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. 2020 May 21;11:490. doi: 10.3389/fphys.2020.00490

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Copyright © 2020 Lajevardi and Paluzzi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Sample traces of 5-HT (A) and AedaeCAPA-PK1 (B) on spontaneous rectal contractions. Arrows indicate time of hormone application following baseline saline measurement. Contraction rate increased in response to 5-HT (A), whereas no change in activity was observed following AedaeCAPA-PK1 application (B).