Linked Life Data

16356636

Source:http://linkedlifedata.com/resource/pubmed/id/16356636

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
2005-12-26
pubmed:abstractText
There is convincing evidence that cytokines are involved in the inflammatory response following cerebral ischemia, but the interactions among the pro-inflammatory cytokines tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta and IL-6 in the early stage of ischemic reperfusion are not yet completely understood. In this study, we examined the early mRNA expressions of pro-inflammatory cytokines in the ischemic hippocampus after 30 min of bilateral common carotid artery occlusion in C57BL/6J wild-type (WT) and TNF-alpha, IL-1alpha/beta or IL-6 gene knockout (KO) mice utilizing real-time polymerase chain reaction. The mRNA expressions of the pro-inflammatory cytokines TNF-alpha, IL-6 and IL-1beta were significantly induced in ischemic WT mice compared with in the sham-operated mice. These increases peaked at 3 to 24 h for TNF-alpha, at 12 h for IL-1beta, and at 6 to 24 h for IL-6 after ischemia. The pattern of temporal expression of the cytokine mRNAs in ischemic gene KO mice, however, differed from that in WT mice. The TNF-alpha mRNA expression showed a similar temporal expression pattern in IL-6 KO mice compared to in WT mice following ischemic reperfusion, and the levels at all time points were lower than in WT mice. The IL-1beta mRNA level was very low in ischemic TNF-alpha KO mice and IL-6 KO mice in spite of a small peak observed in both at 24 h. The IL-6 mRNA level was significantly upregulated at all time points in both ischemic WT and TNF-alpha KO mice; however, the peak was delayed by 12-h in IL-1alpha/beta KO mice. In conclusion, the present study indicates that the rapid increases in cytokine levels are interdependent, interactive, and possibly modulate each other in the mouse hippocampus after transient global ischemia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
393
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
122-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Early increase in mRNA levels of pro-inflammatory cytokines and their interactions in the mouse hippocampus after transient global ischemia.
pubmed:affiliation
Department of Informative Clinical Medicine, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City 501-1194, Japan.
pubmed:publicationType
Journal Article, Comparative Study