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首页> 外文期刊>British Journal of Cancer >Folate metabolism in man: the effect of malignant disease
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Folate metabolism in man: the effect of malignant disease

机译:叶酸在人体中的代谢:恶性疾病的影响

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The metabolism of [2-14C]+[3', 5', 7, 9-3H] folic acid and [214C]+[3', 5', 7, 9-3H] 10-formylfolate was studied in hospital inpatients. Metabolites detected in the urine after folic acid feeding included the unchanged compound, other folates and a number of breakdown products, such as p-acetamidobenzoyl-L-glutamate and p-acetamidobenzoate. This confirms the existence of a folate catabolic pathway in man. Patients with malignant disease excreted less of the dose in urine, incorporated more into the reduced folate pool, and showed decreased catabolism of folate, when compared to controls. 10-Formylfolate was excreted largely unchanged, and appears not to be reduced by man. Also 10-formylfolate interfered with the reduction of folic acid given simultaneously.
机译:在住院患者中研究了[2-14C] + [3',5',7、9-3H]叶酸和[214C] + [3',5',7、9-3H] 10-甲酰叶酸的代谢。叶酸喂养后尿液中检测到的代谢物包括未改变的化合物,其他叶酸和许多分解产物,例如对乙酰氨基苯甲酰基-L-谷氨酸和对乙酰氨基苯甲酸盐。这证实了人体内叶酸分解代谢途径的存在。与对照组相比,患有恶性疾病的患者排泄的尿液量少,并向减少的叶酸池中吸收更多,并显示出叶酸分解代谢降低。 10-甲酰叶酸酯的排泄率基本保持不变,并且似乎没有被人还原。 10-甲酰叶酸酯也干扰同时给予的叶酸的减少。

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