Relative distribution of neurochemically-defined subpopulations in the submucous plexuses of the porcine colon.

<p>Specimens of the ISP and OSP were immunohistochemically stained for ChAT, nNOS, SP, VIP and the pan-neuronal marker Hu C/D. The numbers of neurons per ganglion for the respective subpopulations are presented as mean percentage ± SEM of Hu C/D-immunoreactive neurons per ganglion. ISP versus OSP ** <i>P</i> ≤ 0.001; N = 4, n = 12. See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0133350#pone.0133350.s003" target="_blank">S1 Table</a> for significant differences between subpopulations within the ISP or OSP.