About the Authors

Mai M. Helmy

Affiliation Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt

Maged W. Helmy

Affiliation Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt

Mahmoud M. El-Mas

mahelm@hotmail.com

Affiliation Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MMH MWH MME. Performed the experiments: MMH MWH. Analyzed the data: MMH MWH MME. Contributed reagents/materials/analysis tools: MMH MWH. Wrote the paper: MMH MWH MME.