Results 201 to 210 of about 28,027 (244)

Pathways of cell signaling in hyperoxia

Free Radical Biology and Medicine, 2003
Administration of high concentrations of oxygen (hyperoxia) is a mainstay of supportive treatment for patients suffering from severe respiratory failure. However, hyperoxia, by generating excess systemic reactive oxygen species (ROS), can exacerbate organ failure by causing cellular injury.
Patty J Lee, Augustine M K Choi
exaly   +3 more sources

Effects of hyperoxia on phagocytosis

Blut, 1982
The development of bacterial infections is a common complication during treatment with high concentrations of oxygen. To study the effect of hyperoxia on phagocytes, the adherence, chemotaxis, ingestion rates, degranulation as well as the bactericidal activity were measured in alveolar macrophages (AMs) and polymorphonuclear leukocytes (PMNs) obtained ...
openaire   +2 more sources

Hyperoxia in head injury

Current Opinion in Critical Care, 2004
Currently, no neuroprotective therapies have been shown to reduce the secondary neuronal damage occurring after traumatic brain injury. Recent studies have addressed the potentiality of hyperoxia to ameliorate brain metabolism after traumatic brain injury.
L.G. Longhi, N. Stocchetti
openaire   +3 more sources

Response of choroidal blood flow in the foveal region to hyperoxia and hyperoxia-hypercapnia

Current Eye Research, 2000
Arterial carbon dioxide tension and arterial oxygen tension are important determinants of retinal and cerebral blood flow. In the present study the hypothesis that changes in arterial blood gases also influence choroidal blood flow was tested.The effect of breathing different mixtures of oxygen (O(2)) and carbon dioxide (CO(2)) on choroidal blood flow ...
M H, Geiser, C E, Riva, G T, Dorner, U, Diermann, A, Luksch, L, Schmetterer   +5 more
openaire   +2 more sources

Hyperoxia and Functional MRI

2016
Oxygen plays a fundamental role in functional magnetic resonance imaging (FMRI). Blood oxygenation level-dependent (BOLD) imaging is the foundation stone of all FMRI and is still the essential workhorse of the vast majority of FMRI procedures. Hemoglobin may provide the magnetic properties that allow the technique to work, but it is oxygen that allows ...
openaire   +2 more sources

Hyperoxia and formation of chromolipoid pigments

Experientia, 1962
Ratten, die wiederholt hohen O2-Drucken ausgesetzt wurden, zeigten nach 4 Wochen erhohte chromolipoide Pigmentation. Die Pigmentation blieb relativ gering und lag hauptsachlich in der Gefasswand und deren Umgebung bzw. den Stellen hochsten O2-Druckes.
M, WOLMAN, L, ZAIDEL
openaire   +2 more sources

Reversal of rabbit atheromatosis by hyperoxia

Journal of Atherosclerosis Research, 1969
Summary Twenty-four rabbits were fed standard rabbit pellets plus 2 % cholesterol. Twelve animals were exposed for 10 weeks to 28 % oxygen (atmospheric air + oxygen) and 12 animals to 21 % oxygen (atmospheric air). The degree of visible aortic atheromatosis and the aortic content of total cholesterol, phospholipids and triglycerides were ...
K, Kjeldsen, P, Astrup, J, Wanstrup
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Posthypoxic jugular venous hyperoxia

Neurology, 1970
SUMMARYThe phenomenon of jugular venous hyperoxia following episodes of hypoxic injury has been evaluated. In monkeys respiring 3.5% oxygen in nitrogen for intervals as long as thirty minutes, it was found that the duration of postinsult cerebral venous hyperoxygenation related to the duration of hypoxic exposure as long as the blood pressure was ...
H M, Shapiro, R E, Myers, J, Segarra, S, Sotsky   +3 more
openaire   +2 more sources

Effects of Perinatal Hyperoxia on Breathing

Comprehensive Physiology, 2020
Abstract Air‐breathing animals do not experience hyperoxia (inspired O 2 > 21%) in nature, but preterm and full‐term infants often experience hyperoxia/hyperoxemia in clinical settings.
openaire   +2 more sources

Hyperoxia

Journal of Neurosurgery, 2007
Gaylan L, Rockswold, Sarah B, Rockswold
openaire   +2 more sources