Differential effects of inhaled toluene on locomotor activity in adolescent and adult rats.

Pharmacology, Biochemistry, and Behavior
Jeffery C BatisS E Bowen

Abstract

Inhalant abuse is a world-wide public health concern among adolescents. Most preclinical studies have assessed inhalant effects in adult animals leaving unclear how behavioral effects differ in younger animals. We exposed adolescent (postnatal day [PN] 28) and adult (PN90) male rats to toluene using 1 of 3 exposure patterns. These patterns modeled those reported in toluene abuse in teens and varied concentration, number and length of exposures, as well as the inter-exposure interval. Animals were exposed repeatedly over 12 days to toluene concentrations of 0, 8000 or 16,000 parts per million (ppm). Locomotor activity was quantified during toluene exposures and for 30 min following completion of the final daily toluene exposure. For each exposure pattern, there were significant toluene concentration-related increases and decreases in locomotor activity compared to the 0-ppm "air" controls at both ages. These changes depended upon when activity was measured - during or following exposure. Compared to adults, adolescents displayed greater locomotor activity on the first day and generally greater increases in activity over days than adults during toluene exposure. Adults displayed greater locomotor activity than adolescents in the ...Continue Reading

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Citations

Aug 21, 2013·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Jacob T Beckley, John J Woodward
Sep 17, 2013·Neurotoxicology and Teratology·Michelle L TomaszyckiScott E Bowen
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Jun 5, 2021·Neurotoxicology and Teratology·Silvia L Cruz, Scott E Bowen

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