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Cited by 274

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Separate Peripheral Pathways for Pruritus in Man

Open access
Namer, Barbara, Carr, Richard, Johanek, Lisa M., Schmelz, Martin, Handwerker, Hermann O., Ringkamp, Matthias·2008·Journal of Neurophysiology

Abstract

Recent findings suggest that itch produced by intradermal insertion of cowhage spicules in human is histamine independent. Neuronal mechanisms underlying nonhistaminergic itch are poorly understood. To investigate which nerve fibers mediate cowhage induced itch in man, action potentials were recorded from cutaneous C-fibers of the peroneal nerve in healthy volunteers using microneurography. Mechano-responsive and -insensitive C-nociceptors were tested for their responsiveness to cowhage spicules, histamine, and capsaicin. Cowhage spicules induced itching and activated all tested mechano-responsive C-units (24/24, but no mechano-insensitive C-fibers (0/17). Histamine also induced itch, but in contrast to cowhage, it caused lasting activation only in mechano-insensitive units (8/12). In mechano-responsive C-units, histamine caused no or only short and weak responses unrelated to the time course of itching. Capsaicin injections activated four of six mechano-responsive fibers and three of four mechano-insensitive C-fibers. Cowhage and histamine activate distinctly different nonoverlapping populations of C-fibers while inducing similar sensations of itch. We hypothesize that cowhage activates a pathway for itch that originates peripherally from superficial mechano-responsive (polymodal) C-fibers and perhaps other afferent units. It is distinct from the pathway for histamine-mediated pruritus and does not involve the histamine-sensitive mechano-insensitive fibers.

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Metadata

Authors
Namer, B., Carr, R., Johanek, L. M., Schmelz, M., Handwerker, H. O., & Ringkamp, M.
Venue
Journal of Neurophysiology
Published
2008-10
Volume
100
Issue
4
Pages
2062-2069
ISSN
  • 0022-3077 (ISSN-L)
  • 1522-1598
OpenAlex
W1988408110
Cited by
274
References
42
FWCI
12.26
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Separate Peripheral Pathways for Pruritus in Man. https://app.cochat.ai/papers/10.1152/jn.90482.2008
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Namer, B., Carr, R., Johanek, L. M., Schmelz, M., Handwerker, H. O., & Ringkamp, M. (2008). Separate Peripheral Pathways for Pruritus in Man. Journal of Neurophysiology. https://doi.org/10.1152/jn.90482.2008

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

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