Results 51 to 60 of about 25,961 (244)

Canine brachycephalic obstructive airway syndrome as a model for studying the effects of obstructive sleep apnea during pregnancy

Animal Models and Experimental Medicine, EarlyView.
We observed a negative effect of brachycephalic obstructive airway syndrome (BOAS) in a staggered manner based on the severity of the condition on respiratory and cardiac patterns, glycemia, acid–base balance, fetal growth, and uterine artery hemodynamics, thus requiring adaptations within the fetal–placental unit. Severely affected bitches had uterine
Roberto Rodrigues da Rosa Filho, Thayná Pantoja Gardés, Maíra Morales Brito, Leticia Lima de Almeida, Camila Infantosi Vannucchi   +4 more
wiley   +1 more source

A radiobiological model of reoxygenation and fractionation effects [PDF]

Medical Physics, 2017
PurposeThe purpose of this study was to develop a radiobiological model of reoxygenation that fulfills the following goals: (a) Quantify the reoxygenation effect for different fractionations (b) Model the hypoxic fraction in tumors as a function of the number of radiation treatments.
Mariana, Guerrero, David J, Carlson
openaire   +2 more sources

On the modelling of artificial reoxygenation

, 2014
Les resultats d'une étude experimentale sur l'efficacé de transfer d'oxygene par une colonne bi-dimensionelle des bulles d'air sont presentés. La colonne d'air est formée par l'injèction d'air à partir d'une filtre poreux (180μ diametre) et d'une conduite perforée (1 mm diametre d'orifice).
Markofsky, Mark, Kobus, Helmut
openaire   +2 more sources

Effects of hypoxia and reoxygenation on energy metabolism, immune response, and apoptosis in orange-spotted grouper (Epinephelus coioides)

Frontiers in Marine Science
Hypoxia is an unfavorable environmental condition that produces diverse negative effects in fish. High-density cultures of Epinephelus coioides are more likely to experience hypoxic conditions than those in natural environments.
Yuxin Wu, Yiran Lin, Bing Lin, Yukun Huang, Zhide Yu, Yonghao Ma, Yuwei Feng, Qiaoyi Chen, Along Gao, Hu Shu   +9 more
doaj   +1 more source

The effects of the rate of reoxygenation on the recovery of hypoxemic hearts [PDF]

The Journal of Thoracic and Cardiovascular Surgery, 1995
R E F E R E N C E S 1. Edwards FH, Hale D, Cohen A, Thompson L, Pezzella T, Virmani R. Primary cardiac valve tumors. Ann Thorac Surg 1991;52:1127-31. 2. Cole DJ, Hendren WG, Sink JD, D'Amato PH. Myxoma attached solely to the tricuspid valve. Am J Cardiol 1989;64:546-7. 3. Suri RK, Pattankar VL, Singh H, Aikat BK, Gujral JS.
A. CORNO, M. SAMAJA, S. CASALINI, S. ALLIBARDI   +3 more
openaire   +2 more sources

Possible therapeutic repositioning of valproic acid: From epileptic seizures to acute kidney injury

British Journal of Clinical Pharmacology, EarlyView.
Valproic acid, an anticonvulsant, may be repositioned to prevent acute kidney injury due to ischemia followed by reperfusion. It preserves renal functions, electrolyte homeostasis and active sodium transport in kidney tubules, and blocks the onset of hypertension.
Danilo Alves‐Bezerra, Luiza B. Negreiros, Amaury Pereira‐Acácio, Isadora G. Almeida, João P. M. Veloso‐Santos, Jarlene A. Lopes, Glória Costa‐Sarmento, Humberto Muzi‐Filho, Adalberto Vieyra   +8 more
wiley   +1 more source

The Role of Reversible Protein Phosphorylation in Regulation of the Mitochondrial Electron Transport System During Hypoxia and Reoxygenation Stress in Marine Bivalves

Frontiers in Marine Science, 2020
Fluctuations in the ambient oxygen concentrations represent a major stressor for aerobic organisms causing ATP deficiency during hypoxia and excessive production of reactive oxygen species during reoxygenation.
Halina I. Falfushynska, Halina I. Falfushynska, Eugene Sokolov, Helen Piontkivska, Inna M. Sokolova, Inna M. Sokolova   +5 more
doaj   +1 more source

Numerical and Experimental Assessment of Oxygen Distribution in a Perfusion Bioreactor to Mimic the Osteochondral Niche

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Oxygen supply is a critical parameter in 3D cell cultivation using bioreactors. Since bioreactor designs often prioritise practical constraints, understanding the oxygen supply dynamics of the media is crucial for achieving either uniform or spatially controlled oxygen delivery.
Franziska Alt, Eric Langner, Hans‐Peter Wiesmann, Thomas Wallmersperger, Benjamin Kruppke   +4 more
wiley   +1 more source

Hypoxia-reoxygenation induced necroptosis in cultured rat renal tubular epithelial cell line [PDF]

Iranian Journal of Basic Medical Sciences, 2018
Objective(s): The aim of this study is to explore the potential role of hypoxia/reoxygenation in necroptosis in cultured rat renal tubular epithelial cell line NRK-52E, and further to investigate its possible mechanisms.Materials and Methods: Cells were ...
Changlai Zhu, Yang Liu, Zongyu Guan, Yi Zhou, Fang Liu, Tianyi Zhang   +5 more
doaj   +1 more source

A Method for Optical Quantification of Local Oxygen Limitations in Multiphase Bioreactors

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Spatial oxygen limitation is a major source of physiological stress and metabolic, scale‐dependent heterogeneity in aerobic bioprocesses. In gas‐liquid stirred tank reactors, oxygen availability is governed by hydrodynamics and mass transfer and is therefore inherently non‐uniform.
Ryan Rautenbach, Katharina Zörner, Jonas Barczyk, Marko Hoffmann, Ralf Takors, Michael Schlüter   +5 more
wiley   +1 more source