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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-3-17
pubmed:abstractText
Selective inhibition of neuronal and inducible nitric oxide synthase (NOS) with 2-iminobiotin previously showed a reduction in brain cell injury. In the present study, we investigated the effects of 2-iminobiotin treatment on insulin-like growth factor-1 (IGF-1) expression, caspase activity and cytokine expression in a newborn piglet model of perinatal hypoxia-ischaemia. Newborn piglets were subjected to 1 h of hypoxia-ischaemia and were treated intravenously with vehicle or 2-iminobiotin. Vehicle-treated piglets showed reduced IGF-1 mRNA expression and increased caspase-3 activity and DNA fragmentation. 2-Iminobiotin treatment, administered immediately upon reperfusion, prevented these observations. No differences in caspase-8 and -9 activity and cytokine [interleukin (IL)-1alpha/beta, IL-6, tumour necrosis factor (TNF)-alpha, transforming growth factor (TGF)-beta] mRNA expression were demonstrated between vehicle- and 2-iminobiotin-treated piglets at 24 h following hypoxia-ischaemia. IGF-1 mRNA correlated inversely with caspase-3 and transferase-mediated dUTP-biotin in situ nick end labelling score in the cortex, but positively with caspase-8. Cytokine mRNA did not correlate with IGF-1 mRNA, caspase-3 activity or DNA fragmentation. The present results indicate that the previously demonstrated neuroprotective effect of 2-iminobiotin treatment after perinatal hypoxia-ischaemia coincided with a preservation of the endogenous IGF-1 production and reduced caspase-3 activity, but not with a significant decrease in cytokine production.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0378-5866
pubmed:author
pubmed:copyrightInfo
Copyright 2002 S. Karger AG, Basel
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
396-404
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed-meshheading:12640178-Animals, pubmed-meshheading:12640178-Animals, Newborn, pubmed-meshheading:12640178-Biotin, pubmed-meshheading:12640178-Brain, pubmed-meshheading:12640178-Caspases, pubmed-meshheading:12640178-Cytokines, pubmed-meshheading:12640178-DNA Fragmentation, pubmed-meshheading:12640178-Enzyme Activation, pubmed-meshheading:12640178-Enzyme Inhibitors, pubmed-meshheading:12640178-Hypoxia-Ischemia, Brain, pubmed-meshheading:12640178-In Situ Nick-End Labeling, pubmed-meshheading:12640178-Insulin-Like Growth Factor I, pubmed-meshheading:12640178-Models, Animal, pubmed-meshheading:12640178-Nitric Oxide Synthase, pubmed-meshheading:12640178-Nitric Oxide Synthase Type I, pubmed-meshheading:12640178-Nitric Oxide Synthase Type II, pubmed-meshheading:12640178-Primed In Situ Labeling, pubmed-meshheading:12640178-RNA, Messenger, pubmed-meshheading:12640178-Swine
pubmed:year
2002
pubmed:articleTitle
Effects of selective nitric oxide synthase inhibition on IGF-1, caspases and cytokines in a newborn piglet model of perinatal hypoxia-ischaemia.
pubmed:affiliation
Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
pubmed:publicationType
Journal Article