Nippon Eiyo Shokuryo Gakkaishi
Online ISSN : 1883-2849
Print ISSN : 0287-3516
ISSN-L : 0287-3516
Volume 65, Issue 1
Displaying 1-3 of 3 articles from this issue
Review
  • (Young Investigator Award of JSNFS (2011))
    Miki Igarashi
    2012 Volume 65 Issue 1 Pages 3-11
    Published: 2012
    Released on J-STAGE: April 28, 2012
    JOURNAL FREE ACCESS
    Docosahexaenoic acid (DHA, 22:6n-3) and arachidonic acid (AA, 20:4n-6) are critical for maintaining the homeostasis and function of the brain and cardiovascular system. However, the dietary requirements for DHA and AA have not been agreed upon, partly because the rates of their synthesis in the body from circulating α-linolenic acid (ALA, 18:3n-3) and linolenic acid (LA, 18:2n-6) and their incorporation into tissues have not been determined. In this study, unique kinetic infusion models using radiotracer- or heavy isotope-labeled fatty acids were applied to determine these rates in rats. Here, the models are introduced, and the estimated rates for n-3 polyunsaturated fatty acid metabolism and synthesis in rat liver and brain using these infusion methods are discussed.
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Original Paper
  • Kumiko Kizu, Junko Hirose, Tsutomu Honjoh, Hiroshi Narita
    2012 Volume 65 Issue 1 Pages 13-19
    Published: 2012
    Released on J-STAGE: April 28, 2012
    JOURNAL FREE ACCESS
    Rats were divided into two groups; group E, fed only egg white protein, and group M, fed only cow’s milk protein as a dietary protein source. Immune complexes of the respective dietary proteins and sIgA were found in the breast milk obtained from each group of mothers. When pups fed their own mother’s milk were immunized with egg white protein, serum concentrations of anti-ovomucoid and anti-ovalbumin IgG1 were lower in E-pups than in M-pups. When the pups were immunized with cow’s milk protein in turn, the serum concentration of anti-casein IgG1 was lower in M-pups than in E-pups. Thus, suppression of the Th2 response to dietary protein was acquired via breast-feeding from mothers fed the relevant proteins, probably through the immune complexes of dietary proteins and sIgA secreted into breast milk. The acquired Th2-suppression to egg white protein diminished spontaneously after weaning while the pups were not fed egg white protein.
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Research Data
  • Yuki Kato, Rei Otsuka, Tomoko Imai, Fujiko Ando, Hiroshi himokata
    2012 Volume 65 Issue 1 Pages 21-28
    Published: 2012
    Released on J-STAGE: April 28, 2012
    JOURNAL FREE ACCESS
    The Japanese food standard composition table has been revised after an interval of five years, and the last version includes the contents of iodine, selenium, chromium, molybdenum, and biotin. Although these nutrients were already referred to in the sixth revision of the Japanese Dietary Reference Intake for Nutrient Requirements published in 2000, these nutrients had not been included in previous food composition tables, and therefore the average intakes for Japanese have been unclear. In this study, iodine, selenium, chromium, molybdenum, and biotin intakes were calculated based on three-day dietary records (3DR) in a community-dwelling population aged 40-89 years (1,065 men and 1,050 women). The intakes were estimated by sex and five-year age groups. The median daily intakes of iodine, selenium, chromium, molybdenum, and biotin were 151.0 μg, 50.1 μg, 6.3 μg, 175.8 μg, and 27.3 μg in men, and 117.5 μg, 42.9 μg, 5.3 μg, 132.4 μg, and 23.8 μg in women, respectively.
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