RATIONALE AND OBJECTIVES: Behavioral, neurochemical and pharmaco-EEG profiles of a new synthetic drug 4-bromo-2,5-dimethoxyphenethylamine (2C-B) in rats were examined. MATERIALS AND METHODS: Locomotor effects, prepulse inhibition (PPI) of acoustic startle reaction (ASR), dopamine and its metabolite levels in nucleus accumbens (NAc), EEG power spectra and coherence in freely moving rats were analysed. Amphetamine was used as a reference compound. RESULTS: 2C-B had a biphasic effect on locomotion with initial inhibitory followed by excitatory effect; amphetamine induced only hyperlocomotion. Both drugs induced deficits in the PPI; however they had opposite effects on ASR. 2C-B increased dopamine but decreased 3,4-dihydroxyphenylacetic acid (DOPAC) in the NAc. Low doses of 2C-B induced a decrease in EEG power spectra and coherence. On the contrary, high dose of 2C-B 50 mg/kg had a temporally biphasic effect with an initial decrease followed by an increase in EEG power; decrease as well as increase in EEG coherence was observed. Amphetamine mainly induced an increase in EEG power and coherence in theta and alpha bands. Increases in the theta and alpha power and coherence in 2C-B and amphetamine were temporally linked to an increase in locomotor activity and DA levels in NAc. CONCLUSIONS: 2C-B is a centrally active compound similar to other hallucinogens, entactogens and stimulants. Increased dopamine and decreased DOPAC in the NAc may reflect its psychotomimetic and addictive potential and monoaminoxidase inhibition. Alterations in brain functional connectivity reflected the behavioral and neurochemical changes produced by the drug; a correlation between EEG changes and locomotor behavior was observed.

• MeSH
• amfetamin farmakologie   MeSH
• chování zvířat účinky léků   MeSH
• dimethoxyfenylethylamin aplikace a dávkování   analogy a deriváty   farmakologie   MeSH
• dopamin metabolismus   MeSH
• elektroencefalografie MeSH
• halucinogeny aplikace a dávkování   farmakologie   MeSH
• krysa rodu Rattus MeSH
• kyselina 3,4-dihydroxyfenyloctová metabolismus   MeSH
• nucleus accumbens účinky léků   metabolismus   MeSH
• pohybová aktivita účinky léků   MeSH
• potkani Wistar MeSH
• úleková reakce účinky léků   MeSH
• vztah mezi dávkou a účinkem léčiva MeSH
• zvířata MeSH
• Check Tag
• krysa rodu Rattus MeSH
• mužské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• srovnávací studie MeSH
• Názvy látek
• 2-(4-bromo-2,5-dimethoxyphenyl)ethylamine MeSH Prohlížeč
• amfetamin MeSH
• dimethoxyfenylethylamin MeSH
• dopamin MeSH
• halucinogeny MeSH
• kyselina 3,4-dihydroxyfenyloctová MeSH