<?xml version="1.0" encoding="UTF-8"?><mets:mets xmlns:mets="http://www.loc.gov/METS/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:mads="http://www.loc.gov/mads/" xmlns:metsRights="http://cosimo.stanford.edu/sdr/metsrights/" xmlns:suj="http://www.theses.fr/namespace/sujets" xmlns:tef="http://www.abes.fr/abes/documents/tef" xmlns:tefextension="http://www.abes.fr/abes/documents/tefextension" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/METS/ http://www.abes.fr/abes/documents/tef/recommandation/tef_schemas.xsd">
<mets:metsHdr CREATEDATE="2015-02-09T12:37:26" ID="ABES.STAR.THESE_57592.METS_HEADER" LASTMODDATE="2025-09-17T11:53:01Z" RECORDSTATUS="valide">
<mets:agent ROLE="CREATOR">
<mets:name/>
<mets:note>Note</mets:note>
</mets:agent>
<mets:agent ROLE="DISSEMINATOR">
<mets:name>ABES</mets:name>
</mets:agent>
<mets:altRecordID ID="ABES.STAR.THESE_57592.METS_HEADER.ALTERNATE" TYPE=""/>
</mets:metsHdr>
<mets:dmdSec ID="ABES.STAR.THESE_57592.DESCRIPTION_BIBLIOGRAPHIQUE">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_desc_these">
<mets:xmlData>
<tef:thesisRecord>
<dc:title xml:lang="en">Assessment of neuroprotective effects of gamma-hydroxybutyrate and neurosteroids on cellular models of Alzheimer’s disease</dc:title>
<dcterms:alternative xml:lang="fr">Evaluation des effets neuroprotecteurs du gamma-hydroxybutyrate et des neurostéroïdes dans des modèles cellulaires de la maladie d’Alzheimer</dcterms:alternative>
<dc:subject xml:lang="fr">Anti-apoptotique</dc:subject>
<dc:subject xml:lang="fr">Anti-oxydant</dc:subject>
<dc:subject xml:lang="fr">Neuroprotection</dc:subject>
<dc:subject xml:lang="fr">Maladie d’Alzheimer</dc:subject>
<dc:subject xml:lang="fr">GHB</dc:subject>
<dc:subject xml:lang="fr">Neurostéroïdes</dc:subject>
<dc:subject xml:lang="en">Anti-apoptotic</dc:subject>
<dc:subject xml:lang="en">Anti-oxydant drug</dc:subject>
<dc:subject xml:lang="en">Neuroprotection</dc:subject>
<dc:subject xml:lang="en">Alzheimer’s disease</dc:subject>
<dc:subject xml:lang="en">GHB</dc:subject>
<dc:subject xml:lang="en">Neurosteroids</dc:subject>
<dc:subject xsi:type="dcterms:DDC">573.8</dc:subject>
<dc:subject xsi:type="dcterms:DDC">572.8</dc:subject>
<dc:subject xsi:type="dcterms:DDC">616.83</dc:subject>
<tef:sujetRameau xml:lang="fr">
<tef:vedetteRameauNomCommun>
<tef:elementdEntree autoriteExterne="033816913" autoriteSource="Sudoc">Apoptose</tef:elementdEntree>
<tef:subdivision autoriteExterne="03101433X" autoriteSource="Sudoc" type="subdivisionDeSujet">Aspect moléculaire</tef:subdivision>
</tef:vedetteRameauNomCommun>
<tef:vedetteRameauNomCommun>
<tef:elementdEntree autoriteExterne="02765284X" autoriteSource="Sudoc">Maladie d'Alzheimer</tef:elementdEntree>
</tef:vedetteRameauNomCommun>
<tef:vedetteRameauNomCommun>
<tef:elementdEntree autoriteExterne="027733149" autoriteSource="Sudoc">Hormones stéroïdes</tef:elementdEntree>
</tef:vedetteRameauNomCommun>
<tef:vedetteRameauNomCommun>
<tef:elementdEntree autoriteExterne="061025534" autoriteSource="Sudoc">Hydroxy-4 butyrate de sodium</tef:elementdEntree>
</tef:vedetteRameauNomCommun>
<tef:vedetteRameauNomCommun>
<tef:elementdEntree autoriteExterne="147243130" autoriteSource="Sudoc">Métalloprotéinases matricielles</tef:elementdEntree>
</tef:vedetteRameauNomCommun>
<tef:vedetteRameauNomCommun>
<tef:elementdEntree autoriteExterne="035005211" autoriteSource="Sudoc">Stress oxydatif</tef:elementdEntree>
</tef:vedetteRameauNomCommun>
</tef:sujetRameau>
