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Clinical Trial

Sixty-minute inhalation of molecular hydrogen decreases blood oxygen saturation but does not alter autonomic cardiac regulation at rest in healthy females: A randomized, double-blind, placebo-controlled crossover study

MHID-7502024PMID: 414014412024Canadian Journal of Physiology and Pharmacology

Pavel Grepl, Jakub Krejčí, Andrew McKune, Michal Botek

Molecular hydrogen has gained attention for its potential antioxidant, anti-inflammatory, and ergogenic effects. However, its impact on blood oxygen saturation and autonomic cardiac regulation under resting conditions remains unclear. This randomized, double-blind, placebo-controlled crossover study investigated the effects of a 60-minute molecular hydrogen inhalation on oxygen saturation and hear

Clinical Trial

Inhalation of Hydrogen-rich Gas before Acute Exercise Alleviates Exercise Fatigue: A Randomized Crossover Study

MHID-0740382PMID: 386986242024International Journal of Sports Medicine

Gengxin Dong, Jianxin Wu, Yinglu Hong, Qian Li, Meng Liu, Guole Jiang, et al.

Hydrogen, as an antioxidant, may have the potential to mitigate fatigue and improve selected oxidative stress markers induced by strenuous exercise. This study focused on a previously unexplored approach involving pre-exercise inhalation of hydrogen-rich gas (HRG). Twenty-four healthy adult men first completed pre-laboratories to determine maximum cycling power (Wmax) and maximum cycling time (Tma

Clinical TrialHighlighted

Hydrogen gas inhalation prior to high-intensity training reduces attenuation of nitric oxide bioavailability in male rugby players

MHID-9198954PMID: 397039112024PeerJ

Yuqi Zhao, Chaoqun Li, Shi Zhou, Zhiguang Xu, Xin Huang, Li Wen

Background: Inhalation of hydrogen gas (H2) as an antioxidant supplement may alleviate exercise-induced oxidative damage and protect post-exercise hydrogen peroxide signaling, which may help mediate beneficial exercise adaptation. The aims of this study were to determine the effects of H2 inhalation on plasma nitric oxide (NO) level and its synthesis precursor in professional athletes. Methods: A

Animal StudyHighlighted

Hydrogen Gas Inhalation Alleviates Airway Inflammation and Oxidative Stress on Ovalbumin-Induced Asthmatic BALB/c Mouse Model

MHID-8252742PMID: 395944702024Antioxidants

Wenjing He, Md. Habibur Rahman, Johny Bajgai, Sofian Abdul-Nasir, Chaodeng Mo, Hui Ma, et al.

Airway inflammatory diseases, such as asthma, are a global public health concern owing to their chronic inflammatory effects on the respiratory mucosa. Molecular hydrogen (H2) has recently been recognized for its antioxidant and anti-inflammatory properties. In this study, we examined the therapeutic potential of H2 in airway inflammation using an ovalbumin (OVA)-induced BALB/c mouse model of alle

Animal Study

Molecular hydrogen attenuates sepsis-induced cardiomyopathy in mice by promoting autophagy

MHID-5679511PMID: 383958002024BMC Anesthesiology

Yan Cui, Yingning Li, Shuqi Meng, Yu Song, Keliang Xie

Background: Approximately 40 to 60% of patients with sepsis develop sepsis-induced cardiomyopathy (SIC), which is associated with a substantial increase in mortality. We have found that molecular hydrogen (H2) inhalation improved the survival rate and cardiac injury in septic mice. However, the mechanism remains unclear. This study aimed to explore the regulatory mechanism by which hydrogen modula

Observational Study

Molecular Hydrogen Therapy in Aneurysmal SAH With RA and Newly-diagnosed SLE, Complicated With Acute Ischemic Infarction: A Case Report of Improved Immune Markers Including Tr1 Cells, Breg Cells and TIM3 Expression on Tc Cells

MHID-5046710PMID: 394774202024In Vivo

Jing-Yuan Chen, Jeng-Wei Lu, Shao-Wei Feng, Yi-Jung Ho, Shan-Wen Lui, Ting-Yu Hsieh, et al.

Background/Aim: Most nontraumatic subarachnoid hemorrhages (SAHs) are caused by ruptured saccular aneurysms, often resulting in a devastating clinical event characterized by high mortality and significant morbidity among survivors. Numerous studies have confirmed the neuroprotective effects of the molecular hydrogen due to its unique biological properties. Case Report: We present the case of a 44

Clinical TrialHighlighted

Effects of hydrogen-rich water on blood uric acid in patients with hyperuricemia: A randomized placebo-controlled trial

MHID-1498378PMID: 392581912024Heliyon

Fenglin Wu, Jun Ma, Junli Xue, Xue Jiang, Jinyu Liu, Jiashuo Zhang, et al.

