Animal StudyHighlighted
MHID-8967574PMID: 416411602026Frontiers in Nutrition
Eika Mizuno, Tatsuhiro Sato, Kosuke Okada, Ikuru Miura, Junichi Shoda, Makoto Saito, et al.
Introduction: Hydrogen-rich water (HRW) has been reported to reduce oxidative stress, suppress exercise fatigue, and enhance recovery. However, the molecular mechanisms of its effects on exercise capacity, especially during the early stages of adaptation in physically inactive individuals, remain unclear.
Methods: Male 8-week-old C57BL/6 J mice were provided with purified water or HRW for 1, 2, 4,
Observational StudyHighlighted
MHID-67657942026medRxiv
Yuusuke Harada, Michiko Miyakawa
Background: Falls among older adults are a leading cause of fractures, loss of independence, and need for long-term care. Community salons in Japan promote social participation and health activities among older adults. Hydrogen-rich water is widely used as a health product, but evidence in community settings remains limited.
Methods: We conducted a prospective observational study among 48 communit
Animal StudyHighlighted
MHID-6449583PMID: 412075402026Journal of Nutritional Biochemistry
Naomi Kamimura, Katsuya Iuchi, Tsutomu Igarashi, Ikuroh Ohsawa, Chikako Nito, Jitsuo Usuda, et al.
Acetaminophen (APAP) overdose induces severe liver injury, especially in diabetic patients. N -acetylcysteine (NAC) is commonly used as an approved an- tidote for APAP toxicity; however, its narrow therapeutic window limits its clinical utility. This study investigated the protective effects of molecular hydro- gen (H2 ) against APAP-induced hepatotoxicity in diabetic mice. Diabetic db/db mice wer
Clinical TrialHighlighted
MHID-96660182025Journal of Physical Education and Sport
Jakub Krejčí, Michal Botek, Shigeo Ohta, Klara Botkova, Andrew McKune
Problem Statement: Effective inter-match recovery plays a crucial role in preserving performance and preventing injuries in well-trained soccer players. In this context, molecular hydrogen has attracted increasing attention in sports science due to its selective antioxidative, anti-inflammatory, and cell-signaling properties that may facilitate recovery. Among the various administration methods, h
Observational StudyHighlighted
MHID-2151796PMID: 399341432025Scientific Reports
Masaaki Nakayama, Kimio Watanabe, Emiko Sato, Yugo Ito, Nozomi Kadota, Kasumi Konishi, et al.
Hemodialysis employing molecular hydrogen (H2)-enriched dialysis solution rendered by water electrolysis (E-HD), has been reported to alleviate dialysis-related fatigue, but its association with metabolic profiles remains unclear. Eighty-one patients undergoing standard HD were classified into 3 groups [Group A (n = 25, 30.9%): fatigue with activity reduction—subgroups A1: chronic persistent fatig
Clinical TrialHighlighted
MHID-8924760PMID: 408680532025Biomedicines
Takafumi Maruyama, Dai Ishikawa, Rina Kurokawa, Hiroaki Masuoka, Kei Nomura, Mayuko Haraikawa, et al.
Background/Objective: Dysbiosis is implicated in the pathogenesis of ulcerative colitis. Hydrogen has been reported to promote intestinal microbiota diversity and suppress ulcerative colitis progression in mice models. In this study, we investigated changes in the intestinal microbiota, therapeutic effects, and safety of hydrogen inhalation in patients with ulcerative colitis.
Methods: In this ra
Animal StudyHighlighted
MHID-5834617PMID: 398578172025Biomedicines
Masaki Shibuya, Masafumi Fujinaka, Mako Yonezawa, Natsumi Nishimura, Hitoshi Uchinoumi, Hiroshi Sunahara, et al.