<dcterms:abstract xml:lang="fr">Cette thèse montre que le GHB et les neurostéroïdes protègent efficacement contre la mort neuronale induite par les facteurs étiologiques de la maladie d'Alzheimer, notamment la sur-expression de l'amyloid precursor protein et le stress oxydant. Nous avons identifié un effet additif du GHB et de l'alloprégnanolone qui pourrait résulter de la combinaison des stimulations partielles évoquées par ces molécules sur l'expression des protéines anti-apoptotiques. L'effet du GHB est bloqué par un inhibiteur de l'aromatase, suggérant que le GHB induirait la neuroprotection via la stimulation de la neurostéroïdogenèse. Pour étudier les effets du GHB et des neurostéroïdes sur l’activité des MMP-2 et MMP-9, qui dégradent les peptides amyloïdes, nous avons optimisé un test enzymatique basé sur l’expression de ces protéases dans la levure. Nos résultats préliminaires ne permettent pas encore de conclure mais leur amélioration et combinaison avec des données de RT-qPCR contribueront à déterminer l'action du GHB et des neurostéroïdes sur l'activité et/ou l'expression des MMP. Notre travail suggère que le GHB et les neurostéroïdes pourraient être associés pour élaborer des stratégies neuroprotectrices contre les pertes neuronales provoquées par la maladie d'Alzheimer.</dcterms:abstract>
<dcterms:abstract xml:lang="en">This PhD work showed that GHB and neurosteroids efficiently protect against nerve cell death caused by Alzheimer's disease etiological factors including amyloid precursor protein overexpression and oxidative stress. Interestingly, we identified an additive action of GHB and allopregnanolone that may result from the combination of partial stimulations of anti-apoptotic protein expression induced by both compounds. GHB protective effect was blocked by aromatase inhibitor, suggesting that GHB may also induce neuroprotection via the activation of neurosteroidogenesis. Finally, we have used a yeast-based MMP activity assay to check whether GHB and neurosteroids regulate MMP-2 and MMP-9 activities which control Aβ peptide degradation. We cannot yet conclude from our preliminary results but their improvement and combination with RT-qPCR analyzes will help to determine the modulatory action of GHB and neurosteroids on MMP activity and/or expression. Together, our data suggest that GHB and neurosteroids may be used to develop combined neuroprotective strategies against neuronal loss in AD.</dcterms:abstract>
<dc:type>Electronic Thesis or Dissertation</dc:type>
<dc:type xsi:type="dcterms:DCMIType">Text</dc:type>
<dc:language xsi:type="dcterms:RFC3066">en</dc:language>
</tef:thesisRecord>
</mets:xmlData>
</mets:mdWrap>
</mets:dmdSec>
<mets:dmdSec ID="ABES.STAR.THESE_57592.VERSION_COMPLETE.DESCRIPTION.EDITION_ARCHIVAGE">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_desc_edition">
<mets:xmlData>
<tef:edition>
<dcterms:medium xsi:type="dcterms:IMT">PDF</dcterms:medium>
<dcterms:extent>6891166</dcterms:extent>
<tef:editeur>
<tef:nom>Université de Strasbourg</tef:nom>
<tef:place>Strasbourg</tef:place>
</tef:editeur>
<dcterms:issued xsi:type="dcterms:W3CDTF">2016-12-31</dcterms:issued>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
</tef:edition>
</mets:xmlData>
</mets:mdWrap>
</mets:dmdSec>
<mets:dmdSec ID="ABES.STAR.THESE_57592.VERSION_COMPLETE.DESCRIPTION.EDITION_1">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_desc_edition">
<mets:xmlData>
<tef:edition>
<dcterms:medium xsi:type="dcterms:IMT">application/pdf</dcterms:medium>
