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In SilicoHighlighted

Antioxidation activity of molecular hydrogen via protoheme catalysis in vivo: an insight from ab initio calculations

MHID-4619667PMID: 360570012022Journal of Molecular Modeling

Song‑Ae Kim, Yu‑Chol Jong, Myong‑Su Kang, Chol‑Jun Yu

Recently, molecular hydrogen has been found to exhibit antioxidation activity through many clinical experiments, but the mechanism has not been fully understandable at atomic level. In this work, we perform systematic ab initio calculations of protoheme-hydrogen complexes to clarify the antioxidation mechanism of molecular hydrogen. We make molecular modeling of iron–protoporphyrin coordinated by

Clinical TrialHighlighted

A double-blinded, randomized controlled clinical trial of hydrogen inhalation therapy for idiopathic sudden sensorineural hearing loss

MHID-0526057PMID: 365073292022Frontiers in Neuroscience

Masahiro Okada, Hideo Ogawa, Taro Takagi, Eriko Nishihara, Tadashi Yoshida, Jun Hyodo, et al.

Background: Hydrogen (H2) has been reported to be effective in reducing hearing loss due to several causes in animal studies. However, no study has examined the effectiveness of H2 in treating hearing loss in humans. Thus, we investigated whether H2 is effective for the treatment of idiopathic sudden sensorineural hearing loss (ISSNHL). Materials and methods: We conducted a double-blind randomize

Clinical TrialHighlighted

Hydrogen-rich water alleviates inflammation and fatigue in COVID-19: A pilot study

MHID-50217702022European Journal of Inflammation

Aleksandra Milovancev, Jovana Avakumovic, Patrik Drid, Nikola Todorovic, Valdemar Stajer, Sergej M Ostojic

Molecular hydrogen (H2) has been recently put forward as a possible adjunct therapeutics in COVID-19 due to its anti-inflammatory and pulmo-protective effects.1,2 An open-label randomized trial in 44 patients with laboratory-confirmed COVID-19 from seven hospitals in China demonstrated that 3-day hydrogen inhalation resulted in significantly more patients with improved disease severity and reduced dy

Clinical TrialObservational StudyHighlighted

Effects of hydrogen water and psychological treatment in a sample of women with panic disorder: a randomized and controlled clinical trial

MHID-6130347PMID: 357749172022Health Psychology Research

Ana Belén Fernández-Serrano, Francisco José Moya-Faz, Cesar Augusto Giner Alegría, Juan Carlos Fernández Rodríguez, Jose Francisco Soriano Guilabert, Martín del Toro Mellado

Research suggests that inflammation is an important mediator in the pathophysiology of anxiety disorders. In addition, women are more likely to develop an anxiety and depression disorder, in comorbidity with a wide spectrum of diseases related to the immune system. In recent years, hydrogen-rich water has emerged as a promising therapeutic strategy to prevent and intervene in stress-related disord

Observational StudyHighlighted

Effect of Hydrogen Inhalation Therapy on Hearing Loss of Patients With Nasopharyngeal Carcinoma After Radiotherapy

MHID-8463226PMID: 354337312022Frontiers in Medicine

Xiaofeng Kong, Tianyu Lu, You-Yong Lu, Zhinan Yin, Kecheng Xu

Objective: To evaluate the clinical efficacy and safety of hydrogen inhalation in improving hearing loss in patients with long-term survival of nasopharyngeal carcinoma after radiotherapy. Methods: The eustachian tube dysfunction score, pure tone air conduction threshold, bone conduction threshold, the score of tympanogram and otoscope were prospectively observed in patients with deafness after ra

Clinical TrialHighlighted

The effect of a low dose hydrogen-oxygen mixture inhalation in midlife/older adults with hypertension: A randomized, placebo-controlled trial

MHID-1269854PMID: 362782212022Frontiers in Pharmacology

Boyan Liu, Xue Jiang, Yunbo Xie, Xiubin Jia, Jiashuo Zhang, Yazhuo Xue, et al.

Objective: To explore the effect of a low-dose hydrogen–oxygen (H2-O2) mixture inhalation in midlife/older adults with hypertension. Methods: This randomized, placebo-controlled trial included 60 participants with hypertension aged 50–70 years who were randomly divided into Air group (inhaled placebo air) or H2-O2 group [inhaled H2-O2 mixture (66% H2/33% O2)]. Participants in both groups were tre

Clinical TrialAnimal StudyIn VitroHighlighted

A randomized, placebo-controlled clinical trial of hydrogen/oxygen inhalation for non-alcoholic fatty liver disease

MHID-2649268PMID: 357349742022Journal of Cellular and Molecular Medicine

Geru Tao, Guangjie Zhang, Wei Chen, Chao Yang, Yazhuo Xue, Guohua Song, et al.

Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide with increasing incidence consistent with obesity, type 2 diabetes and cardiovascular diseases. No approved medication was currently available for NAFLD treatment. Molecular hydrogen (H2), an anti-oxidative, anti-inflammatory biomedical agent is proved to exhibit therapeutic and preventive effect in variou

Clinical TrialHighlighted

Effects of Alkaline-Reduced Water on Exercise-Induced Oxidative Stress and Fatigue in Young Male Healthy Adults

MHID-82748422022Processes

Mihyun Lee, Ailyn Fadriquela, Jayson M. Antonio, Cheol-Su Kim, Il-Young Cho, Ka-Eun Kim, et al.

Regular physical activity confers health benefits and improves the general quality of life. Recently, alkaline-reduced water (ARW) consumption has garnered increasing attention in the field of sports. ARW effectively inhibits the oxidative stress generated in cells during high-intensity exercises; however, whether it exerts similar effects during exhaustive exercises remains unknown. This study was

Animal StudyHighlighted

Treatment with Hydrogen-Rich Water Improves the Nociceptive and Anxio-Depressive-like Behaviors Associated with Chronic Inflammatory Pain in Mice

MHID-1506377PMID: 363585252022Antioxidants

Santiago Coral-Pérez, Ignacio Martínez-Martel, Maria Martínez-Serrat, Gerard Batallé, Xue Bai, Christie R. A. Leite-Panissi, et al.

Chronic inflammatory pain is manifested in many diseases. The potential use of molecular hydrogen (H2) as a new therapy for neurological disorders has been demonstrated. Recent studies prove its analgesic properties in animals with neuropathic pain, but the possible antinociceptive, antidepressant, and/or anxiolytic actions of H2 during persistent inflammatory pain have not been investigated. Theref

Clinical TrialHighlighted

Biological Effects of Hydrogen Water on Subjects with NAFLD: A Randomized, Placebo-Controlled Trial

MHID-6639794PMID: 362906572022Antioxidants

Branislav Kura, Mária Szántová, Tyler W. LeBaron, Viliam Mojto, Miroslav Barancik, Barbara Szeiffova Bacova, et al.

Non-alcoholic fatty liver disease (NAFLD) is a liver pathology affecting around 25% of the population worldwide. Excess oxidative stress, inflammation and aberrant cellular signaling can lead to this hepatic dysfunction and eventual carcinoma. Molecular hydrogen has been recognized for its selective antioxidant properties and ability to attenuate inflammation and regulate cellular function. We admin

Animal StudyIn VitroEx VivoHighlighted

Photocatalytic glucose depletion and hydrogen generation for diabetic wound healing

MHID-2989698PMID: 361678142022Nature Communications

Shengqiang Chen, Yanxia Zhu, Qingqing Xu, Qi Jiang, Danyang Chen, Ting Chen, et al.

High-glucose microenvironment in the diabetic foot ulcer (DFU) causes excessive glycation and induces chronic inflammation, leading to the difficulty of DFU healing. Hydrogen-rich water bath can promote the healing of DFU in clinic by virtue of the anti-inflammatory effect of hydrogen molecules, but the long-term daily soaking counts against the formation of a scab and cannot change the high-glucose

In VitroHighlighted

Molecular Hydrogen Enhances Proliferation of Cancer Cells That Exhibit Potent Mitochondrial Unfolded Protein Response

MHID-6868466PMID: 352700302022International Journal of Molecular Sciences

Tomoya Hasegawa, Mikako Ito, Satoru Hasegawa, Masaki Teranishi, Koki Takeda, Shuto Negishi, et al.

