Fontaine J, Grivegnee A R, Robberecht P
Br J Pharmacol. 1986 Nov;89(3):599-602. doi: 10.1111/j.1476-5381.1986.tb11161.x.
Vasoactive intestinal peptide (VIP) had two types of effects on the longitudinal muscle of the mouse distal colon. At low concentrations (10(-8) M) VIP induced a contraction which seemed to be related to the production of prostaglandins as it was abolished after preincubation with indomethacin (10(-6) M). At higher concentrations (3 X 10(-8) and 10(-7) M) VIP induced relaxations which developed slowly and were related to stimulation of the adenylate cyclase activity of the smooth muscle cells. There is no evidence that VIP is the non-adrenergic, non-cholinergic transmitter released by electrical stimulation in this preparation and responsible for rapid relaxation of the smooth muscle.
血管活性肠肽(VIP)对小鼠远端结肠的纵行肌有两种作用。低浓度(10⁻⁸ M)时,VIP引起收缩,这种收缩似乎与前列腺素的产生有关,因为在与吲哚美辛(10⁻⁶ M)预孵育后收缩被消除。高浓度(3×10⁻⁸和10⁻⁷ M)时,VIP引起缓慢发展的舒张,这与平滑肌细胞腺苷酸环化酶活性的刺激有关。没有证据表明VIP是该制剂中电刺激释放的非肾上腺素能、非胆碱能递质,且是负责平滑肌快速舒张的递质。