Background: Hydrogen gas (H2) has been shown to be effective in the treatment of various clinical conditions, from acute illnesses to chronic illnesses. However, its clinical indications and the corresponding appropriate hydrogen delivery methods have yet to be determined. This is due to the fact that the pharmacokinetics and pharmacodynamics of hydrogen in each delivery method have not been exper
Animal StudyIn VitroHighlighted
MHID-8939519PMID: 413302172025Redox Biology
Shuto Negishi, Mikako Ito, Tomoya Hasegawa, Hikaru Otake, Bisei Ohkawara, Akio Masuda, et al.
The mechanisms underlying the biomedical effects of molecular hydrogen (H2) remain poorly understood and
are often attributed to its selective reduction of hydroxyl radicals, based on the long-held notion that H2 is
biologically inert. We demonstrate that H2 is biologically active, specifically targeting the Rieske iron-sulfur
protein (RISP). We first observed that H2 induces the mitochondrial unf
MHID-46528842024Molecular Hydrogen in Health and Disease
Shigeo Ohta
Molecular hydrogen (H2) has emerged as a promising therapeutic and preventive medical gas. In 2007, we overturned the conventional concept that H2 had no effect on mammalian cells, leading to the emergence of the field of “hydrogen medicine and biology”. H2 has numerous advantages, including high efficacy, lack of adverse effects, and multiple functions, such as anti-oxidation, anti-inflammation,
Literature ReviewHighlighted
MHID-44233202024Molecular Hydrogen in Health and Disease, Advances in Biochemistry in Health and Disease
Shin-ichi Hirano, Yusuke Ichikawa, Bunpei Sato, Yoshiyasu Takefuji, Xiao-Kang Li, Fumitake Satoh
Mitochondria originated from aerobic bacteria in endosymbiosis. Through this symbiosis, eukaryotes acquired an efficient energy-producing system, but at the cost of exposure to oxidative stress from reactive oxygen species (ROS). Molecular hydrogen (H2) was recently identified as an antioxidant that selectively reduces ROS, such as hydroxyl radicals and peroxynitrite, which are strong oxidants, and
Human StudyHighlighted
MHID-3244978PMID: 396343822024Acute Medicine & Surgery
Masato Tsuchikane, Takeshi Yamagiwa, Tadaaki Takada, Shinjiro Wakai, Sadaki Inokuchi
A 62-year-old woman was diagnosed with postoperative breast cancer recurrence. While inhaling hydrogen gas through a nasal cannula at home, she used a heat-therapy machine that emitted electromagnetic waves to the breast cancer site. She suddenly experienced explosive sounds in her chest and smelled burning. Subsequently, she experienced several overlapping hemoptysis episodes and was referred to
Observational Study
MHID-3841687PMID: 379295122024Medical Gas Research
Shin-ichi Hirano, Yusuke Ichikawa, Bunpei Sato, Yoshiyasu Takefuji, Fumitake Satoh
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is characterized by unexplained fatigue and malaise that persist for more than 6 months with neuropsychiatric symptoms, including slight fever, headache, weakness, impaired thinking, and depression. The onset and severity of these symptoms vary and reduce the quality of life as well as social, occupational, and personal activities of thos
Literature ReviewHighlighted
MHID-0274938PMID: 385398462024Antioxidants
Di Hu, Shigeru Kabayama, Yasuyoshi Watanabe, Yilong Cui
Molecular hydrogen, the smallest and lightest molecule, serves as an intense reducing agent. Its distinct characteristics, including minimal size and neutral charge, enhance bioavailability and facilitate significant biological effects. Previously considered physiologically inert, hydrogen has gained recognition as a powerful therapeutic agent, known for its antioxidative and anti-inflammatory pro
In VitroHighlighted
MHID-5509595PMID: 392466992024Regenerative Therapy
Koji Kimura, Yasuhiko Tabata
The objective of this study is to evaluate the effect of hydrogen gas on the biological functions of human adipose-derived stem cells (hADSC) in cryopreservation. hADSC were cryopreserved by a commercial cell preservation solution in the presence of hydrogen gas. After cryopreservation at 80 C, the viability, initial attachment morphology, and biological parameters of cells cryopreserved were eval
Clinical TrialHighlighted
MHID-6306651PMID: 394936772024OncoTargets and Therapy
Imjai Chitapanarux, Wimrak Onchan, Somvilai Chakrabandhu, Pooriwat Muangwong, Narongchai Autsavapromporn, Tapanut Ariyanon, et al.
