Table S1 details the animals used per experiment. In summary, male and female mice were postnatal ages P12-30, as well as 6 and 8 weeks old. We mainly used wild-type outbred strains CD-1 (Charles River) and Swiss (Janvier). Wnt1-Cre:R26Tomato (C57Bl6J background) (Danielian et al., 1998, Madisen et al., 2010) were used to isolate peripheral and enteric nervous system, and Vgat-Cre:tdTomato (heterozygous for Cre and homozygous for tdTomato; mixed CD-1, C57BL/6J background) (Ogiwara et al., 2013) to isolate inhibitory neurons (vesicular GABA transporter, Slc32a1). Mice were housed under standard conditions and provided chow and water ad libitum. All experimental procedures followed the guidelines and recommendations of Swedish animal protection legislation and were approved by the local ethical committee for experiments on laboratory animals (Stockholms Norra Djurförsöksetiska nämnd, Sweden).
