1. Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
2. Department of Food Science and Nutrition, College of Food Science and Agriculture, King Saud University, Riyadh, Saudi Arabia
3. Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
4. Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
5. Central Laboratory, Female Center for Medical Studies and Scientific Section, King Saud University, P O Box 22452, Riyadh, Saudi Arabia
6. Therapeutic Department, National Research Centre, Dokki, Egypt
7. Department of Pharamaceutics and Industrial Pharmacy, Helwan University, Ain Helwan, Cairo, Egypt