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Current Neuropharmacology

Editor-in-Chief

ISSN (Print): 1570-159X
ISSN (Online): 1875-6190

The Effects of Locus Coeruleus and Norepinephrine in Methamphetamine Toxicity

Author(s): Michela Ferrucci, Filippo S. Giorgi, Alessia Bartalucci, Carla L. Busceti and Francesco Fornai

Volume 11, Issue 1, 2013

Page: [80 - 94] Pages: 15

DOI: 10.2174/1570159X11311010010

Price: $65

Abstract

The activity of locus coeruleus (LC) neurons has been extensively investigated in a variety of behavioural states. In fact this norepinephrine (NE)-containing nucleus modulates many physiological and pathological conditions including the sleep-waking cycle, movement disorders, mood alterations, convulsive seizures, and the effects of drugs such as psychostimulants and opioids. This review focuses on the modulation exerted by central NE pathways on the behavioural and neurotoxic effects produced by the psychostimulant methamphetamine, essentially the modulation of the activity of mesencephalic dopamine (DA) neurons. In fact, although NE in itself mediates some behavioural effects induced by methamphetamine, NE modulation of DA release is pivotal for methamphetamine-induced behavioural states and neurotoxicity. These interactions are discussed on the basis of the state of the art of the functional neuroanatomy of central NE- and DA systems. Emphasis is given to those brain sites possessing a remarkable overlapping of both neurotransmitters.

Keywords: Behaviour, Dopamine, Locus Coeruleus, Methamphetamine, Neurochemistry, Norepinephrine, Substantia Nigra, Drugs of Abuse

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