Cannabinoids and Pain

Cannabinoids have been used to treat pain for many centuries. However, only during the past several decades have rigorous scientific methods been applied to understand the mechanisms of cannabinoid action. Cannabinoid receptors were discovered in the late 1980s and have been found to mediate the eff...

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Main Authors: J Michael Walker, Nicole M Strangman, Susan M Huang
Format: Article
Language:English
Published: Wiley 2001-01-01
Series:Pain Research and Management
Online Access:http://dx.doi.org/10.1155/2001/413641
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author J Michael Walker
Nicole M Strangman
Susan M Huang
author_facet J Michael Walker
Nicole M Strangman
Susan M Huang
author_sort J Michael Walker
collection DOAJ
description Cannabinoids have been used to treat pain for many centuries. However, only during the past several decades have rigorous scientific methods been applied to understand the mechanisms of cannabinoid action. Cannabinoid receptors were discovered in the late 1980s and have been found to mediate the effects of cannabinoids on the nervous system. Several endocannabinoids were subsequently identified. Many studies of cannabinoid analgesia in animals during the past century showed that cannabinoids block all types of pain studied. These effects were found to be due to the suppression of spinal and thalamic nociceptive neurons, independent of any actions on the motor systems. Spinal, supraspinal and peripheral sites of cannabinoid analgesia have been identified. Endocannabinoids are released upon electrical stimulation of the periaqueductal gray, and in response to inflammation in the extremities. These observations and others thus suggest that a natural function of cannabinoid receptors and their endogenous ligands is to regulate pain sensitivity. The therapeutic potential of cannabinoids remains an important topic for future investigations, with previous work suggesting utility in clinical studies of cancer and surgical pain. New modes of delivery and/or new compounds lacking the psychotropic properties of the standard cannabinoid ligands offer promise for cannabinoid therapeutics for pain.
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spelling doaj-art-400422b9d794432db176ec5c44e9d9412025-08-20T03:55:36ZengWileyPain Research and Management1203-67652001-01-0162747910.1155/2001/413641Cannabinoids and PainJ Michael Walker0Nicole M Strangman1Susan M Huang2Departments of Psychology and Neuroscience, Brown University, Providence, Rhode Island, USADepartments of Psychology and Neuroscience, Brown University, Providence, Rhode Island, USADepartments of Psychology and Neuroscience, Brown University, Providence, Rhode Island, USACannabinoids have been used to treat pain for many centuries. However, only during the past several decades have rigorous scientific methods been applied to understand the mechanisms of cannabinoid action. Cannabinoid receptors were discovered in the late 1980s and have been found to mediate the effects of cannabinoids on the nervous system. Several endocannabinoids were subsequently identified. Many studies of cannabinoid analgesia in animals during the past century showed that cannabinoids block all types of pain studied. These effects were found to be due to the suppression of spinal and thalamic nociceptive neurons, independent of any actions on the motor systems. Spinal, supraspinal and peripheral sites of cannabinoid analgesia have been identified. Endocannabinoids are released upon electrical stimulation of the periaqueductal gray, and in response to inflammation in the extremities. These observations and others thus suggest that a natural function of cannabinoid receptors and their endogenous ligands is to regulate pain sensitivity. The therapeutic potential of cannabinoids remains an important topic for future investigations, with previous work suggesting utility in clinical studies of cancer and surgical pain. New modes of delivery and/or new compounds lacking the psychotropic properties of the standard cannabinoid ligands offer promise for cannabinoid therapeutics for pain.http://dx.doi.org/10.1155/2001/413641
spellingShingle J Michael Walker
Nicole M Strangman
Susan M Huang
Cannabinoids and Pain
Pain Research and Management
title Cannabinoids and Pain
title_full Cannabinoids and Pain
title_fullStr Cannabinoids and Pain
title_full_unstemmed Cannabinoids and Pain
title_short Cannabinoids and Pain
title_sort cannabinoids and pain
url http://dx.doi.org/10.1155/2001/413641
work_keys_str_mv AT jmichaelwalker cannabinoidsandpain
AT nicolemstrangman cannabinoidsandpain
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