DNA damage and repair after exposure to sevoflurane in vivo, evaluated in Swiss albino mice by the alkaline comet assay and micronucleus test |
| |
Authors: | G Brozovic N Orsolic R Rozgaj V Kasuba F Knezevic A H Knezevic V Benkovic D Lisicic N Borojevic D Dikic |
| |
Institution: | 1. Department of Anaesthesiology and ICU, University Hospital for Tumours, Ilica 197, HR-10 000, Zagreb, Croatia 2. Department of Animal Physiology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, Zagreb, Croatia 3. Mutagenesis Unit, Institute for Medical Research and Occupational Health, Zagreb, Croatia 4. Department of Pathology, University Hospital for Tumours, Ilica 197, Zagreb, Croatia 5. Department of Radiology, Zabok General Hospital, Bracak 8, Zabok, Croatia
|
| |
Abstract: | The relationship between DNA damage and repair of peripheral blood leukocytes, liver, kidney and brain cells was investigated
in Swiss albino mice (Mus musculus L.) after exposure to sevoflurane (2.4 vol% for 2 h daily, for 3 days). Genetic damage of mouse cells was investigated by
the comet assay and micronucleus test. To perform the comet assay, mice were divided into a control group and 4 groups of
exposed mice sacrificed on day 3 of the experiment, at 0, 2, 6 or 24 h after the last exposure to sevoflurane. Mean tail length
(TL), tail moment (TM), and tail intensity (TI) values were significantly higher in exposed mice (all examined organs) than
in the control group. Significant DNA damage immediately after exposure to sevoflurane was observed in leukocytes. Damage
induction in the liver, kidney, and brain occurred 6 h later than in leukocytes, as expected according to the toxicokinetics
of the drug, where blood is the first compartment to absorb sevoflurane. However, none of the tested tissues revealed signs
of repair until 24 h after the exposure. To distinguish the unrepaired genome damage in vivo, the micronucleus test was applied.
Number of micronuclei in reticulocytes showed a statistically significant increase, as compared with the control group at
all observed times after the treatment. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|