Platelet activating factor (PAF) inhibitor (TCV-309) reduces caerulein- and PAF-induced pancreatitis. A morphologic and functional study in the rat.

Abstract

Caerulein-induced acute pancreatitis was studied in rats. Consistent with this type of acute pancreatitis morphological (edema, leukocytic infiltration and acinar cell vaculization) and biochemical (increase in pancreatic protein content. PAF release and serum amylase) changes developed 5 hours after caerulein administration. In addition increase in pancreatic weight and decrease in pancreatic blood flow were noticed. PAF administration caused pancreatic damage similar in some parameters to caerulein-induced pancreatitis, along with reduction of pancreatic blood flow, increase in pancreatic protein content, and serum amylase. TCV-309, a selective PAF antagonist, administered prior to caerulein and/or PAF, reduced caerulein-induced pancreatitis and prevented PAF-induced pancreatitis. Results of our present studies indicate the crucial role of PAF in pathogenesis of experimental acute pancreatitis.

• Authors: R Tomaszewska, A Dembiński, Z Warzecha, M Banaś, S J Konturek, J Stachura
• Journal: Journal of physiology and pharmacology : an official journal of the Polish Physiological Society (J Physiol Pharmacol) Vol. 43 Issue 4 Pg. 345-52 (Dec 1992) ISSN: 0867-5910 [Print] Poland
• PMID: 1294265 (Publication Type: Journal Article)

Chemical References

• Isoquinolines
• Platelet Activating Factor
• Pyridinium Compounds
• Tetrahydroisoquinolines
• Ceruletide
• TCV 309

Topics

• Acute Disease
• Animals
• Ceruletide (antagonists & inhibitors, toxicity)
• Isoquinolines (pharmacology)
• Male
• Pancreas (blood supply, pathology)
• Pancreatitis (chemically induced, pathology, prevention & control)
• Platelet Activating Factor (antagonists & inhibitors, toxicity)
• Pyridinium Compounds (pharmacology)
• Rats
• Rats, Wistar
• Regional Blood Flow (drug effects)
• Tetrahydroisoquinolines