Choline acetyltransferase and glutamate uptake in the nucleus tractus solitarius and dorsal motor nucleus of the vagus: effect of nodose ganglionectomy.

Unilateral removal of the nodose ganglion resulted in a significant decrease in choline acetyltransferase activity in the ipsilateral dorsal motor nucleus of the vagus but was without effect on enzyme activity in the nucleus of the solitary tract. High affinity glutamate uptake in the dorsal motor nucleus of the vagus and along the rostrocaudal extent of the nucleus of the solitary tract was not affected by nodose ganglionectomy.

Neurochemical studies of the nucleus of the solitary tract, dorsal motor nucleus of the vagus and the hypoglossal nucleus in rat: topographical distribution of glutamate uptake, GABA uptake and glutamic acid decarboxylase activity.

The topographical distribution of glutamate uptake, GABA uptake, and GAD activity was studied in caudal, intermediate and rostral areas of the nucleus of the solitary tract (NTS), dorsal motor nucleus of the vagus (DMN) and the of the solitary tract (NTS), dorsal motor nucleus of the vagus (DMN) and the hypoglossal nucleus (n.XII). Within the NTS and n.