Evidence map›Paper›PMID 29783119›Full record

ArticleBiomaterials2018

In vivo imaging of neuronal calcium during electrode implantation: Spatial and temporal mapping of damage and recovery.

James R Eles, Alberto L Vazquez, Takashi D Y Kozai, X Tracy Cui

Abstract read
In one paragraph

Article in Biomaterials, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

58 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. OPTRACE: Optical Imaging-Guided Transplantation and Tracking of Cells in the Mouse Brain.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  5. Article
  6. Article
  7. Chronic alteration of CabioRxiv : the preprint server for biology · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Neural Basis of Number Sense in Larval Zebrafish.bioRxiv : the preprint server for biology · 2024
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  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

4 authors.

James R ElesBioengineering, University of Pittsburgh, United States; Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, United States.
Alberto L VazquezBioengineering, University of Pittsburgh, United States; Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, United States; Radiology, University of Pittsburgh, United States.
Takashi D Y KozaiBioengineering, University of Pittsburgh, United States; Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, United States; NeuroTech Center of the University of Pittsburgh Brain Institute, United States; Center for Neuroscience, University of Pittsburgh, United States.
X Tracy CuiBioengineering, University of Pittsburgh, United States; Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, United States. Electronic address: xic11@pitt.edu.

Funding

Improving chronic neural recording performance through biomaterial strategiesR01NS062019 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CUI, XINYAN TRACY · 2008 to 2018
$4.4M
Inhibition of Neural Electrode-mediated Inflammation and Neuronal Cell DeathR01NS089688 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CUI, XINYAN TRACY · 2015 to 2019
$3.1M
Mechanisms behind Electrode Induced BBB damage's impact on neural recordingR01NS094396 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KOZAI, TAKASHI DANIEL YOSHIDA · 2015 to 2019
$2.2M
Excitatory and Inhibitory Activity Contributions to Hemodynamic SignalsR01NS094404 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI VAZQUEZ, ALBERTO L · 2016 to 2020
$1.7M
NINDS NIH HHS R01 NS062019NINDS NIH HHS R01 NS089688NINDS NIH HHS R01 NS094396NINDS NIH HHS R01 NS094404
6 · The paper itself

Abstract

Implantable electrode devices enable long-term electrophysiological recordings for brain-machine interfaces and basic neuroscience research. Implantation of these devices, however, leads to neuronal damage and progressive neural degeneration that can lead to device failure. The present study uses in vivo two-photon microscopy to study the calcium activity and morphology of neurons before, during, and one month after electrode implantation to determine how implantation trauma injures neurons. We show that implantation leads to prolonged, elevated calcium levels in neurons within 150 μm of the electrode interface. These neurons show signs of mechanical distortion and mechanoporation after implantation, suggesting that calcium influx is related to mechanical trauma. Further, calcium-laden neurites develop signs of axonal injury at 1-3 h post-insert. Over the first month after implantation, physiological neuronal calcium activity increases, suggesting that neurons may be recovering. By defining the mechanisms of neuron damage after electrode implantation, our results suggest new directions for therapies to improve electrode longevity.

Indexed as

Electrodes, ImplantedAnimalsBrain-Computer InterfacesCalciumCalcium SignalingElectric ImpedanceFluorescent DyesMaleMiceMicroelectrodesMicroscopy, Fluorescence, MultiphotonModels, AnimalNerve DegenerationNeuronsPropidiumSilicone ElastomersCalciumFluorescent DyesPropidiumSilicone ElastomersBrain-computer interfaceForeign body responseMechanical traumaMicroelectrode implantsNeuron calcium imagingTwo-photon microscopy

Identifiers

PMID29783119
PMCPMC5987772

What OpenQuestion holds

Textmetadata
LicenceTDM
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.