1
|
Wang X, Sun Y, Luan C, Yang S, Wang K, Zhang X, Hao R, Zhang W. Effect of hydrogen-rich saline on melanopsin after acute blue light-induced retinal damage in rats. Photochem Photobiol 2024. [PMID: 38634423 DOI: 10.1111/php.13952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
Excessive exposure to blue light can cause retinal damage. Hydrogen-rich saline (HRS), one of the hydrogen therapies, has been demonstrated to be effective in eye photodamage, but the effect on the expression of melanopsin in intrinsically photosensitive retinal ganglion cells (ipRGCs) is unknown. In this study, we used a rat model of light-induced retinal injury to observe the expression of melanopsin after HRS treatment and to determine the effect of HRS on retinal ganglion cell protection. Adult SD rats were exposed to blue light (48 h) and treated with HRS for 0, 3, 7, and 14 days. Real-time polymerase chain reaction (qRT-PCR) and Western blotting (WB) were performed to find the expression of genes and proteins, respectively. The function of retinal ipRGCs was measured by pattern-evoked electroretinography (pERG). The number and morphological changes of melanopsin-positive ganglion cells in the retina were observed by immunofluorescence (IF). Acute blue light exposure caused a decrease in ipRGC function, decreased expression of melanopsin protein and the melanopsin-positive RGCs, and diminished immunoreactivity in dendrites. However, over time, melanopsin showed a tendency to self-recovery, with an increase in melanopsin protein expression and the number of melanopsin-positive RGCs, with incomplete recovery of function within two weeks. HRS treatment accelerated the recovery process, with a significant increase in melanopsin expression and the number of melanopsin-positive RGCs, and an improvement in the pERG waveform within two weeks.
Collapse
Affiliation(s)
- Xiao Wang
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
| | - Yifan Sun
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
| | - Changlin Luan
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
| | - Shiqiao Yang
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
| | - Kailei Wang
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
| | - Xiaoran Zhang
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
| | - Rui Hao
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
- Nankai University Eye Institute, Nankai University Affiliated Eye Hospital, Nankai University, Tianjin, P. R. China
| | - Wei Zhang
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Vision Science, Tianjin, P. R. China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P. R. China
- Nankai University Eye Institute, Nankai University Affiliated Eye Hospital, Nankai University, Tianjin, P. R. China
| |
Collapse
|
2
|
Hamasaki T, Teruya K, Katakura Y. Effect of Hita Tenryo Water™, a natural mineral water, on allergic symptoms induced by cedar in mice. Heliyon 2024; 10:e26915. [PMID: 38444511 PMCID: PMC10912610 DOI: 10.1016/j.heliyon.2024.e26915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/15/2024] [Accepted: 02/21/2024] [Indexed: 03/07/2024] Open
Abstract
The number of patients with allergies to pollen and food is increasing worldwide. In Japan, the prevalence of cedar pollinosis, a type I allergy, is nearly 30% and accounts of hay fever are rising. A potential natural remedy for these allergic diseases may be Hita Tenryo Water™ (referred to simply as Hita Tenryo water), water that is pumped from deep underground in the Hita region of Oita, Japan, which has been the subject of various research reports. Here, we investigated the potential of using Hita Tenryo water to suppress the onset of cedar pollinosis in a mouse model and explored the immunological mechanism of the suppression. Test model mice were given Hita Tenryo water ad libitum to drink and received intraperitoneal administration of (i) tap water (Hw1), (ii) 25% Hita Tenryo water (Hw2) or (iii) 100% Hita Tenryo (Hw3). There were no significant differences in body weight change, feed intake, or water intake among the groups during the experimental period. We examined nose rubbing and sneezing as allergic symptoms. The frequency of rubbing and sneezing tended to decrease in the Hw1 and Hw2 group, and significantly decreased in the Hw3 group compared to control. Total IgE levels in serum were also significantly reduced in Hita Tenryo water intraperitoneal administration groups. In vitro examination of the rate of release of β-hexosaminidase from BL-2H3 cells showed that there were no significantly differences between Hita Tenryo water-treated and control cells. In addition, measurement of Th2-related cytokine levels in concanavalin A-stimulated peripheral blood mononuclear cells revealed a significant decrease in IL-4, IL-6, and IL-10 levels in medium (p < 0.01). In contrast, production of IFN-γ significantly increased (p < 0.01). These results indicate that Hita Tenryo water may alleviate and/or suppress allergic symptoms.
Collapse
Affiliation(s)
- Takeki Hamasaki
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kiichro Teruya
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshinori Katakura
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
3
|
Nakayama M, Kabayama S, Miyazaki M. Application of Electrolyzed Hydrogen Water for Management of Chronic Kidney Disease and Dialysis Treatment-Perspective View. Antioxidants (Basel) 2024; 13:90. [PMID: 38247514 PMCID: PMC10812465 DOI: 10.3390/antiox13010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
Chronic kidney disease (CKD), which is globally on the rise, has become an urgent challenge from the perspective of public health, given its risk factors such as end-stage renal failure, cardiovascular diseases, and infections. The pathophysiology of CKD, including dialysis patients, is deeply associated with enhanced oxidative stress in both the kidneys and the entire body. Therefore, the introduction of a safe and widely applicable antioxidant therapy is expected as a measure against CKD. Electrolyzed hydrogen water (EHW) generated through the electrolysis of water has been confirmed to possess chemical antioxidant capabilities. In Japan, devices producing this water have become popular for household drinking water. In CKD model experiments conducted to date, drinking EHW has been shown to suppress the progression of kidney damage related to hypertension. Furthermore, clinical studies have reported that systemic oxidative stress in patients undergoing dialysis treatment using EHW is suppressed, leading to a reduction in the incidence of cardiovascular complications. In the future, considering EHW as one of the comprehensive measures against CKD holds significant importance. The medical utility of EHW is believed to be substantial, and further investigation is warranted.
Collapse
Affiliation(s)
- Masaaki Nakayama
- Kidney Center, St. Luke’s International Hospital, Tokyo 104-8560, Japan
- Division of Blood Purification, Tohoku University Hospital, Sendai 980-8574, Japan; (S.K.); (M.M.)
| | - Shigeru Kabayama
- Division of Blood Purification, Tohoku University Hospital, Sendai 980-8574, Japan; (S.K.); (M.M.)
- Graduate School of Science, Technology & Innovation, Kobe University, Kobe 657-8501, Japan
- Nihon Trim Co., Ltd., Osaka 530-0001, Japan
| | - Mariko Miyazaki
- Division of Blood Purification, Tohoku University Hospital, Sendai 980-8574, Japan; (S.K.); (M.M.)
