rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
1984-7-9
|
pubmed:abstractText |
Pieces of rat brain incubated in oxygenated Tyrode solution were stimulated with the divalent cation ionophore A 23187. Incubation media were assayed for leukotriene (LT) C4-like immunoreactivity as well as for prostaglandin (PG) D2, 6-keto-PGF1 alpha and thromboxane (TX) B2 using specific and sensitive radioimmunoassays. Spontaneous release of the cyclooxygenase products but only of trace amounts of LTC4-like immunoreactivity was detected. Stimulation with ionophore A 23187 increased the level of cyclooxygenase products and to a smaller extent the level of LTC4-like immunoreactivity. Inhibition of cyclooxygenase by indomethacin was paralleled by a significantly increased release of LTC4-like material under basal conditions as well as in the presence of ionophore A 23187. On the other hand, the synthesis of LTC4-like material was significantly decreased by the lipoxygenase inhibitors quercetin and nordihydroguaiaretic acid. The presence of LT-like material in rat brain incubates was confirmed by bioassay. The capacity of brain tissue to synthesize LT-like material may be important for cerebral blood flow as well as cellular functions in the central nervous system.
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pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0014-2999
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
16
|
pubmed:volume |
99
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
57-62
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:6426980-6-Ketoprostaglandin F1 alpha,
pubmed-meshheading:6426980-Animals,
pubmed-meshheading:6426980-Arachidonic Acids,
pubmed-meshheading:6426980-Brain,
pubmed-meshheading:6426980-Calcimycin,
pubmed-meshheading:6426980-Cyclooxygenase Inhibitors,
pubmed-meshheading:6426980-Indomethacin,
pubmed-meshheading:6426980-Male,
pubmed-meshheading:6426980-Prostaglandin D2,
pubmed-meshheading:6426980-Prostaglandins D,
pubmed-meshheading:6426980-Rats,
pubmed-meshheading:6426980-Rats, Inbred Strains,
pubmed-meshheading:6426980-SRS-A,
pubmed-meshheading:6426980-Stimulation, Chemical,
pubmed-meshheading:6426980-Thromboxane B2
|
pubmed:year |
1984
|
pubmed:articleTitle |
Formation of leukotriene C4-like material by rat brain tissue.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|