Chong Y. P. School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia , Samsudin S. School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia , Bahrani D. A. School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia , Chang C. H. School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia , Masamune A. Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan , Ng S. H. School of Pharmacy, IMU University, Kuala Lumpur, Malaysia , Ismail N. Natural Medicines and Products Research Laboratory, Institute of Bioscience, University Putra Malaysia, Serdang, Selangor, Malaysia , Ho K. L.