Sex steroid‐induced neuroplasticity and behavioral activation in birds
Identifieur interne : 001864 ( Main/Corpus ); précédent : 001863; suivant : 001865Sex steroid‐induced neuroplasticity and behavioral activation in birds
Auteurs : Jacques Balthazart ; Thierry D. Charlier ; Jennifer M. Barker ; Takashi Yamamura ; Gregory F. BallSource :
- European Journal of Neuroscience [ 0953-816X ] ; 2010-12.
English descriptors
- KwdEn :
Abstract
The brain of adult homeothermic vertebrates exhibits a higher degree of morphological neuroplasticity than previously thought, and this plasticity is especially prominent in birds. In particular, incorporation of new neurons is widespread throughout the adult avian forebrain, and the volumes of specific nuclei vary seasonally in a prominent manner. We review here work on steroid‐dependent plasticity in birds, based on two cases: the medial preoptic nucleus (POM) of Japanese quail in relation to male sexual behavior, and nucleus HVC in canaries, which regulates song behavior. In male quail, POM volume changes seasonally, and in castrated subjects testosterone almost doubles POM volume within 2 weeks. Significant volume increases are, however, already observable after 1 day. Steroid receptor coactivator‐1 is part of the mechanism mediating these effects. Increases in POM volume reflect changes in cell size or spacing and dendritic branching, but are not associated with an increase in neuron number. In contrast, seasonal changes in HVC volume reflect incorporation of newborn neurons in addition to changes in cell size and spacing. These are induced by treatments with exogenous testosterone or its metabolites. Expression of doublecortin, a microtubule‐associated protein, is increased by testosterone in the HVC but not in the adjacent nidopallium, suggesting that neuron production in the subventricular zone, the birthplace of newborn neurons, is not affected. Together, these data illustrate the high degree of plasticity that extends into adulthood and is characteristic of avian brain structures. Many questions still remain concerning the regulation and specific function of this plasticity.
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DOI: 10.1111/j.1460-9568.2010.07518.x
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B36), B‐4000 Liège 1, Belgium</mods:affiliation></affiliation></author><author><name sortKey="Barker, Jennifer M" sort="Barker, Jennifer M" uniqKey="Barker J" first="Jennifer M." last="Barker">Jennifer M. Barker</name><affiliation><mods:affiliation>University of Liège, GIGA Neurosciences, Research Group in Behavioral Neuroendocrinology, Avenue de l’Hopital, 1 (BAT. B36), B‐4000 Liège 1, Belgium</mods:affiliation></affiliation></author><author><name sortKey="Yamamura, Takashi" sort="Yamamura, Takashi" uniqKey="Yamamura T" first="Takashi" last="Yamamura">Takashi Yamamura</name><affiliation><mods:affiliation>Johns Hopkins University, Department of Psychological and Brain Sciences, Baltimore, MD, USA</mods:affiliation></affiliation></author><author><name sortKey="Ball, Gregory F" sort="Ball, Gregory F" uniqKey="Ball G" first="Gregory F." last="Ball">Gregory F. 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In particular, incorporation of new neurons is widespread throughout the adult avian forebrain, and the volumes of specific nuclei vary seasonally in a prominent manner. We review here work on steroid‐dependent plasticity in birds, based on two cases: the medial preoptic nucleus (POM) of Japanese quail in relation to male sexual behavior, and nucleus HVC in canaries, which regulates song behavior. In male quail, POM volume changes seasonally, and in castrated subjects testosterone almost doubles POM volume within 2 weeks. Significant volume increases are, however, already observable after 1 day. Steroid receptor coactivator‐1 is part of the mechanism mediating these effects. Increases in POM volume reflect changes in cell size or spacing and dendritic branching, but are not associated with an increase in neuron number. In contrast, seasonal changes in HVC volume reflect incorporation of newborn neurons in addition to changes in cell size and spacing. 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B36), B‐4000 Liège 1, Belgium</affiliation></author><author><persName><forename type="first">Takashi</forename><surname>Yamamura</surname></persName><affiliation>Johns Hopkins University, Department of Psychological and Brain Sciences, Baltimore, MD, USA</affiliation></author><author><persName><forename type="first">Gregory F.