The results of our study demonstrate that, at dopamine tachyphylaxis of canine tracheal smooth muscle, histamine treatment could recover the contraction to dopamine.

• 研究结果显示，除了增强多巴胺引致的收缩外，组织胺处理亦可在狗气管平滑肌对多巴胺反应疲乏时恢复肌肉对多巴胺收缩的能力。