Results 291 to 300 of about 3,797,690 (364)
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Reactive Oxygen Species (ROS)-Based Nanomedicine.
Chemical Reviews, 2019Reactive oxygen species (ROS) play an essential role in regulating various physiological functions of living organisms. The intrinsic biochemical properties of ROS, which underlie the mechanisms necessary for the growth, fitness, or aging of living ...
Bowen Yang, Yu Chen, Jianlin Shi
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Current Medicinal Chemistry, 2013
Oxygen (O(2)) is a vital element. Shortage of O(2) results in deranged metabolism and important changes in vascular tone with opposite effects on the systemic and pulmonary circulation. During hypoxemia, oxidative stress exposes the organism to a sort of accelerated senescence as well as to several acute untoward effects.
Corsonello, A. +5 more
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Oxygen (O(2)) is a vital element. Shortage of O(2) results in deranged metabolism and important changes in vascular tone with opposite effects on the systemic and pulmonary circulation. During hypoxemia, oxidative stress exposes the organism to a sort of accelerated senescence as well as to several acute untoward effects.
Corsonello, A. +5 more
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EcoSal Plus, 2009
Like most bacteria, Escherichia coli has a flexible and branched respiratory chain that enables the prokaryote to live under a variety of environmental conditions, from highly aerobic to completely anaerobic. In general, the bacterial respiratory chain is composed of dehydrogenases, a quinone pool, and reductases ...
Michael I. Verkhovsky +1 more
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Like most bacteria, Escherichia coli has a flexible and branched respiratory chain that enables the prokaryote to live under a variety of environmental conditions, from highly aerobic to completely anaerobic. In general, the bacterial respiratory chain is composed of dehydrogenases, a quinone pool, and reductases ...
Michael I. Verkhovsky +1 more
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Nature, 1932 MR. ODELL'S remarks,1 regarding Dr. Argyll Campbell's experiments, which were designed to test the power of acclimatisation of animals to low oxygen pressure, are not quite accurate. These experiments were undertaken to supply information that was wanting, and to endeavour to explain the adverse symptoms recorded in the official reports of the Everest ...
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1989
Interest in developing a method for predicting arterial oxygen tension following changes in inspired oxygen concentration (FIO2) has existed since the advent of oxygen therapy. Hess [1] has published a predictive formula to accomplish this, and Abizanda and Lopez [2,3] have presented the same method in a different form.
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Interest in developing a method for predicting arterial oxygen tension following changes in inspired oxygen concentration (FIO2) has existed since the advent of oxygen therapy. Hess [1] has published a predictive formula to accomplish this, and Abizanda and Lopez [2,3] have presented the same method in a different form.
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The relationship between oxygen demand, oxygen uptake, and oxygen supply
Intensive Care Medicine, 1990Results of the relationships between oxygen supply, demand, and uptake can be used to interpret cardiac output values, identify types of acute circulatory failure, guide attempts to improve cellular function, and thus prevent the development of multiple organ failure and death. Five steps in the interpretation of cardiac output values are recommended: (
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Skin Permeability to Oxygen and Hyperbaric Oxygen
Archives of Surgery, 1970It has been assumed that exposure to oxygen and hyperbaric oxygen (HPO) is beneficial to hypoxic skin in part because oxygen directly penetrates the tissues. Thus, it was felt necessary to determine the extent of tissue permeability to oxygen in terms of elevation of the tissue oxygen tension (TOT).
Dale H. Heitkamp +3 more
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The motion of oxygen ions in oxygen
Journal of Physics B: Atomic and Molecular Physics, 1968The drift velocities of positive and negative ions produced in a glow discharge in oxygen were measured within the range 5 < E/p 0 < 100 v cm-1 torr-1 (E is the electric field and p 0 the gas pressure reduced to 0 °c) for values of p 0 in the range 7·71 to 0·83 torr. The results
P Howells, J Dutton
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Oxygen Activation and Oxygen Toxicity
Annual Review of Plant Physiology, 1982INTRODtTCTION ... .. .... . . ........ . . . . ....... . . . ... .. .. . .. . . .... . . . .. ... ....... .. . .. .. . . .... .. . .. .. . . ... . . . . 74 OXYGEN ACTIVATION AND REACTIVE OXYGEN SPECIES ... ..... . . . . . ..... . .. ...
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Clinical Use of Oxygen Stores: Pre-oxygenation and Apneic Oxygenation
1992During states of respiratory arrest the human oxygen stores may be used therapeutically, regardless of the origin, i.e. either prior to the routinely induced apnea for endotracheal intubation or as an emergency measure in any other case of apnea. The present considerations focus on the clinical use of the oxygen stores available, applying.
Rolf Zander, Fritz Mertzlufft
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