The distributions and concentrations of trace elements in the environment exposed to biological materials including humans can affect life depending on the exposure and degree of concentrations. Whilst the essential trace elements impacts on human development the potential toxic elements will have adverse health consequences on humans and in animals. As observed from the study both lives threat...

The functions of trace elements in cellular metabolism have been emphasized by various investigators. The stimulating effect of cobalt and copper on the hematopoietic system has been recognized, and the functions of zinc in the enzyme systems have been greatly elucidated by the work of Keilin and Mann (1). Radioactive isotopes of cobalt, copper, and zinc have been used for tracer study by vario...

thirteen environmental elements were distinguished in the livers of various species of fish thathave been sampled from 15 sites in a restricted area of the khorramabad river basin in lorestan province(west of iran). sites sampled represented agricultural, mining, mixed, and urban/recreation land uses andbackground conditions. lithium and silver were not detected at any of the sites. the minimum...

hemodialysis is being implicated in the development of metabolic disturbances, as complications have been observed and the role of trace metals in their development has been questioned. in 78 renal failure patients who underwent hemodialysis, serum levels of zinc and copper were determined before and after first hemodialysis. acute and chronic renal failure patients were found to have lower ser...

background: within the context of developing techniques to facilitate the diagnosis of the thyroid diseases, the elemental composition of pathological thyroid tissue (neoplastic and non-neoplastic) was investigated by proton induced x-ray emission. the pixe has been widely used as a sensitive technique for trace elemental analysis in both biological and medical fields. materials and methods: th...