Effect of nickel on some aspects of protein metabolism in the gill and kidney of the freshwater fish, Cyprinus carpio L.

Hydrous iron oxide for removal of inorganic contaminants in simulated stormwater: A batch sorption kinetics study

“…All these ions are known to be sorbed on metal oxides initially at the surfaces followed by possibly slow intra-particle diffusion in the interior of the particles (16,30). As Se is sorbed as an oxy-anion (SeO 4 2− ), it might have had a different kinetics of sorption than the heavy metal cations, Cd, Cu, Ni and Zn and hence present in a different cluster in the dendrogram. The heavy metal cations have similar sorption mechanisms and therefore grouped themselves into the same cluster.…”

“…For example, in freshwater animals, chronic exposure to Cd, and Cu and their secondary metabolites may cause immuno-suppression, vertebral deformities and neurological disorder in both the peripheral and central nervous system [1], while Cd is known to enhance lipid peroxidation by increasing the production of free radicals in the lungs, which leads to tissue damage and cellular death [2,3]. Excessive concentration of Ni reduces skeletal calcification and diffusion capacity of gills, and affects protein metabolism [4], while selenium can cause selenosis leading to gastrointestinal disorder and neurological damage in humans [5]. Due to their toxicity, the discharge of these contaminants to natural water bodies may cause physical, chemical, as well as biological impacts on the environment both in the short-term and in the longterm and therefore they should be removed.…”

Identification of a novel gill-specific calpain from rainbow trout (Oncorhynchus mykiss)

“…Amino acid sequences were derived from: rainbow trout Capn-g (AY518342), Capn1 (AY573919), and Capn2 (AY573920); human (P07384) and mouse (NP_031626.1) Capn1; human (NP_001739.1) and mouse (NP_033924.1) Capn2; human (X85030.1) and mouse (NP_031627.1) Capn3; human (NP_004046.2) and mouse (NP_031628.1) Capn5; human (NP_055104.2) and mouse (NP_031629.2) Capn6; human (BAA78730.1) and mouse (NP_033926.1) Capn7; rat (BAA03371.1) and mouse (BAB70480) Capn8; human(AAH73673) and mouse (AAH58748) Capn9; human (AAG17966.1) and mouse (NP_035926.1) Capn10; human (CAB52137.1) and mouse (AAT27434.1) Capn11; human (NP_653292.2) and mouse (CAC10066.1) Capn12; human (NP_653176.2) and mouse (XP_355038.2) Capn13. responsive to a variety of environmental and nutritional conditions (Suresh et al 1991;Sreedevi et al 1992;Morgan and Iwama 1999;De Smet and Blust 2001). Clarification of the physiological role of Capn-g in gills and identification of its endogenous substrates are important future issues.…”

A talaj- és talajvízrendszer komplex környezeti szempontú értékelése városi területen, Szeged példáján

“…Városokban az elsődleges nikkelforrások közé tartoznak a különböző ötvözetek, galvanizálás, bányászat és kohászat, háztartási gépek, elemek, cellulóz-és papíripar, valamint a fosszilis tüzelőanyagok elégetése (Beasley, Kneale, 2002). Ezek a források felelősek azért, hogy 1930 óta minden évtizedben szinte megduplázódott az édesvizek nikkel koncentrációja (Biney et al, 1994;Sreedevi et al, 1992). A Földkéreg átlagos nikkeltartalma 0,008% körüli, természetes vizekben átlagos koncentrációja 2 és 10 µg/l közötti (Hertel et al, 1991).…”