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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.
1

Characterization of the modulatory effects of neurosteroids on dorsal raphe neurons in a non anaesthetized rats preparation

Creamer, Katherine. January 2007 (has links)
Dorsal raphe nucleus (DRN) neurons projects to widespread areas throughout the brain and are involved in many physiological functions and neuropsychiatric disorders. In particular, DRN serotonin (5-HT) neurons are thought to be implicated in major depressive disorder (MDD) as are steroid hormones. Therefore, the aim of this thesis was to assess the effects of some neurosteroids on DRN neurons in non-anaesthetized rats. Initially, we examined electrophysiological properties of dorsal raphe cells across the sleep---wake cycle in non-anaethetized rats. In this first study we characterized six distinct neuronal populations in the DRN based on spike waveform and firing pattern. We then examined the effects of DHEA-S and testosterone (T) on the firing properties of DRN neuronal populations previously characterized. We observed that most populations exhibited an initial decrease in firing activity following one week of treatment. However, there was a great variability in responses across the populations.
2

Characterization of the modulatory effects of neurosteroids on dorsal raphe neurons in a non anaesthetized rats preparation

Creamer, Katherine. January 2007 (has links)
No description available.

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