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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 11 to 11 of 11 (0.037 seconds)

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11

N-Methyl-D-Aspartat-Antagonisten induzierten apoptotische Zelluntergänge im Gehirn junger Ratten

Miksa, Michael 06 April 2004 (has links)
Der wichtigste exzitatorische Neurotransmitter Glutamat spielt eine grosse Rolle in der Gehirnentwicklung, wie neuronale Migration und Synaptogenese. Ob glutamaterge Stimulation für das Überleben entwickelnder Neuronen notwendig ist, war bislang jedoch unbekannt. Um zu untersuchen, ob eine Hemmung von Glutamatrezeptoren im unreifen Gehirn zu Neurodegeneration führt, wurden Ratten im Alter von 1 bis 31 Tagen für 24 Stunden mit dem N-Methyl-D-Aspartat-(NMDA) Glutamatrezeptorantagonisten Dizocilpin (MK801) behandelt. Die Dichte neuronaler Degeneration wurde mikroskopisch in Kupfer-Silber- und TUNEL- gefärbten Hirnschnittpräparaten ermittelt und Unterschiede mittels ANOVA analysiert (Signifikanzniveau p / The predominant excitatory neurotransmitter glutamate plays a major role in certain aspects of neural development. However, whether developing neurons depend on glutamate for survival remains unknown. To investigate if deprivation of glutamate stimulation in the immature mammalian brain causes neuronal cell death (apoptosis), rat pups aged 0 to 30 days were treated for 24 hours with dizocilpine maleate (MK801), an N-methyl-D-aspartate-(NMDA) glutamate receptor antagonist. Density of neural degeneration was evaluated by a stereological dissector method in cupric-silver and TUNEL-stained brain slices. Groups were compared by ANOVA and significance considered at p
Apoptose
Tier/Ratten
Neuronalale Degeneration
Apoptosis
Animal/Rats
Dizocilpine Maleate (MK801)/pharmacology
Nerve Degeneration
Neurons/cytology/drug effects/metabolism
Receptors
610 Medizin
33 Medizin
WC 6570
YG 3900
WW 4120
YG 4300
ddc:610

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