</forename><surname>Ball</surname></persName><affiliation>Johns Hopkins University, Department of Psychological and Brain Sciences, Baltimore, MD, USA</affiliation></author></analytic><monogr><title level="j">European Journal of Neuroscience</title><idno type="pISSN">0953-816X</idno><idno type="eISSN">1460-9568</idno><idno type="DOI">10.1111/(ISSN)1460-9568</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2010-12"></date><biblScope unit="volume">32</biblScope><biblScope unit="issue">12</biblScope><biblScope unit="page" from="2116">2116</biblScope><biblScope unit="page" to="2132">2132</biblScope></imprint></monogr><idno type="istex">DF977F7C956485DE891D44DA0C15B9D457253777</idno><idno type="DOI">10.1111/j.1460-9568.2010.07518.x</idno><idno type="ArticleID">EJN7518</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2010</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>The brain of adult homeothermic vertebrates exhibits a higher degree of morphological neuroplasticity than previously thought, and this plasticity is especially prominent in birds. In particular, incorporation of new neurons is widespread throughout the adult avian forebrain, and the volumes of specific nuclei vary seasonally in a prominent manner. We review here work on steroid‐dependent plasticity in birds, based on two cases: the medial preoptic nucleus (POM) of Japanese quail in relation to male sexual behavior, and nucleus HVC in canaries, which regulates song behavior. In male quail, POM volume changes seasonally, and in castrated subjects testosterone almost doubles POM volume within 2 weeks. Significant volume increases are, however, already observable after 1 day. Steroid receptor coactivator‐1 is part of the mechanism mediating these effects. Increases in POM volume reflect changes in cell size or spacing and dendritic branching, but are not associated with an increase in neuron number. In contrast, seasonal changes in HVC volume reflect incorporation of newborn neurons in addition to changes in cell size and spacing. These are induced by treatments with exogenous testosterone or its metabolites. Expression of doublecortin, a microtubule‐associated protein, is increased by testosterone in the HVC but not in the adjacent nidopallium, suggesting that neuron production in the subventricular zone, the birthplace of newborn neurons, is not affected. Together, these data illustrate the high degree of plasticity that extends into adulthood and is characteristic of avian brain structures. Many questions still remain concerning the regulation and specific function of this plasticity.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>doublecortin</term></item><item><term>HVC</term></item><item><term>Japanese quail</term></item><item><term>preoptic area</term></item><item><term>sexual behavior</term></item><item><term>songbirds</term></item><item><term>song control system</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2010-12">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/DF977F7C956485DE891D44DA0C15B9D457253777/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1460-9568</doi><issn type="print">0953-816X</issn><issn type="electronic">1460-9568</issn><idGroup><id type="product" value="EJN"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="EUROPEAN JOURNAL OF NEUROSCIENCE">European Journal of Neuroscience</title></titleGroup></publicationMeta><publicationMeta level="part" position="12112"><doi origin="wiley">10.1111/ejn.2010.32.issue-12</doi><titleGroup><title type="specialIssueTitle">Plasticity of Neuroendocrine Systems</title></titleGroup><numberingGroup><numbering type="journalVolume" number="32">32</numbering><numbering type="journalIssue">12</numbering></numberingGroup><coverDate startDate="2010-12">December 2010</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="15" status="forIssue"><doi origin="wiley">10.1111/j.1460-9568.2010.07518.x</doi><idGroup><id type="unit" value="EJN7518"></id></idGroup><countGroup><count type="pageTotal" number="17"></count></countGroup><titleGroup><title type="tocHeading1">SEXUALISATION</title></titleGroup><copyright>© 2010 The Authors. European Journal of Neuroscience © 2010 Federation of European Neuroscience Societies and Blackwell Publishing Ltd</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.3.27 mode:FullText" date="2010-12-12"></event><event type="firstOnline" date="2010-12-12"></event><event type="publishedOnlineFinalForm" date="2010-12-12"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:4.0.1" date="2014-03-12"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-16"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="2116">2116</numbering><numbering type="pageLast" number="2132">2132</numbering></numberingGroup><correspondenceTo>Jacques Balthazart, as above.
