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Fig. 3 | BMC Complementary Medicine and Therapies

Fig. 3

From: Arecae pericarpium extract induces porcine lower-esophageal-sphincter contraction via muscarinic receptors

Fig. 3

Effects of tetrodotoxin (TTX) on the contractions of porcine lower esophageal sphincters (LES) induced by Arecae pericarpium (A. pericarpium) extracts and arecoline. A concentration of 10− 6 M TTX had no significant inhibitory effect on the contractions of sling and clasp muscles induced by (A) extracts 1 and 2 of A. pericarpium (n = 4) or (B) arecoline (n ≥ 4)

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