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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1990-4-13
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pubmed:abstractText |
Diethyldithiocarbamate (DDC) was injected subcutaneously in the rat and the mechanism of gastric ulcer formation was investigated. DDC induced gastric ulcers in a dose-dependent manner. DDC significantly suppressed gastric mucosal copper-zinc superoxide dismutase (Cu, Zn-SOD) activity at 2 hr. However, manganese-superoxide dismutase (Mn-SOD) activity was not changed. Gastric mucosal blood flow (GMBF) decreased to 52% of the control level at 2 hr after administration of DDC and gradually increased to reach the control level by 7 hr. A Shay rat preparation (4 hr) was used to study gastric secretion. DDC (200, 400 and 800 mg/kg) inhibited acid secretion to about 80% of the control level. Histopathological examination of the gastric mucosa after administration of DDC revealed mucosal congestive findings from 1 hr to 3 hr. These data suggested that the mechanism of DDC-induced gastric ulcer formation may be attributable to a decreased level of GMBF and O2- production owing to decreased SOD activity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0901-9928
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
66
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
133-7
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:2156249-Animals,
pubmed-meshheading:2156249-Ditiocarb,
pubmed-meshheading:2156249-Gastric Acid,
pubmed-meshheading:2156249-Gastric Juice,
pubmed-meshheading:2156249-Gastric Mucosa,
pubmed-meshheading:2156249-Male,
pubmed-meshheading:2156249-Rats,
pubmed-meshheading:2156249-Rats, Inbred Strains,
pubmed-meshheading:2156249-Regional Blood Flow,
pubmed-meshheading:2156249-Stomach Ulcer,
pubmed-meshheading:2156249-Superoxide Dismutase
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pubmed:year |
1990
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pubmed:articleTitle |
Mechanism of diethyldithiocarbamate-induced gastric ulcer formation in the rat.
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pubmed:affiliation |
Department of Public Health, Yamaguchi University School of Medicine, Ube, Japan.
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pubmed:publicationType |
Journal Article
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