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Titolo: Stress-induced insomnia: opioid-dopamine interactions
Data di pubblicazione: 1987
Abstract: REM sleep deprivation induced by means of the platform technique (72 h) was followed by a period of latency to sleep characterized by a marked excitement in rats. The administration of naloxone at the end of the REM deprivation period reduced this latency to sleep while morphine, beta-endorphin and DADLE prolonged it. The dopamine D1 receptor antagonist SCH 23390 was extremely potent (0.003 mg/kg) to reduce the latency to sleep and the excitement while the D1 agonist SKF 38393 induced an opposite effect. The dopamine D2 receptor antagonist L-sulpiride was inactive up to a dose of 25 mg/kg. These data suggest that hyperactivity of the opioid and dopamine systems (specifically mediated through D1 receptors) is involved in such behaviour.
Tipologia:1.1 Articolo in rivista

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