Background: Consumption of hydrogen-rich water (HRW) has been shown to have anti- inflammatory and metabolic-modulatory benefits. Objective: A randomized, placebo-controlled trial was conducted to assess the potential blood uric acid-lowering effects of HRW consumption with different doses (low and high doses) and duration (4 and 8 weeks) in patients with hyperuricemia. Methods: The Placebo grou

Clinical TrialAnimal Study

Molecular Hydrogen for Outpatients with COVID-19 (Hydro-COVID): A Phase 3 Randomised, Triple-Blinded, Pragmatic, Placebo-Controlled, Multicentre Trial

MHID-3281965PMID: 391245752024Journal of Clinical Medicine

Yoann Gaboreau, Aleksandra Milovanˇcev, Carole Rolland, Claire Eychenne, Jean-Pierre Alcaraz, Cordelia Ihl, et al.

Background. Due to its antioxidant, anti-inflammatory, anti-apoptosis, and anti-fatigue properties, molecular hydrogen (H2) is potentially a novel therapeutic nutrient for patients with coronavirus acute disease 2019 (COVID-19). We determined the efficacy and safety profile of hydrogen-rich water (HRW) to reduce the risk of COVID-19 progression. Methods: We also conducted a phase 3, triple-blind,

Animal StudyHighlighted

Molecular Hydrogen Reduces Mean and Systolic Blood Pressure in Various Forms of Hypertension, as Well as Inflammatory Processes in Lung Tissue, in Wistar Rats

MHID-13886872024Journal of Evolutionary Biochemistry and Physiology

M. M. Artemieva, T. A. Kuropatkina, V. V. Shishkina, D. V. Serebryanaya, D. A. Adasheva, O. S. Medvedev, et al.

Molecular hydrogen demonstrates antioxidant and anti-inflammatory properties. It has been shown to have a protective effect in several cardiovascular diseases. The aim of this work was to investigate the effect of breathing atmospheric air containing 4% hydrogen on the degree of development of monocrotaline-induced pulmonary hypertension and associated lung tissue inflammation, as well as the degr

Literature Review

Effects of Molecular Hydrogen in the Pathophysiology and Management of Cardiovascular and Metabolic Diseases

MHID-6342582PMID: 390776462024Reviews in Cardiovascular Medicine

Ram B. Singh, Zuzana Sumbalova, Ghizal Fatima, Viliam Mojto, Jan Fedacko, Alex Tarnava, et al.

Diet and lifestyle choices, notably the Western-type diet, are implicated in oxidative stress and inflammation, factors that elevate the risk of cardiovascular diseases (CVDs) and type 2 diabetes mellitus (T2DM). In contrast, the Mediterranean of diet, rich in antioxidants, appears to have protective effects against these risks. This article highlights the dual role of diet in generating molecular

Animal StudyHighlighted

High concentration hydrogen attenuates sepsis-induced acute kidney injury by promoting mitochondrial biogenesis and fusion

MHID-3793036PMID: 394330132024International Immunopharmacology

Shuaijie Pei, Lina Zheng, Zhigang Tian, Shuqi Meng, Zhiwei Wang, Yan Fan, et al.

Sepsis is a major cause of mortality among critical patients. Acute kidney injury (AKI) is the common complication in patients with sepsis, characterized by rapid deterioration of renal function. The purpose of this study is to assess the impact of inhaling high concentration hydrogen on septic mice with AKI and to examine the involvement of mitochondria in this process. High concentration hydroge

Animal StudyHighlighted

Hydrogen Gas Inhalation Treatment for Coronary Artery Lesions in a Kawasaki Disease Mouse Model

MHID-3732487PMID: 390635512024Life

Wen-Ling Shih, Tsung-Ming Yeh, Kuang-Den Chen, Steve Leu, Shih-Feng Liu, Ying-Hsien Huang, et al.

Background: Kawasaki disease (KD) is a syndrome primarily affecting young children, typically under the age of five, and is characterized by the development of acute vasculitis. Through extensive research conducted on both murine and human subjects, it has been demonstrated that heightened levels of reactive oxygen species (ROS) play a pivotal role in the development of KD, especial coronary arter

Animal StudyHighlighted

The Combination of Molecular Hydrogen and Heme Oxygenase 1 Effectively Inhibits Neuropathy Caused by Paclitaxel in Mice

MHID-8765977PMID: 390619242024Antioxidants

Ignacio Martínez-Martel, Xue Bai, Rebecca Kordikowski, Christie R. A. Leite-Panissi, Olga Pol

Chemotherapy-provoked peripheral neuropathy and its associated affective disorders are important adverse effects in cancer patients, and its treatment is not completely resolved. A recent study reveals a positive interaction between molecular hydrogen (H2) and a heme oxygenase (HO-1) enzyme inducer, cobalt protoporphyrin IX (CoPP), in the inhibition of neuropathic pain provoked by nerve injury. Ne

Animal StudyHighlighted

Effect of Orally Ingested Water Containing H2-Filled Ultrafine Bubbles (UFBs) on Ethanol-Induced Oxidative Stress in Rats

MHID-9892485PMID: 388393612024Biological and Pharmaceutical Bulletin

Risako Morishita, Ayaka Onishi, Maresuke Oya, Hirotsugu Karashima, Misato Mori, Yuka Kawatani, et al.

