Loss of Elp1 in the adult Tuba1a-Cre;Elp1^loxp/loxp cKO ENS causes an increase in myenteric neuron cell bodies. A, B, The number of Hu+ neurons (green) was determined in whole mounts of the ileum myenteric plexus of the adult Tuba1a-Cre;Elp1^loxp/loxp cKO and control mice; unpaired t test p = 0.0280, control n = 4, cKO n = 5 mice; 10 images/mouse quantified with a 20× objective.