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| Author(s): |
Daniel Ninello Polesel
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) |
| Defense date: | 2012-12-13 |
| Examining board members: |
Marina Franco Maggi Tavares;
Tathiana Aparecida Fernandes de Alvarenga;
Maurício Yonamine
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| Advisor: | Marina Franco Maggi Tavares |
| Abstract | |
The increase on abusive use and seizures of tablets containing 1-(3-chlorophenyl)piperazine (mCPP) have been seen in Europe since the late 20th century. The mCPP promotes effects similar to methylenedioxymethamphetamine (ecstasy) and emerged as a less neurotoxic alternative. The main effects described by users are sense of well-being, euphoria and empathy. The adverse events observed in acute poisoning cases are anxiety, confusion, insomnia, panic attacks, convulsive states, tachycardia and even death. mCPP is often associated with sleep deprivation by their users and on night scenery (parties and discos). In addition, the drug causes insomnia on user, further aggravating the consequences to the individual sleep. REM sleep in humans or referred as to paradoxical sleep, in animals, is an important sleep phase, because it was the phase which promote the return of behavioral and biochemical homeostasis. The aim of this study was to evaluate the behavioral effects of the isomers of chlorophenylpiperazine and develop an analytical method to identify and quantify the mCPP in plasma samples from mice subjected to paradoxical sleep deprivation (PSD) for 24 and 48 hours. The analytical tool used to identify and quantify the mCPP was liquid chromatography coupled to mass spectrometry (LC-MS/MS). The behavioral analysis of anxiety and locomotor activity of mice used the Elevated Plus Maze and Open Field tests, respectively. The results showed that association of PSD with the use of mCPP led to behavioral changes that back to the homeostatic level only after 48 hours of rebound sleep. Furthermore, there was a significant increase in circulating concentration of mCPP in animals paradoxical sleep deprived for 48 hours compared to control group. Finally, it is concluded that paradoxical sleep deprivation associated with administration of mCPP produced severe behavioral effects in mice and concentration of drug found in plasma was greater in animals submitted to paradoxical sleep deprivation than control group. (AU) | |
| FAPESP's process: | 10/13918-8 - Development of analytical methodology for simultaneous determination of meta-chlorophenylpiperazine (m-CPP) and its isomers in biological fluids by capillary electrophoresis (CE-UV and CE-MS). |
| Grantee: | Daniel Ninello Polesel |
| Support Opportunities: | Scholarships in Brazil - Master |