Animal StudyHighlighted
MHID-5889693PMID: 257075802015Molecular and Cellular Biochemistry
Sayaka Sobue, Kazuaki Yamai, Mikako Ito, Kinji Ohno, Masafumi Ito, Takashi Iwamoto, et al.
Molecular hydrogen (H2) is an agent with po- tential applications in oxidative stress-related and/or in- flammatory disorders. H2 is usually administered by inhaling H2-containing air (HCA) or by oral intake of H2- rich water (HRW). Despite mounting evidence, the mole- cular mechanism underlying the therapeutic effects and the optimal method of H2 administration remain unclear. Here, we investigate
Literature Review
MHID-0477754PMID: 247690812014Pharmacology & Therapeutics
Shigeo Ohta
Molecular hydrogen (H2) has been accepted to be an inert and nonfunctional molecule in our body. We have turned this concept by demonstrating that H2 reacts with strong oxidants such as hydroxyl radical in cells, and proposed its potential for preventive and therapeutic applications. H2 has a number of advantages exhibiting extensive effects: H2 rapidly diffuses into tissues and cells, and it is m
Literature ReviewHighlighted
MHID-8734083PMID: 342834352014Journal of Neurological Disorders
Mami Noda, Kyota Fujita, Ikuroh Ohsawa, Masafumi Ito, Kinji Ohno
Molecular hydrogen (H2) has been reported to be effective for a variety of disorders and its effect has been
ascribed to a selective scavenge of hydroxyl radicals (•OH) at the beginning. Consumption of H2 was either by
inhalation, drinking H2-containing water (H2 water), or infusion of H2-containing saline. Among various disorders,
animal model of ischemic injury and Parkinson’s disease showed sig
Animal StudyHighlighted
MHID-4606624PMID: 245091622014Free Radical Biology and Medicine
Yukio Mano, Tomomi Kotani, Mikako Ito, Taku Nagai, Yuko Ichinohashi, Kiyofumi Yamada, et al.
Molecular hydrogen (H2) scavenges hydroxyl radicals. Recently, H2 has been reported to prevent a variety of diseases associated with oxidative stress in model systems and in humans. Here, we studied the effects of H2 on rat fetal hippocampal damage caused by ischemia and reperfusion (IR) on day 16 of pregnancy with the transient occlusion of the bilateral utero-ovarian arteries. Starting 2 days be
Literature ReviewAnimal StudyIn VitroHighlighted
MHID-45285932014European Journal of Neurodegenerative Diseases
Mami Noda, M. Ito, I. Ohsawa, K. Ohno
A new medical gas, molecular hydrogen (H2), has been reported to be effective for a variety of disorders and clinical trials have shown promising results. Though the precise mechanism is still unknown, it is obvious that H2 has multiple effects. The first prominent effect of H2 was as antioxidant or reactive oxygen species (ROS)-scavenger, though it blocks only hydroxyl radicals (•OH), which are t
Animal StudyHighlighted
MHID-61354972014Scientific Reports
Chi Liu, Ryosuke Kurokawa, Masayuki Fujino, Shinichi Hirano, Bunpei Sato, Xiao-Kang Li
Hydrogen exerts beneficial effects in disease animal models of ischemia-reperfusion injury as well as inflammatory and neurological disease. Additionally, molecular hydrogen is useful for various novel medical and therapeutic applications in the clinical setting. In the present study, the hydrogen concentration in rat blood and tissue was estimated. Wistar rats were orally administered hydrogen su
Animal Study
MHID-1154767PMID: 249410012014PLoS ONE
Masanori Kawaguchi, Yasushi Satoh, Yukiko Otsubo, Tomiei Kazama
Neuropathic pain remains intractable and the development of new therapeutic strategies are urgently required. Accumulating evidence indicates that overproduction of oxidative stress is a key event in the pathogenesis of neuropathic pain. However, repeated intra-peritoneal or intrathecal injections of antioxidants are unsuitable for continuous use in therapy. Here we show a novel therapeutic method
Animal Study
MHID-0185761PMID: 252512202014PLoS ONE
Kenji Dohi, Brian C. Kraemer, Michelle A. Erickson, Pamela J. McMillan, Andrej Kovac, Zuzana Flachbartova, et al.
