{"title":"利用人体尿液中的色氨酸代谢物评估 B 族维生素需求量的方法。","authors":"Katsumi Shibata, Junko Hirose, Tsutomu Fukuwatari","doi":"10.4137/IJTR.S24412","DOIUrl":null,"url":null,"abstract":"<p><p>Tryptophan metabolism is directly involved with B-group vitamins such as vitamin B2, niacin, and vitamin B6, and indirectly with vitamin B1 and pantothenic acid. We evaluated the validity of requirements of B-group vitamins set by the Dietary Reference Intakes for the Japanese (DRI-J). We investigated the fate of dietary tryptophan in 10 Japanese adult men who ate the same diet based on DRI-J during a 4-week study. Vitamin mixtures were administered based on the amounts in the basal diet during weeks 2, 3, and 4. Daily urine samples were collected eight times (days 1 and 5 in each week). Administration of vitamin mixtures had no effect on tryptophan metabolites such as anthranilic acid, kynurenic acid, xanthurenic acid, 3-hydroxyanthranilic acid, and quinolinic acid within individuals. Surplus administration of B-group vitamins against DRI-J requirements did not elicit beneficial effects on tryptophan metabolism. Our findings supported the requirements of B-group vitamins set by the DRI-J. </p>","PeriodicalId":46603,"journal":{"name":"International Journal of Tryptophan Research","volume":"8 ","pages":"31-9"},"PeriodicalIF":2.7000,"publicationDate":"2015-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4404996/pdf/","citationCount":"0","resultStr":"{\"title\":\"Method for Evaluation of the Requirements of B-group Vitamins Using Tryptophan Metabolites in Human Urine.\",\"authors\":\"Katsumi Shibata, Junko Hirose, Tsutomu Fukuwatari\",\"doi\":\"10.4137/IJTR.S24412\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Tryptophan metabolism is directly involved with B-group vitamins such as vitamin B2, niacin, and vitamin B6, and indirectly with vitamin B1 and pantothenic acid. We evaluated the validity of requirements of B-group vitamins set by the Dietary Reference Intakes for the Japanese (DRI-J). We investigated the fate of dietary tryptophan in 10 Japanese adult men who ate the same diet based on DRI-J during a 4-week study. Vitamin mixtures were administered based on the amounts in the basal diet during weeks 2, 3, and 4. Daily urine samples were collected eight times (days 1 and 5 in each week). Administration of vitamin mixtures had no effect on tryptophan metabolites such as anthranilic acid, kynurenic acid, xanthurenic acid, 3-hydroxyanthranilic acid, and quinolinic acid within individuals. Surplus administration of B-group vitamins against DRI-J requirements did not elicit beneficial effects on tryptophan metabolism. Our findings supported the requirements of B-group vitamins set by the DRI-J. </p>\",\"PeriodicalId\":46603,\"journal\":{\"name\":\"International Journal of Tryptophan Research\",\"volume\":\"8 \",\"pages\":\"31-9\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2015-04-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4404996/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Tryptophan Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4137/IJTR.S24412\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2015/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q3\",\"JCRName\":\"NEUROSCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Tryptophan Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4137/IJTR.S24412","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2015/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"NEUROSCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
色氨酸的代谢与维生素 B2、烟酸和维生素 B6 等 B 族维生素直接相关，与维生素 B1 和泛酸间接相关。我们评估了日本人膳食营养素参考摄入量（DRI-J）中规定的 B 族维生素需求量的有效性。在为期 4 周的研究中，我们调查了 10 名日本成年男性饮食中色氨酸的去向。在第 2、3 和 4 周期间，根据基础膳食中的含量摄入维生素混合物。每天收集尿样 8 次（每周的第 1 天和第 5 天）。服用维生素混合物对色氨酸代谢物（如蚁酸、犬尿氨酸、黄尿氨酸、3-羟基蚁酸和喹啉酸）没有影响。按照 DRI-J 的要求过量摄入 B 族维生素并不会对色氨酸代谢产生有益影响。我们的研究结果支持 DRI-J 确定的 B 族维生素需求量。
Method for Evaluation of the Requirements of B-group Vitamins Using Tryptophan Metabolites in Human Urine.
Tryptophan metabolism is directly involved with B-group vitamins such as vitamin B2, niacin, and vitamin B6, and indirectly with vitamin B1 and pantothenic acid. We evaluated the validity of requirements of B-group vitamins set by the Dietary Reference Intakes for the Japanese (DRI-J). We investigated the fate of dietary tryptophan in 10 Japanese adult men who ate the same diet based on DRI-J during a 4-week study. Vitamin mixtures were administered based on the amounts in the basal diet during weeks 2, 3, and 4. Daily urine samples were collected eight times (days 1 and 5 in each week). Administration of vitamin mixtures had no effect on tryptophan metabolites such as anthranilic acid, kynurenic acid, xanthurenic acid, 3-hydroxyanthranilic acid, and quinolinic acid within individuals. Surplus administration of B-group vitamins against DRI-J requirements did not elicit beneficial effects on tryptophan metabolism. Our findings supported the requirements of B-group vitamins set by the DRI-J.
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