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Effect of piperine, the active ingredient of black pepper, on intestinal secretion in mice.

机译:黑胡椒的活性成分胡椒碱对小鼠肠道分泌的影响。

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We have investigated the effect piperine on castor oil-stimulated fluid accumulation in the mouse small intestine. Piperine (2.5-20 mg/kg, i.p.) dose-dependently reduced castor oil-induced intestinal fluid accumulation. The inhibitory effect of piperine (10 mg/kg i.p.) was strongly attenuated in capsaicin (75 mg/kg in total, s.c.)-treated mice but it was not modified by the vanilloid receptor antagonist capsazepine (30 mg/kg i.p.). Pretreatment of mice with hexamethonium (1 mg/kg i.p.), naloxone (2 mg/kg i.p.), yohimbine (1 mg/kg i.p.) or the cannabinoid CB(1) receptor antagonist SR141716A (0.3 mg/kg i.p.) did not modify the inhibitory effect of piperine (10 mg/kg i.p.). These results suggest that piperine reduces castor oil-induced fluid secretion with a mechanism involving capsaicin-sensitive neurons, but not capsazepine-sensitive vanilloid receptors.
机译:我们已经研究了胡椒碱对蓖麻油刺激的小鼠小肠中液体积聚的影响。胡椒碱(2.5-20 mg / kg,i.p.)剂量依赖性减少蓖麻油诱导的肠液积聚。在辣椒素(总共s.c.)处理的辣椒素(总计75 mg / kg)中,胡椒碱(10 mg / kg i.p.)的抑制作用被大大减弱,但未被类香草酸受体拮抗剂辣椒素(30 mg / kg i.p.)改变。用六甲铵(1 mg / kg ip),纳洛酮(2 mg / kg ip),育亨宾(1 mg / kg ip)或大麻素CB(1)受体拮抗剂SR141716A(0.3 mg / kg ip)预处理小鼠没有改变胡椒碱的抑制作用(10 mg / kg ip)。这些结果表明,胡椒碱通过一种涉及辣椒素敏感的神经元但不影响辣椒素敏感的类香草素的机制来减少蓖麻油诱导的液体分泌。

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