In vivo and in vitro studies were performed to evaluate acute toxicity, organ-specific distribution, and tissue accumulation of copper in Callinectes sapidus acclimated to two different experimental salinities (2 and 30 ppt). Blue crabs were quite tolerant to copper. Acute dissolved copper toxicity (96-h LC(50) and its corresponding 95% confident interval) was higher at salinity 2 ppt (5.3 (3.5...

Background: Contamination of the environment due to heavy metals is a major concern to human life and the environment. This study was conducted to investigate and quantify the copper and zinc concentrations in industrial estates soil in Arak, Iran. Methods: Four industrial estates were considered for the experimental design, including Arak 1, Arak 2, Arak 3, and Ghotbe Sanaati. For prelimin...

In this work, the effect of copper and zinc on green alga Pseudokirchneriella subcapitata was evaluated through catalase activity, lipid peroxidation by TBARS essay, growth rate, and the chlorophyll-a concentration. Catalase activity increased significantly (P < 0.05) in comparison to the control at 0.1 mg L copper and 0.075 mg L zinc, whereas the damage to the cell membrane expressed as nmols/...

The biuret method offers some advantages as a simple, rapid photometric method for the determination of proteins. In the methods which have been proposed, precipitation of cupric hydroxide gives rise to certain difficulties (1, 2). It occurred to us that the precipitates might be avoided by the addition of a reagent which would form a compound with copper which was soluble in alkali, but of suc...

In the present study a novel approach has been made to evaluate the toxicity of cadmium in maize (Zea mays L. cv KJ9451) in terms of germination, seedling growth, pigment development and relevant enzyme activity and the possible remedial approach using potassium and copper to reduce cadmium toxicity. For the present investigations maize seeds were sown in petridishes on filter paper in triplica...

Chinook salmon, Oncorhynchus tshawytscha (Walbaum), and rainbow trout, Salmo gairdneri Richardson, were used to determine if sublethal copper exposure would increase their susceptibility to Vibrio anguillarum infection. Eish were pretreated with copper at fractional levels of the 96 h copper LC50 before exposure to the pathogen. Mortality by vibriosis was greater among fish exposed to 9/0 of th...

Background The aim of this study was to evaluate copper status in women with preeclampsia. MaterialsAndMethods Sixty preeclamptic, sixty normotensive pregnant and sixty healthy nonpregnant women were enrolled in a cross sectional study. The 24-hour urine copper was compared among the women. Results There was significant difference in the copper concentration of 24-hour urine among the three gro...

Ceruloplasmin (Cp) concentration and oxidative activity in serum are lowered in Parkinson's disease (PD). In most PD patients, iron increases in the substantia nigra in the midbrain. In PD, the low Cp concentration and activity in serum and the high iron amounts in the substantia nigra appears to be correlated. An hereditary background is common in PD and variations in the Cp gene that have bee...