Triepel J
Neurosci Lett. 1982 Mar 17;29(1):73-8. doi: 10.1016/0304-3940(82)90367-6.
Using the peroxidase-antiperoxidase (PAP) technique brains of colchicine-treated guinea pigs were investigated for the occurrence of vasoactive intestinal polypeptide-like immunoreactive (VIP-IR) neurons. VIP-IR perikarya were found not only in previously documented areas of the cortex, hypothalamus and substantia grisea centralis, but also in the nucleus nervi vagi, nucleus solitarius and the formatio reticularis.