Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks

Autores
Marin, Raul Hector; Benavidez, E.; Garcia, D. A.; Satterlee, D.G.
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The purpose of the study was to determine the effect of sex on central benzodiazepine receptor (CBR) and serum corticosterone (CS) responses to an acute stressor in broiler chicks. Birds were housed in ten mixed-sex groups of eight chicks per cage. At 15 d of age, chicks were taken from a randomly selected cage and blood was immediately sampled (undisturbed controls), or they were taken from the same cage and immersed up to their necks in warm water (partial water immersion, PWI) for 15 min before blood was sampled. After blood sampling, forebrains were dissected for preparation of membranes, and bird sex was determined by gonadal inspection. Serum CS levels were determined by a competitive protein-binding assay. CBR densities were determined by radiolabeled receptor binding assay. There were no sex differences in serum CS levels or benzodiazepine receptor densities in controls. Exposure to PWI significantly increased (P < 0.01) circulating CS levels in both sexes, and this elevation was more pronounced (P < 0.01) in males than in females. Male, but not female, chicks also showed a significant stressor-induced increase (P < 0.01) in CBR densities. These findings showed sexual differences in acute, stressor-induced benzodiazepine and adrenocortical responses that suggest broiler males are more stress-susceptible than females.
Fil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. State University of Louisiana; Estados Unidos
Fil: Benavidez, E.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Garcia, D. A.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Satterlee, D.G.. State University of Louisiana; Estados Unidos
Materia
ACUTE STRESS
BENZODIAZEPINE RECEPTOR
BROILER CHICK
SERUM CORTICOSTERONE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/66797
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66797
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicksMarin, Raul HectorBenavidez, E.Garcia, D. A.Satterlee, D.G.ACUTE STRESSBENZODIAZEPINE RECEPTORBROILER CHICKSERUM CORTICOSTERONEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The purpose of the study was to determine the effect of sex on central benzodiazepine receptor (CBR) and serum corticosterone (CS) responses to an acute stressor in broiler chicks. Birds were housed in ten mixed-sex groups of eight chicks per cage. At 15 d of age, chicks were taken from a randomly selected cage and blood was immediately sampled (undisturbed controls), or they were taken from the same cage and immersed up to their necks in warm water (partial water immersion, PWI) for 15 min before blood was sampled. After blood sampling, forebrains were dissected for preparation of membranes, and bird sex was determined by gonadal inspection. Serum CS levels were determined by a competitive protein-binding assay. CBR densities were determined by radiolabeled receptor binding assay. There were no sex differences in serum CS levels or benzodiazepine receptor densities in controls. Exposure to PWI significantly increased (P < 0.01) circulating CS levels in both sexes, and this elevation was more pronounced (P < 0.01) in males than in females. Male, but not female, chicks also showed a significant stressor-induced increase (P < 0.01) in CBR densities. These findings showed sexual differences in acute, stressor-induced benzodiazepine and adrenocortical responses that suggest broiler males are more stress-susceptible than females.Fil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. State University of Louisiana; Estados UnidosFil: Benavidez, E.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Garcia, D. A.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Satterlee, D.G.. State University of Louisiana; Estados UnidosPoultry Science Association2002-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66797Marin, Raul Hector; Benavidez, E.; Garcia, D. A.; Satterlee, D.G.; Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks; Poultry Science Association; Poultry Science; 81; 2; 1-2-2002; 261-2640032-57911525-3171CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/ps/81.2.261info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ps/article/81/2/261/1576491info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:39Zoai:ri.conicet.gov.ar:11336/66797instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:34:39.364CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
title Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
spellingShingle Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
Marin, Raul Hector
ACUTE STRESS
BENZODIAZEPINE RECEPTOR
BROILER CHICK
SERUM CORTICOSTERONE
title_short Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
title_full Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
title_fullStr Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
title_full_unstemmed Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
title_sort Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks
dc.creator.none.fl_str_mv Marin, Raul Hector
Benavidez, E.
