Athushi Ikehata

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Ten patients with active Crohn's disease who have been managed with parenteral-nutrition therapy were administered a lipid emulsion either with [containing 0.6 g eicosapentaenoic acid (EPA)] or without fish oil for 2 wk. We isolated polymorphonuclear leukocytes (PMNLs) from the patients before and after this treatment and measured the amounts of leukotriene(More)
BACKGROUND omega-Oxidation is regarded as the major pathway for leukotriene B4 (LTB4) metabolism. Very little is known about it in colonic mucosa with inflammatory bowel disease (IBD). METHODS We investigated the metabolic ratio of omega-oxidation to LTB4 biosynthesis in colonic mucosa from patients with IBD and control subjects. After incubation of(More)
omega-oxidation is regarded as the major pathway for the catabolism of leukotriene B4 (LTB4). To determine how LTB4 omega-hydroxylase is modulated in inflammatory bowel disease, we investigated the kinetic characteristics of this enzyme in 10 patients with Crohn's disease (CD), nine with ulcerative colitis (UC) and eight healthy control subjects. After(More)
omega-Oxidation is regarded as the major pathway for the metabolism and inactivation of leukotriene B4 (LTB4). To investigate the action of 5-aminosalicylic acid (5-ASA) on LTB4 omega-hydroxylase activity, we incubated human polymorphonuclear leukocytes (PMNLs) with 3H-labeled LTB4 after pre-incubation with various concentrations of 5-ASA. omega-oxidation(More)
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