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  • Title: Effects of in vitro addition of exogenous vitamins C and E on gilthead seabream (Sparus aurata L.) phagocytes.
    Author: Mulero V, Esteban MA, Meseguer J.
    Journal: Vet Immunol Immunopathol; 1998 Nov 24; 66(2):185-99. PubMed ID: 9860190.
    Abstract:
    The phagocytic cell function is an important factor of resistance to infection in fish. Although it is known that several nutritional factors affect phagocyte function and that vitamins C and E modulate the vertebrate immune system, there are no data on the direct effect of these vitamins or on their possible synergistic effects on the fish phagocyte functions. We report the in vitro effect of vitamin C and/or E on the functions and ultrastructure of gilthead seabream (Sparus aurata L.) head-kidney phagocytic leukocytes. Head-kidney leukocytes were incubated with different concentrations of vitamins C and/or E for 48 h and then their migration, respiratory burst, phagocytosis and ultrastructure were studied. Leukocyte migration and phagocytosis increased when vitamin C or E were added, while the respiratory burst was synergistically enhanced when both vitamins were used together. Noticeable ultrastructural changes not previously reported were induced by these vitamins in gilthead seabream phagocytes (acidophilic granulocytes and macrophages). These results indicated that vitamins C and E added in vitro modulate the main functions of gilthead seabream phagocytes and induced ultrastructural changes characteristic of cell activation on such cells.
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