The changes of pain-excited neurons, pain-inhibited neurons, and tail-flick latency were taken as observation indexes of pain threshold.
以痛兴奋神经元、痛抑制神经元和甩尾潜伏期的变化作为痛阈的观察指标。
Methods The rats' pain threshold was measured by tail-flick latency after oral administration of anti-pain powder.
方法口服抗痛粉，用辐射热甩尾法测定大鼠痛阈。
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