OBJECTIVES Evaluation of the Sophora alopecuroides var. alopecuroides seed effects on morphine withdrawal syndrome in mice and determination of the alkaloid composition of the seed total extract. MATERIALS AND METHODS The effects of the seed total extract, alkaloid fraction and major compound matrine on the mice morphine withdrawal syndrome were compared to saline and methadone. Mice were mad...

Introduction: Previous studies have suggested that plants Avena sativa, Hypericum perforatum, Passiflora incarnata and Lavandula officinalis can affect nervous system and reduce neural excitability and pain. The aim of this study was to evaluate the effect of a mixture of these four plant’s alcoholic extract on morphine withdrawal symptoms. Methods: Experiments were performed on four animal...

we have previously evaluated the effect of nimodipine, l-type calcium channel blocker, on memory loss during spontaneous morphine withdrawal. in the present study the effect of nimodipine on memory loss in naloxone-induced morphine withdrawal mice was investigated. mice were made dependent by increasing doses of morphine for three days. object recognition task that was used for evaluation of me...

in this study using clonidine (a mixed ?2 /i1 receptors agonist), tizanidine (pure ?2-receptor agonist), rilmenidine (i1 receptor agonist) and yohimbine (?2-receptor antagonist), we tried to clarify the role of imidazoline and ?2-receptors in morphine withdrawal syndrome. morphine-dependence was induced by administration of increasing doses of morphine in mice. after the last administration of ...

This study examined whether activation of extracellular signal-regulated kinase (ERK) contributes to the increased open-arm time observed in the elevated plus maze (EPM) during opioid withdrawal. We applied SL327, a selective ERK kinase (MEK) inhibitor, to specific limbic areas and examined the effect on EPM behaviors of controls and during naloxone-precipitated morphine withdrawal. We next con...

objective: addiction, especially morphine dependence is a prevalence and incurable disease. with regard to low ability of new chemical drugs in treatment of addicted ones and with respect to herbal medicine recommendation due to lower side effects and cheap production. this study experimentally examined the effect of p.harmala on morphine withdrawal syndrome. materials and methods: animals wer...

Background and Objective: Datura stramonium L. is a medicinal herb from the family of Solanaceae. It has been used in herbal remedies for promoting health and treating several diseases. The current study was set up to compare the effects of Datura stramonium L. extract on the naloxone-precipitated opiate-withdrawal in mice. Materials and Methods: Male BALB/c mice (30–35 g, n = 40) were arbitra...

The effect of withdrawal from chronic morphine or amphetamine treatment on dopamine (DA) neurotransmission in the ventral-medial striatum was studied by use of in vivo microdialysis. There was no effect of 24 h of amphetamine withdrawal on the basal concentration of DA in the ventral-medial striatum. Spontaneous morphine withdrawal (24 h) was associated with a significant decrease in the basal ...