| Literature DB >> 15496309 |
Angelica Wackenfors1, Malin Emilson, Richard Ingemansson, Lars Edvinsson, Malin Malmsjö.
Abstract
Angiotensin II is important in the development of cardiovascular disease. In the present study, angiotensin II receptor mRNA levels were quantified by real-time polymerase chain reaction (real-time PCR) in human coronary arteries from patients with ischemic heart disease and controls. Furthermore, the suitability of artery culture for studying angiotensin receptor changes was evaluated by in vitro pharmacology and real-time PCR. The angiotensin type 1 (AT1) receptor mRNA levels were down-regulated in human coronary arteries from patients with ischemic heart disease as compared to controls (P<0.05). Culture of coronary arteries for 48 h induced down-regulation of the angiotensin AT1 and AT2 receptor mRNA levels and also a less efficacious angiotensin II-induced vasoconstriction (Emax=103+/-2% before and 23+/-7% after artery culture, P<0.001). Artery culture may thus be a suitable method for studying angiotensin receptor regulation.Entities:
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Year: 2004 PMID： 15496309 DOI： 10.1016/j.ejphar.2004.09.039
Source DB: PubMed Journal: Eur J Pharmacol ISSN： 0014-2999 Impact factor: 4.432