HypothesisOpinion PieceHighlighted
MHID-6155704PMID: 402510252025Medical Gas Research
Nikola Todorovic, Jovan Kuzmanovic, Dejan Javorac, Sergej M Ostojic
The increasing prevalence of obesity and non-communicable diseases has become a major global health concern, contributing to significant morbidity and mortality rates. These conditions not only burden healthcare systems but also affect the individual’s quality of life worldwide. As these challenges continue to grow, there is a pressing need to explore treatment options that are effective, affordab
Hypothesis
MHID-2190797PMID: 409385202025Intensive Care Medicine Experimental
Lakhmir S. Chawla
Molecular hydrogen gas (HG), administered through inhalation or as hydrogen-rich fluids (HRF), has demonstrated antioxidant, anti-inflammatory, antiapoptotic, cytoprotective, and beneficial mitochondrial effects in critical illness. Preclinical studies and human clinical studies consistently endorse hydrogen gas as safe, with mechanisms of action linked to vital molecular pathways, such as reducti
In SilicoHypothesisHighlighted
MHID-3775261PMID: 398291632025Medical Gas Research
Grace Russell
Hydrogen (H2), the simplest and most ubiquitous molecule in the universe, has garnered significant scientific interest over the past two decades because of its potential as an effective antioxidant and anti-inflammatory agent. Traditionally considered inert, H2 is now being re-evaluated for its unique bioactive properties. H2 selectively neutralizes reactive oxygen and nitrogen species, mitigating
Meta-AnalysisHypothesisHighlighted
MHID-1049920PMID: 404064272024Gastroenterology and Hepatology From Bed to Bench
Ghazaleh Khalili-Tanha, Hamid Jamialahmadi, Mostafa Rezaei-Tavirani, Elham Nazari
Aim: This systematic review and meta-analysis aimed to assess the effect of hydrogen-rich water (HRW) on liver enzyme levels.
Background: Liver disease is a significant global health concern, greatly affecting mortality rates. Elevated levels of liver enzymes, such as ALT, AST, ALP, and GGT are early symptoms of liver disorders, and various approaches can help reduce them. Recent studies have sho
Chemical/Physicochemical StudyHypothesisHighlighted
MHID-10655712023Aging Pathobiology and Therapeutics
Shigeo Ohta
Oxidative stress is one of the major causes of most age-dependent neurodegenerative disorders. Neurons accumulate oxidative damage over time due to post-mitotic cells. Thus, modulation of oxidative stress is essential to overcome these disorders. Molecular hydrogen (H2) has great potential for treating various diseases and improving quality of life by exerting multiple functions including anti-oxi
Literature ReviewHypothesisHighlighted
MHID-3205850PMID: 359678412022Frontiers in Cellular and Infection Microbiology
Sergej M Ostojic
The molecular footprints of COVID-19 occur everywhere, even reaching the family of biologically active gases and gasotransmitters. Besides nitric oxide and hydrogen sulfide, COVID-19 might also alter the homeostasis of dihydrogen (H2), another gaseous bioactive molecule produced endogenously by the human gut bacteria. Many studies have shown various alterations of the gut microbiota in patients wit
HypothesisOpinion PieceOtherHighlighted
MHID-0628712PMID: 356757612022Annals of Nutrition and Metabolism
Sergej M Ostojic
Molecular hydrogen (dihydrogen or hydrogen gas) is a small bioactive molecule involved in various metabolic pathways, from redox-sensitive reactions and cell signaling to bioenergetics and gut microbiota biology. Drinking hydrogen-rich water (HRW) has been suggested as a safe, novel, and promising nutritional strategy to attenuate metabolic disorders and burdensome and highly prevalent conditions
Hypothesis
MHID-81905412022Oxygen
John T. Hancock, Grace Russell, Tim J. Craig, Jennifer May, H. Ruth Morse, Jonathan S. Stamler
Hydrogen gas (molecular hydrogen, H2) has significant effects in a range of organisms, from plants to humans. Many inert gases have been reported to have similar effects, and such responses may be most pronounced when cells are stressed. Xenon (Xe), for example, is a well-known anesthetic. The direct targets of these gases, in most cases, remain elusive. Myoglobin and hemoglobin are known for their
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
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
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
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.
HypothesisHighlighted
MHID-5411216PMID: 265088672015Therapeutics and Clinical Risk Management
Yuanli Chen, Chunlin Zong, Yuxuan Guo, Lei Tian
Hydrogen, a therapeutic medical gas, can exert antioxidant activity via selectively reducing cytotoxic reactive oxygen species such as hydroxyl radicals. Hydrogen-rich saline is an alternative form of molecular hydrogen that has been widely used in many studies, including metabolic syndrome, cerebral, hepatic, myocardial ischemia/reperfusion, and liver injuries with obstructive jaundice, with bene
HypothesisHighlighted
MHID-49572952011Medical Science Monitor
Yunhai Chuai, Luqian Zhao, Jin Ni, Ding Sun, Jianguo Cui, Bailong Li, et al.
Radiotherapy is an important modality of cancer treatment. Radiation pneumonitis is a major obstacle to increasing the radiation dose in radiotherapy, and it is important to prevent this radiation-induced complication. Recent studies show that hydrogen has a potential as an effective and safe radioprotective agent by selectively reducing hydroxyl and peroxynitrite radicals. Since most of the ioniz
HypothesisHighlighted
MHID-5193561PMID: 196648842010Medical Hypotheses
Cong Liu, Jianguo Cui, Quan Sun, Jianming Cai
Hydrogen is the most abundant chemical element in the universe, however, it is seldom regarded as a therapeutic gas. Recent studies show that inhaled hydrogen gas (H2) has antioxidant and antiapoptotic activities that protect the brain against ischemia–reperfusion injury and stroke by selectively reducing hydroxyl and peroxynitrite radicals. It is also well known that more than a half of the ioniz
Hypothesis
MHID-5798200PMID: 212751142010West Indian Medical Journal
Liren Qian, Bailong Li, Jianming Cai, Fu Gao
Most ionizing radiation-induced damage is caused by radical oxygen species (ROS).
Some
radioprotectors, such as amifostine, exert radioprotective effects by scavenging radical oxygen species.
Recent studies show that hydrogen (H2) has antioxidant activities that protect the brain and intestine
against ischaemia-reperfusion injury and stroke by selectively reducing hydroxyl and peroxynitrite
radica
