Fig. 6From: The electroacupuncture-induced analgesic effect mediated by 5-HT1, 5-HT3 receptor and muscarinic cholinergic receptors in rat model of collagenase-induced osteoarthritisThe effects of each receptor agonists and antagonists on the pain threshold in CIOA rat model assessed by TFL (a) and PPT (b). *p < 0.05: compared with each groupBack to article page