1. Department of basic sciences, Faculty of Agriculture, University of Zalingei, Zalingei, Sudan
2. H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
3. Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
4. Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
5. Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia