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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2008-2-18
pubmed:abstractText
Hypoxic ischemic (HI) injury in neonates damages brain tissues. We examined the mechanism of hyperbaric oxygen preconditioning (HBO-PC) in neonatal HI rat model. Seven-day-old rat pups were subjected to left common carotid artery ligation and hypoxia (8% oxygen at 37 degrees C) for 90 min. HBO (100% O(2), 2.5 atmospheres absolute for 2.5 h) were administered by placing pups in a chamber 24 h before HI insult. Brain injury was assessed by the survival rate, 2,3,5-triphenyltetrazolium chloride (TTC), Nissl, TUNEL straining and caspase-3,caspase-9 activities after HI. In HBO preconditioned animals, survival rate was increased, infarct ratio was decreased, and the positive stained TUNEL cells were reduced, accompanied by the suppression of caspase-3 and -9 activities. These results indicate that a single HBO-PC appears to provide brain protection against HI insult via inhibition of neuronal apoptosis pathways.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
1196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
151-6
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Mechanism of hyperbaric oxygen preconditioning in neonatal hypoxia-ischemia rat model.
pubmed:affiliation
Department of Pathology, Weifang Medical College, Shandong, 261042, PR China.
pubmed:publicationType
Journal Article