903-13 Selenium-Containing Antioxidant (Ebselen) Improves the Response to Balloon Injury in the Pig Coronary Model: Effects on Vascular Remodeling

Autor: Waksman, Ron, Robinson, Keith A., Schneider, Joel, Cipolla, Gustavo, Masayasu, Hiroyuki, King, Spencer B.
Zdroj: Journal of the American College of Cardiology; February 1995, Vol. 25 Issue: 2, Number 2 Supplement 1 p51A-52A, 2p
Abstrakt: Smooth muscle cell proliferation is critical to the pathogenesis of restenosis. Oxygen-derived radicals are known cell mitogens. We tested whether ebselen, a selenium-containing heterocyclic compound with antioxidant activity could reduce intimal thickening and increase luminal size after balloon injury (BI) in the coronary artery model. Nineteen normolipemic pigs were given (BI) of the LAD and LCX coronary arteries. At random 9 pigs were pretreated with ebselen (2.4g twice per day) for 3 days before Bl and continued until sacrifice (2 weeks after BI). Coronary atrery sections were evaluated by computer morphometry. The maximal intimal thickness (MIT), intimal area (IA) luminal perimeter (LP), vessel perimeter (VP), and fracture length (FL) were measured. The relation between the injury index (FL/LP) and intimal response to injury was determined.
Databáze: Supplemental Index