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Clinical TrialHighlighted

Hydrogen-rich water and caffeine for alertness and brain metabolism in sleep-deprived habitual coffee drinkers

MHID-9740359PMID: 345320232021Food Science & Nutrition

Nikola Todorovic, Dragana Zanini, Valdemar Stajer, Darinka Korovljev, Jelena Ostojic, Sergej M Ostojic

The main aim of this randomized-controlled cross-over interventional trial was to assess the acute effects of taking a single dose of hydrogen-rich water (HRW), and compare it with caffeine, HRW plus caffeine, and control water, for alertness, brain metabolism, brain and oxygen saturation, and self-reported adverse events in healthy men and women who were habitual coffee drinkers and were sleep-de

Literature Review

Hydrogen, a Novel Therapeutic Molecule, Regulates Oxidative Stress, Inflammation, and Apoptosis

MHID-5326803PMID: 349874192021Frontiers in Physiology

Yan Tian, Yafang Zhang, Yu Wang, Yunxi Chen, Weiping Fan, Jianjun Zhou, et al.

Molecular hydrogen (H2) is a colorless and odorless gas. Studies have shown that H2 inhalation has the therapeutic effects in many animal studies and clinical trials, and its application is recommended in the novel coronavirus pneumonia treatment guidelines in China recently. H2 has a relatively small molecular mass, which helps it quickly spread and penetrate cell membranes to exert a wide range

Literature ReviewHighlighted

Homeostatic and endocrine responses as the basis for systemic therapy with medical gases: ozone, xenon and molecular hydrogen

MHID-5196947PMID: 342135002021Medical Gas Research

Eugene Iv. Nazarov, Igor Alb. Khlusov, Mami Noda

Among medical gases, including gases used therapeutically, this review discusses the comparative physiological activity of three gases – ozone (O3), xenon (Xe) and molecular hydrogen (H2), which together form representatives of three types of substances – typical oxidizing, inert, and typical reducing agents. Upon analysis of published and proprietary data, we concluded that these three medical ga

Mechanisms ReviewHighlighted

Molecular and Cellular Mechanisms Associated with Effects of Molecular Hydrogen in Cardiovascular and Central Nervous Systems

MHID-2592715PMID: 351026012020Antioxidants

Miroslav Barancik, Branislav Kura, Tyler W. LeBaron, Roberto Bolli, Jozef Buday, Jan Slezak

The increased production of reactive oxygen species and oxidative stress are important factors contributing to the development of diseases of the cardiovascular and central nervous systems. Molecular hydrogen is recognized as an emerging therapeutic, and its positive effects in the treatment of pathologies have been documented in both experimental and clinical studies. The therapeutic potential of

Literature ReviewMeta-Analysis

Prospects of molecular hydrogen in perioperative neuroprotection from basic research to clinical application

MHID-7985788PMID: 328266282020Current Opinion in Anesthesiology

Zhen Wang, Guolin Wang, Keliang Xie

Purpose of review: The current systematic review summarizes recent, basic clinical achievements regarding the neuroprotective effects of molecular hydrogen in distinct central nervous system conditions. Recent findings: Perioperative neuroprotection remains a major topic of clinical anesthesia. Various gaseous molecules have previously been explored as a feasible therapeutic option in neurologica

Literature ReviewMechanisms Review

Therapeutic Efficacy of Molecular Hydrogen: A New Mechanistic Insight

MHID-7292103PMID: 310571052019Current Pharmaceutical Design

Toru Ishibashi

Background: Molecular hydrogen (H2) is now recognized as a therapeutic gas for the treatment of numerous diseases including neurodegenerative diseases, metabolic disorders, and inflammatory diseases. Non- polar, neutral H2 is assumed to have health benefits facilitated by its passive diffusion across the human body immediately after administration and is considered a safe therapeutic inert gas tha

Observational StudyHighlighted

Case Report: Buccal administration of hydrogen-producing blend after a mild traumatic brain injury in a professional athlete [version 1; peer review: 2 approved]

MHID-9389875PMID: 325959372019F1000Research

Dejan Javorac, Valdemar Stajer, Sergej M Ostojic

Sport-related mild traumatic brain injury (TBI) is a serious Background: trauma that could impair brain function of an injured athlete. Treatment solutions for mild TBI typically concentrate on complete rest, while non-traditional therapeutic options remain largely ineffective. Molecular hydrogen (H ) is an innovative neuroprotective agent that can easily reach the brain, yet no data are available

Animal StudyHighlighted

Perioperatively Inhaled Hydrogen Gas Diminishes Neurologic Injury Following Experimental Circulatory Arrest in Swine

MHID-8554516PMID: 310619202019JACC: Basic to Translational Science

Alexis R. Cole, BS, Dorothy A. Perry, MBCHB, Ali Raza, MD, Arthur P. Nedder, DVM, Elizabeth Pollack, DVM CANDIDATE, William L. Regan, CCP, LP, et al.

