It is a well known fact that Pantethin is stable as one of the precursors of Coenzyme A, and indicates various effects.
In this paper the effect of Pantethin on experimental rabbit atherosclerosis caused by loading cholesterol was studied.
METHOD Twenty male rabbits weighing 2-3kg were used. They were fed with Oriental Yeast's chow containing 1% cholesterol. Separately, Pantethin was specially ordered to be contained in the said 1% cholesterol chow at a ratio of 5%.
For the first two weeks all of 20 rabbits were raised only with the chow containing 1% cholesterol, and after that serum cholesterol was measured using blood collected from auricle. According to the results of cholesterol values measured, the animals were divided to two groups to have nearly equal mean values of serum cholesterol, then a group of 10 rabbits was fed with only the chow containing 1% cholesterol and another group of 10 rabbits were fed with the chow containing 1% cholesterol and 5% Pantethin. They were raised for 10 weeks, and in either case amount of chow fed was 100g per head a day.
Serum cholesterol was measured by the enzyme method, neutral fat by Triglyceride Test Wako (acetyl acetone method), betalipoprotein by Walton-Scott's Method modified by Kuzuya and phospholipid by PL Kit N Method, and serum lipid peroxide by TBA method.
RESULTS Pantethin group showed lower serum cholesterol, neutral fat, phospholipid and beta-lipoprotein compared with the control. The substance with serum TBA reaction positive also showed a reducing trend. However, in either case no significant difference was observed statistically between the groups.
Upon autopsies carried 10 weeks later, even by gross observation, fatty streak in aortic wall, sclerotic intimal thickening and atheroma were found to be inhibited in the Pantethin group. CONCLUSION It was confirmed experimentally that Pantethin inhibits experimental atherosclerosis on rabbits raised with 1% cholesterol diet.
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