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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1996-10-29
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pubmed:abstractText |
The modulation of platelet activating factor (PAF) formation in duodenal tissue by nitric oxide (NO) released in response to castor oil was studied in rats pretreated with NG-nitro-L-arginine methyl ester (L-NAME, 6.25-25 mg/kg, i.p.), an inhibitor of NO synthase, NG-nitro-D-arginine methyl ester (D-NAME, 25 mg/kg, i.p.), the inactive enantiomer of L-NAME or isosorbide-5-mononitrate (IMN, 30-90 mg/kg, p.o.), a NO donating compound. Castor oil (2 ml/rat orally) increased PAF production in the rat duodenum 3 h after challenge. L-NAME, but not D-NAME, enhanced the amount of PAF formed by duodenal tissue, while IMN (30-90 mg/kg) counteracted the effects of L-NAME (12.5 mg/kg) and also reduced PAF release in the tissue of rats treated with castor oil. L-NAME 12.5 mg/kg, but not D-NAME, enhanced both macroscopic damage and acid phosphatase release induced by castor oil. These effects were reduced by a PAF antagonist BN 52021 (3-t-Butyl-hexahydro-4, 7b, 11-trihydroxy-8-methyl-9H-1, 7a-epoxymethano-1H, 6aH-cyclopenta [c] furo [2, 3b] furo [3'2':3,4] cyclopenta [1.2-d]furan-5,9,12(4H)trione) 10 and 20 mg/kg i.p. Such findings suggest that endogenous nitric oxide could reduce PAF biosynthesis in castor oil-treated rats.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Acid Phosphatase,
http://linkedlifedata.com/resource/pubmed/chemical/Castor Oil,
http://linkedlifedata.com/resource/pubmed/chemical/Cathartics,
http://linkedlifedata.com/resource/pubmed/chemical/Diuretics, Osmotic,
http://linkedlifedata.com/resource/pubmed/chemical/Isosorbide,
http://linkedlifedata.com/resource/pubmed/chemical/NG-Nitroarginine Methyl Ester,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide Synthase,
http://linkedlifedata.com/resource/pubmed/chemical/Platelet Activating Factor
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0028-1298
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
353
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
680-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8738301-Acid Phosphatase,
pubmed-meshheading:8738301-Animals,
pubmed-meshheading:8738301-Castor Oil,
pubmed-meshheading:8738301-Cathartics,
pubmed-meshheading:8738301-Diuretics, Osmotic,
pubmed-meshheading:8738301-Duodenum,
pubmed-meshheading:8738301-Isosorbide,
pubmed-meshheading:8738301-Male,
pubmed-meshheading:8738301-NG-Nitroarginine Methyl Ester,
pubmed-meshheading:8738301-Nitric Oxide,
pubmed-meshheading:8738301-Nitric Oxide Synthase,
pubmed-meshheading:8738301-Platelet Activating Factor,
pubmed-meshheading:8738301-Rats,
pubmed-meshheading:8738301-Rats, Wistar
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pubmed:year |
1996
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pubmed:articleTitle |
Relationship between nitric oxide and platelet-activating factor in castor-oil induced mucosal injury in the rat duodenum.
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pubmed:affiliation |
Department of Experimental Pharmacology, School of Pharmacy, Naples, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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