E‐mail: <email>jbalthazart@ulg.ac.be</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:EJN.EJN7518.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received 28 June 2010, revised 20 September 2010, accepted 21 September 2010</unparsedEditorialHistory><countGroup><count type="figureTotal" number="5"></count><count type="tableTotal" number="0"></count></countGroup><titleGroup><title type="main">Sex steroid‐induced neuroplasticity and behavioral activation in birds</title><title type="shortAuthors">J. Balthazart <i>et al.</i></title><title type="short">Neuroplasticity in birds</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1"><personName><givenNames>Jacques</givenNames><familyName>Balthazart</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a1"><personName><givenNames>Thierry D.</givenNames><familyName>Charlier</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a1"><personName><givenNames>Jennifer M.</givenNames><familyName>Barker</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a2"><personName><givenNames>Takashi</givenNames><familyName>Yamamura</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a2"><personName><givenNames>Gregory F.</givenNames><familyName>Ball</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="BE"><unparsedAffiliation>University of Liège, GIGA Neurosciences, Research Group in Behavioral Neuroendocrinology, Avenue de l’Hopital, 1 (BAT. B36), B‐4000 Liège 1, Belgium</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="US"><unparsedAffiliation>Johns Hopkins University, Department of Psychological and Brain Sciences, Baltimore, MD, USA</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">doublecortin</keyword><keyword xml:id="k2">HVC</keyword><keyword xml:id="k3">Japanese quail</keyword><keyword xml:id="k4">preoptic area</keyword><keyword xml:id="k5">sexual behavior</keyword><keyword xml:id="k6">songbirds</keyword><keyword xml:id="k7">song control system</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>The brain of adult homeothermic vertebrates exhibits a higher degree of morphological neuroplasticity than previously thought, and this plasticity is especially prominent in birds. In particular, incorporation of new neurons is widespread throughout the adult avian forebrain, and the volumes of specific nuclei vary seasonally in a prominent manner. We review here work on steroid‐dependent plasticity in birds, based on two cases: the medial preoptic nucleus (POM) of Japanese quail in relation to male sexual behavior, and nucleus HVC in canaries, which regulates song behavior. In male quail, POM volume changes seasonally, and in castrated subjects testosterone almost doubles POM volume within 2 weeks. Significant volume increases are, however, already observable after 1 day. Steroid receptor coactivator‐1 is part of the mechanism mediating these effects. Increases in POM volume reflect changes in cell size or spacing and dendritic branching, but are not associated with an increase in neuron number. In contrast, seasonal changes in HVC volume reflect incorporation of newborn neurons in addition to changes in cell size and spacing. These are induced by treatments with exogenous testosterone or its metabolites. Expression of doublecortin, a microtubule‐associated protein, is increased by testosterone in the HVC but not in the adjacent nidopallium, suggesting that neuron production in the subventricular zone, the birthplace of newborn neurons, is not affected. Together, these data illustrate the high degree of plasticity that extends into adulthood and is characteristic of avian brain structures. Many questions still remain concerning the regulation and specific function of this plasticity.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Sex steroid‐induced neuroplasticity and behavioral activation in birds</title></titleInfo><titleInfo type="abbreviated"><title>Neuroplasticity in birds</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Sex steroid‐induced neuroplasticity and behavioral activation in birds</title></titleInfo><name type="personal"><namePart type="given">Jacques</namePart><namePart type="family">Balthazart</namePart><affiliation>University of Liège, GIGA Neurosciences, Research Group in Behavioral Neuroendocrinology, Avenue de l’Hopital, 1 (BAT. B36), B‐4000 Liège 1, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Thierry D.