Results 41 to 50 of about 11,517 (308)

The conceptus induces a switch in protein expression and activities of superoxide dismutase 1 and 2 in the sheep endometrium during early pregnancy [PDF]

open access: yes, 2016
Acknowledgements We thank Philippe Bolifraud (INRA, France), Krawiec Angele, Sandra Grange, Laurence Puillet-Anselme (CHU Grenoble, France) and Margaret Fraser (Aberdeen, UK) for their expert technical assistance.
Al-Gubory, K. H.   +3 more
core   +2 more sources

Peroxynitrite decomposition catalyst prevents apoptotic cell death in a human astrocytoma cell line incubated with supernatants of HIV-infected macrophages

open access: yesBMC Neuroscience, 2002
Background Oxidative stress has shown to contribute in the mechanisms underlying apoptotic cell death occuring in AIDS-dementia complex. Here we investigated the role of peroxynitrite in apoptosis occurring in astroglial cells incubated with supernatants
Perno Carlo   +9 more
doaj   +1 more source

Antioxidative and Oxidative Profiles in Plasma and Saliva in Dairy Cows during Pregnancy

open access: yesAnimals, 2021
Increased metabolism that occurs during pregnancy can result in oxidative stress which is harmful to cells and, consequently, for the proper functioning of the whole organism.
Arletta Bielecka   +2 more
doaj   +1 more source

Responses of marine macroalgae to hydrogen-peroxide stress [PDF]

open access: yesJournal of Experimental Marine Biology and Ecology, 2003
Abstract In this study, we determined the antioxidative potential of 15 marine macroalgae by measuring the photosynthetic efficiency under artificial oxidative stress after a 30-min exposure to a series of ascending H2O2 concentrations. Species exhibiting high maximum quantum yields (Fv/Fm values) were regarded as not susceptible towards H2O2 stress.
Dummermuth, Angelika   +4 more
openaire   +2 more sources

HDL antioxidant effects as assessed using a nonexchangeable probe to monitor particle-specific peroxidative stress in LDL-HDL mixtures.

open access: yesJournal of Lipid Research, 1995
High density lipoproteins (HDL) have been reported to inhibit oxidation of low density lipoproteins (LDL) based in part on observations that oxidative changes occur more slowly in LDL-HDL mixtures than in LDL alone.
D.L. Tribble   +4 more
doaj   +1 more source

Nickel Ions Enhanced the Adaptability of Tomato Seedling Roots to Low-Nitrogen Stress by Improving Their Antioxidant Capacity

open access: yesHorticulturae, 2023
To elucidate the physiological mechanisms underlying the impact of exogenous nickel ions (Ni2+) on the adaptability of tomato (Solanum lycopersicum L.) seedling roots to low-nitrogen levels, the cultivar ‘Micro Tom’ was selected as the experimental ...
Shengxiang Ran   +4 more
doaj   +1 more source

Total Thiols and MDA Levels in Patients with Acute Myocardial Infarction Before and After Reperfusion Therapy [PDF]

open access: yes, 2010
Background: Reactive oxygen species have been implicated in the pathogenesis of ischemic and reperfusion injury. In the current work we have measured malondialdehyde (MDA), total thiols, total CK, CK-MB and AST in ECG proven acute myocardial infarction ...
Babu, Suresh   +2 more
core   +1 more source

Structural Evidence for a Copper-Bound Carbonate Intermediate in the Peroxidase and Dismutase Activities of Superoxide Dismutase [PDF]

open access: yes, 2012
Copper-zinc superoxide dismutase (SOD) is of fundamental importance to our understanding of oxidative damage. Its primary function is catalysing the dismutation of superoxide to O2 and H2O2. SOD also reacts with H2O2, leading to the formation of a strong
Luis Eduardo Soares Netto   +4 more
core   +3 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Beneficial role of melatonin in protecting mammalian gametes and embryos from oxidative damage

open access: yesJournal of Integrative Agriculture, 2018
Mammalian gametes and embryos are particularly vulnerable to oxidative stress-induced damage, which is mainly caused by reactive oxygen species (ROS) originating from normal metabolism and/or the external environment.
Yun-wei PANG   +4 more
doaj   +1 more source

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