Maternal nicotine exposure during late gestation and lactation increases anxiety-like and impulsive decision-making behavior in adolescent offspring of rat

被引：26
作者：
Lee H. [1 ]
Chung S. [1 ]
Noh J. [1 ]
机构：
[1] Department of Science Education, College of Education, Dankook University, Gyeonggi
来源：
Toxicological Research | 2016年 / 32卷 / 4期
基金：
新加坡国家研究基金会;
关键词：
Anxiety; Decision-making; Gestation; Impulsivity; Lactation; Nicotine;
D O I：
10.5487/TR.2016.32.4.275
中图分类号：
学科分类号：
摘要：
Prenatal nicotine exposure over an entire pregnancy has been associated with an increased prevalence of hyperactivity, anxiety-like behavior and depression-like behavior in mature rats. However, the effects of maternal nicotine exposure in late gestation and lactation on the psychology and behavior of adolescent rat offspring are unclear. Thus, we investigated the effect of nicotine exposure during late gestation and lactation on anxiety-like and impulsive decision-making behavior in adolescent offspring of rat. Female rats were orally exposed to nicotine which is within range of plasma level of human chronic smokers during the period of third last period of gestation and lactation. When the offspring were weaned, we observed alterations in the anxiety-like behavior and decision-making ability of adolescent rat offspring using light/dark box test and T-maze delay-based cost-benefit decision-making task. The maternal consumption of nicotine reduced both the time spent in the light compartment and the number of transitions compared to nicotine-free rats. Moreover, such nicotine exposed adolescent offspring rats showed impulsive decision making which chose the instant reward in a decision-making situation. We found that nicotine exposure during late gestation and lactation induces an increase in anxiety-like and impulsive decision-making behavior at this developmental stage. These findings suggest that maternal nicotine-exposed offspring are at an increased risk of developing anxious and impulsive behavior.
引用
收藏
页码：275 / 280
页数：5
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