Author(s) affiliations:Essam Abdel-Sattar1, Dina Abou-Hussein2, Frank Petereit3
1Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
2Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
3University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Hittorfstraße 56, D 48149 Münster, German.