In Vivo Study of Monoamine Oxidases Using Multisite Intracerebral Microdialysis.

Philippe De Deurwaerdère, Nouhad Samb, Hasna El Boukhari, Rémi Corne, Abdeslam Chagraoui, Giuseppe Di Giovanni

Methods in molecular biology (Clifton, N.J.) 2023

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The activity of monoamine oxidases (MAOs) in the brain is often associated with neurodegenerative diseases. The study of MAOs in vivo or ex vivo is generally performed using MAO inhibitors and rarely using substrates. We present a pharmacological approach using intracerebral microdialysis to study the activity of MAO in the striatum and the prefrontal cortex of rats. It consists of applying ascending concentrations of 3-methoxytyramine (3-MT) as a substrate via the probes and measuring the indirect product homovanillic acid generated by MAO activity. We present herein the methodologies comprising our in-house stereotaxic procedures in rats, the microdialysis perfusion system and the substrate application, and the neurochemical analysis of the samples. © 2023. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.

Citation

Philippe De Deurwaerdère, Nouhad Samb, Hasna El Boukhari, Rémi Corne, Abdeslam Chagraoui, Giuseppe Di Giovanni. In Vivo Study of Monoamine Oxidases Using Multisite Intracerebral Microdialysis. Methods in molecular biology (Clifton, N.J.). 2023;2558:183-195