TY - JOUR PY - 2016// TI - Impact of e-cigarette refill liquid with or without nicotine on liver function in adult rats JO - Toxicology mechanisms and methods A1 - El Golli, Narges A1 - Jrad-Lamine, Aicha A1 - Neffati, Hajira A1 - Rahali, Dalila A1 - Dallagi, Yosra A1 - Dkhili, Houssem A1 - Ba, Nathalie A1 - El May, Michele V. A1 - El Fazaa, Saloua SP - 419 EP - 426 VL - 26 IS - 6 N2 - This study was conducted to evaluate the effects of e-cigarette refill liquid administration alone or with nicotine on the antioxidant defense status, functional and histopathological changes in adult rat liver tissue. For this purpose, 32 rats were treated for 28 days as follows: control group was injected intra-peritoneally with physiological saline; e-cigarette 0% treated group received an intra-peritoneal injection of e-liquid without nicotine diluted in physiological saline, e-cigarette-treated group received an intra-peritoneal injection of e-liquid containing 0.5 mg of nicotine/kg of body weight/day diluted in physiological saline and nicotine-treated group received an intra-peritoneal injection of 0.5 mg of nicotine/kg of body weight/day diluted in physiological saline. In e-liquid without nicotine-exposed group, activities of the liver biomarkers aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase and lactate dehydrogenase increase. Interestingly, oxidative stress indicators showed decreased total protein content, associated with a reduction in the antioxidant enzymes activities superoxide dismutase, catalase and glutathione-S-transferase, and an elevation in malondialdehyde content, highlighting the promotion of lipid peroxidation and oxidative stress. Histological studies identified inflammatory cells infiltration and cell death. Thus, e-liquid seems to promote oxidative tissue injuries, which in turn lead to the observed histopathological finding. In comparison, nicotine alone induced less oxidative stress and less histopathological disorders, whereas e-liquid with nicotine gave rise to more histopathological injuries. Thereby, e-liquid, per se, is able to induce hepatotoxicity and supplementation with nicotine worsens this state.

Language: en

LA - en SN - 1537-6516 UR - http://dx.doi.org/10.3109/15376516.2016.1160963 ID - ref1 ER -