Acidic Xylooligosaccharide Preserves Hepatic Iron Storage Level in Adult Female Rats Fed a Low-Iron Diet

DOI Web Site 参考文献17件
  • KOBAYASHI Yukiko
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • OHBUCHI Takayuki
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • FUKUDA Tomo
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • WAKASUGI Etsuko
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • YASUI Risa
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • HAMADA Mai
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • YOKOYAMA Meiko
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • KUWAHATA Masashi
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
  • KIDO Yasuhiro
    Laboratory of Nutrition Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University

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Iron deficiency anemia (IDA) is one of the most serious forms of malnutrition. This experiment was conducted to investigate whether acidic xylooligosaccharide (U-XOS), expected to have a high iron bioavailability, was useful in the prevention of iron deficiency. Experiment 1: Nineteen female Sprague-Dawley rats (20 wk old) were fed three different diets for 28 d; a U-XOS-supplemented low-iron diet (LI-X, n=7), a low-iron diet (LI, n=6), and a control diet (C, n=6). On day 28, the LI-X and LI groups showed iron deficiency without anemia. A significant difference in the total and unsaturated iron binding capacity, and serum transferrin saturation level was shown in the LI-X and LI groups, compared with the C group. However, the decrease of hepatic iron content of the LI-X group was suppressed compared with the LI group. Experiment 2: Eleven male Sprague-Dawley rats (7 wk old) were fed a U-XOS-supplemented diet (X, n=5) or a control diet (C, n=6) for 7 d. No significant difference in body weight gain or food intake was demonstrated between the two groups; the apparent iron absorption rate of the X group increased clearly compared with that of the C group. These results suggested that a U-XOS diet could preserve storage of hepatic iron in adult female rats fed a low-iron diet and could prevent IDA by promotion of dietary iron absorption, inhibition of iron excretion, and/or improvement of iron bioavailability.

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