<dcterms:extent>5616251</dcterms:extent>
<dc:identifier xsi:type="dcterms:URI">https://publication-theses.unistra.fr/public/theses_doctorat/2014/Wendt_Guillaume_2014_ED414.pdf</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">http://www.theses.fr/2014STRAJ120/abes</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
<dc:identifier xsi:type="dcterms:URI">https://theses.hal.science/tel-01259476</dc:identifier>
</tef:edition>
</mets:xmlData>
</mets:mdWrap>
</mets:dmdSec>
<mets:amdSec>
<mets:techMD ID="ABES.STAR.THESE_57592.ADMINISTRATION">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_admin_these">
<mets:xmlData>
<tef:thesisAdmin>
<tef:auteur>
<tef:nom>Wendt</tef:nom>
<tef:prenom>Guillaume</tef:prenom>
<tef:dateNaissance>1985-08-13</tef:dateNaissance>
<tef:nationalite scheme="ISO-3166-1">FR</tef:nationalite>
<tef:autoriteExterne autoriteSource="Sudoc">190837411</tef:autoriteExterne>
</tef:auteur>
<dc:identifier xsi:type="tef:nationalThesisPID">https://theses.fr/2014STRAJ120</dc:identifier>
<dc:identifier xsi:type="tef:NNT">2014STRAJ120</dc:identifier>
<dc:identifier xsi:type="tef:DOI">https://doi.org/10.70675/a7c54ffcze5a0z4f13za495z8606ec4c36ca</dc:identifier>
<dcterms:dateAccepted xsi:type="dcterms:W3CDTF">2014-10-30</dcterms:dateAccepted>
<tef:thesis.degree>
<tef:thesis.degree.discipline xml:lang="fr">Neurosciences</tef:thesis.degree.discipline>
<tef:thesis.degree.grantor>
<tef:nom>Strasbourg</tef:nom>
<tef:autoriteExterne autoriteSource="Sudoc">131056549</tef:autoriteExterne>
</tef:thesis.degree.grantor>
<tef:thesis.degree.grantor>
<tef:nom>Universität des Saarlandes</tef:nom>
<tef:autoriteInterne>MADS_ETABLISSEMENT_DE_COTUTELLE_1</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">027456528</tef:autoriteExterne>
</tef:thesis.degree.grantor>
<tef:thesis.degree.level>Doctorat</tef:thesis.degree.level>
<tef:thesis.degree.name xml:lang="fr">Docteur es</tef:thesis.degree.name>
</tef:thesis.degree>
<tef:theseSurTravaux>non</tef:theseSurTravaux>
<tef:avisJury>oui</tef:avisJury>
<tef:directeurThese>
<tef:nom>Mensah-Nyagan</tef:nom>
<tef:prenom>Guy Ayikoe</tef:prenom>
<tef:autoriteInterne>MADS_DIRECTEUR_DE_THESE_1</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">121713660</tef:autoriteExterne>
</tef:directeurThese>
<tef:directeurThese>
<tef:nom>Schmitt</tef:nom>
<tef:prenom>Manfred J.</tef:prenom>
<tef:autoriteInterne>MADS_DIRECTEUR_DE_THESE_2</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">091652944</tef:autoriteExterne>
</tef:directeurThese>
<tef:presidentJury>
<tef:nom>Dufour</tef:nom>
<tef:prenom>André</tef:prenom>
<tef:autoriteInterne>MADS_PRESIDENT_DU_JURY</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">139972242</tef:autoriteExterne>
</tef:presidentJury>
<tef:membreJury>
<tef:nom>Diehl</tef:nom>
<tef:prenom>Björn</tef:prenom>
<tef:autoriteInterne>MADS_MEMBRE_DU_JURY_1</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">19083773X</tef:autoriteExterne>
</tef:membreJury>
<tef:membreJury>
<tef:nom>Kemmel</tef:nom>
<tef:prenom>Véronique</tef:prenom>
<tef:autoriteInterne>MADS_MEMBRE_DU_JURY_2</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">148584306</tef:autoriteExterne>
</tef:membreJury>
<tef:rapporteur>
<tef:nom>Müller</tef:nom>
<tef:prenom>Uli</tef:prenom>
<tef:autoriteInterne>MADS_RAPPORTEUR_1</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">190837624</tef:autoriteExterne>
</tef:rapporteur>
<tef:rapporteur>
<tef:nom>Kirsch</tef:nom>
