Date: 24.3.2011
New research has revealed that prenatal exposure to nicotine increases the vulnerability to nicotine self-administration in adolescent mice. The results support the hypothesis that adolescents with prenatal nicotine exposure are more likely to start smoking earlier than their peers and that they are also more susceptible to the addictive effects of nicotine, especially as a result of stress and peer pressure.
The key observation made by the Finnish and Russian researchers in the project was that adding nicotine to the drinking water of pregnant mice led to differences between the control and nicotine-exposed offspring in terms of nicotine self-administration. Treating the dams with nicotine during the prenatal period increased the frequency of self-administration in the offspring compared to the control group, even at lower doses.
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