Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-7-20
pubmed:abstractText
Elevated plasma levels of LDL and lipoprotein (a) [Lp(a)] are associated with an increased risk of atherosclerosis and coronary heart disease. However, it is not known whether Lp(a) would enhance the atherogenic effect of LDL on coronary atherosclerosis and myocardial infarction. To address this issue, we cross-bred human Lp(a) transgenic (Tg) rabbits with Watanabe heritable hyperlipidemic (WHHL) rabbits and evaluated the long-term (at the age of 2 years) effects of Lp(a) on the development of coronary atherosclerosis. Compared to non-Tg WHHL rabbits, Tg WHHL rabbits did not show significant changes in plasma total cholesterol, triglycerides, or HDL-C. However, Tg WHHL rabbits showed significantly larger lesions in the right coronary arteries (p<0.05). Immunohistochemical staining revealed that the lesions of Tg WHHL rabbits were enriched in the extracellular matrix contents whereas the cellular components were not different from those in non-Tg WHHL rabbits. Increased atherosclerosis in the coronary arteries in Tg WHHL rabbit hearts was also associated with a higher incidence of chronic ischemia and myocardial infarction. These results suggest that increased plasma levels of Lp(a) enhance coronary atherosclerosis and myocardial infarction in the setting of hypercholesterolemia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-9150
pubmed:author
pubmed:issnType
Print
pubmed:volume
193
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
269-76
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Lp(a) enhances coronary atherosclerosis in transgenic Watanabe heritable hyperlipidemic rabbits.
pubmed:affiliation
Analytical Research Center for Experimental Sciences, Saga University, Saga 849-8501, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't