CaMKII is expressed by a subset of neurons in the ENS across multiple mammalian species.

<p>(A-C) Representative images illustrate that CaMKII-IR was localized in a subpopulation of rat myenteric neurons. Anti-Hu immunoreactivity was used to label all neurons. (D-F) Representative images show that CaMKII-IR was present in a subpopulation of anti-Hu-immunoreactive rat submucosal neurons. (G) The proportions of CaMKII-immunoreactive neurons in the myenteric plexus of multiple mammalian species. (H) The proportions of CaMKII-immunoreactive neurons in the submucosal plexus across multiple mammalian species.