Neurochemical and behavioural interactions between ibogaine and nicotine in the rat.
M E Benwell, P E Holtom, R J Moran, D J Balfour
British Journal of Pharmacology February 1, 1996 DOI: 10.1111/j.1476-5381.1996.tb15253.x (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Experimental study Peer reviewed |
|---|---|
| Population | Freely moving rats |
| Intervention | Ibogaine |
| Dose | 40 mg kg-1, i.p. |
| Duration | 22-hour pretreatment; effects measured for at least 7 days |
| Topics | Ibogaine |
| Citations | 40 |
| Key findings | Ibogaine attenuated nicotine-induced dopamine overflow in the nucleus accumbens but induced long-lasting anxiogenic effects in rats. |
Abstract
1. In vivo brain microdialysis has been employed to investigate the effects of ibogaine on nicotine-induced changes in dopamine overflow in the nucleus accumbens (NAc) of freely moving rats. The effects of the compound on locomotor responses to nicotine and behaviour in the elevated plus-maze were also examined. 2. No changes were observed in the dopamine overflow or the locomotor activity of the animals following the administration of ibogaine (40 mg kg-1, i.p.). However, ibogaine, administered 22 h earlier, significantly (P < 0.01) attenuated the increase in dopamine overflow but not the hyperlocomotion, evoked by nicotine. 3. In the elevated plus-maze test, significant reductions in the open:total runway entries in both saline-treated controls (P < 0.05) and nicotine-treated (P < 0.01) rats were obtained when the animals were tested 22 h after pretreatment with ibogaine (40 mg kg-1, i.p.). The total activity was significantly (P < 0.01) greater in the nicotine-treated rats but this response was not affected by ibogaine pretreatment. 4. Administration of ibogaine was associated with reductions in the tissue levels of 5-hydroxyindoleacetic acid (5-HIAA) in the NAc (P < 0.01) and striatum (P < 0.05) and an increase in the level of this metabolite in the medial prefrontal cortex (mPFC) (P < 0.01) while the levels of dopamine and 5-hydroxytryptamine (5-HT) in the mPFC were reduced (P < 0.05). The DOPAC/dopamine (P < 0.05) and 5-HIAA/5-HT (P < 0.01) ratios were significantly increased in the mPFC for at least 7 days after a single treatment with ibogaine. 5. Ibogaine attenuates the nicotine-induced increases in dopamine overflow in the NAc and may, therefore, inhibit the rewarding effects of this drug. However, the long lasting anxiogenesis induced by ibogaine warrant further investigation before its use could be recommended for smokers.
Comparable studies
Other preclinical and animal studies on ibogaine, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Noncompetitive Functional Inhibition at Diverse, Human Nicotinic Acetylcholine Receptor Subtypes by Bupropion, Phencyclidine, and Ibogaine TE671/RD cells (human muscle-type nAChR) and SH-SY5Y neuroblastoma cells (human... | 1999 | In vitro study | |
| Degeneration of Purkinje cells in parasagittal zones of the cerebellar vermis after treatment with ibogaine or harmaline. Ibogaine- or harmaline-treated rats | 1993 | Experimental animal study | |
| Effects and aftereffects of ibogaine on morphine self-administration in rats. Rats | 1991 | Preclinical experimental study | |
| Effects of iboga alkaloids on morphine and cocaine self-administration in rats: relationship to tremorigenic effects and to effects on dopamine release in nucleus accumbens and striatum. Rats | 1994 | Experimental study | |
| Glial Cell Line-Derived Neurotrophic Factor Mediates the Desirable Actions of the Anti-Addiction Drug Ibogaine against Alcohol Consumption Rats | 2005 | Experimental study |
Citations in the library
Cited by 25
- Clinical applications of hallucinogens: A review. Experimental and Clinical Psychopharmacology August 1, 2016
- The ibogaine medical subculture. Journal of Ethnopharmacology January 4, 2008
- Unique and potent effects of acute ibogaine on zebrafish: the developing utility of novel aquatic models for hallucinogenic drug research. Behavioural Brain Research 2013
- Anti-addictive actions of an iboga alkaloid congener: a novel mechanism for a novel treatment. Pharmacology, Biochemistry, and Behavior June 1, 2003
- Mechanisms of Antiaddictive Actions of Ibogainea. Annals of the New York Academy of Sciences May 1, 1998
and 20 more in the library
Cites 8
- Degeneration of Purkinje cells in parasagittal zones of the cerebellar vermis after treatment with ibogaine or harmaline. Neuroscience July 1, 1993
- Effects and aftereffects of ibogaine on morphine self-administration in rats. European Journal of Pharmacology April 3, 1991
- Inhibitory effects of ibogaine on cocaine self-administration in rats. European Journal of Pharmacology September 14, 1993
- Interactions between ibogaine, a potential anti-addictive agent, and morphine: an in vivo microdialysis study. European Journal of Pharmacology June 18, 1991
- Effects of ibogaine on acute signs of morphine withdrawal in rats: independence from tremor. Neuropharmacology May 1, 1992
and 3 more in the library