Author(s) affiliations:Essam Abdel-Sattar1, Azza R Abd El-Monem2, Amany A Sleem3
1Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, SAUDI ARABIA.
2Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, EGYPT.
3Pharmacology Department, National Research Centre, Giza 12622, EGYPT.