- Division of Nephrology, Rheumatology and Endocrinology, Graduate School of Medicine, Tohoku University, Sendai 980-8574, Japan
| |
Collapse
|
4
|
Xie F, Song Y, Yi Y, Jiang X, Ma S, Ma C, Li J, Zhanghuang Z, Liu M, Zhao P, Ma X. Therapeutic Potential of Molecular Hydrogen in Metabolic Diseases from Bench to Bedside. Pharmaceuticals (Basel) 2023; 16:ph16040541. [PMID: 37111299 PMCID: PMC10141176 DOI: 10.3390/ph16040541] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/26/2023] [Accepted: 03/29/2023] [Indexed: 04/29/2023] Open
Abstract
Oxidative stress and chronic inflammation have been implicated in the pathophysiology of metabolic diseases, including diabetes mellitus (DM), metabolic syndrome (MS), fatty liver (FL), atherosclerosis (AS), and obesity. Molecular hydrogen (H2) has long been considered a physiologically inert gas. In the last two decades, accumulating evidence from pre-clinical and clinical studies has indicated that H2 may act as an antioxidant to exert therapeutic and preventive effects on various disorders, including metabolic diseases. However, the mechanisms underlying the action of H2 remain unclear. The purpose of this review was to (1) provide an overview of the current research on the potential effects of H2 on metabolic diseases; (2) discuss the possible mechanisms underlying these effects, including the canonical anti-oxidative, anti-inflammatory, and anti-apoptotic effects, as well as suppression of ER stress, activation of autophagy, improvement of mitochondrial function, regulation of gut microbiota, and other possible mechanisms. The potential target molecules of H2 will also be discussed. With more high-quality clinical trials and in-depth mechanism research, it is believed that H2 will eventually be applied to clinical practice in the future, to benefit more patients with metabolic disease.
Collapse
Affiliation(s)
- Fei Xie
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Yifei Song
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Yang Yi
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Xue Jiang
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Shiwen Ma
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Chen Ma
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Junyu Li
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Ziyi Zhanghuang
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Mengyu Liu
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Pengxiang Zhao
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| | - Xuemei Ma
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
- Beijing Molecular Hydrogen Research Center, Beijing 100124, China
| |
Collapse
|
5
|
Electrolyzed-Reduced Water: Review I. Molecular Hydrogen Is the Exclusive Agent Responsible for the Therapeutic Effects. Int J Mol Sci 2022; 23:ijms232314750. [PMID: 36499079 PMCID: PMC9738607 DOI: 10.3390/ijms232314750] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022] Open
Abstract
Numerous benefits have been attributed to alkaline-electrolyzed-reduced water (ERW). Sometimes these claims are associated with easily debunked concepts. The observed benefits have been conjectured to be due to the intrinsic properties of ERW (e.g., negative oxidation-reduction potential (ORP), alkaline pH, H2 gas), as well enigmatic characteristics (e.g., altered water structure, microclusters, free electrons, active hydrogen, mineral hydrides). The associated pseudoscientific marketing has contributed to the reluctance of mainstream science to accept ERW as having biological effects. Finally, through many in vitro and in vivo studies, each one of these propositions was examined and refuted one-by-one until it was conclusively demonstrated that H2 was the exclusive agent responsible for both the negative ORP and the observed therapeutic effects of ERW. This article briefly apprised the history of ERW and comprehensively reviewed the sequential research demonstrating the importance of H2. We illustrated that the effects of ERW could be readily explained by the known biological effects of H2 and by utilizing conventional chemistry without requiring any metaphysical conjecture (e.g., microclustering, free electrons, etc.) or reliance on implausible notions (e.g., alkaline water neutralizes acidic waste). The H2 concentration of ERW should be measured to ensure it is comparable to those used in clinical studies.
Collapse
|
6
|
Chan YM, Shariff ZM, Chin YS, Ghazali SS, Lee PY, Chan KS. Associations of alkaline water with metabolic risks, sleep quality, muscle strength: A cross-sectional study among postmenopausal women. PLoS One 2022; 17:e0275640. [PMID: 36315555 PMCID: PMC9621423 DOI: 10.1371/journal.pone.0275640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/20/2022] [Indexed: 11/05/2022] Open
Abstract
Much has been claimed on the health benefits of alkaline water including metabolic syndrome (MetS) and its features with scarcity of scientific evidence. Methods: This cross-sectional comparative study was conducted to determine whether regular consumption of alkaline water confers health advantage on blood metabolites, anthropometric measures, sleep quality and muscle strength among postmenopausal women. A total of 304 community-dwelling postmenopausal women were recruited with comparable proportion of regular drinkers of alkaline water and non-drinkers. Participants were ascertained on dietary intake, lifestyle factors, anthropometric and biochemical measurements. Diagnosis of MetS was made according to Joint Interim Statement definition. A total of 47.7% of the participants met MS criteria, with a significant lower proportion of MetS among the alkaline water drinkers. The observed lower fasting plasma glucose (F(1,294) = 24.20, p = 0.025, partial η2 = 0.435), triglyceride/high-density lipoprotein concentration ratio (F(1,294) = 21.06, p = 0.023, partial η2 = 0.360), diastolic blood pressure (F(1,294) = 7.85, p = 0.046, partial η2 = 0.258) and waist circumference (F(1,294) = 9.261, p = 0.038, partial η2 = 0.263) in the alkaline water drinkers could be considered as favourable outcomes of regular consumption of alkaline water. In addition, water alkalization improved duration of sleep (F(1,294) = 32.05, p = 0.007, partial η2 = 0.451) and handgrip strength F(1,294) = 27.51, p = 0.011, partial η2 = 0.448). Low density lipoprotein cholesterol concentration (F(1,294) = 1.772, p = 0.287, partial η2 = 0.014), body weight (F(1,294) = 1.985, p = 0.145, partial η2 = 0.013) and systolic blood pressure (F(1,294) = 1.656, p = 0.301, partial η2 = 0.010) were comparable between the two different water drinking behaviours. In conclusion, drinking adequate of water is paramount for public health with access to good quality drinking water remains a critical issue. While consumption of alkaline water may be considered as a source of easy-to implement lifestyle to modulate metabolic features, sleep duration and muscle strength, further studies are warranted for unravelling the precise mechanism of alkaline water consumption on the improvement and prevention of MetS and its individual features, muscle strength and sleep duration as well as identification of full spectrum of individuals that could benefit from its consumption.
