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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1999-1-14
pubmed:abstractText
To analyze the effect of lecithinized superoxide dismutase (SOD) on superoxide accumulation after traumatic brain injury (TBI) in rats, we studied the SOD activity by NBT-reducing method and the expression of Cu,Zn-SOD mRNA by Northern blot analysis. As determined by the specific gravity method, the administration of lecithinized SOD decreased brain edema in the periphery of the lesion at 6 hr after contusion. SOD activity, without lecithinized SOD administration, increased at the peripheral portion at 30 min after contusion, but decreased to normal level at 6 hr after TBI. By administration of lecithinized SOD, the increase of SOD activity was preserved until 6 hr after TBI. The expression of Cu,Zn-SOD mRNA increased in the core lesion, peripheral portion, and contralateral hemisphere until 6 hr after TBI, then was suppressed in all three areas by lecithinized SOD. These results support the hypothesis that superoxide anions may play an important role in the development of brain edema after TBI, and that leciyhinized SOD appears to prevent brain edema through a protective effect against superoxide anions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0065-1419
pubmed:author
pubmed:issnType
Print
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
142-5
pubmed:dateRevised
2004-11-12
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Effects of lecithinized SOD on sequential change in SOD activity after cerebral contusion in rats.
pubmed:affiliation
Department of Neurological Surgery, Okayama University Medical School, Japan.
pubmed:publicationType
Journal Article