Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri

The effects of sublethal concentrations of cadmium (0.64 µg/L), iron (0.043 mg/L) and zinc (0.31 mg/L) and a mixture of these metals on succinate dehydrogenase (SD) and alkaline phosphatase (AP) activity and on structural changes in the mitochondria of epithelium cells of the digestive tract were ex...

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Autores principales:	Grajeda y Ortega,María de los Angeles, Ortiz Ordoñez,Esperanza, Favari,Liliana, Shibayama,Mineko, Silva Olivares,Angélica, López López,Eugenia
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2011
Materias:	Heavy metals Mixture Alkaline phosphatase Succinate dehydrogenase activity Limnodrillus hoffmeisteri Epithelium cells Mitochondria
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200018
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spelling	oai:scielo:S0717-950220110002000182011-07-22Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteriGrajeda y Ortega,María de los AngelesOrtiz Ordoñez,EsperanzaFavari,LilianaShibayama,MinekoSilva Olivares,AngélicaLópez López,Eugenia Heavy metals Mixture Alkaline phosphatase Succinate dehydrogenase activity Limnodrillus hoffmeisteri Epithelium cells Mitochondria The effects of sublethal concentrations of cadmium (0.64 µg/L), iron (0.043 mg/L) and zinc (0.31 mg/L) and a mixture of these metals on succinate dehydrogenase (SD) and alkaline phosphatase (AP) activity and on structural changes in the mitochondria of epithelium cells of the digestive tract were examined in the oligochaete Limnodrillus hoffmeisteri after 96 h of exposure in artificial sediments. SD activity was significantly inhibited, particularly in treatments with Cd alone (92.57%), while AP increased its activity with Cd alone (73.23%). However, when this metal was mixed with Fe and Zn, the inhibition of SD activity was lower (67.82%) than with Cd alone, showing an antagonistic effect and AP increased its activity (73.26%). Mitochondria were structurally damaged by exposure to Cd alone. However, in the metal mixtures, the toxic effects may exert interactive effects eliciting a less structural damage in the mitochondria of epithelium cells of the digestive tract than when Cd is alone.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.29 n.2 20112011-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200018en10.4067/S0717-95022011000200018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Heavy metals Mixture Alkaline phosphatase Succinate dehydrogenase activity Limnodrillus hoffmeisteri Epithelium cells Mitochondria
spellingShingle	Heavy metals Mixture Alkaline phosphatase Succinate dehydrogenase activity Limnodrillus hoffmeisteri Epithelium cells Mitochondria Grajeda y Ortega,María de los Angeles Ortiz Ordoñez,Esperanza Favari,Liliana Shibayama,Mineko Silva Olivares,Angélica López López,Eugenia Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri
description	The effects of sublethal concentrations of cadmium (0.64 µg/L), iron (0.043 mg/L) and zinc (0.31 mg/L) and a mixture of these metals on succinate dehydrogenase (SD) and alkaline phosphatase (AP) activity and on structural changes in the mitochondria of epithelium cells of the digestive tract were examined in the oligochaete Limnodrillus hoffmeisteri after 96 h of exposure in artificial sediments. SD activity was significantly inhibited, particularly in treatments with Cd alone (92.57%), while AP increased its activity with Cd alone (73.23%). However, when this metal was mixed with Fe and Zn, the inhibition of SD activity was lower (67.82%) than with Cd alone, showing an antagonistic effect and AP increased its activity (73.26%). Mitochondria were structurally damaged by exposure to Cd alone. However, in the metal mixtures, the toxic effects may exert interactive effects eliciting a less structural damage in the mitochondria of epithelium cells of the digestive tract than when Cd is alone.
author	Grajeda y Ortega,María de los Angeles Ortiz Ordoñez,Esperanza Favari,Liliana Shibayama,Mineko Silva Olivares,Angélica López López,Eugenia
author_facet	Grajeda y Ortega,María de los Angeles Ortiz Ordoñez,Esperanza Favari,Liliana Shibayama,Mineko Silva Olivares,Angélica López López,Eugenia
author_sort	Grajeda y Ortega,María de los Angeles
title	Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri
title_short	Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri
title_full	Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri
title_fullStr	Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri
title_full_unstemmed	Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri
title_sort	biochemical and mitochondrial changes induced by cd, fe and zn in limnodrillus hoffmeisteri
publisher	Sociedad Chilena de Anatomía
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200018
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Biochemical and Mitochondrial Changes Induced by Cd, Fe and Zn in Limnodrillus hoffmeisteri

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