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Although the mechanisms by which the cerebral cortex controls its ascending input are still poorly understood, it is known that cortical control at the thalamic level is via direct glutamatergic projections to relay nuclei and to the reticular nucleus. Here we confirm previous light microscopic reports of a high expression of the(More)
The mesencephalic trigeminal nucleus is composed of large (35-50 microns) pseudo-unipolar neurons. Closely associated with them are small (< 20 microns) multipolar neurons. An unique peculiarity of the pseudo-unipolar perikarya is that they receive synaptic input from various sources, which sets them apart from the dorsal root and cranial nerves sensory(More)
It has been reported that pharmacologic activation of metabotropic receptors mGluR2/3 may produce inhibition of GABAergic transmission in rat ventrobasal thalamus. We use double immunolabeling to show that: (i) mGluR2/3 is expressed in glial processes surrounding GABAergic terminals, rather than in the terminals themselves, and (ii) mR2/3 positive glial(More)
The data on the glycinergic transmission in the rostral brainstem are both few and controversial. The present report provides evidence for a possible glycinergic transmission in Sprague-Dawley rats, based on observations of immunocytochemical labeling for gephyrin, a 93 kDa protein and a component of the functional glycine receptor. A monoclonal antibody(More)
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