摂取B群ビタミン量と体内および尿中B群ビタミン量との関係

概要

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We compared the contents of the eight B-group vitamins in the liver, kidney, blood and urine of rats fed a 20% casein -1.0% AIN-93 vitamin mixture (recommended addition of AIN-93 vitamin mixture) diet or 20% casein-0.3% AIN-93 vitamin mixture (tentative minimal requirement) diet. There were no differences of body weight gains, food intakes, and liver and kidney weights between the two groups. Of the liver B-group vitamin contents, only the vitamin B_1 content was lower in the group fed the 0.3% vitamin mixture diet than in the group fed the 1.0% vitamin mixture diet. The contents of other seven vitamins were not different even though the intakes of the vitamins were decreased to be 1/3.3. In the kidney, the vitamins that were decreased by administering the 0.3% vitamin mixture diet were only two vitamins, B_1 and B_<12>. In the blood, the vitamin B_1, vitamin B_6, and folate concentrations were decreased by administering the 0.3% vitamin mixture diet. In the urine, seven kinds of the B-group vitamins except vitamin B_<12> were decreased by administering the 0.3% vitamin mixture diet.
2012-06-25