Results 61 to 70 of about 717,672 (315)

The oxidation of ascorbic acid and its reduction in vitro and in vivo [PDF]

open access: yes, 1937
The outstanding chemical property of ascorbic acid (vitamin C) is that it is a reducing agent. The suggestion is obvious that its physiological function may be associated with this property, and, if it is oxidized reversibly, with its behavior in an ...
Borsook, Henry   +3 more
core  

Mutations in PNKD causing paroxysmal dyskinesia alters protein cleavage and stability. [PDF]

open access: yes, 2011
Paroxysmal non-kinesigenic dyskinesia (PNKD) is a rare autosomal dominant movement disorder triggered by stress, fatigue or consumption of either alcohol or caffeine.
Babbitt, Patricia   +6 more
core   +2 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Cytoprotective effects of melatonin against amitriptyline-induced toxicity in isolated rat hepatocytes [PDF]

open access: yes, 2015
Purpose: Amitriptyline, one of the commonly used tricyclic antidepressants, caused rare but severe hepatotoxicity in patients who received it continuously. Previous findings showed that the intermediate metabolites of amitriptyline produced by CYP450 are
Dastmalchi, S.   +3 more
core   +1 more source

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

open access: yesFEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel   +8 more
wiley   +1 more source

Redox linked flavin sites in extracellular decaheme proteins involved in microbe-mineral electron transfer [PDF]

open access: yes, 2015
Extracellular microbe-mineral electron transfer is a major driving force for the oxidation of organic carbon in many subsurface environments. Extracellular multi-heme cytochromes of the Shewenella genus play a major role in this process but the mechanism
A Okamoto   +35 more
core   +1 more source

Iron homeostasis disruption and lipid peroxidation in skeletal muscle during short‐term immobilization

open access: yesFEBS Open Bio, EarlyView.
14‐day casting‐induced immobilization reduced gastrocnemius muscle mass and increased non‐heme iron and ferritin heavy chain levels. Despite iron accumulation, transferrin receptor 1 and iron regulatory protein 2 were paradoxically upregulated. Lipid peroxidation was elevated without compensatory antioxidant responses.
Haruka Yokogawa   +2 more
wiley   +1 more source

Monitoring Dynamic Changes of Cellular Membrane GSH During Stroke via an ESIPT-Based Near-Infrared Fluorescent Probe

open access: yesMolecules
Stroke, primarily ischemic (85%), results from inadequate blood supply and is worsened by ferroptosis, characterized by free radical generation and lipid peroxidation.
Yue Gao, Zhao Wang
doaj   +1 more source

Pharmacological activation of endogenous protective pathways against oxidative stress under conditions of sepsis [PDF]

open access: yes, 2016
Funding The study was funded entirely by institutional funds.Peer ...
Galley, H. F.   +4 more
core   +1 more source

Glutathione-Related Enzyme System: Glutathione Reductase (GR), Glutathione Transferases (GSTs) and Glutathione Peroxidases (GPXs) [PDF]

open access: yes, 2016
The glutathione-related enzymes are usually considered to accompany the main non-enzymatic antioxidative compounds of the ascorbate–glutathione cycle. Taking into account that the redox processes are not spontaneous in cells, but the adequate reaction velocity and appropriate specificity are achieved by the catalyzing activity of enzymes, special ...
Csiszár Jolán   +3 more
openaire   +2 more sources

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