Effect of Oral Administration of the Leaf Extract of Uvaria chamae (Mmimi Ohia) in Albino Wistar Rats
Innocent S. I. Ogbu
Department of Medical Laboratory Science, Evangel University, Akaeze, Ebonyi State, Nigeria. 2Department of Medical Laboratory Science, University of Nigeria, Enugu Campus, Enugu State, Nigeria.
Eugenia O. Okafor
Department of Medical Laboratory Science, University of Nigeria, Enugu Campus, Enugu State, Nigeria.
Emmanuel Ifeanyi Obeagu *
Department of Medical Laboratory Science, Evangel University, Akaeze, Ebonyi State, Nigeria and Department of Medical Laboratory Science, Imo State University, Owerri, Imo State, Nigeria.
Chinemerem C. Ogbu
Department of Medical Laboratory Science, Evangel University, Akaeze, Ebonyi State, Nigeria.
Bessie Nonyelum. Esimai
Department of Medical Laboratory Science, Evangel University, Akaeze, Ebonyi State, Nigeria.
Nduka J. Okeke
Department of Chemical Pathology, Faculty of Clinical Medicine, Ebonyi State University, Abakaliki, Ebonyi State, Nigeria.
Chukwulete Okafor Ukeekwe
Department of Medical Laboratory Science, Evangel University, Akaeze, Ebonyi State, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Uvariachamae (vernacular; mmimiohia) belongs to the family Annonaceae. It is a small tree that grows wild to about 4.5 meters in the savanna and rain forest regions of Nigeria and other African countries. It is known to possess various medicinal and therapeutic properties. The biochemical and toxicological effects of its ethanolic leaf extract on Wistar albino rats were assessed in this study. Twenty albino rats grouped into 4 (5 animals in each group) were used. Group A served as control while groups B, C, D received 250, 500 and 1 000mg/kg body weight of the extract for a period of 30 days. The mean alkaline phosphatase activity of the control was 350±11.0Iu/l as against 490±38.00, 630±60, and 370±20 for groups B, C, and D (p =0.01, ˃0.05, 0,001) respectively. The mean serum urea concentration of the control was 5.00±0.19mg/dl as against 3.80±0.31, 3.30±0.28 and 3.50±0.18mg/dl (p=0.01, 0.001, 0.001) for groups B, C, D respectively. The extract had no significant effects on the liver enzymes, ALT and AST, serum sodium, potassium, chloride as well as creatinine of the rats. Serum bicarbonate was raised significantly, 26.00±0.53, 28.00±0.60, 27.00±1.10, 29.00±1.10 for groups B, C, D (p= 0.042, ˃0.05, 0.043) respectively. Histological studies showed no abnormality in the kidneys and mild peri-portal lymphocytic infiltration of the liver. Phytochemical analyses of the extract revealed the presence of alkaloids, flavonoids, resins, proteins terpenoids and reducing sugar. Hence, ethanolic extract of leaves of Uvaria chamae has no serious deleterious effects on Wistar albino rats and may be safely used in traditional medical practice.
Keywords: Leaf extract, Uvaria chamae, albino wistar rats, toxicity