Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats

Koji Masuda, Yoshihiro Tanaka, Masayuki Kanehisa, Taiga Ninomiya, Ayako Inoue, Haruka Higuma, Chiwa Kawashima, Mari Nakanishi, Kana Okamoto, Jotaro Akiyoshi Department of Neuropsychiatry, Oita University Faculty of Medicine, Hasama-Machi, Oita, Japan Background: In Japan, the effects of reduced wa...

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Main Authors: Masuda K, Tanaka Y, Kanehisa M, Ninomiya T, Inoue A, Higuma H, Kawashima C, Nakanishi M, Okamoto K, Akiyoshi J
Format: article
Language:EN
Published: Dove Medical Press 2017
Subjects:
Rat
Online Access:https://doaj.org/article/e3042e36a9a8478d9bf2c2f9b8e7d5b4
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spelling oai:doaj.org-article:e3042e36a9a8478d9bf2c2f9b8e7d5b42021-12-02T07:27:18ZNatural reduced water suppressed anxiety and protected the heightened oxidative stress in rats1178-2021https://doaj.org/article/e3042e36a9a8478d9bf2c2f9b8e7d5b42017-09-01T00:00:00Zhttps://www.dovepress.com/natural-reduced-water-suppressed-anxiety-and-protected-the-heightened--peer-reviewed-article-NDThttps://doaj.org/toc/1178-2021Koji Masuda, Yoshihiro Tanaka, Masayuki Kanehisa, Taiga Ninomiya, Ayako Inoue, Haruka Higuma, Chiwa Kawashima, Mari Nakanishi, Kana Okamoto, Jotaro Akiyoshi Department of Neuropsychiatry, Oita University Faculty of Medicine, Hasama-Machi, Oita, Japan Background: In Japan, the effects of reduced water, such as hydrogen-rich electrolyzed reduced water and natural reduced water, like Hita Tenryosui water®, have been examined. The purpose of the present study was to identify the role of natural reduced water in anxiety and blood biochemical analysis.Materials and methods: Natural reduced water and distilled water were administered to rats for 180 consecutive days, and their effect on anxiety-like behavior and depression was examined by using elevated plus maze, light/dark, forced swimming, and conditioned fear tests. Before and after administration of natural reduced or distilled water, we performed blood and urine analyses.Results: Natural reduced water exhibited anxiolytic-like effects in the conditioned fear and elevated plus maze tests. The mean levels of urinary 8-hydroxy-2′-deoxyguanosine (8-OHdG) in the natural reduced water were significantly lower than the distilled water group. Natural reduced water group also showed decrease in blood–urea nitrogen levels compared with the distilled water group.Conclusion: These results indicate that natural reduced water may decrease anxiety-related behaviors and prevent heightened oxidative stress. Keywords: urea nitrogen, depression, Hita Tenryosui, conditioned fear, elevated plus maze, 8-OHdGMasuda KTanaka YKanehisa MNinomiya TInoue AHiguma HKawashima CNakanishi MOkamoto KAkiyoshi JDove Medical PressarticleAnxietyDepressionRatWaterStress8-OH-dGNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol Volume 13, Pp 2357-2362 (2017)
institution DOAJ
collection DOAJ
language EN
topic Anxiety
Depression
Rat
Water
Stress
8-OH-dG
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
spellingShingle Anxiety
Depression
Rat
Water
Stress
8-OH-dG
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
Masuda K
Tanaka Y
Kanehisa M
Ninomiya T
Inoue A
Higuma H
Kawashima C
Nakanishi M
Okamoto K
Akiyoshi J
Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
description Koji Masuda, Yoshihiro Tanaka, Masayuki Kanehisa, Taiga Ninomiya, Ayako Inoue, Haruka Higuma, Chiwa Kawashima, Mari Nakanishi, Kana Okamoto, Jotaro Akiyoshi Department of Neuropsychiatry, Oita University Faculty of Medicine, Hasama-Machi, Oita, Japan Background: In Japan, the effects of reduced water, such as hydrogen-rich electrolyzed reduced water and natural reduced water, like Hita Tenryosui water®, have been examined. The purpose of the present study was to identify the role of natural reduced water in anxiety and blood biochemical analysis.Materials and methods: Natural reduced water and distilled water were administered to rats for 180 consecutive days, and their effect on anxiety-like behavior and depression was examined by using elevated plus maze, light/dark, forced swimming, and conditioned fear tests. Before and after administration of natural reduced or distilled water, we performed blood and urine analyses.Results: Natural reduced water exhibited anxiolytic-like effects in the conditioned fear and elevated plus maze tests. The mean levels of urinary 8-hydroxy-2′-deoxyguanosine (8-OHdG) in the natural reduced water were significantly lower than the distilled water group. Natural reduced water group also showed decrease in blood–urea nitrogen levels compared with the distilled water group.Conclusion: These results indicate that natural reduced water may decrease anxiety-related behaviors and prevent heightened oxidative stress. Keywords: urea nitrogen, depression, Hita Tenryosui, conditioned fear, elevated plus maze, 8-OHdG
format article
author Masuda K
Tanaka Y
Kanehisa M
Ninomiya T
Inoue A
Higuma H
Kawashima C
Nakanishi M
Okamoto K
Akiyoshi J
author_facet Masuda K
Tanaka Y
Kanehisa M
Ninomiya T
Inoue A
Higuma H
Kawashima C
Nakanishi M
Okamoto K
Akiyoshi J
author_sort Masuda K
title Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
title_short Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
title_full Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
title_fullStr Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
title_full_unstemmed Natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
title_sort natural reduced water suppressed anxiety and protected the heightened oxidative stress in rats
publisher Dove Medical Press
publishDate 2017
url https://doaj.org/article/e3042e36a9a8478d9bf2c2f9b8e7d5b4
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