178 research outputs found

    Induction of α1-tubulin gene expression during development and regeneration of the fish central nervous system

    Full text link
    The α1- and α2-tubulin encoding genes were cloned from a goldfish genomic DNA library. α1- and α2-tubulin RNA expression was examined in developing and adult retinas. These studies demonstrated increased α1-tubulin RNA in presumptive ganglion cells that grow axons early in retinal development and in adult retinal ganglion cells whose optic axons had been damaged. The α2-tubulin RNA was undetectable in developing retina and constitutively expressed in adult retinal ganglion cells regardless of optic nerve crush. To determine if these changes in α1-tubulin RNA reflected changes in α1-tubulin promoter activity, we introduced into zebrafish embryos and adult goldfish retinal explants expression vectors harboring the α1-tubulin gene's promoter. These studies showed that the α1-tubulin promoter confers a developmentally regulated, neuron-restricted pattern of reporter gene expression in vivo and its activity is increased in adult retinal neurons induced to regenerate their axons. Promoter deletions defined regions of α1-tubulin DNA necessary for this pattern of expression. These results suggest that DNA sequences necessary for α1-tubulin gene induction during central nervous system development and regeneration are contained within the α1-tubulin gene's 5′-flanking DNA and that this promoter will be useful for identifying these elements and their DNA binding proteins. © 1998 John Wiley & Sons, Inc. J Neurobiol 37: 429–440, 1998Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/34478/1/8_ftp.pd

    Etude du mécanisme de la rétroaction exercée par les stéroïdes génitaux sur l'hypothalamus du rat mâle et de la femelle masculinisée

    No full text
    Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

    ALTERATIONS HISTOLOGIQUES DE QUELQUES GLANDES ENDOCRINES CHEZ LA RATE, APRES L'ADMINISTRATION D'UN CARCINOGENE CHIMIQUE

    No full text
    SCOPUS: NotDefined.jinfo:eu-repo/semantics/publishe

    Perspectives in modern glycohistochemistry

    No full text
    SCOPUS: re.jinfo:eu-repo/semantics/publishe

    Histologie générale et histologie spéciale des animaux domestiques

    No full text
    SYL-8553 = Volume 1 ;SYL-8554 = Volume 2Volume 1 :Les tissus -- Volume 2 :Organologie comparéeVETE2, VETE014/VETE004info:eu-repo/semantics/published

    Histologie animale fonctionnelle

    No full text
    SYL-8549 = Première partiePremière partie :Histologie générale y compris la neurocytologieBIOL3, BIOL039info:eu-repo/semantics/published

    Biologie et génétique

    No full text
    1ère édition 2000-01/11re année Infirmier(e)s Gradué(e)s Hospitalier(e)s et Accoucheuses, EXTE000info:eu-repo/semantics/published

    Histologie animale (vertèbres)

    No full text
    1e lic. Sc. zool.Première édition 1981-1982info:eu-repo/semantics/published

    Histologie animale

    No full text
    SYL-007606 = Fasicule 1 ;SYL-007605 = Fascicule 2 ;SYL-007604 = Travaux pratiques et démonstrationsBIOL2 - BIOL-F-203info:eu-repo/semantics/published
    • …
    corecore