| Literature DB >> 17850415 |
Fábio C Cruz1, Roberto DeLucia, Cleopatra S Planeta.
Abstract
We examined nicotine-induced locomotion and increase in corticosterone plasma levels in adolescent and adult animals exposed to chronic restraint stress. Adolescent [postnatal day (P) 28-37] and adult (P60-67) rats were restrained for 2 hours once daily for 7 days. Three days after the last exposure to stress, the animals were challenged with saline or nicotine (0.4 mg/kg subcutaneously). Nicotine-induced locomotion was recorded in an activity cage. Trunk blood samples were collected in a subset of adolescent and adult rats and plasma corticosterone levels were determined by radioimmunoassay. Exposure to stress did not affect the nicotine-induced locomotor- or corticosterone-activating effects in both ages.Entities:
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Year: 2007 PMID: 17850415 DOI: 10.1111/j.1369-1600.2007.00080.x
Source DB: PubMed Journal: Addict Biol ISSN: 1355-6215 Impact factor: 4.280