Browsing by Subject "hydrogen-peroxide"
Now showing items 1-14 of 14
-
Adenoviral-mediated overexpression of catalase inhibits endothelial cell proliferation
(American Physiological Society, 2002-12-01)Although hydrogen peroxide (H2O2) induces proliferation of vascular smooth muscle cells, its role in endothelial cell proliferation is unclear. Our aim was to study the role of hydrogen peroxide in endothelial cell ... -
Antioxidant and cytoprotective activities of fucus spiralis seaweed on a human cell in vitro model
(MDPI AG, 2017-01-29)Antioxidants play an important role as Reactive Oxygen Species (ROS) chelating agents and, therefore, the screening for potent antioxidants from natural sources as potential protective agents is of great relevance. The ... -
Assessing the microbial oxidative stress mechanism of ozone treatment through the responses of escherichia coli mutants
(Wiley-Blackwell, 2011-05-13)Aims: To investigate the effect of the oxidative stress of ozone on the microbial inactivation, cell membrane integrity and permeability and morphology changes of Escherichia coli. Methods and Results: Escherichia coli BW ... -
Basin scale survey of marine humic fluorescence in the atlantic: relationship to iron solubility and h2o2
(Wiley-Blackwell, 2013-02-14)Iron (Fe) is a limiting nutrient for phytoplankton productivity in many different oceanic regions. A critical aspect underlying iron limitation is its low solubility in seawater as this controls the distribution and transport ... -
Comparative evaluation of biochemical changes in tomato (lycopersicon esculentum mill.) infected by alternaria alternata and its toxic metabolites (tea, aoh, and ame)
(Frontiers Media SA, 2016-09-22)In the present study, we have evaluated the comparative biochemical defense response generated against Alternaria alternate and its purified toxins viz. alternariol (AOH), alternariol monomethyl ether (AME), and tenuazonic ... -
Compartmental oxidation of thiol–disulphide redox couples during epidermal growth factor signalling
(Portland Press Ltd., 2005-03-01)Exogenously added ROS (reactive oxygen species) cause generalized oxidation of cellular components, whereas endogenously generated ROS induced by physiological stimuli activate discrete signal transduction pathways. ... -
Global effects of homocysteine on transcription in escherichia coli: induction of the gene for the major cold-shock protein, cspa
(Microbiology Society, 2006-08-01)Homocysteine (Hey) is a thiol-containing amino acid that is considered to be medically important because it is linked to the development of several life-threatening diseases in humans, including cardiovascular disease and ... -
Nanomaterials and biomaterials in electrochemical arrays for protein detection
(Royal Society of Chemistry (RSC), 2014-01-01)Nanomaterials and biomaterials are important components of new electrochemical arrays designed for sensitive detection of proteins in biological fluids. Such multiplexed protein arrays are predicted to have an important ... -
Pathways of superoxide (o2–) decay in the eastern tropical north atlantic
(American Chemical Society (ACS), 2013-08-26)Superoxide (O-2(-): IUPAC name dioxide (center dot 1-)) is an important transient reactive oxygen species (ROS) in the ocean formed as an intermediate in the redox transformation of oxygen (O-2) into hydrogen peroxide ... -
Perk is required at the er-mitochondrial contact sites to convey apoptosis after ros-based er stress
(Springer Nature, 2012-06-15)Endoplasmic reticulum stress is emerging as an important modulator of different pathologies and as a mechanism contributing to cancer cell death in response to therapeutic agents. In several instances, oxidative stress and ... -
Photolon™ - photosensitization induces apoptosis via ros-mediated cross-talk between mitochondria and lysosomes
(Spandidos Publications, 2011-07-01)The localization of photosensitizers in the subcellular compartments during photodynamic therapy (PDT) plays a major role in the cell destruction; therefore, the aim of this study was to investigate the intracellular ... -
Reactivity of inorganic mn and mn desferrioxamine b with o2, o2–, and h2o2in seawater
(American Chemical Society (ACS), 2013-08-22)Manganese (Mn) is a required element for oceanic phytoplankton as it plays a critical role in photosynthesis, through its unique redox chemistry, as the active site in photosystem II, and in enzymes that act as defenses ... -
The combined effects of arbuscular mycorrhizal fungi (amf) and lead (pb) stress on pb accumulation, plant growth parameters, photosynthesis, and antioxidant enzymes in robinia pseudoacacia l.
(Public Library of Science (PLoS), 2015-12-23)Arbuscular mycorrhizal fungi (AMF) are considered as a potential biotechnological tool for improving phytostabilization efficiency and plant tolerance to heavy metal-contaminated soils. However, the mechanisms through which ... -
Voltammetric microwell array for oxidized guanosine in intact ds-dna
(American Chemical Society (ACS), 2013-11-19)Oxidative stress in humans causes damage to biomolecules by generating reactive oxygen species (ROS). DNA can be oxidatively damaged by ROS, which may lead to carcinogenesis. Here we report a microfluidic electrochemical ...