Collapse
Affiliation(s)
- Yoke Mun Chan
- Faculty of Medicine and Health Sciences, Department of Dietetics, Universiti Putra Malaysia (UPM), Serdang, Malaysia
- Faculty of Medicine and Health Sciences, Research Center of Excellence Nutrition and Non-Communicable Diseases, Universiti Putra Malaysia (UPM), Serdang, Malaysia
- Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang, Malaysia
- * E-mail:
| | - Zalilah Mohd Shariff
- Faculty of Medicine and Health Sciences, Department of Nutrition, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Yit Siew Chin
- Faculty of Medicine and Health Sciences, Research Center of Excellence Nutrition and Non-Communicable Diseases, Universiti Putra Malaysia (UPM), Serdang, Malaysia
- Faculty of Medicine and Health Sciences, Department of Nutrition, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Sazlina Shariff Ghazali
- Faculty of Medicine and Health Sciences, Department of Family Medicine, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Ping Yein Lee
- Faculty of Medicine, UMeHealth Unit, Universiti Malaya (UM), Kuala Lumpur, Malaysia
| | - Kai Sze Chan
- Faculty of Medicine and Health Sciences, Department of Dietetics, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| |
Collapse
|
7
|
A new colorimetric method for determining antioxidant levels using 3,5-dibromo-4-nitrosobenzene sulfonate (DBNBS). MethodsX 2022; 9:101797. [PMID: 35958099 PMCID: PMC9358457 DOI: 10.1016/j.mex.2022.101797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/21/2022] [Indexed: 11/15/2022] Open
Abstract
We describe here a novel assay that determines the total a+ntioxidative activities of known antioxidants and antioxidants in beverages. The method employs the substrate 3,5-dibromo-4-nitrosobenzene sulfonate (DBNBS) that yields the colored product 3,5,3’,5’-tetrabromoazobenzene sulfate sodium salt (azo-TBBS). The amounts of azo-TBBS are measured using HPLC and then used to calculate total antioxidative capacity (TAC) values. We first show that the TAC values measured using the new DBNBS system were significantly higher compared with the control. The assay was validated through further analysis of 56 compounds, including previously characterized antioxidants. The data are consistent with published values. Here we describe in detail the application of the DBNBS method to the measurement of the TAC values of eight beverages, including wines and fruit juices. The DBNBS assay employs a readily applicable protocol that sensitively determines the levels of antioxidants in foodstuffs. - A new DBNBS-mediated antioxidant assay system is compared with standard DPPH and ORAC assays - DBNBS traps hydrogen radicals to generate a readily measured colored reduction product that quantifies antioxidant levels
Collapse
|
8
|
The Effect of Alkaline Water and Sodium Ascorbate on Glucose and Cortisol Levels During Acute Hyperthermic Stress in White Laboratory Rats. MACEDONIAN VETERINARY REVIEW 2021. [DOI: 10.2478/macvetrev-2021-0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Stress can be a reason for some physiological and biological disorders in the body. The antioxidative defense system is necessary for the maintenance of redox homeostasis in the organisms. Alkaline water (AW) is in the focus of the scientific interest due to its antioxidative effect. The treatment with AW and sodium ascorbate (SA) is expected to have potential preventive effect on the organism to hyperthermic stress. The aim of this study was to investigate the effect of AW and SA on glucose and cortisol levels during acute hyperthermic stress, in white female Wistar laboratory rats. The rats were divided into three groups, each having 10 subjects. They were exposed in hyperthermic conditions (41˚C) for 80 min, in 21 consecutive days in order to induce oxidative stress. The first group received drinkable water (control group), the second AW, and the third, AW and SA. Plasma glucose levels were determined by colorimetric method. Cortisol level was measured by the enzyme-linked immunosorbent assay method (ELISA). The means were compared using the Tukey test. Differences were considered significant at a level of p<0.05. Our results showed that levels of glucose and cortisol were significantly higher in the group treated with AW on the 21st day after treatment (p<0.0001), but not on the 7th and 14th day as compared to the control group. Also, co-treatment of animals with AW and SA had significantly increased the levels of glucose and cortisol on the 21st day after treatment, indicating a synergistic effect. In conclusion, the individual action of AW or in synergism with SA caused a high protective effect on oxidative damage in white Wistar laboratory rats.
Collapse
|
9
|
The Search for the Elixir of Life: On the Therapeutic Potential of Alkaline Reduced Water in Metabolic Syndromes. Processes (Basel) 2021. [DOI: 10.3390/pr9111876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Our body composition is enormously influenced by our lifestyle choices, which affect our health and longevity. Nutrition and physical activities both impact overall metabolic condition, thus, a positive energy balance causes oxidative stress and inflammation, hastening the development of metabolic syndrome. With this knowledge, boosting endogenous and exogenous antioxidants has emerged as a therapeutic strategy for combating metabolic disorders. One of the promising therapeutic inventions is the use of alkaline reduced water (ARW). Aside from its hydrating and non-caloric properties, ARW has demonstrated strong antioxidant and anti-inflammatory properties that can help stabilize physiologic turmoil caused by oxidative stress and inflammation. This review article is a synthesis of studies where we elaborate on the intra- and extracellular effects of drinking ARW, and relate these to the pathophysiology of common metabolic disorders, such as obesity, diabetes mellitus, non-alcoholic fatty liver disease, and some cancers. Highlighting the health-promoting benefits of ARW, we also emphasize the importance of maintaining a healthy lifestyle by incorporating exercise and practicing a balanced diet as forms of habit.
Collapse
|
10
|
Yano S, Wang J, Kabayama S, Hara T. Electrolyzed Hydrogen Water Protects against Ethanol-Induced Cytotoxicity by Regulating Aldehyde Metabolism-Associated Enzymes in the Hepatic Cell Line HepG2. Antioxidants (Basel) 2021; 10:antiox10050801. [PMID: 34069398 PMCID: PMC8158728 DOI: 10.3390/antiox10050801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 02/05/2023] Open
Abstract
Excessive alcohol consumption can cause multi-systemic diseases. Among them, alcoholic liver disease is the most frequent and serious disease. Electrolytic hydrogen water (EHW) is produced at the cathode during electrolysis of water and contains a large amount of molecular hydrogen and a low content of platinum nanoparticles with alkaline properties. In this study, we found that EHW inhibits ethanol-induced cytotoxicity by decreasing the intracellular acetaldehyde, a toxic substance produced by ethanol degradation, in hepatocyte cell lines HepG2. Analysis of the mechanism of action revealed that EHW inhibits the metabolism of ethanol to acetaldehyde by suppressing alcohol dehydrogenase. EHW also promotes the metabolism of acetaldehyde to acetic acid by activating aldehyde dehydrogenase, which plays to reduce aldehyde toxicity and intracellular reactive oxygen species in HepG2 cells. These functions were correlated with the concentration of molecular hydrogen in EHW, and were abolished by degassing treatment, suggesting that molecular hydrogen may contribute as a functional factor in the suppression of ethanol-induced hepatocellular damage. Furthermore, hydrogen water with high dissolved hydrogen molecule showed the same hepatocellular protective effect against ethanol as the EHW. These results suggest that EHW may be useful in the prevention of alcoholic liver disease.
Collapse
Affiliation(s)
- Satoshi Yano
- Laboratory of Food and Life Science, Faculty of Human Sciences, Waseda University, Tokorozawa 359-1192, Japan; (S.Y.); (J.W.)
| | - Jinyun Wang
- Laboratory of Food and Life Science, Faculty of Human Sciences, Waseda University, Tokorozawa 359-1192, Japan; (S.Y.); (J.W.)
| | | | - Taichi Hara
- Laboratory of Food and Life Science, Faculty of Human Sciences, Waseda University, Tokorozawa 359-1192, Japan; (S.Y.); (J.W.)
- Correspondence: ; Tel.: +81-4-2947-6763
| |
Collapse
|
11
|
Redox Effects of Molecular Hydrogen and Its Therapeutic Efficacy in the Treatment of Neurodegenerative Diseases. Processes (Basel) 2021. [DOI: 10.3390/pr9020308] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress (OS) and neuroinflammatory stress affect many neurological disorders. Despite the clinical significance of oxidative damage in neurological disorders, still, no effective and safe treatment methods for neuro diseases are available. With this, molecular hydrogen (H2) has been recently reported as an antioxidant and anti-inflammatory agent to treat several oxidative stress-related diseases. In animal and human clinical trials, the routes for H2 administration are mainly categorized into three types: H2 gas inhalation, H2 water dissolving, and H2-dissolved saline injection. This review explores some significant progress in research on H2 use in neurodegenerative diseases (NDs), including Alzheimer’s disease, Parkinson’s disease, neonatal disorders of the brain, and other NDs (retinal ischemia and traumatic brain injury). Even though most neurological problems are not currently curable, these studies have shown the therapeutic potential for prevention, treatment, and mitigation of H2 administration. Several possible H2-effectors, including cell signaling molecules and hormones, which prevent OS and inflammation, will also be addressed. However, more clinical and other related studies are required to evaluate the direct H2 target molecule.
