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Oxygen effect information


In biochemistry, the oxygen effect refers to a tendency for increased radiosensitivity of free living cells and organisms in the presence of oxygen than in anoxic or hypoxic conditions, where the oxygen tension is less than 1% of atmospheric pressure (i.e., <1% of 101.3 kPa, 760 mmHg or 760 torr).

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Oxygen effect

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biochemistry, the oxygen effect refers to a tendency for increased radiosensitivity of free living cells and organisms in the presence of oxygen than in anoxic...

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Oxygen toxicity

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Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen (O 2) at increased partial pressures. Severe cases can...

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Bohr effect

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Bohr effect is a phenomenon first described in 1904 by the Danish physiologist Christian Bohr. Hemoglobin's oxygen binding affinity (see oxygen–haemoglobin...

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Oxygen

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Oxygen is a chemical element; it has symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal...

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Oxygen saturation

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Oxygen saturation (symbol SO2) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of...

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Oxygen enhancement ratio

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The oxygen enhancement ratio (OER) or oxygen enhancement effect in radiobiology refers to the enhancement of therapeutic or detrimental effect of ionizing...

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Fast neutron therapy

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the generation of reactive oxygen species, see free radicals. The neutron is uncharged and damages cells by direct effect on nuclear structures. Malignant...

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Oxygen therapy

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Oxygen therapy, also referred to as supplemental oxygen, is the use of oxygen as medical treatment. Supplemental oxygen can also refer to the use of oxygen...

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Chemical oxygen demand

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providing a metric to determine the effect an effluent will have on the receiving body, much like biochemical oxygen demand (BOD). The basis for the COD...

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Isotopes of oxygen

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section than any stable isotope of oxygen and its number density is twice as high in water as that of oxygen so that the effect is negligible. As some methods...

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Effect of oxygen on chronic obstructive pulmonary disease

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In some individuals, the effect of oxygen on chronic obstructive pulmonary disease is to cause increased carbon dioxide retention, In individuals with...

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Relative biological effectiveness

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death, and the oxygen tension of the tissues or so-called oxygen effect. The absorbed dose can be a poor indicator of the biological effect of radiation...

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Haldane effect

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from oxygen-consuming tissues, the Haldane effect promotes dissociation of carbon dioxide from hemoglobin in the presence of oxygen. In the oxygen-rich...

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Geological history of oxygen

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photosynthesis evolved, Earth's atmosphere had no free oxygen (O2). Small quantities of oxygen were released by geological and biological processes, but...

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Oxygen evolution

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chemical reaction, usually from water. Oxygen evolution from water is effected by oxygenic photosynthesis, electrolysis of water, and thermal decomposition...

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Pasteur effect

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The Pasteur effect describes how available oxygen inhibits ethanol fermentation, driving yeast to switch toward aerobic respiration for increased generation...

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VO2 max

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V̇O2 max (also maximal oxygen consumption, maximal oxygen uptake or maximal aerobic capacity) is the maximum rate of oxygen consumption attainable during...

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Facultative anaerobic organism

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implications for the effect of oxygen on the glucose metabolism of E. coli K-12 in relation to the mechanism of the Pasteur effect. There may exist a core...

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Hyperbaric medicine

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breathing pure oxygen under normobaric conditions (i.e. at normal atmospheric pressure). This effect is achieved by an increase in the oxygen transport capacity...

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Inductive effect

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The hydrogen-chlorine bond in HCl or the hydrogen-oxygen bonds in water are typical. The effect of the sigma electron displacement towards the more...

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Hemoglobin

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or Hgb) is a protein containing iron that facilitates the transport of oxygen in red blood cells. Almost all vertebrates contain hemoglobin, with the...

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Root effect

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oxygen. The Root effect is to be distinguished from the Bohr effect where only the affinity to oxygen is reduced. Hemoglobins showing the Root effect...

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Oxygen plant

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Oxygen plants are industrial systems designed to generate oxygen. They typically use air as a feedstock and separate it from other components of air using...

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Oliver Scott

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Medicine (1987–88) Oliver Scott was best known for his research on the oxygen effect in radiotherapy. Oliver Scott provided anonymous funding to the British...

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Blood

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other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same...

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FLASH Radiotherapy

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known as the oxygen effect, this is the basis of one of the first and most widely investigated hypotheses which could explain the FLASH effect. Many research...

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