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Innocuous pressure sensation requires A-type afferents but not functional ΡΙΕΖΟ2 channels in humans
- Case, L. K. (author)
-
- Liljencrantz, Jaquette (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för anestesiologi och intensivvård,Institute of Clinical Sciences, Department of Anesthesiology and Intensive care
- Madian, N. (author)
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- Necaise, A. (author)
- Tubbs, J. (author)
- McCall, M. (author)
- Bradson, M. L. (author)
- Szczot, M. (author)
- Pitcher, M. H. (author)
- Ghitani, N. (author)
- Frangos, E. (author)
- Cole, J. (author)
- Bharucha-Goebel, D. (author)
- Saade, D. (author)
- Ogata, T. (author)
- Donkervoort, S. (author)
- Foley, A. R. (author)
- Bonnemann, C. G. (author)
- Olausson, H. (author)
- Bushnell, M. C. (author)
- Chesler, A. T. (author)
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- (creator_code:org_t)
- 2021-01-28
- 2021
- English.
- In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 12:1
- Journal article (peer-reviewed)
Abstract
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- The sensation of pressure allows us to feel sustained compression and body strain. While our understanding of cutaneous touch has grown significantly in recent years, how deep tissue sensations are detected remains less clear. Here, we use quantitative sensory evaluations of patients with rare sensory disorders, as well as nerve blocks in typical individuals, to probe the neural and genetic mechanisms for detecting non-painful pressure. We show that the ability to perceive innocuous pressures is lost when myelinated fiber function is experimentally blocked in healthy volunteers and that two patients lacking A beta fibers are strikingly unable to feel innocuous pressures at all. We find that seven individuals with inherited mutations in the mechanoreceptor PIEZO2 gene, who have major deficits in touch and proprioception, are nearly as good at sensing pressure as healthy control subjects. Together, these data support a role for A beta afferents in pressure sensation and suggest the existence of an unknown molecular pathway for its detection. The mechanisms underlying deep pressure sensing are not fully understood. Here the authors demonstrate that while two individuals lacking A beta fibers demonstrate impaired deep pressure sensing, seven individuals with PIEZO2 loss of function mutations display normal deep pressure responses.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Physiology (hsv//eng)
Keyword
- Science & Technology - Other Topics
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- ref (subject category)
- art (subject category)
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- Case, L. K.
- Liljencrantz, Ja ...
- Madian, N.
- Necaise, A.
- Tubbs, J.
- McCall, M.
- show more...
- Bradson, M. L.
- Szczot, M.
- Pitcher, M. H.
- Ghitani, N.
- Frangos, E.
- Cole, J.
- Bharucha-Goebel, ...
- Saade, D.
- Ogata, T.
- Donkervoort, S.
- Foley, A. R.
- Bonnemann, C. G.
- Olausson, H.
- Bushnell, M. C.
- Chesler, A. T.
- show less...
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- MEDICAL AND HEAL ...
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- University of Gothenburg
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