Collapse
|
12
|
Rias YA, Kurniawan AL, Chang CW, Gordon CJ, Tsai HT. Synergistic Effects of Regular Walking and Alkaline Electrolyzed Water on Decreasing Inflammation and Oxidative Stress, and Increasing Quality of Life in Individuals with Type 2 Diabetes: A Community Based Randomized Controlled Trial. Antioxidants (Basel) 2020; 9:E946. [PMID: 33019646 PMCID: PMC7599474 DOI: 10.3390/antiox9100946] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/17/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023] Open
Abstract
Alkaline electrolyzed water (AEW) and walking are strongly recommended for ameliorating oxidative stress and inflammation. Nevertheless, there is a lack of information on the combination of both on alleviating inflammation, oxidative stress, and improving the quality of life (QoL). We investigated the synergistic effects of drinking AEW and walking on advanced glycation end products (AGEs), advanced oxidation protein products (AOPPs), malondialdehyde (MDA), white blood cells (WBCs), neutrophil-lymphocyte ratio (NLR) and QoL. In total, 81 eligible patients with type 2 diabetes (T2DM) were randomly allocated via single blind to four groups: consumed 2 L/day of AEW (n = 20), instructed to walk for 150 min/week (n = 20), received a combination of AEW and walking (n = 20), and continue their habitual diet and activity (n = 21). Data were collected and analyzed before and after 8 weeks of intervention. Our results showed a significant interaction between the group and time, with both AEW and walking independently and synergistically ameliorating AGEs, AOPPs, MDA, NLR and WBCs levels. Moreover, the AEW group had a higher physical and total QoL score. The walking group and the combined group had higher scores in physical, mental and total QoL compared to the control group. The synergistic effect of AEW and regular walking are an advisable treatment for patients with T2DM.
Collapse
Affiliation(s)
- Yohanes Andy Rias
- School of Nursing, College of Nursing, Taipei Medical University, Taipei 11031, Taiwan;
- Faculty of Health and Medicine, College of Nursing, Institut Ilmu Kesehatan Bhakti Wiyata, Kediri 64114, Indonesia
| | - Adi Lukas Kurniawan
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, 365 Ming-te Road, Beitou District, Taipei 112, Taiwan;
| | - Ching Wen Chang
- Department of Obstetrics and Gynecology, Taipei Medical University Hospital, Taipei 11031, Taiwan;
| | - Christopher James Gordon
- Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Camperdown 2050, Australia;
| | - Hsiu Ting Tsai
- School of Nursing, College of Nursing, Taipei Medical University, Taipei 11031, Taiwan;
- Post-Baccalaureate Program in Nursing, College of Nursing, Taipei Medical University, Taipei 11031, Taiwan
| |
Collapse
|
13
|
Wang Y, Fugetsu B, Sakata I, Fujisue C, Kabayama S, Tahara N, Morisawa S. Monolayered Platinum Nanoparticles as Efficient Electrocatalysts for the Mass Production of Electrolyzed Hydrogen Water. Sci Rep 2020; 10:10126. [PMID: 32576884 PMCID: PMC7311417 DOI: 10.1038/s41598-020-67107-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 05/28/2020] [Indexed: 02/07/2023] Open
Abstract
High-performance/low-cost platinum (Pt)-based electrocatalysts have been established by top-coating both sides of a titanium plate with Pt nanoparticles. The average diameter of the Pt nanoparticles used in this study is approximately 100 nm. Three types of Pt top-coated Pt/Ti electrocatalysts, each having different top-coated Pt layer thicknesses, are prepared. Type I is a monolayered Pt top-coated type, in which the thickness of the top-coated Pt layer is approximately 100 nm; Type II is a few-layered type with a top-coated Pt layer thickness of approximately 200 nm, and Type III is a multilayered type with a top-coated Pt layer thickness of approximately 750 nm. The mass loading of Pt is 0.0215 mg cm−2 for Type I, 0.043 mg cm−2 for Type II, and 0.161 mg cm−2 for Type III. The electrocatalytic activities of each type of Pt/Ti electrocatalyst are evaluated through the electrolysis of acidic water and tap water. Type I gives the highest electrocatalytic efficiencies, which are comparable or even better than the electrocatalytic efficiencies of the state-of-the-art commercially available Pt/C electrode and other metal-/carbon-based HER catalysts. For example, in the case of the electrolysis of acidic water at an overpotential of 0.15 V, Type I shows a Tafel slope of 29 mV dec−1 and a current density of 27.5 mA cm−2. Even in the case of the electrolysis of tap water, Type I gives an HER Faradaic efficiency of 92%. A model of water (H2O), hydronium ions (H3O+), and hydroxyl ions (OH−) properly adsorbing on the Pt (111) facet is proposed to explain the electrocatalytic mechanism. New insights into the distinguishing properties of the resultant electrolyzed hydrogen water (EHW), namely, the healthy beneficial effects of EHW, are also described, and a new concept of storing and carrying reductive hydrogen (H*) by free Pt nanoparticles is proposed.
Collapse
Affiliation(s)
- Yanqing Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China. .,Nihon Trim Co. Ltd, Oyodonaka, Kita-ku, Osaka, Japan.
| | - Bunshi Fugetsu
- Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan.
| | - Ichiro Sakata
- Institute for Future Initiatives, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan.,School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Chika Fujisue
- School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | | | - Norio Tahara
- Nihon Trim Co. Ltd, Oyodonaka, Kita-ku, Osaka, Japan
| | | |
Collapse
|
14
|
Electrochemically Reduced Water Delays Mammary Tumors Growth in Mice and Inhibits Breast Cancer Cells Survival In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:4753507. [PMID: 30402124 PMCID: PMC6196883 DOI: 10.1155/2018/4753507] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/25/2018] [Accepted: 09/16/2018] [Indexed: 12/30/2022]
Abstract
Electrochemical reduced water (ERW) has been proposed to have beneficial effects on human health due to its rich content of H2 and the presence of platinum nanoparticles with antioxidant effects. Many studies have demonstrated that ERW scavenging properties are able to reduce the damage caused by oxidative stress in different experimental models. Although few in vivo studies have been reported, it has been demonstrated that ERW may display anticancer effects by induction of tumor cells apoptosis and reduction of both angiogenesis and inflammation. In this study, we show that ERW treatment of MCF-7, MDA-MB-453, and mouse (TUBO) breast cancer cells inhibited cell survival in a time-dependent fashion. ERW decreased ErbB2/neu expression and impaired pERK1/ERK2 and AKT phosphorylation in breast cancer cells. In addition, ERW treatment induced apoptosis of breast cancer cell lines independently of the status of p53 and ER and PR receptors. Our in vivo results showed that ERW treatment of transgenic BALB-neuT mice delayed the development of mammary tumors compared to the control. In addition, ERW induced a significant prolongation of tumor-free survival and a reduction in tumor multiplicity. Overall, these results suggest a potential beneficial role of ERW in inhibiting cancer cells growth.
