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See related article, pages 598–605 Appropriate regulation of reactive oxygen species (ROS) has a significant impact on health and disease. ROS includes oxygen ions (O2·) free radicals (superoxide [O![Graphic][1] ,2] and hydroxyl radicals), and peroxides (hydrogen peroxide [H2O2]) and are the products of normal oxygen consuming metabolic process ...
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Fluorescent Detection of Reactive Oxygen Species in Saccharomyces Cerevisiae Applied to Chronological Lifespan [PDF]
During the course of normal aerobic metabolism, cells are exposed to a wide range of reactive oxygen species such as the superoxide anion, hydrogen peroxide, and the hydroxyl radical. These reactive oxygen species (ROS) are highly reactive metabolites of
Bestwick, Megan, Schultz, Kelly
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Atomic oxygen patterning from a biomedical needle-plasma source [PDF]
A ”plasma needle” is a cold plasma source operating at atmospheric pressure. Such sources interact strongly with living cells, but experimental studies on bacterial samples show that this interaction has a surprising pattern resulting in circular or ...
Kelly, Seán, Turner, Miles M.
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Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
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A Peroxisomal Lon Protease and Peroxisome Degradation by Autophagy Play Key Roles in Vitality of Hansenula polymorpha Cells [PDF]
In eukaryote cells various mechanisms exist that are responsible for the removal of non-functional proteins. Here we show that in the yeast Hansenula polymorpha (H.
Bener Aksam, Eda +5 more
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We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Reactive oxygen species in periodontitis
Recent epidemiological studies reveal that more than two-third of the world′s population suffers from one of the chronic forms of periodontal disease. The primary etiological agent of this inflammatory disease is a polymicrobial complex, predominantly ...
Parveen Dahiya +5 more
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Reactive oxygen species in status epilepticus
It has long been recognized that status epilepticus can cause considerable neuronal damage, and this has become one of its defining features. The mechanisms underlying this damage are less clear.
Matthew C Walker
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Reactivity of a Nickel(II) Bis(amidate) Complex withmeta-Chloroperbenzoic Acid: Formation of a Potent Oxidizing Species [PDF]
Herein, we report the formation of a highly reactive nickel–oxygen species that has been trapped following reaction of a NiII precursor bearing a macrocyclic bis(amidate) ligand with meta-chloroperbenzoic acid (HmCPBA).
Aggarwal +60 more
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Structural biology of ferritin nanocages
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
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