Garcia, D. A.
Satterlee, D.G.
author Marin, Raul Hector
author_facet Marin, Raul Hector
Benavidez, E.
Garcia, D. A.
Satterlee, D.G.
author_role author
author2 Benavidez, E.
Garcia, D. A.
Satterlee, D.G.
author2_role author
author
author
dc.subject.none.fl_str_mv ACUTE STRESS
BENZODIAZEPINE RECEPTOR
BROILER CHICK
SERUM CORTICOSTERONE
topic ACUTE STRESS
BENZODIAZEPINE RECEPTOR
BROILER CHICK
SERUM CORTICOSTERONE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The purpose of the study was to determine the effect of sex on central benzodiazepine receptor (CBR) and serum corticosterone (CS) responses to an acute stressor in broiler chicks. Birds were housed in ten mixed-sex groups of eight chicks per cage. At 15 d of age, chicks were taken from a randomly selected cage and blood was immediately sampled (undisturbed controls), or they were taken from the same cage and immersed up to their necks in warm water (partial water immersion, PWI) for 15 min before blood was sampled. After blood sampling, forebrains were dissected for preparation of membranes, and bird sex was determined by gonadal inspection. Serum CS levels were determined by a competitive protein-binding assay. CBR densities were determined by radiolabeled receptor binding assay. There were no sex differences in serum CS levels or benzodiazepine receptor densities in controls. Exposure to PWI significantly increased (P < 0.01) circulating CS levels in both sexes, and this elevation was more pronounced (P < 0.01) in males than in females. Male, but not female, chicks also showed a significant stressor-induced increase (P < 0.01) in CBR densities. These findings showed sexual differences in acute, stressor-induced benzodiazepine and adrenocortical responses that suggest broiler males are more stress-susceptible than females.
Fil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. State University of Louisiana; Estados Unidos
Fil: Benavidez, E.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Garcia, D. A.. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Satterlee, D.G.. State University of Louisiana; Estados Unidos
description The purpose of the study was to determine the effect of sex on central benzodiazepine receptor (CBR) and serum corticosterone (CS) responses to an acute stressor in broiler chicks. Birds were housed in ten mixed-sex groups of eight chicks per cage. At 15 d of age, chicks were taken from a randomly selected cage and blood was immediately sampled (undisturbed controls), or they were taken from the same cage and immersed up to their necks in warm water (partial water immersion, PWI) for 15 min before blood was sampled. After blood sampling, forebrains were dissected for preparation of membranes, and bird sex was determined by gonadal inspection. Serum CS levels were determined by a competitive protein-binding assay. CBR densities were determined by radiolabeled receptor binding assay. There were no sex differences in serum CS levels or benzodiazepine receptor densities in controls. Exposure to PWI significantly increased (P < 0.01) circulating CS levels in both sexes, and this elevation was more pronounced (P < 0.01) in males than in females. Male, but not female, chicks also showed a significant stressor-induced increase (P < 0.01) in CBR densities. These findings showed sexual differences in acute, stressor-induced benzodiazepine and adrenocortical responses that suggest broiler males are more stress-susceptible than females.
publishDate 2002
dc.date.none.fl_str_mv 2002-02-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/66797
Marin, Raul Hector; Benavidez, E.; Garcia, D. A.; Satterlee, D.G.; Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks; Poultry Science Association; Poultry Science; 81; 2; 1-2-2002; 261-264
0032-5791
1525-3171
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66797
identifier_str_mv Marin, Raul Hector; Benavidez, E.; Garcia, D. A.; Satterlee, D.G.; Sex differences in central benzodiazepine receptor densities and circulating corticosterone release after acute stress in broiler chicks; Poultry Science Association; Poultry Science; 81; 2; 1-2-2002; 261-264
0032-5791
1525-3171
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/ps/81.2.261
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/ps/article/81/2/261/1576491
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Poultry Science Association
publisher.none.fl_str_mv Poultry Science Association
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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