alexa In vivo and in vitro effects of cadmium on selected enzymes in different organs of the fish Barbus conchonius Ham. (rosy barb).


Journal of Environmental & Analytical Toxicology

Author(s): Gill TS, Tewari H, Pande J, Gill TS, Tewari H, Pande J

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Abstract 1. Enzyme modulation by cadmium in selected organs of the fish, Barbus conchonius (rosy barb), was investigated in vivo (48 hr exposure to 12.6 mg/l cadmium chloride) and in vitro (10(-6) M cadmium chloride). 2. The acetylcholinesterase (AchE) activity was depressed in the gills but stimulated in the skeletal muscles and brain in vivo. The hepatic, branchial, and renal acid phosphatase (AcP) activity decreased marginally in vivo but it was significantly increased in the gut and ovary. In vitro, except for the liver, the AcP activity was depressed in the selected organs. Collaterally, gut alkaline phosphatase (AlP) was significantly inhibited but a pronounced stimulation was noted in the kidneys and ovary in vivo. In vitro, the AlP activity was conspicuously elevated in the kidneys and gut, and moderately in the gills. 3. Cadmium inhibited the glutamate-oxaloacetate and glutamate-pyruvate transaminases (GOT and GPT) in the liver, gills and kidneys in vivo. In vitro, the GOT and GPT activities were decreased in the liver, gills and kidneys. The lactic dehydrogenase (LDH) was significantly stimulated by Cd in the heart in vivo but in vitro the metal inhibited the enzyme in the gills. 4. Enzymes in the liver, followed by those in the kidneys and gills seem to be most seriously affected by Cd poisoning in this fish.
This article was published in Comp Biochem Physiol C and referenced in Journal of Environmental & Analytical Toxicology

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