Evaluation of in-office tooth whitening treatment with violet LED: protocol for a randomised controlled clinical trial by Lara Jansiski Motta, Anna Carolina Ratto Tempestini Horliana, Sandra Kalil Bussadori, Maria Fernanda Setúbal Destro Rodrigues, Ana Eliza Castanho Garrini dos Santos, Marcelo Mendes Pinto, Dácio Antonio Pantano Junior, Aldo Brugnera Jr, Fátima Antonia Aparecida Zanin

“…Introduction In-office tooth whitening treatment using violet light emited diode (LED) (405 nm) is a novel bleaching method that causes less sensitivity while offering the same effectiveness as the gold standard (35% hydrogen peroxide, H2O2). This study describes a protocol for the first randomised controlled clinical trial to compare the effects of the two methods.Methods and analysis Eighty patients will be divided into four groups: G1 violet LED; G2 violet LED +35% carbamide peroxide; G3 35% H2O2 and G4 violet LED +gingivoplasty. …”
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Allelopathic effects on vegetative propagation, physiological-biochemical characteristic of Alternanthera philoxeroides (Mart.) Griseb from Cinnamomum camphora (L.) Presl. by Xiaxia Wang, Haixia Wang, Yanlei Zhang, Yan Li, Qi Jia, Ziyi Wang, Juan Sun

“…Physiological-biochemical analyses of roots indicated that the two allelochemicals promoted the accumulation of hydrogen peroxide and MDA, disrupting the balance of antioxidant enzyme systems. …”
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Multivalent Neuroprotective Activity of <i>Elettaria cardamomum</i> (Cardamom) and <i>Foeniculum vulgare</i> (Fennel) in H₂O₂-Induced Oxidative Stress in SH-S... by Himadri Sharma, Hyewon Yang, Niti Sharma, Seong Soo A. An

“…Cell-based assays were performed using SH-SY5Y cells. Hydrogen peroxide was used for the induction of oxidative stress, and evaluation was done based on neuroprotection, reduced reactive oxygen species, and restoration of mitochondrial membrane potential (MMP). …”
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Adipose-Derived Mesenchymal Stem Cells Migrate and Rescue RPE in the Setting of Oxidative Stress by Aya Barzelay, Shira Weisthal Algor, Anat Niztan, Sebastian Katz, Moshe Benhamou, Itay Nakdimon, Noam Azmon, Sandy Gozlan, Daphna Mezad-Koursh, Meira Neudorfer, Michaella Goldstein, Benjamin Meilik, Anat Loewenstein, Adiel Barak

“…ASCs exhibited enhanced migration when exposed to conditioned medium of oxidative stressed RPE cells obtained by hydrogen peroxide. Migration-related axis SDF-1/CXCR4 was studied, and upregulation of SDF-1 in stressed RPE and of CXCR4 in ASCs was detected. …”
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Corneal protective effects of a new ophthalmic formulation based on vitamin B12 and sodium hyaluronate by Francesca Lazzara, Federica Conti, Grazia Maugeri, Velia D’Agata, Velia D’Agata, Ludovica Sotera, Claudio Bucolo, Claudio Bucolo

“…Two different in vitro models of corneal damage were carried out in corneal epithelial cells exposed to hydrogen peroxide (H2O2, 1 mM) or UVB (20 mJ/cm2). Cell viability, cytotoxicity, ROS production, and mRNA expression of pro-inflammatory cytokines (TNF-α and IL-1β) were assessed by MTT, LDH, 2′,7′–dichlorofluorescein diacetate (DCFDA) assays and Real-time PCR, respectively. …”
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Composition analysis of acid hydrolysates from Cucurbita moschata Duch. polysaccharides and their effect on oxidative stress resistance of Caenorhabditis elegans by Wen Jiang, Yakun Zhang, Jiangying Zeng, Jing Yao, Aoxue Lu, Zhiyu Fang, Ge Wang, Weimin Wang, Yongjun Zhang

“…PPe-S-2 could significantly extend the survival time of C. elegans (P < 0.01), which were stress-induced by hydrogen peroxide and methyl viologen. PPe-S-2 was a heteropolys accharide composed of glucose, arabinose, rhamnose and galactose with the molar ratio of 1.00:0.03:0.02:0.14. …”
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Oxidative stress in critically ill neonatal foals by David Wong, Dipak Kumar Sahoo, Cosette Faivre, Jamie Kopper, Katie Dersh, Theresa Beachler, Melissa Esser

