Evidence map›Paper›PMID 16809362›Full record

ArticleThe Journal of physiology2006

Modulation of calcium wave propagation in the dendrites and to the soma of rat hippocampal pyramidal neurons.

Shigeo Watanabe, Min Hong, Nechama Lasser-Ross, William N Ross

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.2field-weighted citation impact, top 13% of its field
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

39 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Real-time imaging ofProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  7. RyR-mediated CaProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  8. Review
  9. Review
  10. Article
  11. The neuronal stimulation-transcription coupling map.Current opinion in neurobiology · 2019
    Review
  12. Article
  13. Review
  14. Article
  15. Muscarinic Long-Term Enhancement of Tonic and Phasic GABAFrontiers in cellular neuroscience · 2016
    Article
  16. Article
  17. Dendritic calcium nonlinearities switch the direction of synaptic plasticity in fast-spiking interneurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  18. Review
  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 at 1 institution in 1 country.

Shigeo WatanabeDepartment of Physiology, New York Medical College, Valhalla, NY 10595, USA.
Min Hong
Nechama Lasser-Ross
William N Ross
New York Medical College · US

Funding

OPTICAL ANALYSIS OF THE REGIONAL PROPERTIES OF NEURONSR01NS016295 · NINDS · NEW YORK MEDICAL COLLEGE · PI ROSS, WILLIAM NOEL · 1986 to 2011
$3.1M
Calcium Waves in Pyramidal NeuronsR56NS016295 · NINDS · NEW YORK MEDICAL COLLEGE · PI ROSS, WILLIAM NOEL · 2009 to 2009
$374k
NINDS NIH HHS NS-016295NINDS NIH HHS R01 NS016295NINDS NIH HHS R56 NS016295
6 · The paper itself

Abstract

Repetitive synaptic stimulation in the stratum radiatum (SR) evokes large amplitude Ca2+ waves in the thick apical dendrites of hippocampal CA1 pyramidal neurons. These waves are initiated by activation of metabotropic glutamate receptors (mGluRs), which mobilize inositol-1,4,5-trisphospate (IP3) and release Ca2+ from intracellular stores. We explored mechanisms that modulate the spatial properties of these waves. Higher stimulus current evoked waves of increasing spatial extent. Most waves did not propagate through the soma; the majority stopped close to the junction of the soma and apical dendrite. Pairing strong stimulation with one electrode and subthreshold stimulation with another (associative activation) extended the waves distally but failed to extend waves into the cell body. Pairing synaptic stimulation with backpropagating action potentials enhanced the likelihood of wave generation but did not extend the waves to the somatic region. Priming the stores with Ca2+ entry through voltage dependent channels modulated wave properties but did not extend them past the dendrites. These results are consistent with propagation failing due to the dilution of synaptically generated IP3 as it diffuses into the large volume of the soma (impedance mismatch). Synaptically activating waves in the presence of low concentrations of carbachol, which probably increased the tonic level of IP3 throughout the cell, enhanced the extent of propagation and generated waves that invaded the soma, as long as low-affinity indicators were used to detect the [Ca2+]i changes. Consistent with this explanation direct injection of IP3 into the soma promoted wave propagation into this region. Ca2+ waves that propagated through the cell body were interesting because they did not fill the volume of the soma, but passed through the centre, often with large amplitude. These waves may be particularly effective in activating gene expression and protein synthesis.

Indexed as

Action PotentialsAnimalsCalciumCarbacholCholinergic AgonistsDendritesInositol 1,4,5-TrisphosphatePyramidal CellsRatsRats, Sprague-DawleyReceptors, Metabotropic GlutamateSynaptic TransmissionCalciumCarbacholCholinergic AgonistsInositol 1,4,5-TrisphosphateReceptors, Metabotropic Glutamate

Identifiers

PMID16809362
PMCPMC1819440
OpenAlexW1499218111

What OpenQuestion holds

Textmetadata
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.