alexa Measurement of free radical production by in vivo microdialysis during ischemia reperfusion injury to skeletal muscle.
Anesthesiology

Anesthesiology

Journal of Pain & Relief

Author(s): Pattwell D, McArdle A, Griffiths RD, Jackson MJ

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Abstract Microdialysis techniques have been used to detect hydroxyl radical and superoxide release into the interstitial space of anaesthetized rat anterior tibialis muscles during a period of prolonged (4 h) limb ischemia and subsequent reperfusion. Data indicate that reperfusion of the ischemic skeletal muscle was associated with a large increase in hydroxyl radical activity in the interstitial space, which may contribute to the significant oxidation of muscle glutathione, protein thiols, and lipids also seen in this model. No evidence for release of superoxide into the interstitial space was found during reperfusion, although this was observed during electrically stimulated contractile activity of the rat limb muscle. These data imply that therapeutic approaches aimed at reduction of hydroxyl radical generation in the interstitial fluid are more likely to be beneficial in reduction of skeletal muscle reperfusion injury than approaches designed to scavenge superoxide radicals.
This article was published in Free Radic Biol Med and referenced in Journal of Pain & Relief

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