Pre-incubated cortical brain slices from adult male Sprague Dawley rats when challenged
by exogenous norepinephrine (NE) exhibited a dose-dependent increase in the level of …

Incubation of cerebral cortical slices of rat brain with 3H-adenosine in the presence of
varying concentrations of morphine in vitro resulted in a dose-related increase in 3H-cAMP …

Morphine (10 μM) blocked noradrenaline‐stimulated cyclic AMP production in slices of
cerebral cortex from normal rats but not in slices from rats pretreated with 6 …

In chronically morphinized rats undergoing naloxone induced withdrawal the cerebellar
Cyclic 3′, 5′ adenosine monophosphate (Cyclic AMP) was significantly higher than the …

The effects of cyclic nucleotides and theophylline were assessed in mice rendered tolerant
to and physically dependent on morphine by the pellet implantation procedure. Tolerance …

The changes in extracellular concentrations of noradrenaline (NA) in the prefrontal cortex of
morphine-dependent rats were studied by microdialysis following an acute morphine …

Mice were rendered dependent on morphine by the subcutaneous pellet implantation
technique. After three days, the pellet was removed and six hours later, withdrawal jumping …

The changes in extracellular concentrations of noradrenaline (NA) in the prefrontal cortex of
morphine-dependent rats were studied by microdialysis following an acute morphine …

Diazepam inhibits morphine tolerance and dependence and reverses a decrease in the met-
enkephalin level in brain induced by morphine. In this study, we investigated whether …

Systemic administration of morphine, as well as pethidine and pentazocine, increased
plasma cyclic AMP levels in male mice. Intracerebroventricular administration of morphine …