the effects of alpha-tocopherol and its derivatives ( alpha-tocopherylquinone , its short-chained analog -- alpha-tocopheronolactone -- and short-chained alpha-tocopherylacetate ) on the levels of ubiquinone , its cyclic isomer -- ubichromenol -- and vitamin e in the liver and heart of vitamin e-deficient rats were studied .
C0042874
vitamin e
C0042875
vitamin