alexa Effects of leukocyte and platelet depletion on ischemia--reperfusion injury to dog pancreas.
Pharmaceutical Sciences

Pharmaceutical Sciences

Biochemistry & Pharmacology: Open Access

Author(s): Kuroda T, Shiohara E, Homma T, Furukawa Y, Chiba S

Abstract Share this page

Abstract BACKGROUND/AIMS: Ischemia-reperfusion injury has been studied in various organs. Effects of leukocyte and platelet depletion on ischemia-reperfusion injury were evaluated using the isolated, perfused dog pancreas in vivo. METHODS: Pancreatic exocrine and endocrine functions were stimulated by an intra-arterial injection of cholecystokinin (10(-12) mol) and intravenous injection of glucose and arginine (1 g/kg body wt), respectively. The functions before and after 60 minutes of ischemia were evaluated in the no treatment and in the leukocyte and platelet depletion groups. RESULTS: Cholecystokinin increased prostaglandin I2 and thromboxane A2 production and stimulated exocrine pancreatic secretion. Glucose and arginine stimulated insulin and glucagon release from the pancreas. Sixty minutes of ischemia followed by 60 minutes of reperfusion damaged the pancreatic acinar and ductular cells. Ischemia of 60 minutes followed by 90 minutes of reperfusion damaged beta cells. Removal of leukocytes (97.6\%) and platelets (99.4\%) by using a filter throughout the experiment prevented the ischemia-reperfusion injury, reduced plasma lipid peroxide and thromboxane A2, and increased prostaglandin I2 levels. CONCLUSIONS: Leukocytes and platelets seem to damage the pancreas during ischemia-reperfusion by increasing the peroxidation of structurally important cell membrane lipids and reduced the thromboxane A2 prostaglandin I2 ratio, a predictor of cellular injury.
This article was published in Gastroenterology and referenced in Biochemistry & Pharmacology: Open Access

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version