Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress
- Autores
- Fernández Mateos, Pilar; Jiménez Ortega, Vanesa; Cano Barquilla, Pilar; Cardinali, Daniel Pedro; Esquifino, Ana I.
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Aims: Discontinuous (weekend) consumption of alcohol is common in adolescents and young adults. This study therefore assesses, in peripubertal male rats, the effect of discontinuous as compared to chronic feeding of ethanol or control liquid diet. Methods: Animals received an ethanol liquid diet (6.2 % w/v) starting on day 35 of life. Every week for 5 weeks, the discontinuous ethanol group received the ethanol diet for 3 consecutive days and the control liquid diet for 4 days. At the 5th week, 24 h after the last ethanol administration to the discontinuously ethanol-treated animals, rats were killed at 4-hour intervals beginning at 09.00 h. Chronically administered rats received the ethanol diet until immediately before study. Results: Disrupted 24-hour rhythmicity together with a significant nocturnal increase in plasma luteinizing hormone (LH), testosterone and prolactin (PRL) occurred in the discontinuous ethanol group. Plasma ethanol levels were undetectable at 24 h after the last ethanol treatment. In contrast, after chronic ethanol administration, plasma PRL was increased late in scotophase while LH and testosterone decreased; blood ethanol levels were 2-fold greater than those in discontinuously ethanol-administered rats killed immediately after ethanol withdrawal. Circulating testosterone positively correlated with LH levels in control rats only. Chronic administration of ethanol significantly augmented mean expression of pituitary nitric oxide synthase (NOS)-2, heme oxygenase (HO)-1, Per1 and Per2 genes and disrupted their diurnal rhythmicity. Decreased NOS-1 and NOS-2 expression during scotophase, together with suppression of the rhythm in Per1 and Per2 expression, were found in the discontinuous ethanol group. Conclusions: Abstinence after discontinuous drinking of alcohol in rats, as compared to chronic administration of ethanol, is accompanied by increases of plasma LH and testosterone, a greater PRL response and a less pronounced oxidative damage of the anterior pituitary.
Fil: Fernández Mateos, Pilar. Universidad Complutense de Madrid; España
Fil: Jiménez Ortega, Vanesa. Universidad Complutense de Madrid; España
Fil: Cano Barquilla, Pilar. Universidad Complutense de Madrid; España
Fil: Cardinali, Daniel Pedro. Universidad de Buenos Aires; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Esquifino, Ana I.. Universidad Complutense de Madrid; España - Materia
-
ALCOHOLISM
ANTERIOR PITUITARY
CHRONIC ALCOHOL
CLOCK GENES
HYPOTHALAMIC-PITUITARY-GONADAL AXIS
LIBIDO
OXIDATIVE STRESS
PROLACTIN
REPRODUCTION
THYROID-STIMULATING HORMONE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/194450
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/194450 |
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CONICET Digital (CONICET) |
spelling |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stressFernández Mateos, PilarJiménez Ortega, VanesaCano Barquilla, PilarCardinali, Daniel PedroEsquifino, Ana I.ALCOHOLISMANTERIOR PITUITARYCHRONIC ALCOHOLCLOCK GENESHYPOTHALAMIC-PITUITARY-GONADAL AXISLIBIDOOXIDATIVE STRESSPROLACTINREPRODUCTIONTHYROID-STIMULATING HORMONEhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Aims: Discontinuous (weekend) consumption of alcohol is common in adolescents and young adults. This study therefore assesses, in peripubertal male rats, the effect of discontinuous as compared to chronic feeding of ethanol or control liquid diet. Methods: Animals received an ethanol liquid diet (6.2 % w/v) starting on day 35 of life. Every week for 5 weeks, the discontinuous ethanol group received the ethanol diet for 3 consecutive days and the control liquid diet for 4 days. At the 5th week, 24 h after the last ethanol administration to the discontinuously ethanol-treated animals, rats were killed at 4-hour intervals beginning at 09.00 h. Chronically administered rats received the ethanol diet until immediately before study. Results: Disrupted 24-hour rhythmicity together with a significant nocturnal increase in plasma luteinizing hormone (LH), testosterone and prolactin (PRL) occurred in the discontinuous ethanol group. Plasma ethanol levels were undetectable at 24 h after the last ethanol treatment. In contrast, after chronic ethanol administration, plasma PRL was increased late in scotophase while LH and testosterone decreased; blood ethanol levels were 2-fold greater than those