“…Reactive oxygen species (hydrogen peroxide [H2O2]), biomarkers of oxidative injury (malondialdehyde [MDA], protein carbonyl), and antioxidants (superoxide dismutase [SOD], catalase [CAT], glutathione, and glutathione reductase [GR] and peroxidase [GPx]) were measured from foals at admission. …”
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Trade-Off Between Enzymatic Antioxidant Defense and Accumulation of Organic Metabolite Affects Salt Tolerance of White Clover Associated with Redox, Water, and Metabolic Homeostase... by Min Zhou, Yuting Wu, Yuchen Yang, Yan Yuan, Junnan Lin, Long Lin, Zhou Li

“…Results demonstrated that salt stress significantly induced chlorophyll loss, water imbalance, and accumulations of malondialdehyde (MDA), hydrogen peroxide (H₂O₂), and superoxide anion (O₂<sup>.…”
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The Role of Tetrahydrobiopterin and Dihydrobiopterin in Ischemia/Reperfusion Injury When Given at Reperfusion by Qian Chen, Elizabeth Eun Jung Kim, Katrina Elio, Christopher Zambrano, Samuel Krass, Jane Chun-wen Teng, Helen Kay, Kerry-Anne Perkins, Sailesh Pershad, Sloane McGraw, Jeffrey Emrich, Jovan S. Adams, Lindon H. Young

“…Tetrahydrobiopterin (BH4) is an essential cofactor of endothelial NO synthase (eNOS) to produce NO, whereas dihydrobiopterin (BH2) can shift the eNOS product profile from NO to superoxide, which is further converted to hydrogen peroxide (H2O2) and cause I/R injury. The effects of BH4 and BH2 on oxidative stress and postreperfused cardiac functions were examined in ex vivo myocardial and in vivo femoral I (20 min)/R (45 min) models. …”
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Assessing the Applicability of Photocatalytic-Concrete Blocks in Reducing the Concentration of Ambient NO2 of Chandigarh, India, Using Box–Behnken Response Surface Design Technique... by Neeru Singla, Sandeep Singla, Parteek Singh Thind, Sandeep Singh, Jasgurpreet Singh Chohan, Raman Kumar, Shubham Sharma, Somnath Chattopadhyaya, Shashi Prakash Dwivedi, Ambuj Saxena, Alibek Issakhov, Nima Khalilpoor

“…Subsequently, it was revealed that hydrogen peroxide-based treatment of photocatalytic-concrete blocks could completely regenerate its treatment efficiency. …”
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Dynamic physiology and transcriptomics revealed the alleviation effect of melatonin on Reaumuria trigyna under continuous alkaline salt stress by Xuebo Li, Lei Wang, Heyi Wang, Rui Hao, Lunkai Gao, Hongbo Cui, Hai Wu, Xiaodong Wu, Tong Qiao, Weijie Bai, Liming Zhang

“…The key mechanism identified involves melatonin’s ability to increase antioxidant enzyme activity, reduce reactive oxygen species and hydrogen peroxide levels, and alter gene expression patterns.DiscussionTranscriptomic analysis revealed significant changes in gene expression, particularly in photosynthetic signal transduction, phytohormone signaling, MAPK signaling, and the peroxisome pathway, which are crucial for the plant’s response to alkaline salt stress. …”
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Effect of bacteriocin-producing Pediococcus acidilactici strains on the immune system and intestinal flora of normal mice by Yiteng Qiao, Zhichang Qiu, Fengwei Tian, Leilei Yu, Jianxin Zhao, Hao Zhang, Qixiao Zhai, Wei Chen

“…The produced components were identified as bacteriocins through protease treatment, pH adjustment and hydrogen peroxide treatment. Bacteriocin-producing and non-bacteriocin-producing P. acidilactici strains (P. acidilactici CCFM28, CCFM18 and NT17-3) caused significant changes in serum immune factors and intestinal flora of normal mice. …”
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Visible light photocatalytic degradation of tetracycline using copper ferrite nanoparticles synthesized via Glycine-Assisted combustion method by A. Dinesh, K. Radhakrishnan, V. Renuga, Rajendra P. Patil, Suriyaprakash Rajadesingu, S. Suthakaran, L. Guganathan, Manikandan Ayyar, Madhappan Santhamoorthy, Lalitha Gnanasekaran, Munawar Iqbal

“…The degradation efficiency reached a maximum value of 95.8 % for a 150 min irradiation under the optimum condition of the photocatalytic activity was further raised by 25 % by the addition of hydrogen peroxide (H2O2). The CuFe2O4 NPs had rather high recyclability after the photocatalytic process, they had 90 % of their initial activity, which was tested after the fifth run. …”
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Induced Inflammatory and Oxidative Markers in Cerebral Microvasculature by Mentally Depressive Stress by Yuequan Zhu, Yazeed Haddad, Ho Jun Yun, Xiaokun Geng, Yuchuan Ding

