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  • Title: An angiotensin converting enzyme inhibitor, perindopril, prevents progression of preformed atherosclerotic lesions in the cholesterol-fed rabbit.
    Author: Fennessy PA, Campbell JH, Campbell GR.
    Journal: Clin Sci (Lond); 1994 Dec; 87(6):685-91. PubMed ID: 7874860.
    Abstract:
    1. The aim was to determine whether the angiotensin converting enzyme inhibitor perindopril, at a concentration approaching that used in human antihypertensive therapy, influences progression of preformed atherosclerotic plaques. 2. Rabbits had their right carotid artery deendothelialized with a balloon catheter, which resulted in the formation of a myointimal thickening. 3. At 14 weeks post surgery groups I, II and III (n = 6 per group) were fed a 1% cholesterol-enriched diet for 6 weeks, then group I rabbits were sacrificed. Groups II and III were placed on a normolipidaemic diet for a further 6 weeks with group III rabbits also receiving 0.3 mg day-1 kg-1 perindopril. Groups IV and V were treated the same as groups II and III, respectively, except that they received a normal diet throughout. 4. Group I rabbits fed a 1% cholesterol-enriched diet for 6 weeks developed lipid-filled lesions covering 26.3 +/- 14.3% of the surface area of the descending thoracic aorta. This was exacerbated in rabbits fed a 1% cholesterol diet for 6 weeks followed by 6 weeks on a normal diet (61.2 +/- 27.3%). In rabbits fed a 1% cholesterol diet for 6 weeks than a normal diet for a further 6 weeks plus 0.3 mg day-1 kg-1 perindopril, the percentage surface area covered by lesions was 21.8 +/- 15.8%. No lesions developed in the aortas of rabbits fed a normal diet. In the right coronary artery the resulting neointima in rabbits fed a 1% cholesterol diet for 6 weeks only was 42.4 +/- 5.7% of the cross-sectional area of the vessel wall, 57.4 +/- 8.0% in rabbits receiving 6 weeks' cholesterol diet than 6 weeks' normal diet, 36.0 +/- 6.6% in rabbits fed a 6-week cholesterol diet than 6 weeks' normal diet with 0.3 mg day-1 kg-1 perindopril and 33.2 +/- 4.9% and 31.8 +/- 3.1% in rabbits on a normal diet throughout with 0 and 0.3 mg day-1 kg-1 perindopril respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
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