This study used a swine model of mildly hypothermic prolonged circulatory arrest and found that the addition of 2.4% inhaled hydrogen gas to inspiratory gases during and after the ischemic insult significantly decreased neurologic and renal injury compared with controls. With proper precautions, inhalational hydrogen may be administered safely through conventional ventilators and may represent a co

Literature Review

Circulating messenger for neuroprotection induced by molecular hydrogen

MHID-8766047PMID: 311002032019Canadian Journal of Physiology and Pharmacology

Mami Noda, Yuya Uemura, Yusuke Yoshii, Taichi Horita, Shota Takemi, Ichiro Sakata, et al.

Molecular hydrogen (H2) showed protection against various kinds of oxidative stress- related diseases. First it was reported that the mechanism of therapeutic effects of H2 was anti-oxidative effect due to inhibition of most cytotoxic reactive oxygen species (ROS), hydroxy radical (•OH). However, after chronic administration of H2 in drinking water, oxidative stress-induced nerve injury is signifi

Animal Study

Positive effect of an electrolyzed reduced water on gut permeability, fecal microbiota and liver in an animal model of Parkinson’s disease

MHID-4869388PMID: 316002562019PLoS ONE

Laura Bordoni, Rosita Gabbianelli, Donatella Fedeli, Dennis Fiorini, Ina Bergheim, Cheng Jun Jin, et al.

There is growing awareness within the scientific community of the strong connection between the inflammation in the intestine and the pathogenesis of Parkinson’s disease (PD). In previous studies we developed a PD animal model exposing pup rats to permethrin (PERM) pesticide. Here, we intended to explore whether in our animal model there were changes in gut permeability, fecal microbiota and hepat

In VitroIn SilicoHighlighted

Quantification of hydrogen production by intestinal bacteria that are specifically dysregulated in Parkinson’s disease

MHID-67149392018PLoS ONE

Anzu Suzuki, Mikako Ito, Tomonori Hamaguchi, Hiroshi Mori, Yuka Takeda, Ryuko Baba, et al.

Oral administration of hydrogen water ameliorates Parkinson’s disease (PD) in rats, mice, and humans. We previously reported that the number of putative hydrogen-producing bacte- ria in intestinal microbiota is low in PD compared to controls. We also reported that the amount of hydrogen produced by ingestion of lactulose is low in PD patients. The decreased hydrogen production by intestinal microb

Clinical Trial

Inhalation of hydrogen gas elevates urinary 8-hydroxy-2′-deoxyguanine in Parkinson’s disease

MHID-0476956PMID: 307136662018Medical Gas Research

Masaaki Hirayama, Mikako Ito, Tomomi Minato, Asako Yoritaka, Tyler W. LeBaron, Kinji Ohno

Hyposmia is one of the earliest and the most common symptoms in Parkinson’s disease (PD). The benefits of hydrogen water on motor deficits have been reported in animal PD models and PD patients, but the effects of hydrogen gas on PD patients have not been studied. We evaluated the effect of inhalation of hydrogen gas on olfactory function, non-motor symptoms, activities of daily living, and urinar

Animal StudyHighlighted

Hydrogen-Rich Water Ameliorates Autistic-Like Behavioral Abnormalities in Valproic Acid-Treated Adolescent Mice Offspring

MHID-7672684PMID: 301277282018Frontiers in Behavioral Neuroscience

Qingjun Guo, Xi Yin, Meng Qiao, Yujiao Jia, Dandan Chen, Juan Shao, et al.