Collapse
|
15
|
Hamasaki T, Harada G, Nakamichi N, Kabayama S, Teruya K, Fugetsu B, Gong W, Sakata I, Shirahata S. Electrochemically reduced water exerts superior reactive oxygen species scavenging activity in HT1080 cells than the equivalent level of hydrogen-dissolved water. PLoS One 2017; 12:e0171192. [PMID: 28182635 PMCID: PMC5300231 DOI: 10.1371/journal.pone.0171192] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 01/18/2017] [Indexed: 12/12/2022] Open
Abstract
Electrochemically reduced water (ERW) is produced near a cathode during electrolysis and exhibits an alkaline pH, contains richly dissolved hydrogen, and contains a small amount of platinum nanoparticles. ERW has reactive oxygen species (ROS)-scavenging activity and recent studies demonstrated that hydrogen-dissolved water exhibits ROS-scavenging activity. Thus, the antioxidative capacity of ERW is postulated to be dependent on the presence of hydrogen levels; however, there is no report verifying the role of dissolved hydrogen in ERW. In this report, we clarify whether the responsive factor for antioxidative activity in ERW is dissolved hydrogen. The intracellular ROS scavenging activity of ERW and hydrogen-dissolved water was tested by both fluorescent stain method and immuno spin trapping assay. We confirm that ERW possessed electrolysis intensity-dependent intracellular ROS-scavenging activity, and ERW exerts significantly superior ROS-scavenging activity in HT1080 cells than the equivalent level of hydrogen-dissolved water. ERW retained its ROS-scavenging activity after removal of dissolved hydrogen, but lost its activity when autoclaved. An oxygen radical absorbance capacity assay, the 2,2-diphenyl-1-picrylhydrazyl assay and chemiluminescence assay could not detect radical-scavenging activity in both ERW and hydrogen-dissolved water. These results indicate that ERW contains electrolysis-dependent hydrogen and an additional antioxidative factor predicted to be platinum nanoparticles.
Collapse
Affiliation(s)
- Takeki Hamasaki
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan
| | - Gakuro Harada
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan
| | - Noboru Nakamichi
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan
| | | | - Kiichiro Teruya
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan
| | - Bunshi Fugetsu
- Innovation Policy Research Center, IPRC, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Wei Gong
- Innovation Policy Research Center, IPRC, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Ichiro Sakata
- Policy Alternative Research Institute, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, Japan
| | - Sanetaka Shirahata
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, Japan
- * E-mail:
| |
Collapse
|
16
|
Jiang B, Ji M, Liu W, Chen L, Cai Z, Zhao Y, Bi X. Antidiabetic activities of a cucurbitane‑type triterpenoid compound from Momordica charantia in alloxan‑induced diabetic mice. Mol Med Rep 2016; 14:4865-4872. [PMID: 27748816 DOI: 10.3892/mmr.2016.5800] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 09/12/2016] [Indexed: 11/06/2022] Open
Abstract
Momordica charantia has been used to treat a variety of diseases, including inflammation, diabetes and cancer. A cucurbitane‑type triterpenoid [(19R,23E)‑5β, 19‑epoxy‑19‑methoxy‑cucurbita‑6,23,25‑trien‑3 β‑o‑l] previously isolated from M. charantia was demonstrated to possess significant cytotoxicity against cancer cells. The current study investigated the effects of this compound (referred to as compound K16) on diabetes using an alloxan‑induced diabetic mouse model. C57BL/6J mice were intraperitoneally injected with alloxan (10 mg/kg body weight), and those with blood glucose concentration higher than 10 mM were selected for further experiments. Diabetic C57BL/6J mice induced by alloxan were administered 0.9% saline solution, metformine (10 mg/kg body weight), or K16 (25 or 50 mg/kg body weight) by gavage for 4 weeks, followed by analysis of blood glucose level, glucose tolerance, serum lipid levels and organ indexes. The results demonstrated that compound K16 significantly reduced blood glucose (31‑48.6%) and blood lipids (13.5‑42.8%; triglycerides and cholesterol), while improving glucose tolerance compared with diabetic mice treated with saline solution, suggesting a positive improvement in glucose and lipid metabolism following K16 treatment. Furthermore, similarly to metformine, compound K16 markedly upregulated the expression of a number of insulin signaling pathway‑associated proteins, including insulin receptor, insulin receptor substrate 1, glycogen synthase kinase 3β, Akt serine/threonine kinase, and the transcript levels of glucose transporter type 4 and AMP‑activated protein kinase α1. The results of the current study demonstrated that compound K16 alleviated diabetic metabolic symptoms in alloxan‑induced diabetic mice, potentially by affecting genes and proteins involved in insulin metabolism signaling.
Collapse
Affiliation(s)
- Bowen Jiang
- College of Life Science, Liaoning University, Shenyang, Liaoning 110036, P.R. China
| | - Mingli Ji
- Department of Physiology, College of Basic Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Wei Liu
- College of Life Science, Liaoning University, Shenyang, Liaoning 110036, P.R. China
| | - Lili Chen
- College of Life Science, Liaoning University, Shenyang, Liaoning 110036, P.R. China
| | - Zhiyu Cai
- College of Life Science, Liaoning University, Shenyang, Liaoning 110036, P.R. China
| | - Yuqing Zhao
- Department of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, P.R. China
| | - Xiuli Bi
- College of Life Science, Liaoning University, Shenyang, Liaoning 110036, P.R. China
| |
Collapse
|
17
|
Franceschelli S, Gatta DMP, Pesce M, Ferrone A, Patruno A, de Lutiis MA, Grilli A, Felaco M, Croce F, Speranza L. New Approach in Translational Medicine: Effects of Electrolyzed Reduced Water (ERW) on NF-κB/iNOS Pathway in U937 Cell Line under Altered Redox State. Int J Mol Sci 2016; 17:ijms17091461. [PMID: 27598129 PMCID: PMC5037740 DOI: 10.3390/ijms17091461] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/03/2016] [Accepted: 08/12/2016] [Indexed: 12/24/2022] Open
Abstract
It is known that increased levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) can exert harmful effects, altering the cellular redox state. Electrolyzed Reduced Water (ERW) produced near the cathode during water electrolysis exhibits high pH, high concentration of dissolved hydrogen and an extremely negative redox potential. Several findings indicate that ERW had the ability of a scavenger free radical, which results from hydrogen molecules with a high reducing ability and may participate in the redox regulation of cellular function. We investigated the effect of ERW on H2O2-induced U937 damage by evaluating the modulation of redox cellular state. Western blotting and spectrophotometrical analysis showed that ERW inhibited oxidative stress by restoring the antioxidant capacity of superoxide dismutase, catalase and glutathione peroxidase. Consequently, ERW restores the ability of the glutathione reductase to supply the cell of an important endogenous antioxidant, such as GSH, reversing the inhibitory effect of H2O2 on redox balance of U937 cells. Therefore, this means a reduction of cytotoxicity induced by peroxynitrite via a downregulation of the NF-κB/iNOS pathway and could be used as an antioxidant for preventive and therapeutic application. In conclusion, ERW can protect the cellular redox balance, reducing the risk of several diseases with altered cellular homeostasis such as inflammation.
