Bernal-Mizrachi |first8=Carlos |title=Endoplasmic Reticulum Stress Controls M2 Macrophage Differentiation and Foam Cell Formation |journal=Journal of Biological Chemistry |date=6 April 2012 |volume=287 |issue=15 |pages=11629–11641 |doi=10.1074/jbc.M111.338673 |pmid=22356914 |pmc=3320912 |doi-access=free }}</ref> or debris, containing [[lipids]], calcium and a variable amount of fibrous [[connective tissue]]. The accumulated material forms a swelling in the artery wall, which may intrude into the [[Lumen (anatomy)|lumen]] of the artery, [[stenosis|narrowing]] it and restricting blood flow. Atheroma is the [[pathological]] basis for the disease entity [[atherosclerosis]], a subtype of [[arteriosclerosis]].{{fact|date=September 2020}}