Hui-Bin Qi1, Jin-Yan Luo, Xin Liu. 1. Department of Gastroenterology, Second Hospital of Xi'an Jiaotong University, Xi'an 710004, Shannxi Province, China. qihuibin123@hotmail.com
Abstract
AIM: To evaluate the effects of prucalopride on intestinal prokinetic activity in fast rats and to provide experimental basis for clinical treatment of gastrointestinal motility diseases. METHODS: Gastrointestinal propulsion rate was measured by the migration rate of activated charcoal, which reflexes gastrointestinal motility function. 120 Spraque-Dawley rats were randomly divided into four groups and received an intravenous injection of physiological saline (served as control), prucalopride 1 mg/kg, prucalopride 2 mg/kg and cisapride 1 mg/kg, respectively. The gastrointestinal propulsion rate was measured 1, 2 or 4 hours after intravenous injection of the drugs. RESULTS: Significant accelerations of gastrointestinal propulsion rate in prucalopride 1 mg/kg and 2 mg/kg groups were found compared with control group at 2 and 4 hours(83.2 %+/-5.5 %, 81.7 %+/-8.5 % vs 70.5 %+/-9.2 %, P<0.01; 91.2 %+/-2.2 %, 91.3 %+/-3.9 % vs 86.8 %+/-2.6 %, P<0.01). The gastrointestinal propulsion rates at 1, 2 or 4 hours were faster in prucalopride 1 mg/kg and 2 mg/kg groups than in cisapride group (84.0 %+/-11.7 %, 77.1 %+/-11.9 % vs 66.3 %+/-13.6 %, P<0.01, P<0.05; 83.2 %+/-5.5 %, 81.7 %+/- 8.5 % vs 75.4 %+/-5.9 %, P<0.01, P<0.05; 91.2 %+/-2.2 %, 91.3 %+/-3.9 % vs 88.6 %+/-3.5 %,P<0.05, P<0.05). No difference of gastrointestinal propulsion rate was found between prucalopride 1 mg/kg group and prucalopride 2 mg/kg group (P>0.05). CONCLUSION: Prucalopride accelerates intestinal motility in fast rats, and has no dose dependent effect.
AIM: To evaluate the effects of prucalopride on intestinal prokinetic activity in fast rats and to provide experimental basis for clinical treatment of gastrointestinal motility diseases. METHODS:Gastrointestinal propulsion rate was measured by the migration rate of activated charcoal, which reflexes gastrointestinal motility function. 120 Spraque-Dawley rats were randomly divided into four groups and received an intravenous injection of physiological saline (served as control), prucalopride 1 mg/kg, prucalopride 2 mg/kg and cisapride 1 mg/kg, respectively. The gastrointestinal propulsion rate was measured 1, 2 or 4 hours after intravenous injection of the drugs. RESULTS: Significant accelerations of gastrointestinal propulsion rate in prucalopride 1 mg/kg and 2 mg/kg groups were found compared with control group at 2 and 4 hours(83.2 %+/-5.5 %, 81.7 %+/-8.5 % vs 70.5 %+/-9.2 %, P<0.01; 91.2 %+/-2.2 %, 91.3 %+/-3.9 % vs 86.8 %+/-2.6 %, P<0.01). The gastrointestinal propulsion rates at 1, 2 or 4 hours were faster in prucalopride 1 mg/kg and 2 mg/kg groups than in cisapride group (84.0 %+/-11.7 %, 77.1 %+/-11.9 % vs 66.3 %+/-13.6 %, P<0.01, P<0.05; 83.2 %+/-5.5 %, 81.7 %+/- 8.5 % vs 75.4 %+/-5.9 %, P<0.01, P<0.05; 91.2 %+/-2.2 %, 91.3 %+/-3.9 % vs 88.6 %+/-3.5 %,P<0.05, P<0.05). No difference of gastrointestinal propulsion rate was found between prucalopride 1 mg/kg group and prucalopride 2 mg/kg group (P>0.05). CONCLUSION:Prucalopride accelerates intestinal motility in fast rats, and has no dose dependent effect.
Authors: K Krogh; M Bach Jensen; P Gandrup; S Laurberg; J Nilsson; R Kerstens; M De Pauw Journal: Scand J Gastroenterol Date: 2002-04 Impact factor: 2.423
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