Collapse
Affiliation(s)
- Sara Franceschelli
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Daniela Maria Pia Gatta
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Mirko Pesce
- Medicine and Health Science School, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Alessio Ferrone
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Antonia Patruno
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Maria Anna de Lutiis
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Alfredo Grilli
- Medicine and Health Science School, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Mario Felaco
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Fausto Croce
- Department of Farmacy, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| | - Lorenza Speranza
- Department of Medicine and Science of Aging, University of Gabriele D'Annunzio, 66100 Chieti, Italy.
| |
Collapse
|
18
|
Nakayama M, Kabayama S, Ito S. The hydrogen molecule as antioxidant therapy: clinical application in hemodialysis and perspectives. RENAL REPLACEMENT THERAPY 2016. [DOI: 10.1186/s41100-016-0036-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
19
|
Ichihara M, Sobue S, Ito M, Ito M, Hirayama M, Ohno K. Beneficial biological effects and the underlying mechanisms of molecular hydrogen - comprehensive review of 321 original articles. Med Gas Res 2015; 5:12. [PMID: 26483953 PMCID: PMC4610055 DOI: 10.1186/s13618-015-0035-1] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 10/09/2015] [Indexed: 02/08/2023] Open
Abstract
Therapeutic effects of molecular hydrogen for a wide range of disease models and human diseases have been investigated since 2007. A total of 321 original articles have been published from 2007 to June 2015. Most studies have been conducted in Japan, China, and the USA. About three-quarters of the articles show the effects in mice and rats. The number of clinical trials is increasing every year. In most diseases, the effect of hydrogen has been reported with hydrogen water or hydrogen gas, which was followed by confirmation of the effect with hydrogen-rich saline. Hydrogen water is mostly given ad libitum. Hydrogen gas of less than 4 % is given by inhalation. The effects have been reported in essentially all organs covering 31 disease categories that can be subdivided into 166 disease models, human diseases, treatment-associated pathologies, and pathophysiological conditions of plants with a predominance of oxidative stress-mediated diseases and inflammatory diseases. Specific extinctions of hydroxyl radical and peroxynitrite were initially presented, but the radical-scavenging effect of hydrogen cannot be held solely accountable for its drastic effects. We and others have shown that the effects can be mediated by modulating activities and expressions of various molecules such as Lyn, ERK, p38, JNK, ASK1, Akt, GTP-Rac1, iNOS, Nox1, NF-κB p65, IκBα, STAT3, NFATc1, c-Fos, and ghrelin. Master regulator(s) that drive these modifications, however, remain to be elucidated and are currently being extensively investigated.
Collapse
Affiliation(s)
- Masatoshi Ichihara
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, 487-8501 Japan
| | - Sayaka Sobue
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, 487-8501 Japan
| | - Mikako Ito
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku Nagoya, 466-8550 Japan
| | - Masafumi Ito
- Research Team for Mechanism of Aging, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi, Tokyo, 173-0015 Japan
| | - Masaaki Hirayama
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-8673 Japan
| | - Kinji Ohno
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku Nagoya, 466-8550 Japan
| |
Collapse
|
20
|
Abstract
1. Hydrogen is a colourless, odourless, tasteless and flammable gas. Hydrogen is considered a physiologically inert gas and is often used in deep sea diving medicine. In mammals, endogenous hydrogen is produced as a result of the fermentation of non-digestible carbohydrates by intestinal bacteria and it is absorbed into the systemic circulation. 2. Recent evidence indicates that hydrogen is a potent anti-oxidative, anti-apoptotic and anti-inflammatory agent and so may have potential medical application. The present review evaluates the concept of 'hydrogen resuscitation', based on knowledge that hydrogen treatment effectively protects cells, tissues and organs against oxidative injury and helps them recover from dysfunction. 3. Hydrogen therapy can be delivered by inhalation, the administration of hydrogen-enriched fluid or by approaches that affect endogenous hydrogen production. 4. Studies have shown that hydrogen resuscitation has cytoprotective effects in different cell types and disease models, including ischaemia-reperfusion injury, inflammation, toxicity, trauma and metabolic disease. The underlying mechanism may be the selective elimination of hydroxyl radicals, although other mechanisms may also be involved (e.g. hydrogen functioning as a gaseous signalling molecule). 5. Hydrogen resuscitation may have several potential advantages over current pharmacological therapies for oxidative injuries. However, more work is needed to identify the precise mechanism underlying the actions of hydrogen and to validate its therapeutic potential in the clinical setting.
Collapse
Affiliation(s)
- Xing-Feng Zheng
- Department of Burn Surgery, Changhai HospitalDepartment of Diving Medicine, Second Military Medical University, Shanghai, China
| | | | | |
Collapse
|
21
|
Tange Y, Takesawa S, Yoshitake S. Dialysate with high dissolved hydrogen facilitates dissociation of indoxyl sulfate from albumin. Nephrourol Mon 2015; 7:e26847. [PMID: 25883914 PMCID: PMC4393549 DOI: 10.5812/numonthly.26847] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 02/04/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Protein-bound toxins such as indoxyl sulfate (IS) are not efficiently removed by conventional hemodialysis (HD). OBJECTIVES To improve the removal of IS, we performed an in vitro study to evaluate the effects of high dissolved hydrogen on the dissociation of IS from albumin using simulated HD. MATERIALS AND METHODS Wasted dialysate from peritoneal dialysis was concentrated a hundred times using extracorporeal ultrafiltration method. Dialysate with high dissolved hydrogen was made by mixing concentrated dialysis solution and electrolyzed-reduced water. The amounts of free fractions of IS were determined by high performance liquid chromatography. RESULTS IS was significantly dissociated from albumin using dialysate with high dissolved hydrogen compared with conventional dialysate (P < 0.05). CONCLUSIONS Effective removal of IS is expected using a dialysate with high dissolved hydrogen.
Collapse
Affiliation(s)
- Yoshihiro Tange
- Department of Medical Engineering, School of Health Science, Kyushu University of Health and Welfare Yoshinomachi, Nobeoka, Japan
- Corresponding author: Yoshihiro Tange, Department of Medical Engineering, School of Health Science, Kyushu University of Health and Welfare Yoshinomachi, Nobeoka, Miyazaki, Japan. Tel/Fax: +81-982235592, E-mail:
| | - Shingo Takesawa
- Department of Medical Engineering, School of Health Science, Kyushu University of Health and Welfare Yoshinomachi, Nobeoka, Japan
| | - Shigenori Yoshitake
- Department of Medical Engineering, School of Health Science, Kyushu University of Health and Welfare Yoshinomachi, Nobeoka, Japan
| |
Collapse
|
22
|
Electrochemically reduced water protects neural cells from oxidative damage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:869121. [PMID: 25383141 PMCID: PMC4212634 DOI: 10.1155/2014/869121] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 08/19/2014] [Accepted: 09/02/2014] [Indexed: 12/17/2022]
Abstract
Aging-related neurodegenerative disorders are closely associated with mitochondrial dysfunction and oxidative stresses and their incidence tends to increase with aging. Brain is the most vulnerable to reactive species generated by a higher rate of oxygen consumption and glucose utilization compared to other organs. Electrochemically reduced water (ERW) was demonstrated to scavenge reactive oxygen species (ROS) in several cell types. In the present study, the protective effect of ERW against hydrogen peroxide (H2O2) and nitric oxide (NO) was investigated in several rodent neuronal cell lines and primary cells. ERW was found to significantly suppress H2O2 (50–200 μM) induced PC12 and SFME cell deaths. ERW scavenged intracellular ROS and exhibited a protective effect against neuronal network damage caused by 200 μM H2O2 in N1E-115 cells. ERW significantly suppressed NO-induced cytotoxicity in PC12 cells despite the fact that it did not have the ability to scavenge intracellular NO. ERW significantly suppressed both glutamate induced Ca2+ influx and the resulting cytotoxicity in primary cells. These results collectively demonstrated for the first time that ERW protects several types of neuronal cells by scavenging ROS because of the presence of hydrogen and platinum nanoparticles dissolved in ERW.
