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三种形式的生长抑素均兴奋大鼠胃窦环行肌条的活动,使其收缩波平均振幅增大,而对胃底、胃体和幽门等部位肌条的活动均无明显的影响。结果表明:生长抑素对大鼠离体胃平滑肌条的兴奋作用局限在胃窦环行肌区域带。
All three forms of somatostatin stimulate the activity of the muscle strips in the gastric antrum of rats and increase the average amplitude of the contractile waves. However, these three forms of somatostatin have no obvious effect on the activity of muscle strips in the stomach, body and pylorus. The results showed that the excitatory effect of somatostatin on gastric smooth muscle strips of rats was confined to the zone of gastric antral muscle.