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
Animal StudyHighlighted
MHID-2877540PMID: 355582592022Translational Andrology and Urology
Yoshitaka Kinoshita, Kohsuke Shirakawa, Motoaki Sano, Takashi Yokoo, Haruki Kume, Eiji Kobayashi
Background: Acute kidney injury and its central pathology, renal ischemia reperfusion injury (IRI), have been studied in many animal models. Although renal IRI has been induced in pig models in many ways, simultaneous bilateral ischemia or unilateral ischemia along with contralateral nephrectomy models only provide data on the renal response to a single ischemia time. Moreover, it has been reporte
Animal StudyHighlighted
MHID-2655528PMID: 352732492022Scientific Reports
Yao Mawulikplimi Adzavon, Fei Xie, Yang Yi, Xue Jiang, Xiaokang Zhang, Jin He, et al.
Molecular hydrogen (H2) has emerged as a new therapeutic option in several diseases and is widely adopted by healthy people. However, molecular data to support therapeutic functions attributed to the biological activities of H2 remain elusive. Here, using transcriptomic and metabolomic approaches coupled with biochemistry and micro-CT technics, we evaluated the effect of long-term (6 months) and d
Animal StudyHighlighted
MHID-2919108PMID: 349481072021International Journal of Molecular Sciences
Eun-Sook Jeong, Johny Bajgai, In-Soo You, Md. Habibur Rahman, Ailyn Fadriquela, Subham Sharma, et al.
Oxidative stress (OS) is one of the causative factors in the pathogenesis of various neurode- generative diseases, including Alzheimer’s disease (AD) and cognitive dysfunction. In the present study, we investigated the effects of hydrogen (H2) gas inhalation in trimethyltin (TMT)-induced neurotoxicity and cognitive dysfunction in the C57BL/6 mice. First, mice were divided into the following groups
In VitroHighlighted
MHID-0634713PMID: 347707842021Molecules
In-Soo You, Subham Sharma, Ailyn Fadriquela, Johny Bajgai, Thuy Trinh Thi, Md. Habibur Rahman, et al.
Oxidative stress plays a crucial role in the development of airway diseases. Recently, hydrogen (H2) gas has been explored for its antioxidant properties. This study investigated the role of H2 gas in oxidative stress-induced alveolar and bronchial airway injury, where A549 and NCI-H292 cells were stimulated with hydrogen peroxide (H2O2) and lipopolysaccharide (LPS) in vitro. Results show that tim
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-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
Clinical TrialObservational StudyHighlighted
MHID-5538038PMID: 345130692021Sovremennye tehnologii v medicine
D.A. Danilova, Yu.D. Brichkin, A.P. Medvedev, V.V. Pichugin, S.A. Fedorov, E.V. Taranov, et al.
The aim of this work was to study the effect of molecular hydrogen on oxidative processes in cardiac surgery patients with acquired valve heart disease applied during surgery under cardiopulmonary bypass (CPB).
Materials and Methods. The study involved 20 patients (16 men and 4 women) with acquired heart valve disease who were operated on under CPB. Two groups of patients were formed. In group 1
Animal StudyHighlighted
MHID-1280112PMID: 344009012021International Journal of Medical Sciences
Hongxiao Yang, Shuang Liu, Huijun Du, Zi Hong, Yajing Lv, Chaoqun Nie, et al.
Purpose: Hydrogen (H2) is an antioxidant with anti-inflammatory and apoptosis functions.This study aimed to estimate the effects of H2 on acute myocardial infarction (AMI) in rats and its association with the inhibition of oxidative stress and cardiomyocyte pyroptosis. Methods: Sixty-four rats were randomly divided into three groups (Sham, AMI, and H2). The left anterior descending coronary artery
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 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 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
Animal StudyHighlighted
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
Clinical Trial
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
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 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
Animal StudyIn VitroHighlighted
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
