Mubarak, Hanan A;
Mahmoud, Manal M;
Shoukry, Heba S;
Merzeban, Dina H;
Sayed, Safinaz S;
Rashed, Laila A
Protective effects of melatonin and glucagon‐like peptide‐1 receptor agonist (liraglutide) on gastric ischaemia–reperfusion injury in high‐fat/sucrose‐fed rats
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Media type:
E-Article
Title:
Protective effects of melatonin and glucagon‐like peptide‐1 receptor agonist (liraglutide) on gastric ischaemia–reperfusion injury in high‐fat/sucrose‐fed rats
Contributor:
Mubarak, Hanan A;
Mahmoud, Manal M;
Shoukry, Heba S;
Merzeban, Dina H;
Sayed, Safinaz S;
Rashed, Laila A
imprint:
Wiley, 2018
Published in:
Clinical and Experimental Pharmacology and Physiology, 45 (2018) 9, Seite 934-942
Description:
<jats:title>Summary</jats:title><jats:p>Ischaemia–reperfusion (I–R) injury is a serious pathology that is often encountered with thrombotic events, during surgery when blood vessels are cross‐clamped, and in organs for transplantation. Increased oxidative stress is the main pathology in I–R injury, as assessed in studies on the heart, kidney, and brain with little data available on gastric I–R (<jats:styled-content style="fixed-case">GI</jats:styled-content>–R). Liraglutide is a <jats:styled-content style="fixed-case">GLP</jats:styled-content>‐1 receptor agonist that has insulinotropic and weight reducing actions, and melatonin that has been much studied as a chronotropic hormone; have also studied as being anti‐oxidative stress agents. Herein, we aimed to explore the effects of liraglutide and melatonin on <jats:styled-content style="fixed-case">GI</jats:styled-content>–R injury with high‐fat/sucrose diet. Rats were divided into six groups; two diet‐control, two melatonin‐ and two liraglutide‐pretreated groups. All rats were subjected to 30 minutes of gastric ischaemia followed by 1 hour of reperfusion. Gastric tissues were assessed for the percentage of <jats:styled-content style="fixed-case">DNA</jats:styled-content> fragmentation, myeloperoxidase activity, total oxidant status, total antioxidant capacity, oxidative stress index, <jats:styled-content style="fixed-case">BMI</jats:styled-content> and histopathological examination. We showed that high‐fat feeding for four weeks prior to <jats:styled-content style="fixed-case">GI</jats:styled-content>–R significantly increased <jats:styled-content style="fixed-case">BMI</jats:styled-content>, oxidative stress indices and decreased total antioxidant capacity, with a neutral effect on apoptosis compared to controls. Pretreatment with either melatonin (10 mg/kg per day orally) or liraglutide (25 μg/kg per day ip) reverses these effects. Furthermore, both drugs reduced weight only in <jats:styled-content style="fixed-case">HFS</jats:styled-content>‐fed rats. Both liraglutide and melatonin have nearly similar protective effects on gastric I–R injury through decreasing the oxidative stress and apoptosis.</jats:p>