Linked Life Data

2225227

Source:http://linkedlifedata.com/resource/pubmed/id/2225227

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-12-12
pubmed:abstractText
Intestinal ischemia, however, caused, is still a serious and growing clinical problem with an unacceptable mortality rate of over 60%. This high mortality rate is mainly due to the fact that the patients are not admitted to the hospital or not treated early enough. Even if the patients are operated on within 24 h, their mortality rate is still over 50%, and those surviving the initial treatment suffer from postischemic complications. These damages have been accounted until now to tissue ischemia. It has been proven experimentally that also reperfusion or revascularization after time-limited ischemia add to the tissue damages observed, due to the formation of O2-radicals. Thereby the prerequisites for the production of these radicals (the conversion of xanthine dehydrogenase to xanthine oxidase and the increase of hypoxanthine concentrations in the tissue and plasma) are generated during tissue ischemia. These radicals damage directly or initiate several vicious circles leading to mucosal lesions, impaired intestinal function and an enhanced absorption of bacteria and endotoxin. Various substances (SOD, catalase, DMSO, allopurinol, deferoxamine etc.) detoxify oxygen radicals or inhibit the pathomechanisms leading to the enhanced radical generation. Hopefully, the combination of early revascularization with these already available scavengers will improve the high mortality and morbidity of patients suffering from intestinal ischemia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0009-2797
pubmed:author
pubmed:issnType
Print
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
141-61
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Oxygen radicals in intestinal ischemia and reperfusion.
pubmed:affiliation
Dept. of General Surgery, University of Ulm, F.R.G.
pubmed:publicationType
Journal Article, Review