Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils
- Autores
- Rosenberg, Carolina Elena; Fink, Nilda Esther; Arrieta, Marcos A.; Salibian, Alfredo
- Año de publicación
- 2003
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Lead is an element of risk for the environment and human health and has harmful effects that may exceed those of other inorganic toxicants. The immune system is one ofthe targets of lead. Its immunomodulatory actions depend on the level of exposure, and it has been demonstrated that environmental amounts of the metal alter immune function. Very little information is available regarding the effect of the metal on different aspects of the immune system of lower vertebrates, in particular of amphibians. The aim of this study was to investigate the effect of sublethal lead (as acetate) on the function of polymorphonuclear cells of Bufo arenarum. The results revealed that phagocytic and lytic functions ofthe adherent blood cells collected from sublethal lead-injected toads and incubated with suspensions of Candida pseudotropicalis were affected negatively. The decrease of the phagocytic activity was correlated with increased blood lead levels (P-0.0001). Additional information referred to the total and differential leukocyte counts was presented; the only difference found was in the number of blast-like cells that resulted augmented in the samples of lead-injected toads. It was concluded that the evaluation ofthese parameters might be a reliable tool for the biological monitoring of the immune status of amphibians.
Facultad de Ciencias Exactas
Comisión de Investigaciones Científicas de la provincia de Buenos Aires - Materia
-
Biología
Lead
Phagocytosis
Lytic activity
Candicidal activity
Polymorphonuclear cells
Neutrophils
Candida pseudotropicalis
Amphibia
Bufo arenarum - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/114716
Ver los metadatos del registro completo
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Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophilsRosenberg, Carolina ElenaFink, Nilda EstherArrieta, Marcos A.Salibian, AlfredoBiologíaLeadPhagocytosisLytic activityCandicidal activityPolymorphonuclear cellsNeutrophilsCandida pseudotropicalisAmphibiaBufo arenarumLead is an element of risk for the environment and human health and has harmful effects that may exceed those of other inorganic toxicants. The immune system is one ofthe targets of lead. Its immunomodulatory actions depend on the level of exposure, and it has been demonstrated that environmental amounts of the metal alter immune function. Very little information is available regarding the effect of the metal on different aspects of the immune system of lower vertebrates, in particular of amphibians. The aim of this study was to investigate the effect of sublethal lead (as acetate) on the function of polymorphonuclear cells of Bufo arenarum. The results revealed that phagocytic and lytic functions ofthe adherent blood cells collected from sublethal lead-injected toads and incubated with suspensions of Candida pseudotropicalis were affected negatively. The decrease of the phagocytic activity was correlated with increased blood lead levels (P-0.0001). Additional information referred to the total and differential leukocyte counts was presented; the only difference found was in the number of blast-like cells that resulted augmented in the samples of lead-injected toads. It was concluded that the evaluation ofthese parameters might be a reliable tool for the biological monitoring of the immune status of amphibians.Facultad de Ciencias ExactasComisión de Investigaciones Científicas de la provincia de Buenos Aires2003info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf225-233http://sedici.unlp.edu.ar/handle/10915/114716enginfo:eu-repo/semantics/altIdentifier/issn/1532-0456info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cca.2003.09.004info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:26:44Zoai:sedici.unlp.edu.ar:10915/114716Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:26:44.684SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
title |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
spellingShingle |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils Rosenberg, Carolina Elena Biología Lead Phagocytosis Lytic activity Candicidal activity Polymorphonuclear cells Neutrophils Candida pseudotropicalis Amphibia Bufo arenarum |
title_short |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
title_full |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
title_fullStr |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
title_full_unstemmed |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
title_sort |
Effect of lead acetate on the in vitro engulfment and killing capability of toad (<i>Bufo arenarum</i>) neutrophils |
dc.creator.none.fl_str_mv |
Rosenberg, Carolina Elena Fink, Nilda Esther Arrieta, Marcos A. Salibian, Alfredo |
author |
Rosenberg, Carolina Elena |
author_facet |
Rosenberg, Carolina Elena Fink, Nilda Esther Arrieta, Marcos A. Salibian, Alfredo |
author_role |
author |
author2 |
Fink, Nilda Esther Arrieta, Marcos A. Salibian, Alfredo |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Biología Lead Phagocytosis Lytic activity Candicidal activity Polymorphonuclear cells Neutrophils Candida pseudotropicalis Amphibia Bufo arenarum |
topic |
Biología Lead Phagocytosis Lytic activity Candicidal activity Polymorphonuclear cells Neutrophils Candida pseudotropicalis Amphibia Bufo arenarum |
dc.description.none.fl_txt_mv |
Lead is an element of risk for the environment and human health and has harmful effects that may exceed those of other inorganic toxicants. The immune system is one ofthe targets of lead. Its immunomodulatory actions depend on the level of exposure, and it has been demonstrated that environmental amounts of the metal alter immune function. Very little information is available regarding the effect of the metal on different aspects of the immune system of lower vertebrates, in particular of amphibians. The aim of this study was to investigate the effect of sublethal lead (as acetate) on the function of polymorphonuclear cells of Bufo arenarum. The results revealed that phagocytic and lytic functions ofthe adherent blood cells collected from sublethal lead-injected toads and incubated with suspensions of Candida pseudotropicalis were affected negatively. The decrease of the phagocytic activity was correlated with increased blood lead levels (P-0.0001). Additional information referred to the total and differential leukocyte counts was presented; the only difference found was in the number of blast-like cells that resulted augmented in the samples of lead-injected toads. It was concluded that the evaluation ofthese parameters might be a reliable tool for the biological monitoring of the immune status of amphibians. Facultad de Ciencias Exactas Comisión de Investigaciones Científicas de la provincia de Buenos Aires |
description |
Lead is an element of risk for the environment and human health and has harmful effects that may exceed those of other inorganic toxicants. The immune system is one ofthe targets of lead. Its immunomodulatory actions depend on the level of exposure, and it has been demonstrated that environmental amounts of the metal alter immune function. Very little information is available regarding the effect of the metal on different aspects of the immune system of lower vertebrates, in particular of amphibians. The aim of this study was to investigate the effect of sublethal lead (as acetate) on the function of polymorphonuclear cells of Bufo arenarum. The results revealed that phagocytic and lytic functions ofthe adherent blood cells collected from sublethal lead-injected toads and incubated with suspensions of Candida pseudotropicalis were affected negatively. The decrease of the phagocytic activity was correlated with increased blood lead levels (P-0.0001). Additional information referred to the total and differential leukocyte counts was presented; the only difference found was in the number of blast-like cells that resulted augmented in the samples of lead-injected toads. It was concluded that the evaluation ofthese parameters might be a reliable tool for the biological monitoring of the immune status of amphibians. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/114716 |
url |
http://sedici.unlp.edu.ar/handle/10915/114716 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1532-0456 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cca.2003.09.004 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf 225-233 |
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