Moriya Aya, Fukuwatari Tsutomu, Shibata Katsumi
Department of Nutrition, School of Human Cultures, the University of Shiga Prefecture, Shiga, Japan.
Nutr Metab Insights. 2013 May 21;6:23-8. doi: 10.4137/NMI.S12060. Print 2013.
B-vitamins are important for producing energy from amino acids, fatty acids, and glucose. The aim of this study was to elucidate the effects of excess vitamin intake before starvation on body mass, organ mass, blood, and biological variables as well as on urinary excretion of riboflavin in rats. Adult rats were fed two types of diets, one with a low vitamin content (minimum vitamin diet for optimum growth) and one with a sufficient amount of vitamins (excess vitamin diet). Body mass, organ mass, and blood variables were not affected by excess vitamin intake before starvation. Interestingly, urinary riboflavin excretion showed a different pattern. Urine riboflavin in the excess vitamin intake group declined gradually during starvation, whereas it increased in the low vitamin intake group. Excess vitamin intake before starvation does not affect body mass, organ mass, or blood variables but does affect the urinary excretion of riboflavin in starving rats.
B族维生素对于从氨基酸、脂肪酸和葡萄糖中产生能量很重要。本研究的目的是阐明饥饿前过量摄入维生素对大鼠体重、器官重量、血液和生物学变量以及核黄素尿排泄的影响。成年大鼠被喂食两种类型的饮食，一种维生素含量低（促进最佳生长的最低维生素饮食），另一种维生素含量充足（过量维生素饮食）。饥饿前过量摄入维生素对体重、器官重量和血液变量没有影响。有趣的是，尿核黄素排泄呈现出不同的模式。过量维生素摄入组的尿核黄素在饥饿期间逐渐下降，而低维生素摄入组则增加。饥饿前过量摄入维生素不影响体重、器官重量或血液变量，但会影响饥饿大鼠的核黄素尿排泄。
