Exposure of scorpionfish (Scorpaena guttata) to cadmium: biochemical effects of chronic exposure

Effects of heavy metals on the physiological and biochemical status of fishes and aquatic invertebrates

“…Study of in vitro effects of cadmium sulfate (0.5-50 mg/l of total Cd) upon intestine carbohydrase activity in zander, pike, burbot, perch, ruffe Gymnochephalus cernuus (L.), bream, roach, blue bream Abramis ballerus (L.), ide, common and crucian carps, Mozambique tilapia Oreochromis mossambicus (Peters), and rainbow trout Salmo gairdneri (Rich.) Four week-long exposure to Cd (20 mg/l) have not affected activities of membrane-bound enzymes, alkaline phosphatase, and succinate dehydrogenase in the intestine of scorpionfish Scorpaena guttata Girard even though numerous examples are known that cell, especially mitochondrial, membranes are important sites for Cd toxicity [40]. Only at concentrations of 50 mg/l, Cd ions decrease ( ≤ 25% ) total amylolytic activity in burbot and common and crucian carps, while sucrase activity decreased (33%) in planktivorous blue bream, and proteinase activity in pike and burbot (21-40% of control).…”

The Effects of Peroxiredoxin 6 Gene rs41055489 Variation on Oxidative Stress Mechanisms in Human Model Organism

“…Cd may disrupt basic physiological and biochemical mechanisms such as neurotransmitter, transepithelial transport, the immune system, and oxidases by influencing various enzyme systems in fish. Further, Cd is known to impair the balance of copper (Cu) and zinc (Zn) by replacing Zn and Cu, which are enzyme pools in cells (21). Elevated Cu levels in cells leads to genotoxic and cytotoxic effects.…”