Oxidative Stress and Antioxidant Activity in Hypothermia and Rewarming : Can RONS Modulate the Beneficial Effects of Therapeutic Hypothermia?

Hypothermia is a condition in which core temperature drops below the level necessary to maintain bodily functions. The decrease in temperature may disrupt some physiological systems of the body, including alterations in microcirculation and reduction of oxygen supply to tissues. The lack of oxygen c...

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Bibliographic Details
Published in:Oxidative medicine and cellular longevity 2013-01, Vol.2013 (2013), p.1-10
Main Authors: Alva, Norma, Palomeque, Jesús, Carbonell, Teresa
Format: Article
Language:English
Subjects:
Animals
Anoxemia
Anoxèmia
Antioxidants - pharmacology
Apoptosis - drug effects
Estrès oxidatiu
Hipotèrmia
Humans
Hypothermia
Hypothermia, Induced
Oxidative stress
Oxidative Stress - drug effects
Reactive Nitrogen Species - metabolism
Review
Rewarming
Therapeutic use
Ús terapèutic
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Summary:Hypothermia is a condition in which core temperature drops below the level necessary to maintain bodily functions. The decrease in temperature may disrupt some physiological systems of the body, including alterations in microcirculation and reduction of oxygen supply to tissues. The lack of oxygen can induce the generation of reactive oxygen and nitrogen free radicals (RONS), followed by oxidative stress, and finally, apoptosis and/or necrosis. Furthermore, since the hypothermia is inevitably followed by a rewarming process, we should also consider its effects. Despite hypothermia and rewarming inducing injury, many benefits of hypothermia have been demonstrated when used to preserve brain, cardiac, hepatic, and intestinal function against ischemic injury. This review gives an overview of the effects of hypothermia and rewarming on the oxidant/antioxidant balance and provides hypothesis for the role of reactive oxygen species in therapeutic hypothermia.
ISSN:1942-0900
1942-0994
DOI:10.1155/2013/957054