Skip to main content
Log in

Effect of six oximes on acutely anticholinesterase inhibitor-induced oxidative stress in rat plasma and brain

  • Molecular Toxicology
  • Published:
Archives of Toxicology Aims and scope Submit manuscript

Abstract

Beside the key inhibition of acetylcholinesterase (AChE), involvement of oxidative stress in organophosphate (OP)-induced toxicity has been supported by experimental and human studies. On the other hand, according to our best knowledge, possible antioxidant properties of oximes, the only causal antidotes to OP-inhibited AChE, have been examined only by a few studies. Thus, we have determined the effect of four conventional (obidoxime, trimedoxime, pralidoxime, asoxime) and two promising experimental oximes (K027, K203) on dichlorvos (DDVP)-induced oxidative changes in vivo. Wistar rats (5/group) were treated with oxime (5% LD50 i.m) immediately after DDVP challenge (75% LD50 s.c). Oxidative stress biomarkers were determined in plasma and brain 60 min after the treatment: prooxidative—superoxide anion (O2 ·−) and total oxidative status (TOS); antioxidative—superoxide dismutase (SOD), total thiol (SH) groups, total antioxidant status (TAS) and paraoxonase (PON1); tissue oxidative stress burden—prooxidative–antioxidative balance (PAB) and oxidative stress index (OSI); oxidative tissue damage—malondialdehyde (MDA) and advanced oxidation protein products (AOPP). All oximes were able to attenuate DDVP-induced oxidative stress in rat plasma and brain. Changes of determined parameters in brain were not as prominent as it was seen in plasma. Based on OSI, better abilities of oxime K027, K203 and obidoxime to maintain DDVP-induced oxidative stress in rat brain were shown as compared to trimedoxime, pralidoxime and asoxime. Oximes can influence the complex in vivo redox processes that might contribute to their overall therapeutic efficacy. Further research is needed to understand the underlying molecular mechanisms involved in this phenomenon.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

Download references

Acknowledgements

This study was supported by a grant from the Ministry of Education, Science and Technological Development of the Republic of Serbia (Project no. III46009 and OI 175035), Specific Research Project of Faculty of Science, University of Hradec Kralove (no. 2110–2016) and Ministry of Education, Youth and Sports (no. 8F17004).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Kamil Kuca.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Antonijevic, E., Kotur-Stevuljevic, J., Musilek, K. et al. Effect of six oximes on acutely anticholinesterase inhibitor-induced oxidative stress in rat plasma and brain. Arch Toxicol 92, 745–757 (2018). https://doi.org/10.1007/s00204-017-2101-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00204-017-2101-z

Keywords

Navigation