为探讨非肾上腺素能非胆碱能神经递质对胃窦环行肌功能的调节作用，在离体胃平滑肌上观察了嘌呤拟似物对胃窦环行肌自发性收缩活动和电活动的影响。
Objective: to observe the effects of water extracts of Pericarpium Arecae on contraction of isolated circular muscle strips of gastric body in guinea pigs and to explore its possible mechanisms.
NO被认为是非胆碱能、非肾上腺素能神经的递质或介质，参与痛觉传入与感觉传递过程。
Considered as a transmitter and medium of non-cholinergic and non-adrenergic nerves, no involves in introduction of sense of pain and transmission of aesthesis.
NO被认为是非胆碱能、非肾上腺素能神经的递质或介质，参与痛觉传入与感觉传递过程。
Considered as a transmitter and medium of non-cholinergic and non-adrenergic nerves, no involves in introduction of sense of pain and transmission of aesthesis.
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