Literature Review
MHID-7641248PMID: 296834802018Federation of European Biochemical Societies (FEBS) Letters
Phillip B. Hylemon, Spencer C. Harris, Jason M. Ridlon
The human gut microbiome refers to a highly diverse microbial ecosystem, which has a symbiotic relationship with the host. Molecular hydrogen (H2) and carbon dioxide (CO2) are generated by fermentative metabolism in anaerobic ecosystems. H2 generation and oxidation coupled to CO2 reduction to methane or acetate help maintain the structure of the gut microbiome. Bile acids are synthesized by hepato
Literature Review
MHID-31863052018Asia-Pacific Journal of Blood Types and Genes
Jinqi Li, Yan Zang, Haihui Gu, Baohua Qian
Hydrogen (H2) is a colorless, odorless gas that can act as a reducing agent under certain circumstances. Previously considered physiologically an inert and nonfunctional molecule in mammalian cells, H2 largely went ignored until Nature Medicine revealed the antioxidant and cytoprotective effects of hydrogen gas in a focal stroke model. Reactive oxygen species (ROS) is generated inside the body thr
Clinical Trial
MHID-9222881PMID: 294974852018Medical Gas Research
Kei Mizuno, Akihiro T. Sasaki, Kyoko Ebisu, Kanako Tajima, Osami Kajimoto, Junzo Nojima, et al.
Health and a vibrant life are sought by everyone. To improve quality of life (QOL), maintain a healthy state, and prevent various diseases, evaluations of the effects of potentially QOL-increasing factors are important. Chronic oxidative stress and inflammation cause deteriora- tions in central nervous system function, leading to low QOL. In healthy individuals, aging, job stress, and cognitive lo
Clinical TrialHighlighted
MHID-6786572PMID: 307136692018Medical Gas Research
Yoshinori Tanaka, Yasuhiro Saihara, Kyoko Izumotani, Hajime Nakamura
In Japan, alkaline electrolyzed water (AEW) apparatus have been approved as a medical device. And for the patients with gastrointestinal symptoms, drinking AEW has been found to be effective in relieving gastrointestinal symptoms. But some users of AEW apparatus do not have abdominal indefinite complaint. Little attention has been given to the benefit for the users which have no abdominal indefini
Clinical TrialAnimal StudyHighlighted
MHID-5385411PMID: 291106152018Current Alzheimer Research
Kiyomi Nishimaki, Takashi Asada, Ikuroh Ohsawa, Etsuko Nakajima, Chiaki Ikejima, Takashi Yokota, et al.
Background: Oxidative stress is one of the causative factors in the pathogenesis of neurodegenerative diseases including mild cognitive impairment (MCI) and dementia. We previously reported that molecular hydrogen (H2) acts as a therapeutic and preventive antioxidant.
Objective: We assess the effects of drinking H2-water (water infused with H2) on oxidative stress model mice and subjects with MCI
Literature ReviewHighlighted
MHID-7292601PMID: 287518022017Journal of Clinical Biochemistry and Nutrition
Kenji Dohi, Kazue Satoh, Kazuyuki Miyamoto, Shusuke Momma, Kenichiro Fukuda, Ryo Higuchi, et al.
Oxidative stress caused by reactive oxygen species is considered a major mediator of tissue and cell injuries in various neuronal conditions, including neurological emergencies and neurodegenerative diseases. Molecular hydrogen is well characterized as a scavenger of hydroxyl radicals and peroxynitrite. Recently, the neuroprotective effects of treatment with molecular hydrogen have been reported i
Literature Review
MHID-3874815PMID: 292542782017Oncotarget
Li Ge, Ming Yang, Na-Na Yang, Xin-Xin Yin, Wen-Gang Song
Since the 2007 discovery that molecular hydrogen (H2) has selective antioxidant properties, multiple studies have shown that H2 has beneficial effects in diverse animal models and human disease. This review discusses H2 biological effects and potential mechanisms of action in various diseases, including metabolic syndrome, organ injury, and cancer; describes effective H2 delivery approaches; and s
Observational StudyHighlighted
MHID-9655362PMID: 289029002017PLoS ONE
Masaaki Nakayama, Noritomo Itami, Hodaka Suzuki, Hiromi Hamada, Naoyuki Osaka, Ryo Yamamoto, et al.
Background and aim: It is supposed that enhanced oxidative stress and inflammation are involved with the poor clinical outcomes in patients on chronic dialysis treatment. Recent studies have shown that molecular hydrogen (H2) is biologically active as an anti-inflammatory agent. Thus, we developed a novel hemodialysis (E-HD) system which delivers H2 (30 to 80 ppb)-enriched dialysis solution, to co
Clinical TrialHighlighted
MHID-7076048PMID: 283210092017Circulation Journal
Yoshinori Katsumata, Koichiro Homma, Masaru Suzuki, Shigeo Okuda
Background: Hydrogen gas inhalation (HI) reduced infarct size and mitigated adverse left ventricular (LV) remodeling in a rat model of acute myocardial infarction (AMI). We designed a prospective, open-label, rater-blinded clinical pilot study in patients experiencing ST-elevated MI (STEMI).
Methods and results: The 20 patients with an initial diagnosis of STEMI were assigned to either an HI grou
Literature Review
MHID-9316740PMID: 272811762017Current Neuropharmacology
Masumi Iketani, Ikuroh Ohsawa
Oxidative stress and neuroinflammation cause many neurological disorders. Recently, it has been reported that molecular hydrogen (H2) functions as an antioxidant and anti-inflammatory agent. The routes of H2 administration in animal model and human clinical studies are roughly classified into three types, inhalation of H2 gas, drinking H2-dissolved water, and injection of H2-dissolved saline. This
Clinical TrialHighlighted
MHID-1221967PMID: 267838402015Antioxidants
Tetsuji Azuma, Mayu Yamane, Daisuke Ekuni, Yuya Kawabata, Kota Kataoka, Kenta Kasuyama, et al.
Oxidative stress is involved in the pathogenesis of periodontitis. A reduction of oxidative stress by drinking hydrogen-rich water (HW) might be beneficial to periodontal health. In this pilot study, we compared the effects of non-surgical periodontal treatment with or without drinking HW on periodontitis. Thirteen patients (3 women, 10 men) with periodontitis were divided into two groups: The con
Literature ReviewHighlighted
MHID-7479916PMID: 264839532015Medical Gas Research
Masatoshi Ichihara, Sayaka Sobue, Mikako Ito, Masafumi Ito, Masaaki Hirayama, Kinji Ohno
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. I
Literature ReviewHighlighted
MHID-2487803PMID: 306788962013International Journal of Biological Sciences
Liren Qian, Jianliang Shen, Yunhai Chuai, Jianming Cai
It is well known that most of the ionizing radiation-induced damage is caused by hydroxyl radicals (·OH) follows radiolysis of H2O. Molecular hydrogen (H2) has antioxidant activities by selectively reducing ·OH and peroxynitrite(ONOO-). We firstly hypothesized and demonstrated the ra-dioprotective effect of H2 in vitro and in vivo, which was also repeated on different experimental animal models by
Clinical TrialAnimal StudyHighlighted
MHID-5560534PMID: 236101592013Journal of Lipid Research
Guohua Song, Min Li, Hui Sang, Liying Zhang, Xiuhong Li, Shutong Yao, et al.
We have found that hydrogen (dihydrogen; H 2 ) has benefi cial lipid-lowering effects in high-fat diet-fed Syrian golden hamsters. The objective of this study was to characterize the effects of H 2 -rich water (0.9–1.0 l/day) on the content, composition, and biological activities of serum lipoproteins on 20 patients with potential metabolic syn- drome. Serum analysis showed that consumption of H 2
Animal StudyIn VitroObservational StudyHighlighted
MHID-5280800PMID: 226080092012Medical Gas Research
Mikako Ito, Masaaki Hirayama, Kazuaki Yamai, Sae Goto, Masafumi Ito, Masatoshi Ichihara, et al.
Background: Lactulose is a synthetic disaccharide that can be catalyzed only by intestinal bacteria in humans and rodents, and a large amount of hydrogen is produced by bacterial catalysis of lactulose. We previously reported marked effects of ad libitum administration of hydrogen water on prevention of a rat model of Parkinson’s disease (PD).
Methods: End-alveolar breath hydrogen concentrations
Literature Review
MHID-5039793PMID: 227201172012Oxidative Medicine and Cellular Longevity
Kinji Ohno, Mikako Ito, Masatoshi Ichihara, Masafumi Ito
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
Clinical TrialObservational Study
MHID-7186474PMID: 230310792012Medical Gas Research
Toru Ishibashi, Bunpei Sato, Mariko Rikitake, Tomoki Seo, Ryosuke Kurokawa, Yuichi Hara, et al.
Background: Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by the destruction of bone and cartilage. Although its etiology is unknown, the hydroxyl radical has been suggested to be involved in the pathogenesis of RA. Recently, molecular hydrogen (H2) was demonstrated to be a selective scavenger for the hydroxyl radical. Also, the method to prepare water containing extrem
Clinical Trial
MHID-3851590PMID: 225208312012Medical Gas Research
Kosuke Aoki, Atsunori Nakao, Takako Adachi, Yasushi Matsui, Shumpei Miyakawa
Background: Muscle contraction during short intervals of intense exercise causes oxidative stress, which can play a role in the development of overtraining symptoms, including increased fatigue, resulting in muscle microinjury or inflammation. Recently it has been said that hydrogen can function as antioxidant, so we investigated the effect of hydrogen-rich water (HW) on oxidative stress and muscl
HypothesisHighlighted
MHID-49572952011Medical Science Monitor
Yunhai Chuai, Luqian Zhao, Jin Ni, Ding Sun, Jianguo Cui, Bailong Li, et al.
Radiotherapy is an important modality of cancer treatment. Radiation pneumonitis is a major obstacle to increasing the radiation dose in radiotherapy, and it is important to prevent this radiation-induced complication. Recent studies show that hydrogen has a potential as an effective and safe radioprotective agent by selectively reducing hydroxyl and peroxynitrite radicals. Since most of the ioniz
Human StudyLiterature ReviewAnimal StudyIn VitroHighlighted
MHID-1756030PMID: 221460822011Medical Gas Research
Shigeo Ohta, Atsunori Nakao, Kinji Ohno
This report summarizes a brief description/history of the Hydrogen Research Meetings as well as key presentations/oral abstracts delivered in the most recent symposium. Additionally, we introduced 38 diseases and physiological states for which hydrogen exhibits beneficial effects.