in discontinuously ethanol-administered rats killed immediately after ethanol withdrawal. Circulating testosterone positively correlated with LH levels in control rats only. Chronic administration of ethanol significantly augmented mean expression of pituitary nitric oxide synthase (NOS)-2, heme oxygenase (HO)-1, Per1 and Per2 genes and disrupted their diurnal rhythmicity. Decreased NOS-1 and NOS-2 expression during scotophase, together with suppression of the rhythm in Per1 and Per2 expression, were found in the discontinuous ethanol group. Conclusions: Abstinence after discontinuous drinking of alcohol in rats, as compared to chronic administration of ethanol, is accompanied by increases of plasma LH and testosterone, a greater PRL response and a less pronounced oxidative damage of the anterior pituitary.Fil: Fernández Mateos, Pilar. Universidad Complutense de Madrid; EspañaFil: Jiménez Ortega, Vanesa. Universidad Complutense de Madrid; EspañaFil: Cano Barquilla, Pilar. Universidad Complutense de Madrid; EspañaFil: Cardinali, Daniel Pedro. Universidad de Buenos Aires; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Esquifino, Ana I.. Universidad Complutense de Madrid; EspañaKarger2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/194450Fernández Mateos, Pilar; Jiménez Ortega, Vanesa; Cano Barquilla, Pilar; Cardinali, Daniel Pedro; Esquifino, Ana I.; Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress; Karger; Neuroendocrinology; 96; 3; 1-2012; 194-2030028-3835CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.karger.com/Article/Abstract/334963info:eu-repo/semantics/altIdentifier/doi/10.1159/000334963info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:59Zoai:ri.conicet.gov.ar:11336/194450instacron: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:34982025-09-03 09:55:59.953CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
title |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
spellingShingle |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress Fernández Mateos, Pilar ALCOHOLISM ANTERIOR PITUITARY CHRONIC ALCOHOL CLOCK GENES HYPOTHALAMIC-PITUITARY-GONADAL AXIS LIBIDO OXIDATIVE STRESS PROLACTIN REPRODUCTION THYROID-STIMULATING HORMONE |
title_short |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
title_full |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
title_fullStr |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
title_full_unstemmed |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
title_sort |
Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress |
dc.creator.none.fl_str_mv |
Fernández Mateos, Pilar Jiménez Ortega, Vanesa Cano Barquilla, Pilar Cardinali, Daniel Pedro Esquifino, Ana I. |
author |
Fernández Mateos, Pilar |
author_facet |
Fernández Mateos, Pilar Jiménez Ortega, Vanesa Cano Barquilla, Pilar Cardinali, Daniel Pedro Esquifino, Ana I. |
author_role |
author |
author2 |
Jiménez Ortega, Vanesa Cano Barquilla, Pilar Cardinali, Daniel Pedro Esquifino, Ana I. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
ALCOHOLISM ANTERIOR PITUITARY CHRONIC ALCOHOL CLOCK GENES HYPOTHALAMIC-PITUITARY-GONADAL AXIS LIBIDO OXIDATIVE STRESS PROLACTIN REPRODUCTION THYROID-STIMULATING HORMONE |
topic |
ALCOHOLISM ANTERIOR PITUITARY CHRONIC ALCOHOL CLOCK GENES HYPOTHALAMIC-PITUITARY-GONADAL AXIS LIBIDO OXIDATIVE STRESS PROLACTIN REPRODUCTION THYROID-STIMULATING HORMONE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Aims: Discontinuous (weekend) consumption of alcohol is common in adolescents and young adults. This study therefore assesses, in peripubertal male rats, the effect of discontinuous as compared to chronic feeding of ethanol or control liquid diet. Methods: Animals received an ethanol liquid diet (6.2 % w/v) starting on day 35 of life. Every week for 5 weeks, the discontinuous ethanol group received the ethanol diet for 3 consecutive days and the control liquid diet for 4 days. At the 5th week, 24 h after the last ethanol administration to the discontinuously ethanol-treated animals, rats were killed at 4-hour intervals beginning at 09.00 h. Chronically administered rats received the ethanol diet until immediately before study. Results: Disrupted 24-hour rhythmicity together with a significant nocturnal increase in plasma luteinizing hormone (LH), testosterone and prolactin (PRL) occurred in the discontinuous ethanol group. Plasma ethanol levels were undetectable at 24 h after the last ethanol treatment. In contrast, after chronic ethanol administration, plasma PRL was increased late in scotophase while LH and testosterone decreased; blood ethanol levels