MHID-4500362PMID: 286735862017Medical hypotheses
Ara J, Nuwormegbe SA, Sajo MEJ, Kim SK, Shim KY, Lee KJ
Polycystic ovarian syndrome (PCOS) is an endocrine-metabolic disorder characterized by hormonal disturbances including hyperandrogenemia, insulin resistance, and hyperinsulinemia culminating into obesity, multiple ovarian cysts and anovulatory infertility in women. There has been no effective medication against PCOS and its complication. However, weight loss can reduce insulin resistance, which in
Animal Study
MHID-6821344PMID: 281483012017BMC Musculoskeletal Disorders
Jia Li, Zhaogang Ge, Lihong Fan, Kunzheng Wang
Background: The objective of this study was to investigate the protective effects of molecular hydrogen, a novel and selective antioxidant, on steroid-induced osteonecrosis (ON) in a rabbit model.
Methods: Sixty rabbits were randomly divided into two groups (model group and hydrogen group). Osteonecrosis was induced according to an established protocol of steroid-induced ON. Rabbits in the hydrog
MHID-8305949PMID: 268666502017Redox Report
Satoru Hasegawa, Mikako Ito, Mayu Fukami, Miki Hashimoto, Masaaki Hirayama, Kinji Ohno
Duchenne muscular dystrophy (DMD) is a devastating muscle disease caused by a mutation in DMD encoding dystrophin. Oxidative stress accounts for dystrophic muscle pathologies in DMD. We examined the effects of molecular hydrogen in mdx mice, a model animal for DMD.
Methods: The pregnant mother started to take supersaturated hydrogen water (>5 ppm) ad libitum from E15.5 up to weaning of the offspri
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
Ex VivoHighlighted
MHID-8457494PMID: 283509672017Canadian Journal of Physiology and Pharmacology
Marek Zálešák, Branislav Kura, Ján Graban, Veronika Ledvényiová-Farkašová, Jan Slezak, Tatiana Ravingerova
Generation of free radicals through incomplete reduction of oxygen during ischemia/ reperfusion is well-described. On the other hand, molecular hydrogen (H2) reduces oxidative stress due to its ability to react with strong oxidants and easily penetrate cells by diffusion, without disturbing metabolic redox reactions. This study was designed to explore cardioprotective potential of hypoxic postcond
In VitroHighlighted
MHID-1014265PMID: 286201982017Scientific Reports
Ching-Ying Wu, Wen-Li Hsu, Ming-Hsien Tsai, Jui-Lin Liang, Jian-He Lu, Chia-Jung Yen, et al.
Based on the oxidative stress theory, aging derives from the accumulation of oxidized proteins induced by reactive oxygen species (ROS) in the cytoplasm. Hydrogen peroxide (H2O2) elicits ROS that induces skin aging through oxidation of proteins, forming disulfide bridges with cysteine or methionine sulfhydryl groups. Decreased Ca2+ signaling is observed in aged cells, probably secondary to the for
Animal Study
MHID-5925679PMID: 290890292017BMC Nephrology
Masaaki Nakayama, Wan-Jun Zhu, Kimio Watanabe, Ayano Gibo, Ali M. Sherif, Shigeru Kabayama, et al.
Background: Peritoneal dialysis (PD) is used as renal replacement therapy in patients with end-stage kidney disease. However, peritoneal membrane failure remains problematic and constitutes a critical cause of PD discontinuation. Recent studies have revealed the unique biological action of molecular hydrogen (H2) as an antioxidant, which ameliorates tissue injury. In the present study, we aimed to
Observational StudyHighlighted
MHID-9655362PMID: 289029002017PLoS ONE
Masaaki Nakayama, Noritomo Itami, Hodaka Suzuki, Hiromi Hamada, Naoyuki Osaka, Ryo Yamamoto, et al.
Background and aim: It is supposed that enhanced oxidative stress and inflammation are involved with the poor clinical outcomes in patients on chronic dialysis treatment. Recent studies have shown that molecular hydrogen (H2) is biologically active as an anti-inflammatory agent. Thus, we developed a novel hemodialysis (E-HD) system which delivers H2 (30 to 80 ppb)-enriched dialysis solution, to co
Animal StudyHighlighted
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
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
MHID-9173843PMID: 279654182017Postgraduate medical journal
Ostojic SM.
About 150 years ago, molecular hydrogen (H2) has been identified as a main component of intestinal gas in humans, with subsequent studies detailed its production by coliform bacteria of large intestine as a consequence of food fermentation. Being traditionally recognised as a biologically inert gas, endogenous H2 is either passed in flatus or absorbed by colon mucosa into the circulation and then
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.
MHID-6937869PMID: 311241362017Scientific Reports
Qiang Gao, Han Song, Xiao-ting Wang, Ying Liang, Yan-jie Xi, Yuan Gao, et al.
The inability to successfully adapt to stress produces pathological changes that can lead to depression. Molecular hydrogen has anti-oxidative and anti-inflammatory activities and neuroprotective effects. However, the potential role of molecular hydrogen in stress-related disorders is still poorly understood. The present study aims to investigate the effects of hydrogen gas on resilience to stress
Animal StudyHighlighted
MHID-6252416PMID: 280987682017Nutrients
Toshiki Yoneda, Takaaki Tomofuji, Muneyoshi Kunitomo, Daisuke Ekuni, Koichiro Irie, Tetsuji Azuma, et al.
Obesity induces gingival oxidative stress, which is involved in the progression of alveolar bone resorption. The antioxidant effect of hydrogen-rich water may attenuate gingival oxidative stress and prevent alveolar bone resorption in cases of obesity. We examined whether hydrogen-rich water could suppress gingival oxidative stress and alveolar bone resorption in obese rats fed a high-fat diet. Ma
Clinical TrialHighlighted
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
Clinical TrialHighlighted
MHID-7076048PMID: 283210092017Circulation Journal
Yoshinori Katsumata, Koichiro Homma, Masaru Suzuki, Shigeo Okuda
Background: Hydrogen gas inhalation (HI) reduced infarct size and mitigated adverse left ventricular (LV) remodeling in a rat model of acute myocardial infarction (AMI). We designed a prospective, open-label, rater-blinded clinical pilot study in patients experiencing ST-elevated MI (STEMI).
Methods and results: The 20 patients with an initial diagnosis of STEMI were assigned to either an HI grou
Animal StudyIn VitroHighlighted
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 Study
MHID-3418806PMID: 284800272017Medical Gas Research
Wei-ming Yan, Lei Zhang, Tao Chen, Guan-hua Zhao, Pan Long, Jing An, et al.
The therapeutic effects of hydrogen-rich saline (HRS) have been reported for a wide range of diseases mainly via selectively reducing the amount of reactive oxygen species. Oxidative stress plays an important role in the pathogenesis of uveitis and endotoxin-induced uveitis (EIU). In this study, we investigated whether HRS can mitigate EIU in rats. Sprague-Dawley rats were randomly divided into No
Animal StudyHighlighted
MHID-3260346PMID: 288484322017Frontiers in Pharmacology
Jing Chen, Han Zhang, Jiachang Hu, Yulu Gu, Ziyan Shen, Linghan Xu, et al.
Purpose: Acute kidney injury (AKI) is a prominent risk factor for the development of chronic kidney disease (CKD). To date, the related mechanism and effective therapy have not been rigorously explored. The present study aims to investigate the reno- protection of hydrogen-rich saline (HRS) against ischemia/reperfusion (IR)-induced AKI.
Methods: Adult male C57 mice were randomly allocated into th
