Method :Twenty our rabbit were randomi ed to receive normal diet(group A, n =6),chole terol diet(group B, n =6),chole terol diet plu olic acid(group C, n =6)chole terol diet plu tetrahydropterin(group D, n =6) or 5 week .

• 方法 :2 4只新西兰兔随机分 4组每组 6只。 正常饮食组、高胆固醇饮食组、叶酸加高胆固醇饮食组、BH4加高胆固醇饮食组。