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Effect of alpha-tocopherol status on alpha-tocopherol transfer protein expression and its messenger RNA level in rat
Free Radical Research
|April 29, 1998
Abstract:
Studies were designed to explore the role of vitamin E nutritional status in regulating the synthesis of alpha-tocopherol transfer protein (alphaTTP) in rat liver. In vitamin E-replete rats, expression of this protein and its specific messenger RNA (mRNA) was decreased by about 300% compared with rats with normal vitamin E levels. In vitamin E-depleted rats, the alphaTTP-specific mRNA level increased to about 150% of that in the normal vitamin E group. However, protein expression remained constant. These findings indicate that the synthesis of alphaTTP can be regulated by the vitamin E nutritional status.