“…Reactive oxygen species (ROS), hydrogen peroxide (H2O2), and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (NOX) activities were quantified by ELISA to study the oxidative profile of the brain vessels (n=10/group). …”
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Responses of Phospholipase D and Antioxidant System to Mechanical Wounding in Postharvest Banana Fruits by Li Li, Xuemei He, Jian Sun, Changbao Li, Dongning Ling, Jinfeng Sheng, Fengjin Zheng, Guoming Liu, Jiemin Li, Yayuan Tang, Ping Yi, Ming Xin, Zhichun Li, Zhugui Zhou

“…The concentrations of reactive oxygen species (ROS) such as superoxide anion (O2•-) and hydrogen peroxide (H2O2) in fruits increased under mechanical wounding. …”
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Roles of the rpoEc-chrR-chrA operon in superoxide tolerance and β-lactam susceptibility of Stenotrophomonas maltophilia by Ren-Hsuan Ku, Hsu-Feng Lu, Li-Hua Li, Li-Hua Li, Ting-Yu Yeh, Yi-Tsung Lin, Yi-Tsung Lin, Tsuey-Ching Yang

“…Inactivation of chrR upregulated the expression of rpoEc-chrR-chrA operon in an σEc- and ChrA-dependent manner. σEc activation contributed to superoxide tolerance and increased β-lactam susceptibility but did not affect the tolerance to singlet oxygen and hydrogen peroxide. Transcriptome analysis revealed that expression of the nine-gene cluster, smlt2375-smlt2367, was significantly upregulated in KJΔChrR and reverted to the wild-type level in KJΔChrRΔRpoEc. smlt2375-smlt2367 cluster was located upstream of the rpoEc-chrR-chrA operon and divergently transcribed, seeming to be involved in membrane lipid modification. …”
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Seasonal Variations in Chemical Composition and Antibacterial and Antioxidant Activities of <i>Rosmarinus officinalis</i> L. Essential Oil from Southwestern Romania by Ludovic Everard Bejenaru, Adina-Elena Segneanu, Cornelia Bejenaru, Andrei Biţă, Felicia Tuţulescu, Antonia Radu, Maria Viorica Ciocîlteu, George Dan Mogoşanu

“…The antioxidant activity was analyzed using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-<i>bis</i>(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and hydrogen peroxide (H₂O₂) radical scavenging assays. …”
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Okra juice used for rapid wound healing through its bioadhesive and antioxidant capabilities by Biao Zhang, Yuanqiang Li, Kaijie Wu, Liqi Wei, Yining Chen, Yuan Zhang, Yiping Ren, Tianshu Zou, Pengcheng Yu, Hongxia Ma, Rui Chen, Xin Liu, Yan Cheng

“…The strongest adhesion ability of this bioadhesive to wet tissue was 5.51 kPa, the ability to inhibit 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl radical, superoxide radical, hydroxyl radical, and hydrogen peroxide was 56.58 %, 49.94 %, 53.86 %, and 52.89 %, respectively, and the ability to promote cell proliferation was 181.46 %. …”
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Hypoxia-tropic delivery of nanozymes targeting transferrin receptor 1 for nasopharyngeal carcinoma radiotherapy sensitization by Ruofei Zhang, Yanfang Shen, Xiaoying Zhou, Jianru Li, Hanqing Zhao, Zixia Zhang, Jun Zhao, Hongjun Jin, Shuanshuan Guo, Hui Ding, Guohui Nie, Zhe Zhang, Ying Wang, Xiyun Yan, Kelong Fan

“…Nanozymes, nanomaterials with catalase-like activity, have emerged as a promising strategy for radiosensitization by converting elevated hydrogen peroxide in the tumor microenvironment into oxygen. …”
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Room temperature self-assembly and nonenzymatic electrochemical sensing performance of transition metal-embedded wheel-shaped tungstophosphates by Wen-Da Liu, Hao-Tian Zhu, Xue Zhang, Fang Su, Xiao-Jing Sang, Xiao-Lan Zhang, Lan-Cui Zhang

“…Compounds 1–3 were characterized by elemental, single-crystal X-ray diffraction, and other physical and spectral analyses, and their nonenzymatic electrochemical sensing performance for hydrogen peroxide (H2O2) was investigated by cyclic voltammetry. …”
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