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Showing 21–39 of 39 articles

In VitroHighlighted

Response of Escherichia coli to hydrogen nanobubbles: an in vitro evaluation using synchrotron infrared spectroscopy

MHID-0456102PMID: 347832272021Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)

Jinfang LU, Jin ZHENG, Yadi WANG, Jie CHENG, Xueling LI, Jun HU, et al.

Hydrogen (H2)-rich water, an apparent source of molecular H2, is an emerging functional drink with many purported benefits for human health (Yang et al., 2020; Ostojic, 2021). The preventive and therapeutic effects of H2 on various pathological processes have been intensively investigated in numerous clinical trials; it is commonly believed that the beneficial effects are mainly attributed to its

In VitroHighlighted

Molecular hydrogen protects against oxidative stress‑induced RAW 264.7 macrophage cells through the activation of Nrf2 and inhibition of MAPK signaling pathway

MHID-35801392020Molecular & Cellular Toxicology

Rahima Begum, Cheol‑Su Kim, Ailyn Fadriquela, Johny Bajgai, Xingyu Jing, Dong‑Heui Kim, et al.

Background: Oxidative stress is involved in the development of many inflammatory, metabolic and aging diseases. Objective: In this study we investigated, the protective effects of H2 on RAW 264.7 macrophage cell against LPS-and H2O2-induced oxidative stress by the inhibition of MAPK pathway and also activate the Nrf2 pathway. Results: Our results showed H2 increased the macrophage cell prolifera

In VitroEx VivoHighlighted

Hydrogen evolution and absorption phenomena in plasma membrane of higher plants

MHID-98806872020bioRxiv

Xin Zhang, Zhao Zhang, Zehua Su, Qinghui Zhao, Tyler W. LeBaron, Qinjian Li, et al.

Molecular hydrogen (H2) exhibits a wide breadth of botanical effects especially in improving the resistance to abiotic stress. However, the primary target is not clear. Bidirectional hydrogenases have been well studied in microbes and alga, but there is a paucity of research in higher plants. Here, we used real-time spectrophotometry, gas chromatography and H2 sensor to detect the H2-evolving and

In VitroHighlighted

Molecular Hydrogen Protects Human Melanocytes from Oxidative Stress by Activating Nrf2 Signaling

MHID-7135279PMID: 345586532020Journal of Investigative Dermatology

Wei Fang, Luyan Tang, Guizhen Wang, Jinran Lin, Wanqing Liao, Weihua Pan, et al.

Oxidative stress is proven to be critical for the initiation and progression of vitiligo. Molecular hydrogen (H2) possesses potent antioxidant activity and has been shown to protect against various oxidative stresserelated diseases. In this study, we first investigated the effects and mechanisms of H2 in human melanocytes damaged by hydrogen peroxide. We initially found that H2 reduced intracellula

In VitroIn SilicoHighlighted

Quantification of hydrogen production by intestinal bacteria that are specifically dysregulated in Parkinson’s disease

MHID-67149392018PLoS ONE

Anzu Suzuki, Mikako Ito, Tomonori Hamaguchi, Hiroshi Mori, Yuka Takeda, Ryuko Baba, et al.

Oral administration of hydrogen water ameliorates Parkinson’s disease (PD) in rats, mice, and humans. We previously reported that the number of putative hydrogen-producing bacte- ria in intestinal microbiota is low in PD compared to controls. We also reported that the amount of hydrogen produced by ingestion of lactulose is low in PD patients. The decreased hydrogen production by intestinal microb

In VitroHighlighted

Therapeutic efficacy of hydrogen‑rich saline alone and in combination with PI3K inhibitor in non‑small cell lung cancer

MHID-1525156PMID: 299011392018Molecular Medicine Reports

YU JIANG, GANG LIU, LI ZHANG, SHENG CHENG, CHUN LUO, YANG LIAO, et al.

The aim of the present study was to investigate the effects of combination therapy of LY294002, a specific inhibitor of phosphatidylinositol 3‑kinase  (PI3K), with hydrogen‑rich saline on the proliferation and apoptosis of the non‑small cell lung cancer (NSCLC) A549 cell line and the mechanisms underpinning this. Excessive production of reactive oxygen species (ROS) may induce DNA mutations, DNA d

Ex VivoHighlighted

Molecular hydrogen potentiates beneficial anti-infarct effect of hypoxic postconditioning in isolated rat hearts: Novel cardioprotective intervention

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

Hydrogen gas protects IP3Rs by reducing disulfide bridges in human keratinocytes under oxidative stress

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

In Vitro

Molecular hydrogen protects against oxidative stress-induced SH-SY5Y neuroblastoma cell death through the process of mitohormesis

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

Animal StudyIn VitroHighlighted

Hydrogen-rich saline attenuates isoflurane-induced caspase-3 activation and cognitive impairment via inhibition of isoflurane-induced oxidative stress, mitochondrial dysfunction, and reduction in ATP levels

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

In VitroHighlighted

Molecular hydrogen inhibits lipopolysaccharide-triggered NLRP3 inflammasome activation in macrophages by targeting the mitochondrial reactive oxygen species

MHID-1084413PMID: 264880872016Biochimica et Biophysica Acta - Molecular Cell Research

Jian-Dong Ren, Xiao-Bo Wu, Rui Jiang, Da-Peng Hao, Yi Liu

The NLRP3 inflammasome, an intracellular multi-protein complex controlling the maturation of cytokine interleukin-1β, plays an important role in lipopolysaccharide (LPS)-induced inflammatory cascades. Recently, the production of mitochondrial reactive oxygen species (mtROS) in macrophages stimulated with LPS has been suggested to act as a trigger during the process of NLRP3 inflammasome activation

In VitroChemical/Physicochemical StudyHighlighted

Molecular hydrogen regulates gene expression by modifying the free radical chain reaction-dependent generation of oxidized phospholipid mediators

MHID-6183029PMID: 267392572016Scientific Reports

Katsuya Iuchi, Akemi Imoto, Naomi Kamimura, Kiyomi Nishimaki, Harumi Ichimiya, Takashi Yokota, et al.

