Articles with "po2" as a keyword



Measurement of pO2 by luminescence lifetime spectroscopy: A comparative study of the phototoxicity and sensitivity of [Ru(Phen)3 ]2+ and PdTCPP in vivo.

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Published in 2017 at "Journal of biophotonics"

DOI: 10.1002/jbio.201600127

Abstract: Dysfunctions in tissue metabolism can be detected at early stages by oxygen partial pressure (pO2 ) measurement. The measurement of emission lifetimes offers very promising and non-invasive approach to estimate pO2 in vivo. This study… read more here.

Keywords: po2; polypyridyl complex; luminescence lifetime; measurement ... See more keywords
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BOLD quantified renal pO2 is sensitive to pharmacological challenges in rats

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Published in 2017 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.26367

Abstract: Blood oxygen level‐dependent (BOLD) MRI has been effectively used to monitor changes in renal oxygenation. However, R2* (or T2*) is not specific to blood oxygenation and is dependent on other factors. This study investigates the… read more here.

Keywords: quantified renal; po2; sensitive pharmacological; bold quantified ... See more keywords

O2 permeability of lipid bilayers is low, but increases with membrane cholesterol

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Published in 2021 at "Cellular and Molecular Life Sciences"

DOI: 10.1007/s00018-021-03974-9

Abstract: Oxygen on its transport route from lung to tissue mitochondria has to cross several cell membranes. The permeability value of membranes for O2 (PO2), although of fundamental importance, is controversial. Previous studies by mostly indirect… read more here.

Keywords: lipid bilayers; po2; cholesterol; membrane cholesterol ... See more keywords
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Microstructure and electrical properties of K0.5Na0.5NbO3 lead-free piezoelectric ceramics sintered in low pO2 atmosphere

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Published in 2018 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-018-0030-0

Abstract: Pure K0.5Na0.5NbO3 lead-free piezoelectric ceramics without any dopants/additives were sintered at various temperatures (950–1125 °C) in low pO2 atmosphere (pO2 ~ 10−6 atm). All ceramics exhibit high relative densities (> 94%) and low weight loss ( read more here.

Keywords: po2; po2 atmosphere; 5na0 5nbo3; ceramics sintered ... See more keywords

High glutathionylation of placental endothelial nitric oxide synthase in preeclampsia

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Published in 2019 at "Redox Biology"

DOI: 10.1016/j.redox.2019.101126

Abstract: Decreased nitric oxide (NO) bioavailability plays a critical role in the pathophysiology of preeclampsia (PE). Recent evidence indicates that S-glutathionylation may occur on the endothelial nitric oxide synthase (eNOS), leading to eNOS uncoupling, characterized by… read more here.

Keywords: endothelial nitric; po2; glutathionylation; enos glutathionylation ... See more keywords

Effects of Fluid Bolus Therapy on Renal Perfusion, Oxygenation, and Function in Early Experimental Septic Kidney Injury

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Published in 2019 at "Critical Care Medicine"

DOI: 10.1097/ccm.0000000000003507

Abstract: Objectives: To examine the effects of fluid bolus therapy on systemic hemodynamics, renal blood flow, intrarenal perfusion and oxygenation, PO2, renal function, and fluid balance in experimental early septic acute kidney injury. Design: Interventional study.… read more here.

Keywords: perfusion; kidney injury; bolus therapy; fluid bolus ... See more keywords

Differential responses of cerebral and renal oxygenation to altered perfusion conditions during experimental cardiopulmonary bypass in sheep

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Published in 2024 at "Clinical and Experimental Pharmacology and Physiology"

DOI: 10.1111/1440-1681.13852

Abstract: We tested whether the brain and kidney respond differently to cardiopulmonary bypass (CPB) and to changes in perfusion conditions during CPB. Therefore, in ovine CPB, we assessed regional cerebral oxygen saturation (rSO2) by near‐infrared spectroscopy… read more here.

Keywords: po2; brain; tissue po2; cpb ... See more keywords

Theoretical Understanding of Effects of Operating Modes on the Performance Durability of Solid Oxide Cells: A Comparison between Potentiostatic and Galvanostatic Operations

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Published in 2024 at "Journal of The Electrochemical Society"

DOI: 10.1149/1945-7111/ad3059

Abstract: In solid oxide cells (SOCs), the choice of operating mode, specifically between galvanostatic and potentiostatic, has negligible impact when the properties of the cell components remain unchanged, leading to stable cell performance without degradation. However,… read more here.

Keywords: po2; degradation; solid oxide; performance ... See more keywords

Oxygen dependence of respiration in rat spinotrapezius muscle contracting at 0.5-8 twitches per second.

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Published in 2018 at "Journal of applied physiology"

DOI: 10.1152/japplphysiol.01136.2016

Abstract: The oxygen dependence of respiration was obtained in situ in microscopic regions of rat spinotrapezius muscle for different levels of metabolic activity produced by electrical stimulation at rates from 0.5 to 8 Hz. The rate… read more here.

Keywords: oxygen; po2; muscle; respiration ... See more keywords

Hypoxia-Tolerance of neural function after hibernation in bullfrogs: Responses to Graded Oxygen Deprivation and tissue metabolic demand

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Published in 2025 at "Physiology"

DOI: 10.1152/physiol.2025.40.s1.0919

Abstract: Neural circuit function is vulnerable to low oxygen levels; however, the adult American bullfrog (Aquarana catesbeianus) shows remarkable plasticity in response to hibernation, allowing neural networks to function ~20-times longer without oxygen by relying solely… read more here.

Keywords: po2; oxygen; physiology; function ... See more keywords

Clinical Accuracy of a Glucose Oxidase-Based Blood Glucose Test-Strip Across Extremes of Oxygen Partial Pressure.

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Published in 2023 at "Journal of diabetes science and technology"

DOI: 10.1177/19322968231158663

Abstract: BACKGROUND Glucose oxidase (GOx)-based blood glucose monitors (BGMs) are influenced by the partial pressure of oxygen (Po2) within the applied sample. Limited in-clinic data exists regarding the quantitative effect of Po2 in unmanipulated capillary fingertip… read more here.

Keywords: blood glucose; po2; partial pressure; blood ... See more keywords