<tef:prenom>Matthias</tef:prenom>
<tef:autoriteInterne>MADS_RAPPORTEUR_2</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">077052153</tef:autoriteExterne>
</tef:rapporteur>
<tef:ecoleDoctorale>
<tef:nom>École doctorale des Sciences de la vie et de la santé (Strasbourg ; 2000-....)</tef:nom>
<tef:autoriteInterne>MADS_ECOLE_DOCTORALE_1</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="Sudoc">156502844</tef:autoriteExterne>
</tef:ecoleDoctorale>
<tef:partenaireRecherche type="laboratoire">
<tef:nom>Biopathologie de la myéline, neuroprotection et stratégies thérapeutiques (Strasbourg ; 2013-2023)</tef:nom>
<tef:autoriteInterne>MADS_PARTENAIRE_DE_RECHERCHE_1</tef:autoriteInterne>
<tef:autoriteExterne autoriteSource="labTEL">223038</tef:autoriteExterne>
<tef:autoriteExterne autoriteSource="Sudoc">176976957</tef:autoriteExterne>
</tef:partenaireRecherche>
<tef:oaiSetSpec>ddc:570</tef:oaiSetSpec>
<tef:oaiSetSpec>ddc:610</tef:oaiSetSpec>
<tef:MADSAuthority authorityID="MADS_ETABLISSEMENT_DE_COTUTELLE_1" type="corporate">
<tef:personMADS>
<mads:namePart type="family">Universität des Saarlandes</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_DIRECTEUR_DE_THESE_1" type="personal">
<tef:personMADS>
<mads:namePart type="family">Mensah-Nyagan</mads:namePart>
<mads:namePart type="given">Guy Ayikoe</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_DIRECTEUR_DE_THESE_2" type="personal">
<tef:personMADS>
<mads:namePart type="family">Schmitt</mads:namePart>
<mads:namePart type="given">Manfred J.</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_PRESIDENT_DU_JURY" type="personal">
<tef:personMADS>
<mads:namePart type="family">Dufour</mads:namePart>
<mads:namePart type="given">André</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_MEMBRE_DU_JURY_1" type="personal">
<tef:personMADS>
<mads:namePart type="family">Diehl</mads:namePart>
<mads:namePart type="given">Björn</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_MEMBRE_DU_JURY_2" type="personal">
<tef:personMADS>
<mads:namePart type="family">Kemmel</mads:namePart>
<mads:namePart type="given">Véronique</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_RAPPORTEUR_1" type="personal">
<tef:personMADS>
<mads:namePart type="family">Müller</mads:namePart>
<mads:namePart type="given">Uli</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_RAPPORTEUR_2" type="personal">
<tef:personMADS>
<mads:namePart type="family">Kirsch</mads:namePart>
<mads:namePart type="given">Matthias</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_ECOLE_DOCTORALE_1" type="corporate">
<tef:personMADS>
<mads:namePart type="family">École doctorale Sciences de la vie et de la santé (Strasbourg)</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
<tef:MADSAuthority authorityID="MADS_PARTENAIRE_DE_RECHERCHE_1" type="corporate">
<tef:personMADS>
<mads:namePart type="family">Biopathologie de la myéline, neuroprotection et stratégies thérapeutiques (Strasbourg)</mads:namePart>
</tef:personMADS>
</tef:MADSAuthority>
</tef:thesisAdmin>
</mets:xmlData>
</mets:mdWrap>
</mets:techMD>
<mets:techMD ID="ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_ARCHIVAGE.TECH_FICHIER.DOSSIER_1.DOSSIER_1.FICHIER_1">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_tech_fichier">
<mets:xmlData>
<tef:meta_fichier>
<tef:formatFichier>PDF</tef:formatFichier>
<tef:taille>6891166</tef:taille>
</tef:meta_fichier>
</mets:xmlData>
</mets:mdWrap>
</mets:techMD>
