Results 31 to 40 of about 107,521,968 (199)

The mammalian peroxisomal membrane is permeable to both GSH and GSSG – Implications for intraperoxisomal redox homeostasis

open access: yesRedox Biology, 2023
Despite the large amounts of H2O2 generated in mammalian peroxisomes, cysteine residues of intraperoxisomal proteins are maintained in a reduced state.
Maria J. Ferreira   +6 more
doaj   +1 more source

Activation of the glutaredoxin-1 gene by nuclear factor κB enhances signaling [PDF]

open access: yesFree Radical Biology and Medicine, 2011
The transcription factor nuclear factor κB (NF-κB) is a critical regulator of inflammation and immunity and is negatively regulated via S-glutathionylation. The inhibitory effect of S-glutathionylation is overcome by glutaredoxin-1 (Grx1), which under physiological conditions catalyzes deglutathionylation and enhances NF-κB activation.
Aesif, S.W.   +10 more
openaire   +2 more sources

Disturbances of the Lung Glutathione System in Adult Guinea Pigs Following Neonatal Vitamin C or Cysteine Deficiency

open access: yesAntioxidants, 2023
In premature infants receiving parenteral nutrition, oxidative stress is a trigger for the development of bronchopulmonary dysplasia, which is an important factor in the development of adult lung diseases. Neonatal vitamin C and glutathione deficiency is
Vitor Teixeira   +2 more
doaj   +1 more source

Modulation of Glutaredoxin-1 Expression in a Mouse Model of Allergic Airway Disease [PDF]

open access: yesAmerican Journal of Respiratory Cell and Molecular Biology, 2007
Abstract Glutaredoxins (GRX) are antioxidant enzymes that preferentially catalyze the reduction of protein-glutathione mixed disulfides. The formation of mixed disulfides with GSH is known as S-glutathionylation, a post-translational modification that is emerging as an important mode of redox signaling.
Reynaert, N.L.   +2 more
openaire   +3 more sources

Intracellular glutathione pools are heterogeneously concentrated [PDF]

open access: yes, 2013
Glutathione is present in millimolar concentrations in the cell, but its relative distribution among cellular compartments remains elusive. We have chosen the endoplasmic reticulum (ER) as an example organelle to study compartment-specific glutathione ...
Christine Tachibana   +12 more
core   +1 more source

Glutaredoxin-1 Deficiency Causes Fatty Liver and Dyslipidemia by Inhibiting Sirtuin-1. [PDF]

open access: yesAntioxid Redox Signal, 2017
Aims: Nonalcoholic fatty liver (NAFL) is a common liver disease associated with metabolic syndrome, obesity, and diabetes that is rising in prevalence worldwide. Various molecular perturbations of key regulators and enzymes in hepatic lipid metabolism cause NAFL.
Shao D   +10 more
europepmc   +4 more sources

Hypoxia Affects the Antioxidant Activity of Glutaredoxin 3 in Scylla paramamosain through Hypoxia Response Elements

open access: yesAntioxidants, 2022
Hypoxia is a major environmental stressor that can damage the oxidation metabolism of crustaceans. Glutaredoxin (Grx) is a key member of the thioredoxin superfamily and plays an important role in the host’s defense against oxidative stress.
Yu-Kun Jie   +6 more
doaj   +1 more source

Upregulation of Glutaredoxin-1 Activates Microglia and Promotes Neurodegeneration: Implications for Parkinson's Disease. [PDF]

open access: yesAntioxid Redox Signal, 2016
Aims: Neuroinflammation and redox dysfunction are recognized factors in Parkinson's disease (PD) pathogenesis, and diabetes is implicated as a potentially predisposing condition. Remarkably, upregulation of glutaredoxin-1 (Grx1) is implicated in regulation of inflammatory responses in various disease contexts ...
Gorelenkova Miller O   +7 more
europepmc   +4 more sources

Lack of the antioxidant glutathione peroxidase-1 does not increase atherosclerosis in C57BL/J6 mice fed a high-fat diet

open access: yesJournal of Lipid Research, 2006
Oxidative stress is thought to contribute to the initiation and progression of atherosclerosis. As glutathione peroxidase-1 (Gpx1) is an antioxidant enzyme that detoxifies lipid hydroperoxides, we tested the impact of Gpx1 deficiency on atherosclerotic ...
Judy B. de Haan   +7 more
doaj   +1 more source

Impaired cross-talk between the thioredoxin and glutathione systems is related to ASK-1 mediated apoptosis in neuronal cells exposed to mercury

open access: yesRedox Biology, 2017
Mercury (Hg) compounds target both cysteine (Cys) and selenocysteine (Sec) residues in peptides and proteins. Thus, the components of the two major cellular antioxidant systems – glutathione (GSH) and thioredoxin (Trx) systems – are likely targets for ...
Vasco Branco   +6 more
doaj   +1 more source

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