Literature ReviewOpinion PieceHighlighted
MHID-7464677PMID: 340520182022The Journal of Thoracic and Cardiovascular Surgery
John N. Kheir, MD, James A. DiNardo, MD
Diatomic hydrogen (H2) is the lightest and most abundant molecule in the universe. Hydrogen's reactivity with oxygen is well recognized as a thermodynamically favorable redox reaction that forms water. H2's small size results in unsurpassed diffusivity (even diffusing through steel), enabling it to reach therapeutic targets effectively even in low-flow states. In vivo, inhaled H2 undergoes solubil
Literature ReviewHypothesis
MHID-74012472022GSC Biological and Pharmaceutical Sciences
Grace Russell, Alexander Nenov
Women account for half of the global population, yet, when applying of the principles of legislation to women's health
and gender-based research there is a void pertaining to women-specific healthcare as they age. Hydrogen therapies
such as oxy-hydrogen (HHO, H2/O2) inhalation act as a novel, non-toxic, antioxidant and anti-inflammatory compounds,
with clinical and empirical research confidently s
Literature Review
MHID-8534460PMID: 351878852022Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)
Zhiling Fu, Jin Zhang
Molecular hydrogen exerts biological effects on nearly all organs. It has anti-oxidative, anti-inflammatory, and anti-aging effects and contributes to the regulation of autophagy and cell death. As the primary organ for gas exchange, the lungs are constantly exposed to various harmful environmental irritants. Short- or long-term exposure to these harmful substances often results in lung injury, ca
Literature Review
MHID-1010920PMID: 353402182022Oxidative Medicine and Cellular Longevity
Zhiling Fu, Jin Zhang, Yan Zhang
Ageing is a physiological process of progressive decline in the organism function over time. It affects every organ in the body and is a significant risk for chronic diseases. Molecular hydrogen has therapeutic and preventive effects on various organs. It has antioxidative properties as it directly neutralizes hydroxyl radicals and reduces peroxynitrite level. It also activates Nrf2 and HO-1, which r
Literature ReviewHighlighted
MHID-8010762PMID: 348346332021Plants
John T. Hancock, Tyler W. LeBaron, Jennifer May, Adam Thomas, Grace Russell
Despite being trialed in other regions of the world, the use of molecular hydrogen (H2) for enhanced plant growth and the postharvest storage of crops has yet to be widely accepted in the UK. The evidence that the treatment of plants and plant products with H2 alleviates plant stress and slows crop senescence continues to grow. Many of these effects appear to be mediated by the alteration of the a
Literature ReviewHighlighted
MHID-9435089PMID: 330767982021Current Pharmaceutical Design
Mami Noda, Jiankang Liu, Jiangang Long
One of the beneficial effects of molecular hydrogen (H2, hydrogen gas) is neuroprotection and pre- vention of neurological disorders. It is important and useful if taking H2 every day can prevent or ameliorate the progression of neurodegenerative disorders, such as Parkinson’s disease or Alzheimer’s disease, both lacking specific therapeutic drugs. There are several mechanisms of how H2 protects n
Literature Review
MHID-9272690PMID: 330783742021Neuroscience Bulletin
Wei Chen, Han-Ting Zhang, Shu-Cun Qin
Molecular hydrogen (H2) is a physiologically inert gas. However, during the last 10 years, increasing evidence has revealed its biological functions under pathological conditions. More specifically, H2 has protec- tive effects against a variety of diseases, particularly nervous system disorders, which include ischemia/reperfu- sion injury, traumatic injury, subarachnoid hemorrhage, neuropathic pain
Literature Review
MHID-6029476PMID: 346464232021Oxidative Medicine and Cellular Longevity
Duried Alwazeer, Franky Fuh-Ching Liu, Xiao Yu Wu, Tyler W. LeBaron
COVID-19 is a widespread global pandemic with nearly 185 million confirmed cases and about four million deaths. It is caused by an infection with the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), which primarily affects the alveolar type II pneumocytes. The infection induces pathological responses including increased inflammation, oxidative stress, and apoptosis. This situation result
Literature Review
MHID-48068842021Hydrogen
Grace Russell, Alexander Nenov, Hesham Kisher, John T. Hancock
Since the late 18th century, molecular hydrogen (H2) has been shown to be well tolerated, firstly in animals, and then in humans. However, although research into the beneficial effects of molecular hydrogen in both plant and mammalian physiology is gaining momentum, the idea of utilising this electrochemically neutral and non-polar diatomic compound for the benefit of health has yet to be widely acce
Literature ReviewHighlighted
MHID-5389125PMID: 344454282021International Journal of Molecular Sciences
Shin-ichi Hirano, Haru Yamamoto, Yusuke Ichikawa, Bunpei Sato, Yoshiyasu Takefuji, Fumitake Satoh
While many antitumor drugs have yielded unsatisfactory therapeutic results, drugs are one of the most prevalent therapeutic measures for the treatment of cancer. The development of cancer largely results from mutations in nuclear DNA, as well as from those in mitochondrial DNA (mtDNA). Molecular hydrogen (H2), an inert molecule, can scavenge hydroxyl radicals (·OH), which are known to be the stron
Literature Review
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
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
Literature Review
MHID-3527018PMID: 338995452021Experimental Biology and Medicine
Lini Quan, Bin Zheng, Huacheng Zhou
Lung grafts may experience multiple injuries during lung transplantation, such as warm ischaemia, cold ischaemia, and reperfusion injury. These injuries all contribute to primary graft dysfunction, which is a major cause of morbidity and mortality after lung transplanta-
tion. As a potential selective antioxidant, hydrogen molecule (H2) protects against post-
transplant complications in animal mod
Human StudyLiterature ReviewAnimal Study
MHID-2665690PMID: 333492132021Current Pharmaceutical Design
Motoaki Sano, Tomoyoshi Tamura
Background: Mounting evidence indicates that hydrogen gas (H2) is a versatile therapeutic agent, even at very low, non-combustible concentrations. The Chinese National Health and Medical Commission recently recommended the use of inhaled H2 in addition to O2 therapy in the treatment of COVID-19-associated pneumonia, and its effects extend to anti-tumor, anti-inflammatory and antioxidant actions.
Literature Review
MHID-0972119PMID: 342812642021International Journal of Molecular Sciences
Haru Yamamoto, Yusuke Ichikawa, Shin-ichi Hirano, Bunpei Sato, Yoshiyasu Takefuji, Fumitake Satoh
Mibyou, or pre-symptomatic diseases, refers to state of health in which a disease is slowly developing within the body yet the symptoms are not apparent. Common examples of mibyou in modern medicine include inflammatory diseases that are caused by chronic inflammation. It is known that chronic inflammation is triggered by the uncontrolled release of proinflammatory cytokines by neutrophils and macroph
Literature ReviewHighlighted
MHID-9169500PMID: 327679252021Current Pharmaceutical Design
Shigeo Ohta
Molecular hydrogen (H2) was long regarded as non-functional in mammalian cells. We overturned the concept by demonstrating that H2 exhibits antioxidant effects and protects cells against oxidative stress. Subsequently, it has been revealed that H2 has multiple functions in addition to antioxidant effects, including anti-inflammatory, anti-allergic functions, and as cell death and autophagy regulat
Literature ReviewMeta-Analysis
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 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
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