were 2-fold greater than those in discontinuously ethanol-administered rats killed immediately after ethanol withdrawal. Circulating testosterone positively correlated with LH levels in control rats only. Chronic administration of ethanol significantly augmented mean expression of pituitary nitric oxide synthase (NOS)-2, heme oxygenase (HO)-1, Per1 and Per2 genes and disrupted their diurnal rhythmicity. Decreased NOS-1 and NOS-2 expression during scotophase, together with suppression of the rhythm in Per1 and Per2 expression, were found in the discontinuous ethanol group. Conclusions: Abstinence after discontinuous drinking of alcohol in rats, as compared to chronic administration of ethanol, is accompanied by increases of plasma LH and testosterone, a greater PRL response and a less pronounced oxidative damage of the anterior pituitary. Fil: Fernández Mateos, Pilar. Universidad Complutense de Madrid; España Fil: Jiménez Ortega, Vanesa. Universidad Complutense de Madrid; España Fil: Cano Barquilla, Pilar. Universidad Complutense de Madrid; España Fil: Cardinali, Daniel Pedro. Universidad de Buenos Aires; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Esquifino, Ana I.. Universidad Complutense de Madrid; España |
description |
Aims: Discontinuous (weekend) consumption of alcohol is common in adolescents and young adults. This study therefore assesses, in peripubertal male rats, the effect of discontinuous as compared to chronic feeding of ethanol or control liquid diet. Methods: Animals received an ethanol liquid diet (6.2 % w/v) starting on day 35 of life. Every week for 5 weeks, the discontinuous ethanol group received the ethanol diet for 3 consecutive days and the control liquid diet for 4 days. At the 5th week, 24 h after the last ethanol administration to the discontinuously ethanol-treated animals, rats were killed at 4-hour intervals beginning at 09.00 h. Chronically administered rats received the ethanol diet until immediately before study. Results: Disrupted 24-hour rhythmicity together with a significant nocturnal increase in plasma luteinizing hormone (LH), testosterone and prolactin (PRL) occurred in the discontinuous ethanol group. Plasma ethanol levels were undetectable at 24 h after the last ethanol treatment. In contrast, after chronic ethanol administration, plasma PRL was increased late in scotophase while LH and testosterone decreased; blood ethanol levels were 2-fold greater than those in discontinuously ethanol-administered rats killed immediately after ethanol withdrawal. Circulating testosterone positively correlated with LH levels in control rats only. Chronic administration of ethanol significantly augmented mean expression of pituitary nitric oxide synthase (NOS)-2, heme oxygenase (HO)-1, Per1 and Per2 genes and disrupted their diurnal rhythmicity. Decreased NOS-1 and NOS-2 expression during scotophase, together with suppression of the rhythm in Per1 and Per2 expression, were found in the discontinuous ethanol group. Conclusions: Abstinence after discontinuous drinking of alcohol in rats, as compared to chronic administration of ethanol, is accompanied by increases of plasma LH and testosterone, a greater PRL response and a less pronounced oxidative damage of the anterior pituitary. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01 |
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/11336/194450 Fernández Mateos, Pilar; Jiménez Ortega, Vanesa; Cano Barquilla, Pilar; Cardinali, Daniel Pedro; Esquifino, Ana I.; Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress; Karger; Neuroendocrinology; 96; 3; 1-2012; 194-203 0028-3835 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/194450 |
identifier_str_mv |
Fernández Mateos, Pilar; Jiménez Ortega, Vanesa; Cano Barquilla, Pilar; Cardinali, Daniel Pedro; Esquifino, Ana I.; Discontinuous versus continuous drinking of ethanol in peripubertal rats: Effect on 24-hour pattern of hypophyseal-gonadal axis activity and anterior pituitary oxidative stress; Karger; Neuroendocrinology; 96; 3; 1-2012; 194-203 0028-3835 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.karger.com/Article/Abstract/334963 info:eu-repo/semantics/altIdentifier/doi/10.1159/000334963 |
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 |
Karger |
publisher.none.fl_str_mv |
Karger |
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 |
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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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1842269376479232000 |
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13.13397 |