2021
DOI: 10.1097/j.pain.0000000000002520
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Transient receptor potential ankyrin 1 mediates headache-related cephalic allodynia in a mouse model of relapsing–remitting multiple sclerosis

Abstract: Primary headache conditions are frequently associated with multiple sclerosis (MS), but the mechanism that triggers or worsens headaches in patients with MS is poorly understood. We previously showed that the proalgesic transient receptor potential ankyrin 1 (TRPA1) mediates hind paw mechanical and cold allodynia in a relapsing-remitting experimental autoimmune encephalomyelitis (RR-EAE) model in mice. Here, we investigated the development of periorbital mechanical allodynia (PMA) in RR-EAE, a hallmark of head… Show more

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Cited by 3 publications
(2 citation statements)
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References 77 publications
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“…In even more severe cases, there is complete hind and partial front limb paralysis, a severe condition where euthanasia is strongly recommended. Although several other behavioral domains are affected in the diverse EAE models, including the sensory domain [ 14 , 15 , 16 ] and cognition [ 17 , 18 , 19 ], or there is anxiety-like behavior [ 20 , 21 ], it is the motor behavioral deficit that serves as the primary outcome measurement in most of the EAE studies.…”
Section: Preclinical Ms Modelsmentioning
confidence: 99%
“…In even more severe cases, there is complete hind and partial front limb paralysis, a severe condition where euthanasia is strongly recommended. Although several other behavioral domains are affected in the diverse EAE models, including the sensory domain [ 14 , 15 , 16 ] and cognition [ 17 , 18 , 19 ], or there is anxiety-like behavior [ 20 , 21 ], it is the motor behavioral deficit that serves as the primary outcome measurement in most of the EAE studies.…”
Section: Preclinical Ms Modelsmentioning
confidence: 99%
“…Headaches are also frequent in patients with progressive MS (PMS). Enhanced TRPA1 endogenous agonists and NADPH oxidase activity have been detected in the trigeminal ganglia of PMS-EAE and RR-EAE mice, activating TRPA1 in trigeminal nociceptors, thereby inducing periorbital mechanical hyperalgesia (Refs 64, 65). The PMS-EAE model induces depressive and anxiety-like behaviours; however, a selective TRPA1 antagonist (A-967079) reverses these behaviours, suggesting that TRPA1 plays a fundamental role in depression and anxiety-like behaviours (Ref.…”
Section: Trp and Autoimmune Diseasesmentioning
confidence: 99%