Evidence map›Paper›PMID 27030718›Full record

ArticleMolecular pain2016

Epidural optogenetics for controlled analgesia.

Robert P Bonin, Feng Wang, Mireille Desrochers-Couture, Alicja Ga Secka, Marie-Eve Boulanger, Daniel C Côté, Yves De Koninck

Abstract read
In one paragraph

Article in Molecular pain, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Mechanisms Underlying Bone and Joint Pain.Current osteoporosis reports · 2018
    Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Robert P BoninInstitut Universitaire en santé mentale de Québec, Québec, Canada.
Feng WangInstitut Universitaire en santé mentale de Québec, Québec, Canada.
Mireille Desrochers-CoutureInstitut Universitaire en santé mentale de Québec, Québec, Canada.
Alicja Ga SeckaDepartment of Physics, Université Laval, Québec, Canada.
Marie-Eve BoulangerInstitut Universitaire en santé mentale de Québec, Québec, Canada.
Daniel C CôtéDepartment of Physics, Université Laval, Québec, Canada.
Yves De KoninckInstitut Universitaire en santé mentale de Québec, Québec, Canada Department of Psychiatry and Neuroscience, Université Laval, Québec, Canada yves.dekoninck@neuro.ulaval.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOptogenetic tools enable cell selective and temporally precise control of neuronal activity; yet, difficulties in delivering sufficient light to the spinal cord of freely behaving animals have hampered the use of spinal optogenetic approaches to produce analgesia. We describe an epidural optic fiber designed for chronic spinal optogenetics that enables the precise delivery of light at multiple wavelengths to the spinal cord dorsal horn and sensory afferents.

resultsThe epidural delivery of light enabled the optogenetic modulation of nociceptive processes at the spinal level. The acute and repeated activation of channelrhodopsin-2 expressing nociceptive afferents produced robust nocifensive behavior and mechanical sensitization in freely behaving mice, respectively. The optogenetic inhibition of GABAergic interneurons in the spinal cord dorsal horn through the activation of archaerhodopsin also produced a transient, but selective induction of mechanical hypersensitivity. Finally, we demonstrate the capacity of optogenetics to produce analgesia in freely behaving mice through the inhibition of nociceptive afferents via archaerhodopsin.

conclusionEpidural optogenetics provides a robust and powerful solution for activation of both excitatory and inhibitory opsins in sensory processing pathways. Our results demonstrate the potential of spinal optogenetics to modulate sensory behavior and produce analgesia in freely behaving animals.

Indexed as

Analgesia, EpiduralAfferent PathwaysAnimalsMaleMice, Inbred C57BLNociceptionOpsinsOptical FibersOptogeneticsSensory Receptor CellsOpsinsallodyniaanalgesiadorsal hornhyperalgesiaopticsOptogeneticspainplasticityspinal cord

Identifiers

PMID27030718
PMCPMC4955967

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.