PUBLICATION

Exposure to 1,2-Propanediol Impacts Early Development of Zebrafish (Danio rerio) and Induces Hyperactivity

Authors
Massarsky, A., Abdel, A., Glazer, L., Levin, E.D., Di Giulio, R.T.
ID
ZDB-PUB-170308-7
Date
2017
Source
Zebrafish   14(3): 216-222 (Journal)
Registered Authors
Di Giulio, Richard T.
Keywords
1,2-propanediol (propylene glycol), behavior, early development, electronic cigarettes, zebrafish
MeSH Terms
  • Animals
  • Behavior, Animal/drug effects*
  • Disease Models, Animal
  • Edema/chemically induced
  • Edema/epidemiology
  • Embryo, Nonmammalian/drug effects*
  • Heart Diseases/chemically induced
  • Heart Diseases/epidemiology
  • Hyperkinesis/chemically induced
  • Hyperkinesis/epidemiology*
  • Larva/drug effects
  • Larva/growth & development
  • Pharmaceutical Vehicles
  • Propylene Glycol/toxicity*
  • Swimming/physiology
  • Teratogens/toxicity
  • Yolk Sac/drug effects
  • Zebrafish/embryology
  • Zebrafish/growth & development*
PubMed
28266909 Full text @ Zebrafish
Abstract
The use of electronic cigarettes (e-cigarettes) is increasing as an alternative to tobacco burning cigarettes; however, their safety remains to be fully determined. The long-term effects of e-cigarettes are unknown, including the effects of maternal e-cigarette use on pre- and postnatal development. Additional research on the safety of e-cigarettes is needed. Especially useful would be information from high- and moderate-throughput economic model systems. This study investigates the effects of 1,2-propanediol, which was identified as the main component of e-cigarette liquid, on early development of zebrafish (an in vivo high-throughput model system that was recently proposed for the study of tobacco cigarette and e-cigarette toxicity). Zebrafish embryos were exposed to 1.25% or 2.5% 1,2-propanediol from 6 to 72 h post-fertilization (hpf). We show that exposure to 1,2-propanediol did not significantly affect mortality. Hatching success was significantly lower in 2.5% 1,2-propanediol-exposed embryos at 48 hpf, but at 72 hpf no significant differences were noted. Moreover, exposure to 1,2-propanediol reduced growth and increased the incidence of string heart, pericardial edema, and yolk sac edema. Most importantly, developmental exposure to 1.25% 1,2-propanediol caused hyperactive swimming behavior in larvae. This study demonstrates that 1,2-propanediol has adverse impacts on early development in zebrafish.
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