<mets:rightsMD ID="ABES.STAR.THESE_57592.DROITS_UNIVERSITE">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_droits_etablissement_these">
<mets:xmlData>
<metsRights:RightsDeclarationMD RIGHTSCATEGORY="CONTRACTUAL">
<metsRights:Context CONTEXTCLASS="GENERAL PUBLIC">
<metsRights:Permissions COPY="false" DELETE="false" DISPLAY="true" DUPLICATE="true" MODIFY="false" PRINT="true"/>
</metsRights:Context>
<metsRights:Context CONTEXTCLASS="INSTITUTIONAL AFFILIATE">
<metsRights:Permissions COPY="false" DELETE="false" DISPLAY="true" DUPLICATE="true" MODIFY="false" PRINT="true"/>
</metsRights:Context>
</metsRights:RightsDeclarationMD>
</mets:xmlData>
</mets:mdWrap>
</mets:rightsMD>
<mets:rightsMD ID="ABES.STAR.THESE_57592.DROITS_DOCTORANT">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_droits_auteur_these">
<mets:xmlData>
<metsRights:RightsDeclarationMD RIGHTSCATEGORY="CONTRACTUAL">
<metsRights:Context CONTEXTCLASS="GENERAL PUBLIC">
<metsRights:Permissions COPY="false" DELETE="false" DISPLAY="true" DUPLICATE="true" MODIFY="false" PRINT="true"/>
</metsRights:Context>
<metsRights:Context CONTEXTCLASS="INSTITUTIONAL AFFILIATE">
<metsRights:Permissions COPY="false" DELETE="false" DISPLAY="true" DUPLICATE="true" MODIFY="false" PRINT="true"/>
</metsRights:Context>
</metsRights:RightsDeclarationMD>
</mets:xmlData>
</mets:mdWrap>
</mets:rightsMD>
<mets:rightsMD ID="ABES.STAR.THESE_57592.VERSION_COMPLETE.DROITS">
<mets:mdWrap MDTYPE="OTHER" OTHERMDTYPE="tef_droits_version">
<mets:xmlData>
<metsRights:RightsDeclarationMD RIGHTSCATEGORY="CONTRACTUAL">
<metsRights:Context CONTEXTCLASS="GENERAL PUBLIC">
<metsRights:Permissions COPY="false" DELETE="false" DISPLAY="true" DUPLICATE="true" MODIFY="false" PRINT="true"/>
</metsRights:Context>
<metsRights:Context CONTEXTCLASS="INSTITUTIONAL AFFILIATE">
<metsRights:Permissions COPY="false" DELETE="false" DISPLAY="true" DUPLICATE="true" MODIFY="false" PRINT="true"/>
</metsRights:Context>
</metsRights:RightsDeclarationMD>
</mets:xmlData>
</mets:mdWrap>
</mets:rightsMD>
</mets:amdSec>
<mets:fileSec>
<mets:fileGrp ID="ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_ARCHIVAGE.FILEGRP" USE="archive">
<mets:file ADMID="ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_ARCHIVAGE.TECH_FICHIER.DOSSIER_1.DOSSIER_1.FICHIER_1" ID="ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_ARCHIVAGE.DOSSIER_1.DOSSIER_1.FICHIER_1" SEQ="1">
<mets:FLocat LOCTYPE="URL" xlink:href="STRA/THESE_57592/document/0/0/Wendt_Guillaume_2014_ED414_A.pdf"/>
</mets:file>
</mets:fileGrp>
</mets:fileSec>
<mets:structMap TYPE="logical">
<mets:div ADMID="ABES.STAR.THESE_57592.ADMINISTRATION ABES.STAR.THESE_57592.DROITS_UNIVERSITE ABES.STAR.THESE_57592.DROITS_DOCTORANT" CONTENTIDS="CONTENTIDS.ABES.STAR.THESE_57592" DMDID="ABES.STAR.THESE_57592.DESCRIPTION_BIBLIOGRAPHIQUE" TYPE="THESE">
<mets:div ADMID="ABES.STAR.THESE_57592.VERSION_COMPLETE.DROITS" CONTENTIDS="CONTENTIDS.ABES.STAR.THESE_57592.ABES.STAR.THESE_57592.VERSION_COMPLETE" TYPE="VERSION_COMPLETE">
<mets:div CONTENTIDS="CONTENTIDS.ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_ARCHIVAGE" DMDID="ABES.STAR.THESE_57592.VERSION_COMPLETE.DESCRIPTION.EDITION_ARCHIVAGE" TYPE="EDITION">
<mets:fptr FILEID="ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_ARCHIVAGE.FILEGRP"/>
</mets:div>
<mets:div CONTENTIDS="CONTENTIDS.ABES.STAR.THESE_57592.VERSION_COMPLETE.EDITION_1" DMDID="ABES.STAR.THESE_57592.VERSION_COMPLETE.DESCRIPTION.EDITION_1" TYPE="EDITION"/>
</mets:div>
</mets:div>
</mets:structMap>
</mets:mets>