Hydrogen (H2) gas inhalation might alleviate acute radiotherapy toxicities by scavenging free radicals produced by ionizing radiation and anti-inflammatory properties. This study aimed to investigate the feasibility and safety of H2 gas inhalation during concurrent chemoradiotherapy (CCRT) in patients with locally advanced head and neck cancer (LAHNC).
Patients and Methods: We designed a pilot pro
Clinical TrialHighlighted
MHID-3345925PMID: 391330682024Critical Care Medicine
Tomoyoshi Tamura, MD, Hiromichi Narumiya, MD, Koichiro Homma, MD, Masaru Suzuki, MD
OBJECTIVE: The Efficacy of Inhaled Hydrogen on Neurologic Outcome Following Brain Ischemia During Post-Cardiac Arrest Care (HYBRID) II trial (jRCTs031180352) suggested that hydrogen inhalation may reduce post-cardiac arrest brain injury (PCABI). However, the combination of hypothermic target temperature management (TTM) and hydrogen inhalation on outcomes is unclear. The aim of this study was to i
Other
MHID-1413948PMID: 390733352024Medical Gas Research
Yusuke Ichikawa, Bunpei Sato, Shin-ichi Hirano, Yoshiyasu Takefuji, Fumitake Satoh
The Michael J. Fox Foundation has been funding research on Parkinson’s disease for 35 years, but has yet to find a cure. This is due to a problem with the philosophy behind the development of modern medical treatments. In this paper, we will introduce “smart medicine” with a substance that can solve all the problems of central nervous system drugs. The substance is the smallest diatomic molecule,
Clinical TrialHighlighted
MHID-2861044PMID: 383977432024Antioxidants
Reiko Moribe, Marina Minami, Ryoji Hirota, Naw Awn J-P, Shigeru Kabayama, Masamitsu Eitoku, et al.
We studied the effect of three months’ use of electrolyzed hydrogen water (EHW, Elec-
trolyzed Hydrogen Water conditioner produced by Nihon Trim Co., Ltd.) on metabolic and pre-
metabolic syndrome groups. This research was carried out jointly by Susaki City; Nihon Trim Co.,
Ltd.; and Kochi University as part of a local revitalization project with health as a keyword. A ran-
domized, placebo-contro
Animal StudyHighlighted
MHID-3103887PMID: 394463622024Translational Vision Science & Technology
Ruri Sugiyama, Junya Hanaguri, Harumasa Yokota, Akifumi Kushiyama, Sakura Kushiyama, Takako Kikuchi, et al.
Purpose: To examine the effects of hydrogen water on retinal blood flow (RBF) dysregulation in diabetes, we evaluated changes in RBF in response to flicker stimulation and systemic hyperoxia in diabetic mice.
Methods: Twelve type 2 diabetic mice were divided into a group that received non-hydrogen water (n = 6, control group) and the other that received hydrogen-rich water (0.6–0.8 mM) (n = 6, HR
Animal StudyHighlighted
MHID-9892485PMID: 388393612024Biological and Pharmaceutical Bulletin
Risako Morishita, Ayaka Onishi, Maresuke Oya, Hirotsugu Karashima, Misato Mori, Yuka Kawatani, et al.
Ultrafine bubbles (UFBs), which are bubbles with diameters of less than 1 µm, are widely recognized for their ability to exist stably in liquid as a result of the effects of Brownian motion. In this study, we focused on hydrogen, known for its antioxidant potential, and explored the function of H2-filled UFBs, which encapsulate hydrogen, to determine their potential use as oral carriers for the de
