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Adam W. Hendricson, Ph.D.Post-Doctoral Fellow Mail to: Doctor of Philosophy, 2002, Pharmacology |
Description of Present Research:
The present line of inquiry focuses exclusively on the role of NMDA receptors (NMDARs) in triggering electrographic ethanol withdrawal seizures, a prime cause of morbidity and mortality in chronic ethanol abusers. Using the hippocampal blind slice patch-clamp preparation, recordings of pharmacologically isolated NMDAR-mediated miniature synaptic events (mEPSCs) will be made from organotypic hippocampal tissue cultures (explants) in the setting of chronic ethanol administration, and at various time-points after withdrawal of ethanol. Withdrawal-induced changes in NMDAR-mediated signaling will be temporally correlated with the onset of electrographic seizures detected via field potential monitoring of hippocampal discharge patterns. Confocal imaging of GFP-tagged NMDARs expressed by explanted hippocampal neurons will be employed to directly visualize chronic ethanol-induced NMDAR trafficking, and to monitor time-dependent changes in NMDAR expression at various time points following ethanol withdrawal.
Honors, Awards, and Societies
Undergraduate
Graduate and post-graduate
Representative Publications:
Hendricson, A.W., Miao, A.C.L., Lippman, M.J., and Morrisett, R.A. (2002). Ifenprodil and ethanol enhance NMDA-receptor dependent long term depression. Journal of Pharmacology and Experimental Therapeutics, 301(3):938-44.
Hendricson, A.W., and Guth, P.S. (2002). Transmitter release from vestibular hair cells via mGluRs: A role for intracellular Ca++ release. Hearing Research, 172(1-2):99-109.
Hendricson, A.W., and Guth, P.S. (2002). Signal discrimination in the semicircular canals: A role for group I mGluRs. NeuroReport, 13(14):1765-8.
Fader, A.J., Hendricson, A.W., and Dohanich, G.P. (1997). The effects of estrogen on spatial learning. Neurobiology of Learning and Memory, 69(3), 225-240.
Hendricson, A.W., and Morrisett, R.A. Dose-dependent discrimination
between pre- and post-synaptic effects of ethanol on Sr++-supported NMDA mEPSCs
in hippocampus, In Preparation.