Effect of Phytic Acid and/orAscorbic Acid to Mitigate Manganese Toxicityin Experimental Animals

Document Type : Original Article

Authors

1 Biochemistry and Nutrition Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt

2 Biochemistry Department, Research Institute of Ophthalmology, Cairo, Egypt.

Abstract

This study was conducted to investigate the effect of manganese toxicityby manganese chloride (MnCl2) on the experimental animals and to evaluatethe efficacy of phytic acid and/orascorbic acid in attenuating the deleterious effect induced by manganese toxicity. For this purpose,thirty healthy rabbits weighing 1655±367.07g were divided into five groups each of six rabbits. Group 1; rabbits fed on commercial diet and normal water served as normal control; group 2; rabbits fed on commercial diet and received 200mg/L of MnCl2 in drinking water. Group 3; rabbits received MnCl2 in drinking water (200mg/L) and fed on commercial diet supplemented with phytic acid(20 g /kg diet). Group 4; rabbits fed on commercial diet and received 200mg/L MnCl2 in drinking water and orally administrated with ascorbic acid (30mg/kg body weight daily).Group 5; rabbits received MnCl2 in drinking water (200mg/L) and fed phytic acid (20 g /kg diet)and orally administrated ascorbic acid (30mg/kg body weight daily) by intragastric tube. Results showed that MnCl2 intoxication significantlyreducedhaemoglobin (Hb) concentrationand serum iron with a significant increase in total iron binding capacity. Also, it induced a significant increase in malondialdehyde (MDA) level accompanied bya significant decrease in reduced glutathione (GSH) concentration and superoxide dismutase (SOD) activity. Moreover, MnCl2intoxication caused a significant increase in serum alanine transaminase (ALT), aspartate transaminase (AST) activities. Also, serum urea and creatinine significantly elevated in MnCl2-intoxicated group.An improvement was noticed in these altered parameters after oral administration ofphytic acid and/or ascorbic acid.
 

Keywords