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A comparison between the non-competitive NMDA antagonist dizocilpine (MK-801) and the competitive NMDA antagonist D-CPPene with regard to dopamine turnover and locomotor-stimulatory properties in mice
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pileblad, Erik Carlsson, Maria Lizzie |
| Copyright Year | 2005 |
| Abstract | Following intraperitoneal administration of the non-competitive N-methyl-D-aspartate (NMDA) antagonist dizocilpine (MK-801), levels of the dopamine (DA) metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) increased in mouse striatum and limbic forebrain. When dizocilpine was given to animals treated with NSD 1015, an inhibitor of 3,4-dihydroxyphenylalanine (DOPA) decarboxylase and monoamine oxidase, there was an increase in levels of DOPA and 3-methoxytyramine (3-MT). These findings suggest that dizocilpine stimulates DA synthesis and release in mouse brain. Following dizocilpine treatment a clear-cut increase in spontaneous locomotor activity was observed, probably partly due to enhanced dopaminergic tone. The competitive NMDA antagonist D-CPPene produced locomotor stimulation as well, but in contrast to following dizocilpine treatment levels of 3-MT decreased. Thus the stimulation of locomotor activity following D-CPPene treatment does not seem to be mediated through activation of central dopaminergic systems. However, haloperidol pretreatment antagonized this locomotor response, indicating that the dopaminergic system plays a permissive role in this context. |
| Starting Page | 117 |
| Ending Page | 129 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/BF01244704 |
| PubMed reference number | 1930876 |
| Journal | Medline |
| Volume Number | 85 |
| Alternate Webpage(s) | https://page-one.live.cf.public.springer.com/pdf/preview/10.1007/BF01244704 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/BF01244704 |
| Alternate Webpage(s) | https://doi.org/10.1007/BF01244704 |
| Journal | Journal of Neural Transmission / General Section JNT |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |