Open Access

Changes in oxidative stress levels during two weeks of smoking cessation treatment and their association with nutritional characteristics in Japanese smokers

  • Authors:
    • Shino Oba
    • Yohei Inaba
    • Tomoyuki Shibuya
    • Joji Oshima
    • Kuniaki Seyama
    • Toshihiro Kobayashi
    • Naoki Kunugita
    • Toshihiro Ino
  • View Affiliations

  • Published online on: February 7, 2019     https://doi.org/10.3892/etm.2019.7252
  • Pages: 2757-2764
  • Copyright: © Oba et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Although several experimental studies have reported that oxidative stress levels decrease during smoking cessation, how they change among general smokers has yet to be completely elucidated. In the present study, a total of 23 smokers who underwent smoking cessation treatment were observed for two‑week changes in their levels of 8‑OHdG and 8‑isoprostane. Physical and nutritional characteristics were measured at the initial patient visit, and casual urine samples were collected at the initial visit and at a follow‑up visit two weeks later. Oxidative stress was measured by a high performance liquid chromatography electrochemical detector, and the two‑week difference in the levels of oxidative stress was assessed according to demographic and nutrient factors. Neither the urinary level of 8‑OHdG nor that of 8‑isoprostane decreased, although the cotinine level was decreased at two weeks. A Two‑way repeated ANOVA revealed a significant interaction for fat intake by time for the change in the 8‑OHdG level (P=0.03) and significant interactions for α‑tocopherol intake (P=0.03), iron intake, and carbohydrate intake (P=0.03), all of which were time‑dependent for the change in the 8‑isoprostane level. The 8‑OHdG level decreased among smokers with a high fat intake and was increased with a low fat intake. The 8‑isoprostane levels were decreased among smokers with a high carbohydrate intake and increased with a low carbohydrate intake, decreased with a low iron intake and increased with a high iron intake and decreased with a low α‑tocopherol intake and increased with a high α‑tocopherol intake. Although the present study failed to observe a decrease in oxidative stress levels during the two‑week smoking cessation period, we hypothesize that the intake levels of specific nutrients when initiating smoking cessation treatment may predict any subsequent changes in the oxidative stress levels.
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April-2019
Volume 17 Issue 4

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Oba S, Inaba Y, Shibuya T, Oshima J, Seyama K, Kobayashi T, Kunugita N and Ino T: Changes in oxidative stress levels during two weeks of smoking cessation treatment and their association with nutritional characteristics in Japanese smokers. Exp Ther Med 17: 2757-2764, 2019
APA
Oba, S., Inaba, Y., Shibuya, T., Oshima, J., Seyama, K., Kobayashi, T. ... Ino, T. (2019). Changes in oxidative stress levels during two weeks of smoking cessation treatment and their association with nutritional characteristics in Japanese smokers. Experimental and Therapeutic Medicine, 17, 2757-2764. https://doi.org/10.3892/etm.2019.7252
MLA
Oba, S., Inaba, Y., Shibuya, T., Oshima, J., Seyama, K., Kobayashi, T., Kunugita, N., Ino, T."Changes in oxidative stress levels during two weeks of smoking cessation treatment and their association with nutritional characteristics in Japanese smokers". Experimental and Therapeutic Medicine 17.4 (2019): 2757-2764.
Chicago
Oba, S., Inaba, Y., Shibuya, T., Oshima, J., Seyama, K., Kobayashi, T., Kunugita, N., Ino, T."Changes in oxidative stress levels during two weeks of smoking cessation treatment and their association with nutritional characteristics in Japanese smokers". Experimental and Therapeutic Medicine 17, no. 4 (2019): 2757-2764. https://doi.org/10.3892/etm.2019.7252