Key result
Prenatal nicotine exposure lowers minute ventilation in neonatal rats breathing air and hypoxic gas.
Why the study?
Does pre-natal exposure to nicotine reduce minute ventilation in neonatal rats?
Population
Neonatal rats
Comparison
Pre-natal exposure to nicotine vs Control animals (no nicotine exposure)
Design
Preclinical
Authors
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Suggests mechanism linking maternal smoking to SIDS; leaves open translation from rodent models to human neonates.
Does pre-natal exposure to nicotine reduce minute ventilation in neonatal rats?
Pre-natal nicotine exposure in rats significantly depresses eupneic ventilation, suggesting a potential mechanism for the link between maternal smoking and SIDS.
John et al. (1999) studied Ventilatory activity abnormalities. Pre-natal exposure to nicotine vs. Control animals was evaluated on Minute ventilation breathing air and hypoxic gas mixtures. Pre-natal exposure to maternal nicotine significantly lowered minute ventilation in neonatal rats breathing air and hypoxic gas mixtures compared to controls.
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