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Hipokretyny (oreksyny) – rola w uzależnieniach od substancji psychoaktywnych

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Author(s): Jolanta B. Zawilska | Kaja Biegańska | Małgorzata Milanowska | Agata Woldan-Tambor

Journal: Neuropsychiatria i Neuropsychologia
ISSN 1896-6764

Volume: 5;
Issue: 1;
Start page: 1;
Date: 2010;
Original page

Keywords: hypocretins | orexins | addiction | relapse | morphine | amphetamine | cocaine | nicotine | alcohol

ABSTRACT
Hypocretins (orexins) are recently discovered neuropeptidessynthesized by neurons in the lateral hypothalamusthat have been implicated in a variety of behav -iors, e.g. food-seeking and feeding, reaction to stress,arousal and sleep. Disturbances in the central hypocretinneurotransmission are believed to underlie narcolepsy.It has also been postulated that hypocretins playan important role in the regulation of HPA axis, energyhomeostasis, acquisition and learning of reward system-stimulating signals. In this review we discuss anatomical,neurophysiological, pharmacological andbehavioral data indicating an involvement of hypocretinsin reward-seeking and addiction to psychoactivedrugs, including relapse to drug-seeking behavior afterperiods of abstinence.
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Tango Rapperswil
Tango Rapperswil