Ultrafine bubbles (UFBs), which are bubbles with diameters of less than 1 µm, are widely recognized for their ability to exist stably in liquid as a result of the effects of Brownian motion. In this study, we focused on hydrogen, known for its antioxidant potential, and explored the function of H2-filled UFBs, which encapsulate hydrogen, to determine their potential use as oral carriers for the de

Literature Review

New Possibilities of the Prevention and Treatment of Cardiovascular Pathologies. The Potential of Molecular Hydrogen in the Reduction of Oxidative Stress and its Consequences

MHID-5103861PMID: 398081702024Physiological Research

Jan Slezak, Tatiana Ravingerova, Branislav Kura

Disproportion between reactive oxygen species (ROS) production and the body's antioxidant system can cause oxidative stress, which is considered a common denominator in various pathological conditions, including cardiovascular diseases, aging, and cognitive disorders. The generation of free radicals, which occurs through partial reduction of oxygen, can quickly overwhelm the endogenous antioxidant

Animal Study

Effect of molecular hydrogen treatment on Sepsis-Associated encephalopathy in mice based on gut microbiota

MHID-6003573PMID: 364684152023CNS Neuroscience & Therapeutics

Qingqing Han, Yuanyuan Bai, Chunjing Zhou, Beibei Dong, Yingning Li, Ning Luo, et al.

Introduction: In our experiments, male wild-type mice were randomly divided into four groups: the sham, SAE, SAE + 2% hydrogen gas inhalation (H2), and SAE + hydrogen-rich water (HW) groups. The feces of the mice were collected for 16 S rDNA analysis 24 h after the models were established, and the serum and brain tissue of the mice were collected for nontargeted metabolomics analysis. Aim: Destru

Human StudyLiterature ReviewAnimal Study

Hydrogen therapy as a potential therapeutic intervention in heart disease: from the past evidence to future application

MHID-3562676PMID: 372693852023Cellular and Molecular Life Sciences

Kwannapas Saengsin, Rekwan Sittiwangkul, Siriporn C. Chattipakorn, Nipon Chattipakorn

Cardiovascular disease is the leading cause of mortality worldwide. Excessive oxidative stress and inflammation play an important role in the development and progression of cardiovascular disease. Molecular hydrogen, a small colorless and odorless molecule, is considered harmless in daily life when its concentration is below 4% at room temperature. Owing to the small size of the hydrogen molecule,

Animal Study

Molecular Hydrogen Mediates Neurorestorative Effects After Stroke in Diabetic Rats: the TLR4/NF‑κB Inflammatory Pathway

MHID-0385819PMID: 358952452023Journal of Neuroimmune Pharmacology

Wan‑Chao Yang, Ting‑ting Li, Qiang Wan, Xin Zhang, Li‑Ying Sun, Yu‑Rong Zhang, et al.

Diabetes is an independent risk factor for stroke and amplifies inflammation. Diabetic stroke is associated with a higher risk of death and worse neural function. The identification of effective anti-inflammatory molecules with translational advantages is particularly important to promote perioperative neurorestorative effects. Applying molecular hydrogen, we measured blood glucose levels before a

Observational StudyHighlighted

Evaluation of the safety and potential lipid-lowering effects of oral hydrogen-rich coral calcium (HRCC) capsules in patients with metabolic syndrome: a prospective case series study

MHID-0293642PMID: 375214102023Frontiers in Nutrition

Szu-Han Chiu, Frank L. Douglas, Jia-Ru Chung, Kuang-Yih Wang, Chao-Fang Chu, Hsia-Yun Chou, et al.

Background: Metabolic syndrome is characterized by a cluster-like occurrence of conditions such as hypertension, hyperglycaemia, elevated low-density lipoprotein (LDL) cholesterol or triglycerides (TG) and high visceral fat. Metabolic syndrome is linked to the build-up of plaque within the artery, which leads to disorders of the circulatory, nervous and immune systems. A variety of treatments targ

Clinical TrialHighlighted

Hydrogen-Rich Water Ameliorates Metabolic Disorder via Modifying Gut Microbiota in Impaired Fasting Glucose Patients: A Randomized Controlled Study

MHID-6939973PMID: 373719752023Antioxidants

Bing Liang, Le Shi, Dongyue Du, Hua Li, Ning Yi, Yue Xi, et al.

Objective: Molecular hydrogen (H2) exhibits antioxidant, anti-inflammatory and anti-apoptotic effects, and has shown benefits in glucose and lipid metabolism in certain animal metabolic disorder models. However, the potential benefits of H2 treatment in individuals with impaired fasting glucose (IFG) has seldom been studied. This randomized controlled study (RCT) aims to investigate the effects of hy