We previously showed that H2 acts as a novel antioxidant to protect cells against oxidative stress. Subsequently, numerous studies have indicated the potential applications of H2 in therapeutic and preventive medicine. Moreover, H2 regulates various signal transduction pathways and the expression of many genes. However, the primary targets of H2 in the signal transduction pathways are unknown. Her

In VitroHighlighted

Molecular hydrogen attenuates fatty acid uptake and lipid accumulation through downregulating CD36 expression in HepG2 cells

MHID-9934004PMID: 234482062013Medical Gas Research

Akio Iio, Mikako Ito, Tomohiro Itoh, Riyako Terazawa, Yasunori Fujita, Yoshinori Nozawa, et al.

Background: There is accumulating evidence that obesity is closely associated with an impaired free fatty acid metabolism as well as with insulin resistance and inflammation. Excessive fatty acid uptake mediated by fatty acid translocase CD36 plays an important role in hepatic steatosis. Molecular hydrogen has been shown to attenuate oxidative stress and improve lipid, glucose and energy metabolis

Animal StudyIn VitroHighlighted

Hydrogen-rich saline protects immunocytes from radiation-induced apoptosis

MHID-89507332012Medical Science Monitor

Yanyong Yang, Bailong Li, Cong Liu, Yunhai Chuai, Jixiao Lei, Fu Gao, et al.

Background: Radiation often causes depletion of immunocytes in tissues and blood, which results in immuno suppression. Molecular hydrogen (H2) has been shown in recent studies to have potential as a safe and effective radioprotective agent through scavenging free radicals. This study was designed to test the hypothesis that H2 could protect immunocytes from ionizing radiation (IR). Material/Metho

Human StudyLiterature ReviewAnimal StudyIn VitroHighlighted

The 2011 Medical Molecular Hydrogen Symposium: An inaugural symposium of the journal Medical Gas Research

MHID-1756030PMID: 221460822011Medical Gas Research

Shigeo Ohta, Atsunori Nakao, Kinji Ohno

This report summarizes a brief description/history of the Hydrogen Research Meetings as well as key presentations/oral abstracts delivered in the most recent symposium. Additionally, we introduced 38 diseases and physiological states for which hydrogen exhibits beneficial effects.

In VitroHighlighted

Hydrogen-rich PBS protects cultured human cells from ionizing radiation-induced cellular damage

MHID-98352102010Nuclear Technology & Radiation Protection

Liren Qian, Bailong Li, Fei CAO, Yuecheng Huang, Shulin Liu, Jianming Cai, et al.

Hydroxyl radicals play an important role in ionizing radiation-induced cellular damage, while hydrogen can selectively reduce hydroxyl radicals in vitro. This study was designed to test the hypothesis that hydrogen-rich PBS may be an effective radioprotective agent in vitro. Com pared to cells pretreated with out hydrogen, we demonstrated that treating cells with hydrogen-rich PBS be fore irradiat

Animal StudyIn VitroHighlighted

Radioprotective effect of hydrogen in cultured cells and mice

MHID-1312487PMID: 332312662010Free Radical Research

Liren Qian, Fei CAO, Jianguo Cui, Yuecheng Huang, Xiaojian Zhou, Shulin Liu, et al.

It has been demonstrated that hydrogen can selectively reduce hydroxyl and peroxynitrite in vitro. Since most of the ionizing radiation-induced cellular damage is caused by hydroxyl radicals, this study was designed to test the hypoth- esis that hydrogen may be an effective radioprotective agent. This paper demonstrates that treating cells with hydrogen before irradiation could signifi cantly inhib

In VitroHighlighted

Antitumor effects of nano-bubble hydrogen-dissolved water are enhanced by coexistent platinum colloid and the combined hyperthermia with apoptosis-like cell death

MHID-9110946PMID: 210427402010Oncology Reports

Ryoko Asada, KATSUHIRO KAGEYAMA, HIROSHI TANAKA, HISAKAZU MATSUI, MASATSUGU KIMURA, Yasukazu Saitoh, et al.

In order to erase reactive oxygen species (ROS) related with the proliferation of tumor cells by reducing activity of hydrogen, we developed functional water containing nano-bubbles (diameters: <900 nm for 71%/ population) hydrogen of 1.1-1.5 ppm (the theoretical maximum: 1.6 ppm) with a reducing ability (an oxidation- reduction potential -650 mV, normal water: +100-200 mV) using a microporous-fil

Animal StudyIn VitroHighlighted

Hydrogen acts as a therapeutic antioxidant by selectively reducing cytotoxic oxygen radicals

MHID-7700658PMID: 174860892007Nature Medicine

Ikuroh Ohsawa, Masahiro Ishikawa, Kumiko Takahashi, Megumi Watanabe, Kiyomi Nishimaki, Kumi Yamagata, et al.

Acute oxidative stress induced by ischemia-reperfusion or inflammation causes serious damage to tissues, and persistent oxidative stress is accepted as one of the causes of many common diseases including cancer. We show here that hydrogen (H2) has potential as an antioxidant in preventive and therapeutic applications. We induced acute oxidative stress in cultured cells by three independent methods.