Objective To evaluate the alterations of thromboxane (TXB_2)、 prostacyclin (PGI_2)in murine acute pancreatitis (AP) and the therapeutic effect of calcium channel bocker-verapamil. MethodsA rat AP model was established to observe the alterations of plasma levels of TXB_2, 6-keto-PGF_ 1? and TXB_2/6-keto-PGF_ 1? ratio and the effect of verapamil. Pancreatic histology was examined by light and electron microscopy. ResultsAt 16 and 24 hours after induction of AP, the plasma levels of TXB_2[(1112?235)pg/ml、(1265?162)pg/ml] and TXB_2/6-keto-PGF_ 1? ratio(9.9?0.9,10.2?1.3)increased significantly. With varapamil therapy, the plasma levels of TXB_2[(671?102)pg/ml、(697?93)pg/ml] and TXB_2/6-keto-PGF_ 1? ratio (6.9?2.2)、(6.4?0.7) were dramatically lower than those in control group (P
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