Differing influences of dopamine agonists and antagonists on Fos expression in identified populations of globus pallidus neurons.

Dopamine agonists increase the activity of globus pallidus neurons, as shown electrophysiologically and with Fos expression. More recently it has been shown that decreased D2 receptor activity also causes pallidal Fos expression. Similar responses occur in the striatum, where both dopamine agonists and D2 blockade induce Fos, although in separate neuronal populations (i.

Transduction of hippocampal CA1 by adenovirus in vivo.

Replication-deficient adenoviral recombinants were assessed for in vivo transduction of rat hippocampal CA1 cells. Results show that efficient widespread transduction of CA1 in vivo was rapidly achievable and was sustained for more than 5 weeks. Assessment of electrophysiological properties in acute hippocampal slices showed that synaptic functioning and mechanisms involved in long-term potentiation (LTP) were preserved for minimally 5 weeks postinfection.