Results 21 to 30 of about 2,201,642 (318)

The oxygen trail: tissue oxygenation [PDF]

open access: yesBritish Medical Bulletin, 1999
Aerobic cellular respiration depends on the efficient supply of oxygen and substrate to the mitochondria. There is an oxygen cascade from the environment to the subcellular environment. Efficient oxygen delivery depends on the coordinated interaction between the respiratory and circulatory systems.
M Singer, A T Nathan
openaire   +3 more sources

Constraining the rise of oxygen with oxygen isotopes [PDF]

open access: yesNature Communications, 2019
AbstractAfter permanent atmospheric oxygenation, anomalous sulfur isotope compositions were lost from sedimentary rocks, demonstrating that atmospheric chemistry ceded its control of Earth’s surficial sulfur cycle to weathering. However, mixed signals of anoxia and oxygenation in the sulfur isotope record between 2.5 to 2.3 billion years (Ga) ago ...
Pascal Philippot   +6 more
openaire   +6 more sources

Comprehensive Assessment of the Antioxidant and Anticancer Potential of Selected Ethnobotanical Plants

open access: yesOxygen, 2023
Globally, among different types of cancers, breast cancer is identified as the chief cause of mortality among females, and it is a challenge to find new effective treatment strategies with minimal side effects and increased efficacy.
Monoj Kumar Das   +2 more
doaj   +1 more source

Impacts of Varying Blood Flow Restriction Cuff Size and Material on Arterial, Venous and Calf Muscle Pump-Mediated Blood Flow

open access: yesOxygen, 2023
Blood flow restriction (BFR) may become ineffective or potentially dangerous without sufficient standardization. The purpose of this investigation was therefore to (1) assess the viability of multiple sizes of a novel BFR cuff to determine arterial ...
Steven B. Machek   +5 more
doaj   +1 more source

Efficacy of hyperbaric oxygen in treatment of prolonged disorders of consciousness after hypoxic-ischemic brain injury

open access: yesDi-san junyi daxue xuebao, 2021
Objective To investigate the effect of hyperbaric oxygen (HBO) therapy on consciousness and prognosis in patients with prolonged disorders of consciousness (pDOC) after hypoxic-ischemic brain injury (HIBI). Methods Clinical data of 78 pDOC patients after
CHEN Yan   +6 more
doaj   +1 more source

Beneficial effect of β-elemene alone and in combination with hyperbaric oxygen in traumatic brain injury by inflammatory pathway

open access: yesTranslational Neuroscience, 2018
Present study evaluates the neuroprotective effect of β-elemene alone and in combination with hyperbaric oxygen (HO) in traumatic brain injury (TBI).
Meng Xiangen   +7 more
doaj   +1 more source

Oxygen [PDF]

open access: yesBreathe, 2019
The September issue of Breathe focuses on medical oxygen http://bit.ly/2M83NLo.
openaire   +2 more sources

Effect of Hyperbaric Oxygen Therapy on Polarization Phenotype of Rat Microglia After Traumatic Brain Injury

open access: yesFrontiers in Neurology, 2021
Background: The neurological defect caused by secondary damage following traumatic brain injury (TBI) is considered critical for the management of TBI.
Fang Liang   +5 more
doaj   +1 more source

Living with Oxygen [PDF]

open access: yesAccounts of Chemical Research, 2018
Work on the electronic structures of metal-oxo complexes began in Copenhagen over 50 years ago. This work led to the prediction that tetragonal multiply bonded transition metal-oxos would not be stable beyond the iron-ruthenium-osmium oxo wall in the periodic table and that triply bonded metal-oxos could not be protonated, even in the strongest ...
Harry B. Gray, Jay R. Winkler
openaire   +5 more sources

Flow Cytometry of Oxygen and Oxygen-Related Cellular Stress

open access: yesOxygen, 2023
Reactive oxygen species (ROS) are unstable and highly reactive molecular forms that play physiological roles in cell signaling and immune defense. However, when ROS generation is not properly balanced by antioxidant defenses, a pathological condition ...
Beatriz Jávega   +3 more
doaj   +1 more source

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