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Unresponsiveness to Cannabinoids and Reduced Addictive Effects of Opiates in CB 1 Receptor Knockout Mice

Ledent, Catherine, Valverde, Olga, Cossu, Gregorio, Petitet, François, Aubert, Jean-François, Beslot, Françoise, Böhme, Georg A., Imperato, Assunta, Pedrazzini, Thierry, Roques, Bernard P., Vassart, Gilbert, Fratta, Walter, Parmentier, Marc·1999·Science

Abstract

The function of the central cannabinoid receptor (CB 1 ) was investigated by invalidating its gene. Mutant mice did not respond to cannabinoid drugs, demonstrating the exclusive role of the CB 1 receptor in mediating analgesia, reinforcement, hypothermia, hypolocomotion, and hypotension. The acute effects of opiates were unaffected, but the reinforcing properties of morphine and the severity of the withdrawal syndrome were strongly reduced. These observations suggest that the CB 1 receptor is involved in the motivational properties of opiates and in the development of physical dependence and extend the concept of an interconnected role of CB 1 and opiate receptors in the brain areas mediating addictive behavior.

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Research works printed but not linked: 20

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Metadata

Authors
Ledent, C., Valverde, O., Cossu, G., Petitet, F., Aubert, J.-F., Beslot, F., Böhme, G. A., Imperato, A., Pedrazzini, T., Roques, B. P., Vassart, G., Fratta, W., & Parmentier, M.
Venue
Science
Published
1999-01-15
Volume
283
Issue
5400
Pages
401-404
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2171584675
Cited by
3,614
References
4
FWCI
119.55
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Unresponsiveness to Cannabinoids and Reduced Addictive Effects of Opiates in CB 1 Receptor Knockout Mice. https://app.cochat.ai/papers/10.1126/science.283.5400.401
The paper
Ledent, C., Valverde, O., Cossu, G., Petitet, F., Aubert, J.-F., Beslot, F., Böhme, G. A., Imperato, A., Pedrazzini, T., Roques, B. P., Vassart, G., Fratta, W., & Parmentier, M. (1999). Unresponsiveness to Cannabinoids and Reduced Addictive Effects of Opiates in CB 1 Receptor Knockout Mice. Science. https://doi.org/10.1126/science.283.5400.401

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.