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Intracolonic administration of zileuton, a selective 5-lipoxygenase inhibitor, accelerates healing in a rat model of chronic colitis

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dc.creator Bertrán, X.
dc.creator Mañé Almero, Josep
dc.creator Fernández Bañares, Fernando
dc.creator Castellà, E.
dc.creator Bartolí, R.
dc.creator Ojanguren Sabán, Isabel
dc.creator Esteve i Comas, Maria
dc.creator Gassull, Miquel Àngel
dc.date 2011-07-07T12:30:33Z
dc.date 2011-07-07T12:30:33Z
dc.date 1996
dc.date.accessioned 2024-12-16T10:27:15Z
dc.date.available 2024-12-16T10:27:15Z
dc.identifier 0017-5749
dc.identifier http://hdl.handle.net/2445/18658
dc.identifier 160920
dc.identifier 8984030
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/22138
dc.description BACKGROUND: 5-Lipoxygenase products play a part in inflammatory response. AIMS: The effect of intracolonic administration of zileuton (a 5-lipoxygenase inhibitor) on colonic damage and eicosanoid local release was assessed in a rat model of colitis. METHODS: Ninety rats with trinitrobenzenesulphonic acid induced colitis were randomised to receive placebo, 5-aminosalicylic acid (50 mg/kg), or zileuton (50 mg/kg) intracolonically for four weeks. Local eicosanoid release was monitored by intracolonic dialysis throughout the study. The colon was removed for macroscopic and histological assessment at weeks 1, 2, and 4 after colitis induction in 10 rats of each group. RESULTS: Zileuton significantly reduced macroscopic damage score after four weeks of treatment in comparison with the other two groups (p = 0.034). In addition, zileuton administration significantly increased the intracolonic release of both thromboxane B2 at week 1 (p = 0.05) and prostaglandin E2 at weeks 2 and 4 (p < 0.05). Zileuton and 5-aminosalicylic acid decreased leukotriene B4 release by 90% at day 3. CONCLUSIONS: Intracolonic zileuton, compared with 5-aminosalicylic acid and placebo, seems to improve the course of the disease in a model of chronic colitis. This effect may be related to an increased and maintained production of prostaglandin E2 together with inhibition of leukotriene B4 synthesis.
dc.format 6 p.
dc.format application/pdf
dc.language eng
dc.publisher BMJ Group
dc.relation Reproducció digital del document publicat a: http://dx.doi.org/10.1136/gut.38.6.899
dc.relation Gut, 1996, vol. 38, núm. 6, p. 899-904
dc.relation http://dx.doi.org/10.1136/gut.38.6.899
dc.rights (c) BMJ Publishing Group Ltd and British Society of Gastroenterology, 1996
dc.rights info:eu-repo/semantics/openAccess
dc.source Articles publicats en revistes (Medicina)
dc.subject Colitis
dc.subject Còlon
dc.subject Antienzims
dc.subject Terapèutica
dc.subject Colitis
dc.subject Colon
dc.subject Enzyme inhibitors
dc.subject Therapeutics
dc.title Intracolonic administration of zileuton, a selective 5-lipoxygenase inhibitor, accelerates healing in a rat model of chronic colitis
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion


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