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Updated: Aug 8, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Prenatal nicotine exposure, particularly in late pregnancy, can negatively impact offspring
Area of Science:
- Neuroscience
- Developmental Biology
- Toxicology
Background:
- Nicotine exposure during pregnancy is a significant public health concern.
- The teratological effects of nicotine on fetal development require further investigation.
- Understanding the impact on the central nervous system (CNS) is crucial.
Purpose of the Study:
- To investigate the teratological effects of prenatal nicotine exposure on offspring.
- To determine if nicotine exposure during different trimesters of pregnancy impacts CNS development.
- To assess the dose-dependent effects of nicotine on audiogenic seizures in offspring.
Main Methods:
- Pregnant albino Swiss mice were divided into groups for each trimester.
- Mice received daily subcutaneous doses of nicotine (10, 20, or 30 cigarettes equivalent) or saline.
- Offspring were assessed for latency, onset, and extinction of audiogenic seizures.
Main Results:
- Prenatal nicotine exposure prolonged seizure latency and delayed onset and extinction.
- These effects were more pronounced with higher nicotine doses and during the third trimester.
- Third-trimester nicotine exposure showed the most significant impact on seizure activity.
Conclusions:
- Prenatal nicotine exposure can adversely affect CNS development.
- Late-stage pregnancy exposure poses a greater risk for neurodevelopmental delays.
- Findings suggest a potential for delayed postnatal CNS development following late-term nicotine exposure.
More Related Videos
15:27Construction of Vapor Chambers Used to Expose Mice to Alcohol During the Equivalent of all Three Trimesters of Human Development
Published on: July 13, 2014
05:13Preclinical Model of Prenatal Delta-9-Tetrahydrocannabinol Exposure to Assess Its Impact on Neurodevelopmental Outcomes
Published on: February 28, 2025
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