Fig. 1From: 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 EA at 2Â Hz and 100Â Hz in the CIOA rat model assessed by TFL (a) and PPT (b). 2Â Hz EA treatment group (2Â Hz-EA, n = 10), 100Â Hz EA treatment group (100Â Hz-EA, n = 10) and no treatment group (None-Tx, n = 10). $p < 0.05, $$p < 0.01, $$$ p < 0.001: compared with None-Tx; **p < 0.01, ***p < 0.001: compared with None-Tx; #p < 0.05, ##p < 0.01, ###p < 0.001: compared with 100Â Hz-EABack to article page