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Nitric oxide and endothelin relationship in intestinal ischemia/reperfusion injury

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dc.contributor.authorDAĞLI, EMRULLAH TOLGA
dc.contributor.authorsDurakbasa, C. U.; Dagli, T. E.; Mouni, H.; Haklar, G.; Bilsel, A. S.; Yuksel, M.; Aktan, A. O.
dc.date.accessioned2022-03-15T11:15:22Z
dc.date.available2022-03-15T11:15:22Z
dc.date.issued1998
dc.description.abstractGastrointestinal mucosal blood flow is dependent on a balanced release of vasoactive substances from endothelium. Nitric oxide (NO) may increase the flow by vasodilatation and/or antiaggregation whereas endothelin (ET) may decrease it by vasoconstriction and aggregation. NO and ET may have counterbalancing effects on each other in tissue damage. In order to test this hypothesis, in this study on rats, L-arginine to increase NO levels and N(G)-nitro-L-arginine methyl esther (L-NAME) to decrease NO levels have been used in an intestinal ischemia/ reperfusion (I/R) injury model and portal vein ET response was evaluated. Lipid peroxidation product measurements and chemiluminescence (CL) studies were also carried out in ileal tissue samples. Intestinal I/R injury caused an increase in portal venous ET levels with levels of 9.4+/-0.5 fmol/ml in sham operation and 14.8+/-1.6 fmol/ml in I/R group. ET level of L-NAME-sh group was lower than that of sham-operated group and also ET level of L-NAME-I/R group was lower than that of I/R group. This yielded the conclusion that inhibition of NO synthesis decreases portal venous ET levels in this model. Increased NO production by L-arginine caused increased ET levels in sham operated groups but this effect was not observed in I/R injury state. This study also showed that inhibition of NO synthesis has a protective role by reducing the reperfusion damage in this model. It is likely that NO and ET have a feedback effect on each other both under physiologic conditions and I/R injury.
dc.identifier.doi10.1016/s0952-3278(98)90099-0
dc.identifier.issn0952-3278
dc.identifier.pubmedPMID: 10102383
dc.identifier.urihttps://hdl.handle.net/11424/249432
dc.language.isoeng
dc.relation.ispartofProstaglandins, Leukotrienes, and Essential Fatty Acids
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectFemale
dc.subjectAnimals
dc.subjectRats
dc.subjectRats, Wistar
dc.subjectLipid Peroxidation
dc.subjectLuminescent Measurements
dc.subjectIntestinal Mucosa
dc.subjectNitric Oxide
dc.subjectReperfusion Injury
dc.subjectArginine
dc.subjectEnzyme Inhibitors
dc.subjectNG-Nitroarginine Methyl Ester
dc.subjectEndothelins
dc.titleNitric oxide and endothelin relationship in intestinal ischemia/reperfusion injury
dc.typearticle
dspace.entity.typePublication
local.avesis.idfaccbe6a-f538-4791-bbca-8087663383d8
local.import.packageSS23
local.import.sourcePubMed
local.indexed.atPUBMED
oaire.citation.endPage383
oaire.citation.startPage379
oaire.citation.titleProstaglandins, Leukotrienes, and Essential Fatty Acids
oaire.citation.volume6
relation.isAuthorOfPublicationc7f9c4a9-8b86-46b2-aefe-03541e0f7f7c
relation.isAuthorOfPublication.latestForDiscoveryc7f9c4a9-8b86-46b2-aefe-03541e0f7f7c

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