LIPID PEROXIDATION AND NONENZYMATIC ANTIOXIDANTS, GLUTATHIONE AND ASCORBIC ACID, IN A CARP, LABE° ROHITAA. SAHOO, M. PATRA AND J. DANDAPATAbstract Reactive Oxygen Species (ROS) also known as prooxidants generated during aerobic metabolism are neutralised by antioxidant defence components of the cell. An imbalance between the prooxidants and antioxidants in favour of the former leads to oxidative stress. Acute or chronic oxidative stress has been linked to several pathogenesis in the aquatic animals and the amounts of endogenous antioxidants potentially influence the nutritional quality of the edible parts of the fishes. In the present communication an attempt has been made to study the tissue specific distribution of two important nonenzymatic antioxidants (Glutathione and Ascorbic acid) and the level of lipid peroxidation (LPX) (an index of oxidative stress) in the liver and muscle of an important edible fish, LabeĀ° rohita. The endogenous as well as FeSO4-induced LPX value was found to be higher in liver than muscle. Ascorbic Acid (ASA) content is also more in liver than muscle, which may be due to tissue specific differential accumulation of ASA chiefly from dietary sources.
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