Jewett S L, Eddy L J, Hochstein P
Institute for Toxicology, University of Southern California, Los Angeles 90033.
Free Radic Biol Med. 1989;6(2):185-8. doi: 10.1016/0891-5849(89)90116-0.
The autoxidation of catecholamines has been proposed to be a source of oxygen radicals in ischemia-reperfusion injury. However, this autoxidation per se is extremely slow at physiological pH and therefore is unlikely to be a primary source of oxygen radicals in ischemia-reperfusion injury. On the other hand, oxygen radicals from catecholamines are more likely to arise through catalyzed oxidations involving enzymatic systems and/or metal ions. It is these latter reactions that may be of interest with respect to damage associated with ischemia-reperfusion injury.
儿茶酚胺的自氧化被认为是缺血再灌注损伤中氧自由基的一个来源。然而,在生理pH值下,这种自氧化本身极其缓慢,因此不太可能是缺血再灌注损伤中氧自由基的主要来源。另一方面,儿茶酚胺产生的氧自由基更可能是通过涉及酶系统和/或金属离子的催化氧化作用而产生的。正是这些后者的反应可能与缺血再灌注损伤相关的损害有关。