178 research outputs found
Induction of α1-tubulin gene expression during development and regeneration of the fish central nervous system
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
Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe
ALTERATIONS HISTOLOGIQUES DE QUELQUES GLANDES ENDOCRINES CHEZ LA RATE, APRES L'ADMINISTRATION D'UN CARCINOGENE CHIMIQUE
SCOPUS: NotDefined.jinfo:eu-repo/semantics/publishe
Histologie générale et histologie spéciale des animaux domestiques
SYL-8553 = Volume 1 ;SYL-8554 = Volume 2Volume 1 :Les tissus -- Volume 2 :Organologie comparéeVETE2, VETE014/VETE004info:eu-repo/semantics/published
Histologie animale fonctionnelle
SYL-8549 = Première partiePremière partie :Histologie générale y compris la neurocytologieBIOL3, BIOL039info:eu-repo/semantics/published
Biologie et génétique
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)
1e lic. Sc. zool.Première édition 1981-1982info:eu-repo/semantics/published
Histologie animale
SYL-007606 = Fasicule 1 ;SYL-007605 = Fascicule 2 ;SYL-007604 = Travaux pratiques et démonstrationsBIOL2 - BIOL-F-203info:eu-repo/semantics/published
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