Collapse
|
23
|
Hamasaki T, Nakamichi N, Teruya K, Shirahata S. Removal efficiency of radioactive cesium and iodine ions by a flow-type apparatus designed for electrochemically reduced water production. PLoS One 2014; 9:e102218. [PMID: 25029447 PMCID: PMC4100768 DOI: 10.1371/journal.pone.0102218] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 06/17/2014] [Indexed: 01/18/2023] Open
Abstract
The Fukushima Daiichi Nuclear Power Plant accident on March 11, 2011 attracted people’s attention, with anxiety over possible radiation hazards. Immediate and long-term concerns are around protection from external and internal exposure by the liberated radionuclides. In particular, residents living in the affected regions are most concerned about ingesting contaminated foodstuffs, including drinking water. Efficient removal of radionuclides from rainwater and drinking water has been reported using several pot-type filtration devices. A currently used flow-type test apparatus is expected to simultaneously provide radionuclide elimination prior to ingestion and protection from internal exposure by accidental ingestion of radionuclides through the use of a micro-carbon carboxymethyl cartridge unit and an electrochemically reduced water production unit, respectively. However, the removability of radionuclides from contaminated tap water has not been tested to date. Thus, the current research was undertaken to assess the capability of the apparatus to remove radionuclides from artificially contaminated tap water. The results presented here demonstrate that the apparatus can reduce radioactivity levels to below the detection limit in applied tap water containing either 300 Bq/kg of 137Cs or 150 Bq/kg of 125I. The apparatus had a removal efficiency of over 90% for all concentration ranges of radio–cesium and –iodine tested. The results showing efficient radionuclide removability, together with previous studies on molecular hydrogen and platinum nanoparticles as reactive oxygen species scavengers, strongly suggest that the test apparatus has the potential to offer maximum safety against radionuclide-contaminated foodstuffs, including drinking water.
Collapse
Affiliation(s)
- Takeki Hamasaki
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Noboru Nakamichi
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Kiichiro Teruya
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Sanetaka Shirahata
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
- * E-mail:
| |
Collapse
|
24
|
Sun JC, Xu T, Zuo Q, Wang RB, Qi AQ, Cao WL, Sun AJ, Sun XJ, Xu J. Hydrogen-rich saline promotes survival of retinal ganglion cells in a rat model of optic nerve crush. PLoS One 2014; 9:e99299. [PMID: 24915536 PMCID: PMC4051757 DOI: 10.1371/journal.pone.0099299] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/13/2014] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE To investigate the effect of molecular hydrogen (H2) in a rat model subjected to optic nerve crush (ONC). METHODS We tested the hypothesis that after optic nerve crush (ONC), retinal ganglion cell (RGC) could be protected by H₂. Rats in different groups received saline or hydrogen-rich saline every day for 14 days after ONC. Retinas from animals in each group underwent measurements of hematoxylin and eosin (H&E) staining, cholera toxin beta (CTB) tracing, gamma synuclein staining, and terminal deoxynucleotidyltransferase-mediated dUTP nick end labeling (TUNEL) staining 2 weeks post operation. Flash visual evoked potentials (FVEP) and pupillary light reflex (PLR) were then tested to evaluate the function of optic nerve. The malondialdehyde (MDA) level in retina was evaluated. RESULTS H&E, gamma synuclein staining and CTB tracing showed that the survival rate of RGCs in hydrogen saline-treated group was significantly higher than that in saline-treated group. Apoptosis of RGCs assessed by TUNEL staining were less observed in hydrogen saline-treated group. The MDA level in retina of H₂ group was much lower than that in placebo group. Furthermore, animals treated with hydrogen saline showed better function of optic nerve in assessments of FVEP and PLR. CONCLUSION These results demonstrated that H₂ protects RGCs and helps preserve the visual function after ONC and had a neuroprotective effect in a rat model subjected to ONC.
Collapse
Affiliation(s)
- Jing-chuan Sun
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
- Graduates Management Unit, Second Military Medical University, Shanghai, PR China
| | - Tao Xu
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
- Graduates Management Unit, Second Military Medical University, Shanghai, PR China
| | - Qiao Zuo
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
- Graduates Management Unit, Second Military Medical University, Shanghai, PR China
| | - Ruo-bing Wang
- Department of Ophthalmology, Shanghai Jiaotong University Affiliated Shanghai First People's Hospital, Shanghai, PR China
| | - Ai-qing Qi
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
| | - Wen-luo Cao
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
| | - Ai-jun Sun
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
| | - Xue-jun Sun
- Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai, PR China
| | - Jiajun Xu
- Department of Anatomy, Second Military Medical University, Shanghai, PR China
| |
Collapse
|
25
|
Xue J, Shang G, Tanaka Y, Saihara Y, Hou L, Velasquez N, Liu W, Lu Y. Dose-dependent inhibition of gastric injury by hydrogen in alkaline electrolyzed drinking water. Altern Ther Health Med 2014; 14:81. [PMID: 24589018 PMCID: PMC3944674 DOI: 10.1186/1472-6882-14-81] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 02/25/2014] [Indexed: 12/20/2022]
Abstract
Background Hydrogen has been reported to relieve damage in many disease models, and is a potential additive in drinking water to provide protective effects for patients as several clinical studies revealed. However, the absence of a dose–response relationship in the application of hydrogen is puzzling. We attempted to identify the dose–response relationship of hydrogen in alkaline electrolyzed drinking water through the aspirin induced gastric injury model. Methods In this study, hydrogen-rich alkaline water was obtained by adding H2 to electrolyzed water at one atmosphere pressure. After 2 weeks of drinking, we detected the gastric mucosal damage together with MPO, MDA and 8-OHdG in rat aspirin induced gastric injury model. Results Hydrogen-dose dependent inhibition was observed in stomach mucosal. Under pH 8.5, 0.07, 0.22 and 0.84 ppm hydrogen exhibited a high correlation with inhibitory effects showed by erosion area, MPO activity and MDA content in the stomach. Gastric histology also demonstrated the inhibition of damage by hydrogen-rich alkaline water. However, 8-OHdG level in serum did not have significant hydrogen-dose dependent effect. pH 9.5 showed higher but not significant inhibitory response compared with pH 8.5. Conclusions Hydrogen is effective in relieving the gastric injury induced by aspirin-HCl, and the inhibitory effect is dose-dependent. The reason behind this may be that hydrogen-rich water directly interacted with the target tissue, while the hydrogen concentration in blood was buffered by liver glycogen, evoking a suppressed dose–response effect. Drinking hydrogen-rich water may protect healthy individuals from gastric damage caused by oxidative stress.
Collapse
|
26
|
Kinjo T, Ye J, Yan H, Hamasaki T, Nakanishi H, Toh K, Nakamichi N, Kabayama S, Teruya K, Shirahata S. Suppressive effects of electrochemically reduced water on matrix metalloproteinase-2 activities and in vitro invasion of human fibrosarcoma HT1080 cells. Cytotechnology 2012; 64:357-71. [PMID: 22695858 DOI: 10.1007/s10616-012-9469-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 05/21/2012] [Indexed: 02/06/2023] Open
Abstract
It has been demonstrated that hydrogen peroxide (H(2)O(2)) is directly associated with elevated matrix metalloproteinase-2 (MMP-2) expression in several cell lines. Electrochemically reduced water (ERW), produced near the cathode during electrolysis, and scavenges intracellular H(2)O(2) in human fibrosarcoma HT1080 cells. RT-PCR and zymography analyses revealed that when HT1080 cells were treated with ERW, the gene expression of MMP-2 and membrane type 1 MMP and activation of MMP-2 was repressed, resulting in decreased invasion of the cells into matrigel. ERW also inhibited H(2)O(2)-induced MMP-2 upregulation. To investigate signal transduction involved in MMP-2 downregulation, mitogen-activated protein kinase (MAPK)-specific inhibitors, SB203580 (p38 MAPK inhibitor), PD98059 (MAPK/extracellular regulated kinase kinase 1 inhibitor) and c-Jun NH(2)-terminal kinase inhibitor II, were used to block the MAPK signal cascade. MMP-2 gene expression was only inhibited by SB203580 treatment, suggesting a pivotal role of p38 MAPK in regulation of MMP-2 gene expression. Western blot analysis showed that ERW downregulated the phosphorylation of p38 both in H(2)O(2)-treated and untreated HT1080 cells. These results indicate that the inhibitory effect of ERW on tumor invasion is due to, at least in part, its antioxidative effect.
