Results 11 to 20 of about 6,622,719 (397)

The ‘oxygen’ in oxygen minimum zones

open access: yesEnvironmental Microbiology, 2022
Abstract Aerobic processes require oxygen, and anaerobic processes are typically hindered by it. In many places in the global ocean, oxygen is completely removed at mid‐water depths forming anoxic oxygen minimum zones (A‐OMZs).
Canfield, Donald E., Kraft, Beate
openaire   +3 more sources

Complete Recovery of an Iatrogenic Venous Gaseous Embolism (VGE) Clinical Presentation Thanks to a Timely Hyperbaric Oxygen Therapy (HBOT) Treatment

open access: yesOxygen, 2022
Gas embolism is a potentially fatal occurrence in which bubbles are introduced into the arterial/venous circulation. A multifocal ischemia could be the life-threatening scenario of that and occurring after diving-related activities, or pulmonary ...
Vincenzo Zanon   +3 more
doaj   +1 more source

RONS and Oxidative Stress: An Overview of Basic Concepts

open access: yesOxygen, 2022
Oxidative stress (OS) has greatly interested the research community in understanding damaging processes occurring in cells. OS is triggered by an imbalance between reactive oxygen species (ROS) production and their elimination by the antioxidant system ...
Ana Karina Aranda-Rivera   +4 more
doaj   +1 more source

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.
A T, Nathan, M, Singer
openaire   +2 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

Diapycnal oxygen supply to the tropical North Atlantic oxygen minimum zone [PDF]

open access: yes, 2012
The replenishment of consumed oxygen in the open ocean oxygen minimum zone (OMZ) off northwest Africa is accomplished by oxygen transport across and along density surfaces, i.e. diapycnal and isopycnal oxygen supply. Here the diapycnal oxygen supply is
Banyte, Donata   +6 more
core   +3 more sources

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

Effect of Water-Soluble Chlorine-Containing Buckminsterfullerene Derivative on the Metabolism of Reactive Oxygen Species in Human Embryonic Lung Fibroblasts

open access: yesOxygen, 2022
The development of novel biologically active nanopharmaceuticals is a topical problem of medicine. Water-soluble fullerene derivatives are of particular interest due to their ability to regulate intracellular metabolism of reactive oxygen species (ROS ...
Ekaterina A. Savinova   +10 more
doaj   +1 more source

Mitochondrial Dysfunction and Nanocarrier-Based Treatments in Chronic Obstructive Pulmonary Disease (COPD)

open access: yesOxygen, 2023
Mitochondrial dysfunction significantly contributes to the pathogenesis and progression of chronic obstructive pulmonary disease (COPD). To treat mitochondrial dysfunction in COPD, novel drug delivery systems (DDS) are needed.
Kiyoshi Sato, Hiroyoshi Kawakami
doaj   +1 more source

Looking beyond stratification: a model-based analysis of the biological drivers of oxygen deficiency in the North Sea [PDF]

open access: yes, 2016
Low oxygen conditions, often referred to as oxy- gen deficiency, occur regularly in the North Sea, a temperate European shelf sea. Stratification represents a major process regulating the seasonal dynamics of bottom oxygen, yet, low- est oxygen ...
Greenwood, Naomi   +7 more
core   +3 more sources

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