Maggi C A, Santicioli P, Giuliani S, Abelli L, Meli A
Eur J Pharmacol. 1986 Jul 31;126(3):333-6. doi: 10.1016/0014-2999(86)90068-3.
Neurokinins activate a series of tetrodotoxin (TTX)-insensitive rhythmic contractions of the rat isolated ureter. Field stimulation or capsaicin (1-3 microM) produced a transient inhibition of neurokinin-activated ureteral motility in preparations from control but not from capsaicin-pretreated (50 mg/kg s.c.) rats. The inhibitory action of field stimulation but not that of capsaicin was prevented by TTX. It is concluded that a capsaicin-sensitive inhibitory innervation exists in the rat ureter.
神经激肽可激活大鼠离体输尿管一系列对河豚毒素（TTX）不敏感的节律性收缩。在对照大鼠制备的标本中，场刺激或辣椒素（1 - 3微摩尔）可对神经激肽激活的输尿管运动产生短暂抑制，但在经辣椒素预处理（50毫克/千克皮下注射）的大鼠制备的标本中则不会。河豚毒素可阻断场刺激的抑制作用，但不能阻断辣椒素的抑制作用。由此得出结论，大鼠输尿管中存在对辣椒素敏感的抑制性神经支配。