Molecular hydrogen ameliorates pathological states in a variety of human diseases, animal models, and cell models, but the effects of hydrogen on cancer have been rarely reported. In addition, the molecular mechanisms underlying the effects of hydrogen remain mostly unelucidated. We found that hydrogen enhances proliferation of four out of seven human cancer cell lines (the responders). The prolif

Chemical/Physicochemical Study

Silicon nanoparticles for oral administration of molecular hydrogen

MHID-8624125PMID: 363515042022International Journal of Pharmaceutics

Hennie Marie Johnsen, Werner Filtvedt, Marianne Hiorth, Jo Klaveness

Medical use of hydrogen gas (H2) has been given increasing attention over the past 15 years with numerous clinical trials for a variety of indications. The biological activity of H2 includes antioxidant properties and thereby the ability to neutralize damaging reactive oxygen species (ROS). Administration of hydrogen as a medical gas is limited by the poor water solubility and by the flammability

Animal StudyHighlighted

Development of a novel porcine ischemia/reperfusion model inducing different ischemia times in bilateral kidneys-effects of hydrogen gas inhalation

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

Long‑term and daily use of molecular hydrogen induces reprogramming of liver metabolism in rats by modulating NADP/NADPH redox pathways

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

Hydrogen‑rich saline alleviates early brain injury through inhibition of necroptosis and neuroinflammation via the ROS/HO‑1 signaling pathway after traumatic brain injury

MHID-9667503PMID: 349703492022Experimental and Therapeutic Medicine

Yun Hu, Xiaoyan Feng, Junhui Chen, Yan Wu, Liuyan Shen

Traumatic brain injury (TBI) has been recognized as a serious public health issue and a key contributor to disability and death, with a huge economic burden worldwide. Hydrogen, which is a slight and specific cytotoxic oxygen radical scav‑enger, has been demonstrated to ameliorate early brain injury (EBI) through reactive oxygen species (ROS), oxidative stress injury, apoptosis and necroptosis. Ne

Animal StudyIn VitroHighlighted

Local Treatment of Hydrogen-Rich Saline Promotes Wound Healing In Vivo by Inhibiting Oxidative Stress via Nrf-2/HO-1 Pathway

MHID-5758484PMID: 353001732022Oxidative Medicine and Cellular Longevity

Yujie Li, Chengcheng Shen, Xin Zhou, Jianghe Zhang, Xiaoyue Lai, Yiming Zhang

Wound healing is a complex dynamic process involving a large number of biological events. Excessive oxidative stress is a key factor delaying wound healing. Hydrogen is an antioxidant, anti-inflammatory, and antiapoptotic medical gas with safety, effectiveness, and penetrability. However, the effects of local treatment of hydrogen on wound healing and its potential mechanisms remain unclear. In this

In VitroHighlighted

Quantification of dissolved H2 and continuous monitoring of hydrogen-rich water for haemodialysis applications: An experimental study

MHID-1024639PMID: 350759432022The International Journal of Artificial Organs

Foivos Leonidas Mouzakis, Lal Babu Khadka, Miguel Pereira da Silva, Khosrow Mottaghy

The prevalence of oxidative and inflammatory stress in end-stage renal disease (ESRD) patients has often been associated with chronic haemodialysis therapies. Over the past decades, several reports have shown the potential of hydrogen molecule as an antioxidant in the treatment of various medical conditions in animal models, as well as in pilot studies with human patients. Recently, a hydrogen-enr

In Vitro

Molecular hydrogen suppresses Porphyromonas gingivalis lipopolysaccharide‑induced increases in interleukin‑1 alpha and interleukin‑6 secretion in human gingival cells

MHID-1605109PMID: 345336462022Molecular and Cellular Biochemistry

Yasukazu Saitoh, Nene Yonekura, Daigo Matsuoka, Akira Matsumoto

Periodontitis is defined as a multifactorial polymicrobial infection accompanied by inflammatory reactions. Porphyromonas gingivalis (Pg) is known as a major pathogen in the initiation and progression of periodontitis, and a major virulence factor is Pg lipopolysaccharide (LPS). Molecular hydrogen (H2) has been reported to act as a gaseous antioxidant, which suppresses periodontitis progression by

Animal StudyHighlighted

Different effects of hydrogen‑rich water intake and hydrogen gas inhalation on gut microbiome and plasma metabolites of rats in health status

MHID-9053506PMID: 355085712022Scientific Reports

Fei Xie, Xue Jiang, Yang Yi, Zi‑Jia Liu, Chen Ma, Jin He, et al.

The potential for preventive and therapeutic applications of H2 have now been confirmed in various disease. However, the effects of H2 on health status have not been fully elucidated. Our previous study reported changes in the body weight and 13 serum biochemical parameters during the six-month hydrogen intervention. To obtain a more comprehensive understanding of the effects of long-term hydrogen