Nicolas R. Bury, Paul A. Walker, and Chris N. Glover from the King’s College London, School of Health and Life Sciences, have published a report entitled Nutritive metal uptake in teleost fish. From the abstract:
Transition metals are essential for health, forming integral components of proteins involved in all aspects of biological function. However, in excess these metals are potentially toxic, and to maintain metal homeostasis organisms must tightly coordinate metal acquisition and excretion. The diet is the main source for essential metals, but in aquatic organisms an alternative uptake route is available from the water. This review will assess physiological, pharmacological and recent molecular evidence to outline possible uptake pathways in the gills and intestine of teleost fish involved in the acquisition of three of the most abundant transition metals necessary for life; iron, copper, and zinc.
P. Carriquiriborde (from the Environmental Research Centre, National University of La Plata-CONICET, La Plata, Argentina), R. D. Handy, and S. J. Davies (School of Biological Sciences, University of Plymouth, UK), have published a report entitled: Physiological modulation of iron metabolism in rainbow trout (Oncorhynchus mykiss) fed low and high iron diets. From the abstract:
Iron (Fe) is an essential element, but Fe metabolism is poorly described in fish and the role of ferrireductase and transferrin in iron regulation by teleosts is unknown. The aim of the present study was to provide an overview of the strategy for Fe handling in rainbow trout, Oncorhynchus mykiss.
J. Burke and R. D. Handy (again, from the School of Biological Sciences, University of Plymouth, UK), have published a report entitled: Sodium-sensitive and -insensitive copper accumulation by isolated intestinal cells of rainbow trout Oncorhynchus mykiss. From the abstract:
The pathway for copper (Cu) uptake across the mucosal membrane into intestinal cells has not been elucidated in fish. Copper accumulation in freshly isolated intestinal cells from rainbow trout Oncorhynchus mykiss was measured after exposure to 0–800 µmol l–1 CuSO4 for 15 min.