(A) Daily weights during 14 days of postnatal exposure to E-cigarette vapors starting at PN day 2. From 7–14 days of postnatal exposure, pups exposed to 0% nicotine/PG or 2.4% nicotine/PG E-cigarette vapors had significantly lower weights compared to untreated mice (RA) (* p< 0.02). Mice exposed to 0% Nic/PG E-cigarette vapors were significantly smaller than 2.4% Nic/PG and room air mice throughout the exposure (p<0.03, error bars represent standard error of the means) (n = 11–31). (B) Serum cotinine levels from female pups exposed to 14 days of 2.4% Nic/PG or 0% Nic/PG E-cigarette vapors or room air controls (n = 4–7, error bars represent standard deviations).

Abstract

<p>(A) Daily weights during 14 days of postnatal exposure to E-cigarette vapors starting at PN day 2. From 7–14 days of postnatal exposure, pups exposed to 0% nicotine/PG or 2.4% nicotine/PG E-cigarette vapors had significantly lower weights compared to untreated mice (RA) (* p< 0.02). Mice exposed to 0% Nic/PG E-cigarette vapors were significantly smaller than 2.4% Nic/PG and room air mice throughout the exposure (p<0.03, error bars represent standard error of the means) (n = 11–31). (B) Serum cotinine levels from female pups exposed to 14 days of 2.4% Nic/PG or 0% Nic/PG E-cigarette vapors or room air controls (n = 4–7, error bars represent standard deviations).</p

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