| http://www.w3.org/ns/prov#value | - However, it should be noted that learning deficits dissipated by day 5 but hippocampus binding was elevated at day 5, suggesting that either a level of upregulation that must occur before deficits are seen or other factors contribute to the deficits.No changes in ??4, ??7, and ??2 nAChR subunit mRNA expression in the hippocampus on the 12th day of chronic nicotine treatment were found.
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