Scientific Articles

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Showing 21–31 of 31 articles

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 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

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

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 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

In VitroHighlighted

Heme oxygenase-1 mediates the anti-inflammatory effect of molecular hydrogen in LPS-stimulated RAW 264.7 macrophages

MHID-1519950PMID: 241487942013International Journal of Surgery

Hong-Guang Chen, Ke-Liang Xie, Huan-Zhi Han, Wei-Na Wang, Da-Quan Liu, Guo-Lin Wang, et al.

Background: Molecular hydrogen (H2) as a new medical gas has an anti-inflammatory effect. In the present study, we investigated whether heme oxygenase-1 (HO-1) contributes to the anti-inflammatory effect of H2 in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Methods: RAW 264.7 macrophages were stimulated by LPS (1 mg/mL) with presence or absence of different concentrations of H2. Cell

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

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.