Journal
LEARNING & MEMORY
Volume 24, Issue 3, Pages 132-135Publisher
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/lm.044818.116
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC) [418451-2013, 261384-2008]
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Early odor preference learning occurs in one-week-old rodents when a novel odor is paired with a tactile stimulation mimicking maternal care. beta-Adrenoceptors and L-type calcium channels (LTCCs) in the anterior piriform cortex (aPC) are critically involved in this learning. However, whether beta-adrenoceptors interact directly with LTCCs in aPC pyramidal cells is unknown. Here we show that pyramidal cells expressed significant LTCC currents that declined with age. beta-Adrenoceptor activation via isoproterenol age-dependently enhanced LTCC currents. Nifedipine-sensitive, isoproterenol enhancement of calcium currents was only observed in post-natal day 7-10 mice. APC beta-adrenoceptor activation induced early odor preference learning was blocked by nifedipine coinfusion.
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