International Clinical Psychopharmacology
1998
Gilberto Gerra, Amir Zaimovic, Giuliano Giucastro et al.
145 citations
(+/-)3,4-Methylene-dioxymethamphetamine (MDMA, or 'Ecstasy') effects on serotonin system function and behaviour in humans are unclear. Fifteen MDMA users, who did not have other drug dependencies or alcohol abuse, and had not used other drugs for prolonged periods, and 15 control individuals were included in a study to assess the biological and psychological changes after chronic use of MDMA....
European Addiction Research
1998
Peter Schuster, Roselind Lieb, Christina Maria Lamertz et al.
96 citations
This report presents findings of a community survey of 3,021 adolescents and young adults aged 14–24 years in Munich, Germany, carried out to determine the prevalence of use and abuse of and dependence on ecstasy, amphetamines and hallucinogens. The response rate was 71%. <b>Results:</b> (1) In 1995, 4% of the male and 2.3% of the female respondents aged 14–24 reported the use of ecstasy....
Pharmacology, Biochemistry, and Behavior
December 1997
J L Wiley, K M Golden, W J Ryan et al.
In previous research arachidonylethanolamide (anandamide) has been shown to produce behavioral effects in mice characteristic of psychoactive cannabinoids, including antinociception, catalepsy, hypothermia, and hypomotility. However, differences have also been found between anandamide and delta9-tetrahydrocannabinol (delta9-THC), with anandamide having lower potency, a more rapid onset, and...
Drug and Alcohol Dependence
November 25, 1997
James P Zacny, A M Cho, A Y Toledano et al.
The purpose of this study was to characterize the reinforcing, subjective, and psychomotor effects of nitrous oxide (N2O) in healthy volunteers who were given different amounts of information regarding the drugs they were being administered in the experiment. A choice procedure was used in which subjects first sampled a placebo and a given concentration of N2O and then chose between the two....
Journal of Neuroscience
November 15, 1997
Elizabeth O’hearn, Mark E. Molliver
158 citations
Ibogaine, an indole alkaloid that causes hallucinations, tremor, and ataxia, produces cerebellar neurotoxicity in rats, manifested by degeneration of Purkinje cells aligned in narrow parasagittal bands that are coextensive with activated glial cells. Harmaline, a closely related alkaloid that excites inferior olivary neurons, causes the same pattern of Purkinje cell degeneration, providing a...
Anesthesiology
November 1, 1997
J L Galinkin, Debra J Janiszewski, C J Young et al.
Sevoflurane is a volatile general anesthetic that differs in chemical nature from the gaseous anesthetic nitrous oxide. In a controlled laboratory setting, the authors characterized the subjective, psychomotor, and analgesic effects of sevoflurane and nitrous oxide at two equal minimum alveolar subanesthetic concentrations. A crossover design was used to test the effects of two end-tidal...
Brain Research
October 17, 1997
Hemendra N. Bhargava, Ying-Jun Cao
10 citations
The effects of noribogaine, a metabolite of ibogaine, on the development of tolerance to the antinociception action of morphine was determined in male Swiss-Webster mice. Ibogaine is an alkaloid isolated from the bark of the African shrub, Tabernanthe iboga. Morphine tolerance in mice was developed by two different methods. Mice were rendered tolerant to morphine either by subcutaneous...
European Journal of Pharmacology
October 8, 1997
Isabelle M Maisonneuve, K E Visker, G L Mann et al.
20 citations
The purpose of this study was to clarify the effects of iboga agents on cocaine-induced hyperactivity. Both inhibition and enhancement of cocaine-induced activity by ibogaine have been reported. In the present study, rats were treated with either ibogaine (40 mg/kg, i.p.), noribogaine (40 mg/kg, i.p.), 18-methoxycoronaridine (40 mg/kg, i.p.), or saline, 1 or 19 h prior to the administration of...
Pharmacology, Biochemistry, and Behavior
October 1, 1997
Amir H Rezvani, David H Overstreet, Y Yang et al.
78 citations
We previously reported that single administration of ibogaine, an indol alkaloid with antiaddictive properties, dose dependently reduced alcohol intake in three strains of alcohol-preferring rats. The present study examined the effect of different doses of a newly developed nontoxic ibogaine analogue, 18-methoxycoronaridine (18-MC), on alcohol intake. Selectively bred alcohol-preferring rats...
Neuropsychopharmacology
September 1997
H K Kramer, Jose C Poblete, Efrain C. Azmitia
This report further characterizes the intermediate metabolic effects of the psychotropic amphetamine derivative, 3,4-methylenedioxymethamphetamine (MDMA or "ecstasy"), on the activity of second messenger-dependent kinases. Previous work has demonstrated that two injections of MDMA (20 mg/kg) elicits a prolonged translocation of the calcium and phospholipid-dependent enzyme, protein kinase C...