1. Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria;
2. Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria;
3. Nutrition and Toxicology Division, Federal Institute of Industrial Research, Oshodi, Nigeria;
4. Department of Pharmacognosy and Ethnopharmacy, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria;
5. Department of Medicine, Kaduna State University, Kaduna, Nigeria