Traumatic brain injury (TBI) in its various forms has emerged as a major problem for modern society. Acute TBI can transform into a chronic condition and be a risk factor for neurodegenerative diseases such as Alzheimer’s and Parkinson’s diseases, probably through induction of oxidative stress and neuroinflammation. Here, we examined the ability of the antioxidant molecular hydrogen given in drink
Animal StudyHighlighted
MHID-1568601PMID: 242536162013Scientific Reports
Akio Matsumoto, Megumi Yamafuji, Tomoko Tachibana, Yusaku Nakabeppu, Mami Noda, Haruaki Nakaya
The therapeutic potential of molecular hydrogen (H2) is emerging in a number of human diseases and in their animal models, including in particular Parkinson’s disease (PD). H2 supplementation of drinking water has been shown to exert disease-modifying effects in PD patients and neuroprotective effects in experimental PD model mice. However, H2 supplementation does not result in detectable changes
Animal StudyHighlighted
MHID-1417416PMID: 234757672013American Journal of Physiology - Lung Cellular and Molecular Physiology
Tomohiro Kawamura, Nobunao Wakabayashi, Norihisa Shigemura, Chien-Sheng Huang, Kosuke Masutani, Yugo Tanaka, et al.
Hyperoxic lung injury is a major concern in critically ill patients who receive high concentrations of oxygen to treat lung diseases. Successful abrogation of hyperoxic lung injury would have a huge impact on respiratory and critical care medicine. Hydrogen can be administered as a therapeutic medical gas. We recently demonstrated that inhaled hydrogen reduced transplant-induced lung injury and in
In VitroHighlighted
MHID-9934004PMID: 234482062013Medical Gas Research
Akio Iio, Mikako Ito, Tomohiro Itoh, Riyako Terazawa, Yasunori Fujita, Yoshinori Nozawa, et al.
Background: There is accumulating evidence that obesity is closely associated with an impaired free fatty acid metabolism as well as with insulin resistance and inflammation. Excessive fatty acid uptake mediated by fatty acid translocase CD36 plays an important role in hepatic steatosis. Molecular hydrogen has been shown to attenuate oxidative stress and improve lipid, glucose and energy metabolis
Literature Review
MHID-2828070PMID: 238595552013Current Pharmaceutical Design
Toru Ishibashi
Rheumatoid arthritis (RA) is a chronic inflammatory disease in which the progressive destruction of joint causes morbidity. It is also associated with an increased risk of atherosclerosis, which can result in cardiovascular disease and mortality. The therapeutic goal is to control the systemic inflammation to obtain not only the remission of symptoms, but also improve general state of health. Alth
Literature Review
MHID-8352354PMID: 216215882012Biochimica et Biophysica Acta
Shigeo Ohta
Background: Mitochondria are the major source of oxidative stress. Acute oxidative stress causes serious damage to tissues, and persistent oxidative stress is one of the causes of many common diseases, cancer and the aging process; however, there has been little success in developing an effective antioxidant with no side effect. We have reported that molecular hydrogen has potential as an effectiv
Animal StudyIn VitroHighlighted
MHID-7737580PMID: 231402242012Transplant International
Kentaro Noda, Yugo Tanaka, Norihisa Shigemura, Tomohiro Kawamura, Yinna Wang, Kosuke Masutani, et al.
Recent evidence suggests that molecular hydrogen has therapeutic value for dis-
ease states that involve inflammation. We hypothesized that drinking hydro-
gen-rich water (HW) daily would protect cardiac and aortic allograft recipients
from inflammation-associated deterioration. Heterotopic heart transplantation
with short-course tacrolimus immunosuppression and orthotopic aortic trans-
plantation w
Animal StudyHighlighted
MHID-09896642012Biochemical and Biophysical Research Communications
Yugo Tanaka, Norihisa Shigemura, Tomohiro Kawamura, Kentaro Noda, Kumiko Isse, Donna Beer Stolz, et al.
Background—We previously demonstrated that donor treatment with inhaled hydrogen protects lung grafts from cold ischemia/reperfusion (I/R) injury during lung transplantation. To elucidate the mechanisms underlying hydrogen’s protective effects, we conducted a gene array analysis to identify changes in gene expression associated with hydrogen treatment.
Methods—Donor rats were exposed to mechanica
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
Observational StudyHighlighted
MHID-0466448PMID: 229167062012Medical Gas Research
Hirohisa Ono, Yoji Nishijima, Naoto Adachi, Masaki Sakamoto, Yohei Kudo, Kumi Kaneko, et al.
Background: In animal experiments, use of molecular hydrogen ( H2) has been regarded as quite safe and effective, showing benefits in multiple pathological conditions such as ischemia-reperfusion injury of the brain, heart, kidney and transplanted tissues, traumatic and surgical injury of the brain and spinal cord, inflammation of intestine and lung, degenerative striatonigral tissue and also in m
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
