Visualization of tyrosine hydroxylase-immunoreactive neurons in the cat dorsal motor vagal cells after treatment with parachlorophenylalanine.
We examined tyrosine hydroxylase-immunoreactive (TH-IR) neuronal structures in the cat dorsal motor nucleus of the vagus (DMV) and its adjacent regions. We identified only a few in the caudal part of the DMV and no TH-IR cells at all in its rostral portion. However, after treatment with parachlorophenylalanine (PCPA), numerous TH-IR perikarya were visualized in the DMV. Comments are made on the central catecholamine regulation and the possible influence of serotonin afferents on this nucleus.
D000818:Animals; D002415:Cats; D005260:Female; D010134:Fenclonine / Q000494:pharmacology*; D006651:Histocytochemistry; D008297:Male; D009474:Neurons / Q000201:enzymology*; D014446:Tyrosine 3-Monooxygenase / Q000032:analysis; D014630:Vagus Nerve / Q000166:cytology* / Q000187:drug effects
D014446:Tyrosine 3-Monooxygenase; D010134:Fenclonine