HypothesisOpinion Piece
MHID-9436520PMID: 329827932020Frontiers in Physiology
Sergej M Ostojic
Barton et al. (2018) have recently evaluated the differences in fecal microbiota between professional rugby players and healthy age-matched sedentary controls. The authors reported a rather preferential intestinal microbiome profile in physically active individuals, characterized by the greater microbial diversity and functional/metabolic activity, as evaluated by whole metagenome shotgun sequencing
Literature Review
MHID-9675573PMID: 320157862020Oxidative Medicine and Cellular Longevity
Takuji Kawamura, Kazuhiko Higashida, Isao Muraoka
Molecular hydrogen (H2) is a colorless, tasteless, odorless, and minimal molecule with high flammability. Although H2 has been thought to be an inert gas in living bodies for many years, an animal study reported that inhalation of H2 gas decreased oxidative stress and suppressed brain injury caused by ischemia and reperfusion injury due to its antioxidant action. Since then, the antioxidant action
Opinion Piece
MHID-94117542020Therapeutic Advances in Respiratory Disease
Sergej M Ostojic
Recent public reports by China’s National Health Commission and the Chinese Center for Disease Control and Prevention have recommended effective oxygen therapy measures as an element of general treatment in patients with novel coronavirus pneumonia (COVID-19).1,2 Both documents disclosed a rather exotic ratio of hydrogen and oxygen (66.6% H2 to 33.3% O2) as the composition of the gas mixture for i
HypothesisHighlighted
MHID-3994699PMID: 324455282020Alimentary Pharmacology & Therapeutics
Sergej M Ostojic
EDITORS, I have read with great interest the systematic review with meta- analysis written by Ianiro and co-workers,1 in which the authors have evaluated the efficacy of faecal microbiota transplantation (FMT, or bacteriotherapy) for the treatment of irritable bowel syndrome (IBS). Although only a handful of studies were eligible to be included in this meticulous analysis, the authors implied that
Literature ReviewHypothesis
MHID-1633113PMID: 321896692020Medical Gas Research
Shin-ichi Hirano, Yusuke Ichikawa, Ryosuke Kurokawa, Yoshiyasu Takefuji, Fumitake Satoh
It has been revealed that the cause of senescence and diseases is associated with the reactive oxygen species “hydroxyl radicals” (·OH). Se- nescence and diseases may be overcome as long as we can scavenge •OH mostly produced in mitochondria. It is one and only one “molecular hydrogen” (H2) that can both penetrate into the mitochondria and scavenge the •OH. The H2 in the body can function in disea
Literature Review
MHID-3062702PMID: 327638202020Biomedicine & Pharmacotherapy
Qiongge Hu, Yunxiang Zhou, Shijie Wu, Wei Wu, Yongchuan Deng, Anwen Shao
In recent years, many studies have shown that hydrogen has therapeutic and preventive effects on various diseases. Its selective antioxidant properties were well noticed. Most of the ionizing radiation-induced damage is caused by hydroxyl radicals (.OH) from radiolysis of H2O . Since hydrogen can mitigate such damage through multiple mechanisms, it presents noteworthy potential as a novel radio-pro
Literature Review
MHID-3461972PMID: 309702152019Canadian Journal of Physiology and Pharmacology
Tyler W. LeBaron, Ismail Laher, Branislav Kura, Jan Slezak
H2 has been clinically demonstrated to provide antioxidant and anti-inflammatory effects, which makes it an attractive agent in exercise medicine. Although exercise provides a multiplicity of benefits including decreased risk of disease, it can also have detrimental effects. For example, chronic high-intensity exercise in elite athletes, or sporadic bouts of exercise (i.e. noxious exercise) in unt
Literature Review
MHID-23826142019Journal of Nutritional Oncology
Dong Yue Du, Yun Hua Peng, Jian Kang Liu, Jian Gang Long
Molecular hydrogen is an effective antioxidant. Numerous studies have demonstrated the therapeutic effects of hydrogen in the treatment of various human diseases. The possibility of using hydrogen in the treatment of cancer was first discovered in 1975, and in recent studies, researchers have reported numerous positive effects of hydrogen in cancer therapy, including: 1) the alleviation of complic
Literature ReviewMechanisms Review
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
Literature Review
MHID-1929560PMID: 317383892019Acta Biochimica et Biophysica Sinica
Geru Tao, Guohua Song, Shucun Qin
Ever since molecular hydrogen was first reported as a hydroxyl radical scavenger in 2007, the beneficial effect of hydrogen was documented in more than 170 disease models and human diseases including ischemia/reperfusion injury, metabolic syndrome, inflammation, and cancer. All these pathological damages are concomitant with overproduction of reactive oxygen species (ROS) where molecular hydrogen has
Literature Review
MHID-1011283PMID: 312232852019International Journal of Biological Sciences
Peng Qiu, Yang Liu, Jin Zhang
Sepsis is a syndrome comprised of a series of life-threatening organ dysfunctions caused by a maladjusted body response to infection with no effective treatment. Molecular hydrogen is a new type of antioxidant with strong free radical scavenging ability, which has been demonstrated to be effective for treating various diseases, such as infection, trauma, poisoning, organ ischemia-reperfusion, meta
Literature Review
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
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
Literature Review
MHID-5774686PMID: 301278612018Oncology Letters
Ye Yang, Yaping Zhu, Xiaowei Xi
Hydrogen (H2) has advantages that lead it to be
used as a novel antioxidant in preventive and therapeutic
applications. H2 can permeate into biomembranes, cytosol,
mitochondria and nuclei, and can be dissolved in water or
saline to produce H2 water or H2‑rich saline. H2 selectively
reduces oxidants of the detrimental reactive oxygen species
(ROS), including hydroxyl radicals (·OH) and peroxynitrit
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
HypothesisHighlighted
MHID-0066983PMID: 284354682017Theranostics
Sergej M Ostojic
More than 400 original articles have been published from 2007 onwards evaluating therapeutic potential of molecular hydrogen (H2), the youngest member of medical gases family with selective anti-oxidative properties. However, recent studies suggest that H2 may tackle other mitochondrial processes besides oxidative stress, including metabolic pathways that drive cellular energy.
Mechanisms ReviewHighlighted
MHID-2497534PMID: 285968082017Experimental and Therapeutic Medicine
YIMING LIU, Jin Zhang
The pathogenesis of acute lung injury (ALI) induced by lipopolysaccharide (LPS) involves excessive pulmonary inflammation and oxidative stress. In turn, autophagy is associated with inflammatory diseases and organ dysfunction, and studies have demonstrated that LPS treatment may trigger autophagy. Thus, excessive autophagy may stimulate the strong inflammatory response observed in the development
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
