Toxicity of the main electronic cigarette components, propylene glycol, glycerin and nicotine in Sprague Dawley rats in a 90-day OECD inhalation study complemented with molecular endpoints (Lung)

ABSTRACT: The main constituents of electronic cigarette liquids are nicotine, propylene glycol (PG), and vegetable glycerin (VG), together with distilled water and flavors. To assess the toxicity of PG/VG mixtures with and without nicotine as basic components of liquids used in e-cigarettes, a 90-day rat inhalation study according to the Organization for Economic Co-operation and Development test guideline 413 was conducted. Sprague-Dawley (SD) rats were nose-only exposed, 6?h/day, 5 days/week to filtered air, or nebulized vehicle (saline), or three concentrations of PG/VG (0.174 mg PG/l + 0.210 mg VG/l; 0.520 mg PG/l + 0.630 mg VG/l; 1.520 mg PG/l + 1.890 mg VG/l) � with (test item) and without (reference item) 23 �g nicotine/L. Standard toxicological endpoints were complemented by molecular an

ORGANISM(S): Rattus norvegicus

SUBMITTER: Titz Bjoern 

PROVIDER: E-MTAB-5545 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress