Abstract
The microdialysis technique has proved to be a powerful neuropharmacological tool for the measurement of extracellular levels of neurotransmitters in brains of freely moving animals. However, care in its application is essential if reliable results are to be obtained. More recent developments have made it possible to detect the release of highly reactive oxygen species (hROS) in the same systems as those used for determining amino acid neurotransmitter release. This chapter is intended to help in obtaining reliable and reproducible results by describing practical aspects of in vivo microdialysis in the rat, as applied to the determination of hROS and amino acid release in the same experiment. The presentation and validation of the results obtained are also discussed.
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Abbreviations
- aCSF:
-
Artificial cerebrospinal fluid
- DNQX:
-
6,7-Dinitroquinoxaline-2,3-dione
- hROS:
-
Highly reactive oxygen species
- KA:
-
Kainate
- OH-TA:
-
2-Hydroxyterephthalate
- OPA:
-
o-Phthalaldehyde
- TA2− :
-
Terephthalic acid, terephthalate
- RT:
-
Retention time
- TTX:
-
Tetrodotoxin
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Acknowledgements
We would like to thank Ente Cassa di Risparmio di Firenze (Firenze, Italy) for financial support, ERAB (Brussels, Belgium), and the EU COST action D34 and CM1103 for supporting our international cooperation.
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Appendix
Appendix
1.1 Sources of Materials
Most chemicals can be obtained from more than one supplier and should be of the highest purity available. Only those sources not given in the text are listed here.
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Acrylic cement. Self-curing acrylic cement was purchased from Kerr Italia (Salerno, Italy).
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Chloral hydrate, glacial acetic acid, methanol and potassium acetate, and all salts used to prepare aCSF were from Merck (Milano Italy).
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Cresyl fast Violet, DNQX, KA, 2-mercaptoethanol, ortho-bromoterephthalic acid, o-phthalaldehyde, terephthalic acid, and TTX were from Sigma Aldrich (Milano, Italy).
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Colivicchi, M.A. et al. (2013). Monitoring Extracellular Amino Acid Neurotransmitters and hROS by In Vivo Microdialysis in Rats: A Practical Approach. In: Di Giovanni, G., Di Matteo, V. (eds) Microdialysis Techniques in Neuroscience. Neuromethods, vol 75. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-173-8_11
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DOI: https://doi.org/10.1007/978-1-62703-173-8_11
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Publisher Name: Humana Press, Totowa, NJ
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