</namePart><namePart type="family">Charlier</namePart><affiliation>University of Liège, GIGA Neurosciences, Research Group in Behavioral Neuroendocrinology, Avenue de l’Hopital, 1 (BAT. B36), B‐4000 Liège 1, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jennifer M.</namePart><namePart type="family">Barker</namePart><affiliation>University of Liège, GIGA Neurosciences, Research Group in Behavioral Neuroendocrinology, Avenue de l’Hopital, 1 (BAT. B36), B‐4000 Liège 1, Belgium</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Takashi</namePart><namePart type="family">Yamamura</namePart><affiliation>Johns Hopkins University, Department of Psychological and Brain Sciences, Baltimore, MD, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Gregory F.</namePart><namePart type="family">Ball</namePart><affiliation>Johns Hopkins University, Department of Psychological and Brain Sciences, Baltimore, MD, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2010-12</dateIssued><edition>Received 28 June 2010, revised 20 September 2010, accepted 21 September 2010</edition><copyrightDate encoding="w3cdtf">2010</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">5</extent></physicalDescription><abstract lang="en">The brain of adult homeothermic vertebrates exhibits a higher degree of morphological neuroplasticity than previously thought, and this plasticity is especially prominent in birds. In particular, incorporation of new neurons is widespread throughout the adult avian forebrain, and the volumes of specific nuclei vary seasonally in a prominent manner. We review here work on steroid‐dependent plasticity in birds, based on two cases: the medial preoptic nucleus (POM) of Japanese quail in relation to male sexual behavior, and nucleus HVC in canaries, which regulates song behavior. In male quail, POM volume changes seasonally, and in castrated subjects testosterone almost doubles POM volume within 2 weeks. Significant volume increases are, however, already observable after 1 day. Steroid receptor coactivator‐1 is part of the mechanism mediating these effects. Increases in POM volume reflect changes in cell size or spacing and dendritic branching, but are not associated with an increase in neuron number. In contrast, seasonal changes in HVC volume reflect incorporation of newborn neurons in addition to changes in cell size and spacing. These are induced by treatments with exogenous testosterone or its metabolites. Expression of doublecortin, a microtubule‐associated protein, is increased by testosterone in the HVC but not in the adjacent nidopallium, suggesting that neuron production in the subventricular zone, the birthplace of newborn neurons, is not affected. Together, these data illustrate the high degree of plasticity that extends into adulthood and is characteristic of avian brain structures. Many questions still remain concerning the regulation and specific function of this plasticity.</abstract><subject lang="en"><genre>Keywords</genre><topic>doublecortin</topic><topic>HVC</topic><topic>Japanese quail</topic><topic>preoptic area</topic><topic>sexual behavior</topic><topic>songbirds</topic><topic>song control system</topic></subject><relatedItem type="host"><titleInfo><title>European Journal of Neuroscience</title></titleInfo><genre type="Journal">journal</genre><identifier type="ISSN">0953-816X</identifier><identifier type="eISSN">1460-9568</identifier><identifier type="DOI">10.1111/(ISSN)1460-9568</identifier><identifier type="PublisherID">EJN</identifier><part><date>2010</date><detail type="title"><title>Plasticity of Neuroendocrine Systems</title></detail><detail type="volume"><caption>vol.</caption><number>32</number></detail><detail type="issue"><caption>no.</caption><number>12</number></detail><extent unit="pages"><start>2116</start><end>2132</end><total>17</total></extent></part></relatedItem><identifier type="istex">DF977F7C956485DE891D44DA0C15B9D457253777</identifier><identifier type="DOI">10.1111/j.1460-9568.2010.07518.x</identifier><identifier type="ArticleID">EJN7518</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2010 The Authors. European Journal of Neuroscience © 2010 Federation of European Neuroscience Societies and Blackwell Publishing Ltd</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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