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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1991-9-19
pubmed:abstractText
A recent outbreak of amnesic shellfish poisoning (ASP) in Atlantic Canada was characterized by severe gastrointestinal and central nervous system pathology. We examined the gastrointestinal effects of an acidic extract of blue mussels contaminated with domoic acid, the suspected toxin responsible for the ASP. We also tested the gastric effects pure domoic acid as well as a putative antagonist of neuroexcitant amino acid receptors, kynurenic acid. Mussel extract produced gastric (antral) ulcers, duodenal ulcers, gastric and duodenal hyperemia and bleeding, as well as peritoneal ascites. Kynurenic acid protected significantly against extract-induced gastropathy, particularly when given 60 or 75 minutes after extract. Pure domoic acid resulted in fatalities in all infant mice tested. These animals exhibited gastric bleeding and hemorrhage, especially at the higher doses employed. In otherwise untreated rats, kynurenic acid exerted significant anti-stress ulcer and anti-gastric secretory effects, but was less effective at blocking ethanol-induced gastric lesions. We suggest that there may be both peripheral as well as central effects of kynurenic acid in modulating normal and pathological gastric function.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0382-232X
pubmed:author
pubmed:issnType
Print
pubmed:volume
16 Suppl 1E
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
111-5
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Gastrointestinal effects of contaminated mussels and putative antidotes thereof.
pubmed:publicationType
Journal Article