Collapse
Affiliation(s)
- Tomoya Kinjo
- Division of Life Engineering, Graduate School of Systems Life Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Molecular hydrogen as an emerging therapeutic medical gas for neurodegenerative and other diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2012; 2012:353152. [PMID: 22720117 PMCID: PMC3377272 DOI: 10.1155/2012/353152] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 03/24/2012] [Accepted: 04/13/2012] [Indexed: 12/24/2022]
Abstract
Effects of molecular hydrogen on various diseases have been documented for 63 disease models and human diseases in the past four and a half years. Most studies have been performed on rodents including two models of Parkinson's disease and three models of Alzheimer's disease. Prominent effects are observed especially in oxidative stress-mediated diseases including neonatal cerebral hypoxia; Parkinson's disease; ischemia/reperfusion of spinal cord, heart, lung, liver, kidney, and intestine; transplantation of lung, heart, kidney, and intestine. Six human diseases have been studied to date: diabetes mellitus type 2, metabolic syndrome, hemodialysis, inflammatory and mitochondrial myopathies, brain stem infarction, and radiation-induced adverse effects. Two enigmas, however, remain to be solved. First, no dose-response effect is observed. Rodents and humans are able to take a small amount of hydrogen by drinking hydrogen-rich water, but marked effects are observed. Second, intestinal bacteria in humans and rodents produce a large amount of hydrogen, but an addition of a small amount of hydrogen exhibits marked effects. Further studies are required to elucidate molecular bases of prominent hydrogen effects and to determine the optimal frequency, amount, and method of hydrogen administration for each human disease.
Collapse
|
28
|
|
29
|
Rheem KE, Lim YR, Lee BS, Lee SK, Seong KM, Hyun DH, Min KJ. Does alkaline-reduced hexagonal water delay the aging process in Drosophila? Geriatr Gerontol Int 2012; 12:151-4. [DOI: 10.1111/j.1447-0594.2011.00713.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
30
|
Li Y, Hamasaki T, Teruya K, Nakamichi N, Gadek Z, Kashiwagi T, Yan H, Kinjo T, Komatsu T, Ishii Y, Shirahata S. Suppressive effects of natural reduced waters on alloxan-induced apoptosis and type 1 diabetes mellitus. Cytotechnology 2011; 64:281-97. [PMID: 22143345 PMCID: PMC3386384 DOI: 10.1007/s10616-011-9414-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Accepted: 11/18/2011] [Indexed: 11/29/2022] Open
Abstract
Insulin-producing cells express limited activities of anti-oxidative enzymes. Therefore, reactive oxygen species (ROS) produced in these cells play a crucial role in cytotoxic effects. Furthermore, diabetes mellitus (DM) development is closely linked to higher ROS levels in insulin-producing cells. Hita Tenryosui Water® (Hita T. W., Hita, Japan) and Nordenau water (Nord. W., Nordenau, Germany), referred to as natural reduced waters (NRWs), scavenge ROS in cultured cells, and therefore, might be a possibility as an alternative to conventional pharmacological agents against DM. Therefore, this study aimed to investigate the role of NRWs in alloxan (ALX)-induced β-cell apoptosis as well as in ALX-induced diabetic mice. NRWs equally suppressed DNA fragmentation levels. Hita T. W. and Nord. W. ameliorated ALX-induced sub-G1 phase production from approximately 40% of control levels to 8.5 and 11.8%, respectively. NRWs restored serum insulin levels (p < 0.01) and reduced blood glucose levels (p < 0.01) in ALX-induced mice. Hita T. W. restored tissue superoxide dismutase (SOD) (p < 0.05) activity but not tissue catalase activity. Hita T. W. did not elevate SOD or catalase activity in HIT-T15 cells. Nord. W. restored SOD (p < 0.05) and catalase (p < 0.05) activity in both cultured cells and pancreatic tissue to normal levels. Even though variable efficacies were observed between Hita T. W. and Nord. W., both waters suppressed ALX-induced DM development in CD-1 male mice by administering NRWs for 8 weeks. Our results suggest that Hita T. W. and Nord. W. protect against ALX-induced β-cell apoptosis, and prevent the development of ALX-induced DM in experimental animals by regulating ALX-derived ROS generation and elevating anti-oxidative enzymes. Therefore, the two NRWs tested here are promising candidates for the prevention of DM development.
Collapse
Affiliation(s)
- Yuping Li
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Shirahata S, Hamasaki T, Haramaki K, Nakamura T, Abe M, Yan H, Kinjo T, Nakamichi N, Kabayama S, Teruya K. Anti-diabetes effect of water containing hydrogen molecule and Pt nanoparticles. BMC Proc 2011; 5 Suppl 8:P18. [PMID: 22373056 PMCID: PMC3284969 DOI: 10.1186/1753-6561-5-s8-p18] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Sanetaka Shirahata
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan ; Division of Life Engineering, Graduate School of Systems Life Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Takeki Hamasaki
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Keisuke Haramaki
- Division of Life Engineering, Graduate School of Systems Life Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Takuro Nakamura
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Masumi Abe
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hanxu Yan
- Division of Life Engineering, Graduate School of Systems Life Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Tomoya Kinjo
- Division of Life Engineering, Graduate School of Systems Life Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Noboru Nakamichi
- Nihon Trim Co. Ltd., 1-8-34 Oyodonaka, Kita-ku, Osaka 531-0076, Japan
| | - Shigeru Kabayama
- Nihon Trim Co. Ltd., 1-8-34 Oyodonaka, Kita-ku, Osaka 531-0076, Japan
| | - Kiichiro Teruya
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan ; Division of Life Engineering, Graduate School of Systems Life Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| |
Collapse
|
32
|
Mechanism of the lifespan extension of Caenorhabditis elegans by electrolyzed reduced water--participation of Pt nanoparticles. Biosci Biotechnol Biochem 2011; 75:1295-9. [PMID: 21737933 DOI: 10.1271/bbb.110072] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Electrolyzed reduced water (ERW) contains a large amount of molecular hydrogen and a small amount of Pt nanoparticles (Pt NPs). We have found that ERW significantly extended the lifespan of Caenorhabditis elegans in a novel culture medium designated Water Medium. In this study, we found that synthetic Pt NPs at ppb levels significantly extended the nematode lifespan and scavenged reactive oxygen species (ROS) in the nematode induced by paraquat treatment. In contrast, a high concentration of dissolved molecular hydrogen had no significant effect on the lifespan of the nematode. These findings suggest that the Pt NPs in ERW, rather than the molecular hydrogen, extend the longevity of the nematode, at least partly by scavenging ROS.
Collapse
|