Evidence map›Paper›PMID 26494277›Full record

ArticleNeuron2015

Time-Resolved Imaging Reveals Heterogeneous Landscapes of Nanomolar Ca(2+) in Neurons and Astroglia.

Kaiyu Zheng, Lucie Bard, James P Reynolds, Claire King, Thomas P Jensen, Alexander V Gourine, Dmitri A Rusakov

Abstract read
In one paragraph

Article in Neuron, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing 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

80 citing papers in PubMed.

  1. Article
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  8. Review
  9. Spatiotemporal Dynamics of Lateral NaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  10. Ventral striatal astrocytes contribute to reinforcement learning.bioRxiv : the preprint server for biology · 2025
    Article
  11. Article
  12. Spatio-temporal dynamics of lateral NabioRxiv : the preprint server for biology · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

20 more citing papers are in PubMed but not listed here.

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.

Kaiyu ZhengUCL Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK. Electronic address: k.zheng@ucl.ac.uk.
Lucie BardUCL Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK.
James P ReynoldsUCL Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK.
Claire KingUCL Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK.
Thomas P JensenUCL Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK.
Alexander V GourineDepartment of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.
Dmitri A RusakovUCL Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK. Electronic address: d.rusakov@ucl.ac.uk.

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research Council G0600368Wellcome Trust 095064Wellcome Trust 101896
6 · The paper itself

Abstract

Maintaining low intracellular calcium is essential to the functioning of brain cells, yet the phenomenology and mechanisms involved remain an enigma. We have advanced a two-photon excitation time-resolved imaging technique, which exploits high sensitivity of the OGB-1 fluorescence lifetime to nanomolar Ca(2+) concentration ([Ca(2+)]) and enables a high data acquisition rate in situ. The [Ca(2+)] readout is not affected by dye concentration, light scattering, photobleaching, micro-viscosity, temperature, or the main known concomitants of cellular activity. In quiescent tissue, standard whole-cell configuration has little effect on resting [Ca(2+)] inside neuronal dendrites or inside astroglia dye-filled via gap junctions. Mapping basal [Ca(2+)] in neurons and astrocytes with submicron resolution unveils heterogeneous concentration landscapes that depend on age and preceding activity. The rich information content represented by such landscapes in acute slices and in vivo promises to unveil the hitherto unexplored, potentially fundamental aspects of brain cell physiology.

Indexed as

AnimalsAstrocytesCalciumMaleMicroscopy, Fluorescence, MultiphotonNanotechnologyNeuronsOrgan Culture TechniquesRatsRats, Sprague-DawleyTime-Lapse ImagingCalcium

Identifiers

PMID26494277
PMCPMC4622934

What OpenQuestion holds

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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.