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Effect of orexin-a on ischemia-reperfusion-induced gastric damage in rats (Bulbul, Mehmet.)
Bibliographical information (record 264689)
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Effect of orexin-a on ischemia-reperfusion-induced gastric damage in rats
Author:
 Bulbul, Mehmet. Search Author in Amazon Books

Publisher:
Tokyo
Edition:
 2008.
Classification:
 WI 140
URL:
http://library.neu.edu.tr:2048/login?url=http://dx.doi.org/10.1007/s00535-007-2148-3
Detailed notes
    - Background. Orexins are involved in the regulation of sleeping behavior and energy homeostasis, and they are also implicated in the regulation of gastrointestinal functions. Previous reports have demonstrated the expression of orexin receptors in the gastrointestinal system. The aim of this study was to investigate the gastroprotective effect of orexin-A in ischemia-reperfusion-induced gastric mucosal injury. Methods. The gastric ischemia-reperfusion model was established by clamping the celiac artery for 30 min and reperfusing for 60 min. Orexin-A was administered in doses of 500 pmol center dot kg(-1)center dot min(-1) by infusion throughout the ischemia-reperfusion period. The mean lesion area, gastric prostaglandin E(2) and mucus content, myeloperoxidase activity, and production of thiobarbituric acid reactive substances were measured. Results. Orexin-A significantly attenuated the ischemia-reperfusion-induced gastric lesions and also decreased myeloperoxidase activity and the thiobarbituric acid reactive substances content in gastric mucosa of rats exposed to ischemia-reperfusion. However, the decline in gastric prostaglandin E(2) and mucus content was not restored by orexin-A treatment. Conclusions. Orexin-A exhibited a gastroprotective effect against ischemia-reperfusion-induced lesions by decreasing neutrophil activation and lipid peroxidation.
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Section
EOL-169
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NEU Grand LibraryOnline (WI 140 .E34 2008)
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