Comparative effects of copper, cadmium and mercury on tissue glycogen of the catfish, Heteropneustes fossils (Bloch).
Copper (Cu), cadmium (Cd) and mercury (Hg) at concentrations of 12.5 mg/l, caused a decline in the glycogen level of liver, muscle, brain and kidney of Heteropneustes fossilis. A significant increase in the glycogen content of brain was caused by low concentrations (5 and 7.5 mg/l) of both Cd and Hg 5 mg/l Cu raised the kidney glycogen level, while the same dose of Hg raised liver glycogen. It is suggested that heavy metals in low concentrations act through the endocrine system, creating hormone and/or enzyme imbalance.
D000818:Animals; D002104:Cadmium / Q000494:pharmacology; D003300:Copper / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D005399:Fishes / Q000378:metabolism*; D006003:Glycogen / Q000378:metabolism*; D008628:Mercury / Q000494:pharmacology; D008670:Metals / Q000494:pharmacology*
D008670:Metals; D002104:Cadmium; D003300:Copper; D006003:Glycogen; D008628:Mercury