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Association of Vegetable and Fruit Consumption with Urinary Oxidative Biomarkers in Teenaged Girls: A School-Based Pilot Study in Japan

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  • Yoshiko Sato

    (Department of Bioscience, Faculty of Life Science, Okayama University of Science, Okayama 700-0005, Japan
    Wakayama Shin–ai Junior and Senior High School, Wakayama 640-8151, Japan)

  • Ai Yamada

    (Japan Industrial Safety and Health Association, Osaka 550-0001, Japan)

  • Masamitsu Miyanaga

    (Department of Bioscience, Faculty of Life Science, Okayama University of Science, Okayama 700-0005, Japan)

  • Da-Hong Wang

    (Department of Bioscience, Faculty of Life Science, Okayama University of Science, Okayama 700-0005, Japan)

Abstract

Hexanoyl-lysine (HEL), 8-hydroxy-2′deoxyguanosine (8-OHdG), and dityrosine (DT) have served as potential biomarkers for detecting oxidative modified lipids, DNA, and proteins in biological samples, respectively. Whether regular higher levels of consumption of vegetables/fruit (V/F) would decrease oxidative modification of these biomolecules in the body remain unelucidated. To examine the association of regular V/F consumption with the generation of these reactive oxygen species-induced biomarkers, this study evaluated V/F consumption in a school-based sample of teenaged girls (mean age 15.6 ± 1.7 years, n = 103), and quantified the formation of oxidative stress biomarkers in their urine. Only 19.4% and 23.3% of participants reported that they consumed the recommended daily amount of vegetables and fruits, respectively. Individuals who consumed lower levels of fruit (<100g/day) or vegetables (<250g/day) had significantly higher HEL excretion in their urine than those who consumed higher levels of fruit (≥100g/day) ( p < 0.05) or vegetables (≥250g/day) ( p = 0.057). The results of a multiple regression analysis showed that vegetable consumption was an important inhibiting factor of early lipid peroxidation measured as HEL in urine, independent of various confounders (β = − 0.332, p < 0.05). The findings suggest that relatively higher consumption of vegetables would help in the prevention of early lipid peroxidation in adolescents.

Suggested Citation

  • Yoshiko Sato & Ai Yamada & Masamitsu Miyanaga & Da-Hong Wang, 2022. "Association of Vegetable and Fruit Consumption with Urinary Oxidative Biomarkers in Teenaged Girls: A School-Based Pilot Study in Japan," IJERPH, MDPI, vol. 19(17), pages 1-12, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:17:p:10474-:d:895156
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    References listed on IDEAS

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    1. Da-Hong Wang & Michiko Kogashiwa & Naoko Mori & Shikibu Yamashita & Wakako Fujii & Nobuo Ueda & Hiroto Homma & Hisao Suzuki & Noriyoshi Masuoka, 2016. "Psychosocial Determinants of Fruit and Vegetable Consumption in a Japanese Population," IJERPH, MDPI, vol. 13(8), pages 1-11, August.
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    1. Yoshiko Sato & Masamitsu Miyanaga & Da-Hong Wang, 2020. "Psychosocial Determinants of Fruit and Vegetable Intake in Japanese Adolescents: A School-Based Study in Japan," IJERPH, MDPI, vol. 17(15), pages 1-11, July.

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