dc.contributor.author |
Whiting, Beatrice M |
|
dc.date.accessioned |
2011-08-29T03:09:12Z |
|
dc.date.accessioned |
2022-10-30T20:11:11Z |
|
dc.date.available |
2011-08-29T03:09:12Z |
|
dc.date.available |
2022-10-30T20:11:11Z |
|
dc.date.copyright |
2003 |
|
dc.date.issued |
2003 |
|
dc.identifier.uri |
https://ir.wgtn.ac.nz/handle/123456789/26087 |
|
dc.description.abstract |
Recreational use of 3,4-methylenedioxymethamphetamine (MDMA or 'ecstasy') has increased considerably in recent years. MDMA is a ring-substituted amphetamine derivative that produces increased synaptic levels of serotonin (5-HT) and dopamine (DA). MDMA induces hyperactivity in laboratory rats in a manner similar to other structurally related stimulant drugs. There is increasing evidence that administration of MDMA results in neurotoxicity. Specifically, MDMA has been shown to significantly decrease regional brain 5-HT content and to produce nerve terminal degeneration in rodent and primate brains. Serotonergic transmission changes induced by MDMA have been reported to cause altered function and density of 5-HT receptors. In the present study, the functional status of 5-HT 2C receptors in MDMA-exposed and control rats was compared by examining the effects of selective antagonists on locomotor activity. MDMA (10.0 mg/kg)-induced hyperactivity was potentiated by pre-treatment with the selective 5-HT 2C antagonists, RS102221 and SB200646. In order to determine whether MDMA pre-treatment altered these effects, rats were pretreated with MDMA (4 x 10.0 mg/kg MDMA at 2 hr intervals) or the saline vehicle 2 weeks prior to locomotor tests. 5-HT 2C receptor antagonists failed to potentiate MDMA-produced hyperactivity for rats that received pre-exposure to MDMA, suggesting a down-regulation of this receptor subtype. |
en_NZ |
dc.format |
pdf |
en_NZ |
dc.language |
en_NZ |
|
dc.language.iso |
en_NZ |
|
dc.publisher |
Te Herenga Waka—Victoria University of Wellington |
en_NZ |
dc.title |
Effect of ±3,4-methylenedioxymethamphetamine pre-treatment on Serotonin 2C receptor function |
en_NZ |
dc.type |
Text |
en_NZ |
vuwschema.type.vuw |
Awarded Research Masters Thesis |
en_NZ |
thesis.degree.grantor |
Te Herenga Waka—Victoria University of Wellington |
en_NZ |
thesis.degree.level |
Masters |
en_NZ |
thesis.degree.name |
Master of Science |
en_NZ |