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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Neurobiol Aging. 2008 Oct 23;31(6):1032–1043. doi: 10.1016/j.neurobiolaging.2008.09.002

Fig. 4.

Fig. 4

(A) In vehicle-treated rabbits, there was significantly higher expression of αβ heteromeric nicotinic acetylcholine receptors (nAChRs) in hippocampus in 4- and 27-month good learners. (B) Four- and 27-month good learner rabbits also had significantly higher expression of αβ heteromeric nAChRs in temporal–parietal cortex. Expression of α7 homomeric nAChRs was not different between vehicle-treated good and poor learners in (C) hippocampus or (D) temporal–parietal cortex. *p < 0.05; **p < 0.01; ***p < 0.001.