Results 21 to 30 of about 97,129 (264)

Recurringly Hypoxic: Bottom Water Oxygen Depletion Is Linked to Temperature and Precipitation in a Great Lakes Estuary

open access: yesHydrobiology, 2023
Hypolimnetic hypoxia is expanding globally due to anthropogenic eutrophication and climate warming. Muskegon Lake, a Great Lakes estuary, experiences annually recurring hypoxia, impairing ecological, social, and economic benefits.
Nathan M. Dugener   +3 more
doaj   +1 more source

A Comprehensive Review on Environmental and Microenvironmental Oxygen Sensing Pathways Mediated by Hypoxia-Inducible Factors (HIFs)

open access: yesمجله دانشکده پزشکی اصفهان, 2019
Oxygen deficiency, referred to as hypoxia, can be divided into two categories of environmental (exogenous) which is sensitized by respiratory cells, and microenvironmental (endogenous) responses by other cells in the body, like cancer cells.
Fatemeh Choopani   +4 more
doaj   +1 more source

Extent, patterns, and drivers of hypoxia in the world's streams and rivers

open access: yesLimnology and Oceanography Letters, 2023
Hypoxia in coastal waters and lakes is widely recognized as a detrimental environmental issue, yet we lack a comparable understanding of hypoxia in rivers. We investigated controls on hypoxia using 118 million paired observations of dissolved oxygen (DO)
Joanna R. Blaszczak   +9 more
doaj   +1 more source

An Aptitude for Altitude: Are Epigenomic Processes Involved?

open access: yesFrontiers in Physiology, 2019
In recent years, high-throughput genomic technologies and computational advancements have invigorated efforts to identify the molecular mechanisms regulating human adaptation to high altitude. Although exceptional progress regarding the identification of
Colleen G. Julian
doaj   +1 more source

Glial response to hypoxia in mutants of NPAS1/3 homolog Trachealess through Wg signaling to modulate synaptic bouton organization.

open access: yesPLoS Genetics, 2019
Synaptic structure and activity are sensitive to environmental alterations. Modulation of synaptic morphology and function is often induced by signals from glia. However, the process by which glia mediate synaptic responses to environmental perturbations
Pei-Yi Chen   +4 more
doaj   +1 more source

Interactions between oxygen homeostasis, food availability, and hydrogen sulfide signaling

open access: yesFrontiers in Genetics, 2012
The ability to sense and respond to stressful conditions is essential to maintain organismal homeostasis. It has long been recognized that stress response factors that improve survival in changing conditions can also influence longevity.
Nicole N Iranon   +2 more
doaj   +1 more source

Polycyclic Aromatic Hydrocarbons Have Adverse Effects on Benthic Communities in the Baltic Sea: Implications for Environmental Status Assessment

open access: yesFrontiers in Environmental Science, 2021
Changes in benthic macrofaunal communities are indicative of environmental stressors, including eutrophication and hypoxia. However, some species are sensitive not only to hypoxia but also to various environmental contaminants.
Caroline Raymond   +3 more
doaj   +1 more source

Differential Expression of miRNAs in the Respiratory Tree of the Sea Cucumber Apostichopus japonicus Under Hypoxia Stress

open access: yesG3: Genes, Genomes, Genetics, 2017
The sea cucumber, an important economic species, has encountered high mortality since 2013 in northern China because of seasonal environmental stress such as hypoxia, high temperature, and low salinity. MicroRNAs (miRNAs) are important in regulating gene
Da Huo   +7 more
doaj   +1 more source

Predicting the effects of coastal hypoxia on vital rates of the planktonic copepod Acartia tonsa Dana. [PDF]

open access: yesPLoS ONE, 2013
We describe a model predicting the effects of low environmental oxygen on vital rates (egg production, somatic growth, and mortality) of the coastal planktonic copepod Acartia tonsa.
David T Elliott   +2 more
doaj   +1 more source

Influence of hypoxia on biochemical aspects and on expression of genes related to oxygen-homeostasis of the Amazonian cichlid Astronotus ocellatus (Agassiz, 1831)

open access: yesGenetics and Molecular Biology, 2021
Variations in dissolved oxygen levels are common in the Amazonian aquatic environments and the aquatic organisms that inhabit these environments developed a variety of adaptive responses to deal with such conditions.
José L. Vasconcelos-Lima   +3 more
doaj   +1 more source

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