Abstract
Preliminary data suggest that amygdalar corticotropin-releasing factor (CRF) is regulated by nicotinic agonists. We sought to confirm and extend these observations by determining the effects of various concentrations of nicotine on CRF messenger RNA expression in the AR-5 immortalized amygdalar cell line. Nicotine produced concentration- and time-dependent increases in CRF mRNA. This cell line thus confirms that nicotinic agonists stimulate amygdalar CRF and appears to be a useful model for studying molecular factors important in this interaction.
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