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Cited by 254

The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.

The Itch-Producing Agents Histamine and Cowhage Activate Separate Populations of Primate Spinothalamic Tract Neurons

Open access
Davidson, Steve, Zhang, Xijing, Yoon, Chul H., Khasabov, Sergey G., Simone, Donald A., Giesler, Glenn J.·2007·The Journal of Neuroscience

Abstract

Itch is an everyday sensation, but when associated with disease or infection it can be chronic and debilitating. Several forms of itch can be blocked using antihistamines, but others cannot and these constitute an important clinical problem. Little information is available on the mechanisms underlying itch that is produced by nonhistaminergic mechanisms. We examined the responses of spinothalamic tract neurons to histaminergic and, for the first time, nonhistaminergic forms of itch stimuli. Fifty-seven primate spinothalamic tract (STT) neurons were identified using antidromic activation techniques and examined for their responses to histamine and cowhage, the nonhistaminergic itch-producing spicules covering the pod of the legume Mucuna pruriens . Each examined neuron had a receptive field on the hairy skin of the hindlimb and responded to noxious mechanical stimulation. STT neurons were tested with both pruritogens applied in a random order and we found 12 that responded to histamine and seven to cowhage. Each pruritogen-responsive STT neuron was activated by the chemical algogen capsaicin and two-thirds responded to noxious heat stimuli, demonstrating that these neurons convey chemical, thermal, and mechanical nociceptive information as well. Histamine or cowhage responsive STT neurons were found in both the marginal zone and the deep dorsal horn and were classified as high threshold and wide dynamic range. Unexpectedly, histamine and cowhage never activated the same cell. Our results demonstrate that the spinothalamic tract contains mutually exclusive populations of neurons responsive to histamine or the nonhistaminergic itch-producing agent cowhage.

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Metadata

Authors
Davidson, S., Zhang, X., Yoon, C. H., Khasabov, S. G., Simone, D. A., & Giesler, G. J.
Venue
The Journal of Neuroscience
Published
2007-09-12
Volume
27
Issue
37
Pages
10007-10014
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2076606084
Cited by
254
References
35
FWCI
10.09
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: The Itch-Producing Agents Histamine and Cowhage Activate Separate Populations of Primate Spinothalamic Tract Neurons. https://app.cochat.ai/papers/10.1523/jneurosci.2862-07.2007
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Davidson, S., Zhang, X., Yoon, C. H., Khasabov, S. G., Simone, D. A., & Giesler, G. J. (2007). The Itch-Producing Agents Histamine and Cowhage Activate Separate Populations of Primate Spinothalamic Tract Neurons. The Journal of Neuroscience. https://doi.org/10.1523/jneurosci.2862-07.2007

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