Articles with "anoxia" as a keyword



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The effects of hypolimnetic anoxia on the diel vertical migration of freshwater crustacean zooplankton

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Published in 2018 at "Ecosphere"

DOI: 10.1002/ecs2.2332

Abstract: Lakes and reservoirs worldwide are increasingly experiencing depletion of dissolved oxygen (anoxia) in their bottom waters (the hypolimnion) because of climate change and eutrophication, which is altering the dynamics of many freshwater ecological communities. Hypolimnetic… read more here.

Keywords: vertical migration; zooplankton; hypolimnetic anoxia; anoxia ... See more keywords
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Pgant4 and Tango1 Mediate Anoxia and Reoxygenation Injury

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Published in 2020 at "Neuroscience Bulletin"

DOI: 10.1007/s12264-020-00562-y

Abstract: Diseases caused by ischemia, including coronary artery disease and stroke, are a leading cause of death worldwide [1]. Restoration of the blood and oxygen supply after restriction also causes tissue damage by activating a number… read more here.

Keywords: disease; anoxia; model; pgant4 tango1 ... See more keywords
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Ichnofabrics and chemostratigraphy argue against persistent anoxia during the Upper Kellwasser Event in New York State

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Published in 2018 at "Palaeogeography, Palaeoclimatology, Palaeoecology"

DOI: 10.1016/j.palaeo.2017.10.025

Abstract: Abstract Organic-rich strata coeval with bioevents of varying magnitudes characterize global Devonian sedimentary successions. The Upper Kellwasser (UKw) black shale depositional event is coincident with the largest pulse of diversity loss within the marine Late… read more here.

Keywords: water; anoxia; dissolved oxygen; event ... See more keywords
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Lower Triassic carbonate δ238U record demonstrates expanded oceanic anoxia during Smithian Thermal Maximum and improved ventilation during Smithian-Spathian boundary cooling event

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Published in 2018 at "Palaeogeography, Palaeoclimatology, Palaeoecology"

DOI: 10.1016/j.palaeo.2019.109393

Abstract: Abstract The Smithian-Spathian boundary (SSB) transition was recently identified as a major biocrisis on the road to marine ecosystem recovery following the end-Permian mass extinction. Marine anoxia is hypothesized to have played an important role… read more here.

Keywords: record; anoxia; anoxia smithian; spathian boundary ... See more keywords
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First Evidence of Anoxia and Nitrogen Loss in the Southern Canary Upwelling System

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Published in 2019 at "Geophysical Research Letters"

DOI: 10.1029/2018gl079622

Abstract: The northeastern Atlantic hosts the most ventilated subsurface waters of any eastern boundary upwelling system, while coastal upwelling source waters are slightly above hypoxic levels. Anoxic conditions have previously been found offshore inside mesoscale eddies… read more here.

Keywords: upwelling system; nitrogen loss; system; anoxia ... See more keywords
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Abrupt global-ocean anoxia during the Late Ordovician–early Silurian detected using uranium isotopes of marine carbonates

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Published in 2018 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.1802438115

Abstract: Significance The Late Ordovician mass extinction (LOME) terminated one of the greatest biodiversity radiations in Earth history eliminating ∼85% of marine animals, and it is coincident with the first major glaciation of the Phanerozoic. To… read more here.

Keywords: ocean; late ordovician; global ocean; early silurian ... See more keywords

The vacuolar H+/Ca transporter CAX1 participates in submergence and anoxia stress responses.

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Published in 2022 at "Plant physiology"

DOI: 10.1093/plphys/kiac375

Abstract: A plant's oxygen supply can vary from normal (normoxia) to total depletion (anoxia). Tolerance to anoxia is relevant to wetland species, rice (Oryza sativa) cultivation and submergence tolerance of crops. Decoding and transmitting calcium (Ca)… read more here.

Keywords: stress; transporter cax1; submergence; anoxia ... See more keywords
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Turtles maintain mitochondrial integrity but reduce mitochondrial respiratory capacity in the heart after cold acclimation and anoxia

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Published in 2019 at "Journal of Experimental Biology"

DOI: 10.1242/jeb.200410

Abstract: ABSTRACT Mitochondria are important to cellular homeostasis, but can become a dangerous liability when cells recover from hypoxia. Anoxia-tolerant freshwater turtles show reduced mitochondrial respiratory capacity and production of reactive oxygen species (ROS) after prolonged… read more here.

Keywords: mitochondrial respiratory; heart; anoxia; cold acclimation ... See more keywords
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Glutathione Depletion Disrupts Redox Homeostasis in an Anoxia-Tolerant Invertebrate

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Published in 2023 at "Antioxidants"

DOI: 10.3390/antiox12061197

Abstract: The upregulation of endogenous antioxidants is a widespread phenomenon in animals that tolerate hypoxia/anoxia for extended periods. The identity of the mobilized antioxidant is often context-dependent and differs among species, tissues, and stresses. Thus, the… read more here.

Keywords: glutathione depletion; glutathione; redox homeostasis; anoxia ... See more keywords
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Friction in Myocardial Anoxia Leads to Negative Excess Entropy Production, Self-Organization, and Dissipative Structures

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Published in 2022 at "International Journal of Molecular Sciences"

DOI: 10.3390/ijms23136967

Abstract: Contraction of the heart is caused by actin filaments sliding along myosin filaments. This generates a frictional force inducing wear of the contractile apparatus. We postulated that this process could be exacerbated when the heart… read more here.

Keywords: entropy production; self organization; excess entropy; anoxia ... See more keywords
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Cytoskeletal Arrest: An Anoxia Tolerance Mechanism

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Published in 2021 at "Metabolites"

DOI: 10.3390/metabo11080561

Abstract: Polymerization of actin filaments and microtubules constitutes a ubiquitous demand for cellular adenosine-5′-triphosphate (ATP) and guanosine-5′-triphosphate (GTP). In anoxia-tolerant animals, ATP consumption is minimized during overwintering conditions, but little is known about the role of… read more here.

Keywords: cytoskeletal arrest; anoxia tolerance; mechanism; anoxia ... See more keywords