Discovering chronic pain treatments: better animal models might help us get there

Only three classes of pain medications have made it into clinical use in the past 60 years despite intensive efforts and the need for nonaddictive pain treatments. One reason for the failure involves the use of animal models that lack mechanistic similarity to human pain conditions, with endpoint me...

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Main Authors: Norman E. Taylor, Luiz Ferrari
Format: Article
Language:English
Published: American Society for Clinical Investigation 2023-03-01
Series:The Journal of Clinical Investigation
Online Access:https://doi.org/10.1172/JCI167814
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author Norman E. Taylor
Luiz Ferrari
author_facet Norman E. Taylor
Luiz Ferrari
author_sort Norman E. Taylor
collection DOAJ
description Only three classes of pain medications have made it into clinical use in the past 60 years despite intensive efforts and the need for nonaddictive pain treatments. One reason for the failure involves the use of animal models that lack mechanistic similarity to human pain conditions, with endpoint measurements that may not reflect the human pain experience. In this issue of the JCI, Ding, Fischer, and co-authors developed the foramen lacerum impingement of trigeminal nerve root (FLIT) model of human trigeminal neuralgia that has improved face, construct, and predictive validities over those of current models. They used the FLIT model to investigate the role that abnormal, hypersynchronous cortical activity contributed to a neuropathic pain state. Unrestrained, synchronous glutamatergic activity in the primary somatosensory cortex upper lip and jaw (S1ULp–S1J) region of the somatosensory cortex drove pain phenotypes. The model establishes a powerful tool to continue investigating the interaction between the peripheral and central nervous systems that leads to chronic pain.
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spelling doaj.art-327ec836503f456b881c292347a502f42023-11-07T16:20:00ZengAmerican Society for Clinical InvestigationThe Journal of Clinical Investigation1558-82382023-03-011335Discovering chronic pain treatments: better animal models might help us get thereNorman E. TaylorLuiz FerrariOnly three classes of pain medications have made it into clinical use in the past 60 years despite intensive efforts and the need for nonaddictive pain treatments. One reason for the failure involves the use of animal models that lack mechanistic similarity to human pain conditions, with endpoint measurements that may not reflect the human pain experience. In this issue of the JCI, Ding, Fischer, and co-authors developed the foramen lacerum impingement of trigeminal nerve root (FLIT) model of human trigeminal neuralgia that has improved face, construct, and predictive validities over those of current models. They used the FLIT model to investigate the role that abnormal, hypersynchronous cortical activity contributed to a neuropathic pain state. Unrestrained, synchronous glutamatergic activity in the primary somatosensory cortex upper lip and jaw (S1ULp–S1J) region of the somatosensory cortex drove pain phenotypes. The model establishes a powerful tool to continue investigating the interaction between the peripheral and central nervous systems that leads to chronic pain.https://doi.org/10.1172/JCI167814
spellingShingle Norman E. Taylor
Luiz Ferrari
Discovering chronic pain treatments: better animal models might help us get there
The Journal of Clinical Investigation
title Discovering chronic pain treatments: better animal models might help us get there
title_full Discovering chronic pain treatments: better animal models might help us get there
title_fullStr Discovering chronic pain treatments: better animal models might help us get there
title_full_unstemmed Discovering chronic pain treatments: better animal models might help us get there
title_short Discovering chronic pain treatments: better animal models might help us get there
title_sort discovering chronic pain treatments better animal models might help us get there
url https://doi.org/10.1172/JCI167814
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