967 resultados para Stinglhamber, Florence
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Comprend : [Pl. en reg. Folio aii : le frère Pierre de Canuntis enseignant la musique.] [Cote : Res V 528/Microfilm R 21020] ; [Fig.: Orphée charmant les animaux ? Châpitre sur les ténors et les contres.] [Cote : Res V 528/Microfilm R 21020] ; [Pl. en reg. Folio bii : notes et tons. Théorisation de la musique.] [Cote : Res V 528/Microfilm R 21020] ; [Pl. en reg. Folio d : théorisation de la musqiue. Schéma illustrant les consonnances.] [Cote : Res V 528/Microfilm R 21020] ; [Pl. après folio gii : théorisation de la musique. Notes et tons.] [Cote : Res V 528/Microfilm R 21020]
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J. Neurochem. (2010) 10.1111/j.1471-4159.2010.06705.x Abstract Retinal excitotoxicity is associated with retinal ischemia, and with glaucomatous and traumatic optic neuropathy. The present study investigates the role of c-Jun N-terminal kinase (JNK) activation in NMDA-mediated retinal excitotoxicity and determines whether neuroprotection can be obtained with the JNK pathway inhibitor, d-form of JNK-inhibitor 1 (d-JNKI-1). Young adult rats received intravitreal injections of 20 nmol NMDA, which caused extensive neuronal death in the inner nuclear and ganglion cell layers. This excitotoxicity was associated with strong activation of calpain, as revealed by fodrin cleavage, and of JNK. The cell-permeable peptide d-JNKI-1 was used to inhibit JNK. Within 40 min of its intravitreal injection, FITC-labeled d-JNKI-1 spread through the retinal ganglion cell layer into the inner nuclear layer and interfered with the NMDA-induced phosphorylation of JNK. Injections of unlabeled d-JNKI-1 gave unprecedentedly strong neuroprotection against cell death in both layers, lasting for at least 10 days. The NMDA-induced calpain-specific fodrin cleavage was likewise strongly inhibited by d-JNKI-1. Moreover the electroretinogram was partially preserved by d-JNKI-1. Thus, the JNK pathway is involved in NMDA-mediated retinal excitotoxicity and JNK inhibition by d-JNKI-1 provides strong neuroprotection as shown morphologically, biochemically and physiologically.
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Référence bibliographique : Weigert, 140
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Référence bibliographique : Weigert, 142
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Référence bibliographique : Weigert, 141
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Référence bibliographique : Weigert, 154
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Référence bibliographique : Weigert, 153
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Référence bibliographique : Weigert, 150
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Référence bibliographique : Weigert, 158
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Référence bibliographique : Weigert, 151
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Référence bibliographique : Weigert, 147
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Référence bibliographique : Weigert, 148
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Référence bibliographique : Weigert, 149