Due to its anti-inflammatory and anti-oxidative effects, recent research has demonstrated that molecular hydrogen can serve as a new medical approach for depression, anxiety and traumatic brain injury. However, its potential effects on neurodevelopmental diseases, such as autism are still elusive. The present study aims to investigate the potential effects of hydrogen-rich water (HRW) administratio

Clinical TrialAnimal StudyHighlighted

Effects of Molecular Hydrogen Assessed by an Animal Model and a Randomized Clinical Study on Mild Cognitive Impairment

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

Molecular hydrogen in the treatment of acute and chronic neurological conditions: mechanisms of protection and routes of administration

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

Animal StudyHighlighted

Complexity of Stomach–Brain Interaction Induced by Molecular Hydrogen in Parkinson’s Disease Model Mice

MHID-6379034PMID: 284624512017Neurochemical Research

Yusuke Yoshii, Taikai Inoue, Yuya Uemura, Yusaku Iwasaki, Toshihiko Yada, Yusaku Nakabeppu, et al.

Molecular hydrogen (H2), as a new medical gas, has protective effects in neurological disorders including Parkinson’s disease (PD). In our previous report, the neuroprotective effect of drinking water with saturated H2 (H2 water) in PD mice might be due to stomach–brain interaction via release of gastric hormone, ghrelin. In the present study, we assessed the effect of H2-induced ghrelin more prec

In Vitro

Molecular hydrogen protects against oxidative stress-induced SH-SY5Y neuroblastoma cell death through the process of mitohormesis

MHID-7973359PMID: 284674972017PLOS ONE

Yayoi Murakami, Masafumi Ito, Ikuroh Ohsawa

Inhalation of molecular hydrogen (H2) gas ameliorates oxidative stress-induced acute injuries in the brain. Consumption of water nearly saturated with H2 also prevents chronic neurodegenerative diseases including Parkinson’s disease in animal and clinical studies. However, the molecular mechanisms underlying the remarkable effect of a small amount of H2 remain unclear. Here, we investigated the ef

Clinical TrialHighlighted

Hydrogen Gas Inhalation Treatment in Acute Cerebral Infarction: A Randomized Controlled Clinical Study on Safety and Neuroprotection

MHID-7349011PMID: 286696542017Journal of Stroke and Cerebrovascular Diseases

Hirohisa Ono, MD, Yoji Nishijima, MD, Shigeo Ohta, PhD, Masaki Sakamoto, MD, Kazunori Kinone, MD, Tohru Horikosi, MD, et al.

Background: Molecular hydrogen (H2) acts as a therapeutic antioxidant. Inhalation of H2 gas (1-4%) was effective for the improvement of cerebral infarction in multiple animal experiments. Thus, for actual applications, a randomized con- trolled clinical study is desired to evaluate the effects of inhalation of H2 gas. Here, we evaluate the H2 treatment on acute cerebral infarction. Methods: Throu

Animal StudyIn VitroHighlighted

Hydrogen-Rich Saline Attenuates Brain Injury Induced by Cardiopulmonary Bypass and Inhibits Microvascular Endothelial Cell Apoptosis Via the PI3K/Akt/GSK3β Signaling Pathway in Rats

MHID-9607497PMID: 290409782017Cellular Physiology and Biochemistry

Keyan Chen, Nan Wang, Yugang Diao, Wanwei Dong, YingJie Sun, Lidan Liu, et al.

Background/Aims: Cardiopulmonary bypass (CPB) is prone to inducing brain injury during open heart surgery. A hydrogen-rich solution (HRS) can prevent oxidation and apoptosis, and inhibit inflammation. This study investigated effects of HRS on brain injury induced by CPB and regulatory mechanisms of the PI3K/Akt/GSK3β signaling pathway. Methods: A rat CPB model and an in vitro cell hypoxia model w

Animal StudyIn VitroHighlighted

Hydrogen-rich saline attenuates isoflurane-induced caspase-3 activation and cognitive impairment via inhibition of isoflurane-induced oxidative stress, mitochondrial dysfunction, and reduction in ATP levels

MHID-6714009PMID: 283863422017American Journal of Translational Research

Cheng Li, Lengchen Hou, Dan Chen, Fuqing Lin, Tao Chang, Mengzhu Li, et al.

Objectives: The inhaled general anesthetic isoflurane has been shown to induce caspase-3 activation in vitro and in vivo. The underlying mechanisms and functional consequences of this activity remain unclear. Isoflurane can induce caspase-3 activation by causing accumulation of reactive oxygen species (ROS), mitochondrial dysfunction, and reduction in adenosine triphosphate (ATP) levels. This stud