Abstract
Protective Effects of Dietary Spirulina platensis against Cadmium-Induced Oxidative Stress in Gills of Rainbow Trout
Highlights
Gills of fish are the first target organs when exposed to environmental pollutants [1]
Despite a decrease in AST activity in gill cells of fish treated with different concentrations of S. platensis and 0.2 mg of CdCl2 compared with fish solely treated with CdCl2, AST activity was significantly higher than that of the control group (Figure 1)
alkaline phosphatase (ALP) activity in gills of fish treated with CdCl2-contaminated diets decreased significantly
Summary
Gills of fish are the first target organs when exposed to environmental pollutants [1]. Contamination of feeds with cadmium leads to oxidative stress in vital tissues such as gills and affects the fish survival. This study investigated the protective effects of microalga Spirulina platensis against oxidative stress in gills of cadmium-treated rainbow trout. Changes in biochemical parameters including alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and lactate dehydrogenase (LDH), malondialdehyde (MDA) as marker of lipid peroxidation and cellular total antioxidant capacity were evaluated. The cellular antioxidant capacity was significantly lowered in CdCl2-treated fish as compared to the control group (P
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