Evidence map›Paper›PMID 29051090›Full record

ArticleJournal of neuroscience methods2018

Comparative one- and two-photon uncaging of MNI-glutamate and MNI-kainate on hippocampal CA1 neurons.

Stefan Passlick, Graham C R Ellis-Davies

Abstract readComparative Study
In one paragraph

Article in Journal of neuroscience methods, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.8field-weighted citation impact, top 32% 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

11 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Optofluidic control of rodent learning using cloaked caged glutamate.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  8. Article
  9. Article
  10. Article
  11. Two-Photon Uncaging of Glutamate.Frontiers in synaptic neuroscience · 2018
    Review
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

2 authors at 1 institution in 1 country.

Stefan PasslickDepartment of Neuroscience, Mount Sinai School of Medicine, New York, NY 10029, USA. Electronic address: stefan.passlick@mssm.edu.
Graham C R Ellis-DaviesDepartment of Neuroscience, Mount Sinai School of Medicine, New York, NY 10029, USA.
Icahn School of Medicine at Mount Sinai · US

Funding

PHOTOCHEMICAL REGULATION OF CALCIUM IN CELL PHYSIOLOGYR01GM053395 · NIGMS · OREGON HEALTH AND SCIENCE UNIVERSITY · PI ELLIS-DAVIES, GRAHAM · 1995 to 2020
$6.1M
Optical probes for controlling cellular functionR01NS069720 · NINDS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ELLIS-DAVIES, GRAHAM · 2010 to 2017
$3.2M
Structure-Function Relationships of Experience-Dependent Spine PlasticityR21EY026702 · NEI · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ELLIS-DAVIES, GRAHAM, MORISHITA, HIROFUMI · 2017 to 2018
$461k
NEI NIH HHS R21 EY026702NIGMS NIH HHS R01 GM053395NINDS NIH HHS R01 NS069720
6 · The paper itself

Abstract

backgroundThe light-induced release of neurotransmitters from caging chromophores provides a powerful means to study the underlying receptors in a physiologically relevant context. Surprisingly, most caged neurotransmitters, including the widely used 4-methoxy-7-nitroindolinyl (MNI)-glutamate, show strong antagonism against GABA-A receptors. Kainate has been shown to exhibit a higher efficacy at glutamate receptors compared to glutamate itself. Thus, uncaging of kainate might allow the application of the caged compound at lower, less antagonistic concentrations. NEW

methodsThis study provides a detailed comparison of MNI-glutamate and MNI-kainate uncaging by different modes of one- and two-photon irradiation on hippocampal CA1 pyramidal neurons in acute brain slices. RESULTS/COMPARISON WITH EXISTING

methodsUnexpectedly, the data revealed that currents in response to MNI-glutamate uncaging were larger compared to MNI-kainate with local one-photon laser uncaging at the soma and two-photon uncaging at the same spines. Furthermore, the direct comparison demonstrates the influence of type of caged agonist and light delivery conditions used for uncaging on the amplitude and kinetic properties of the current response.

conclusionThese findings highlight the importance of experimental design for uncaging experiments and provide a basis for future studies employing one- and two-photon uncaging to understand glutamate-dependent processes. It further provides the first example of two-photon uncaging of kainate at single spines in acute brain slices.

Indexed as

Patch-Clamp TechniquesAnimalsCA1 Region, HippocampalDendritic SpinesExcitatory Amino Acid AgonistsFemaleGlutamatesIndolesIn Vitro TechniquesKainic AcidLasersMaleMembrane PotentialsMice, Inbred C57BLPhotic StimulationPyramidal Cells4-methoxy-7-nitroindolinyl-glutamateExcitatory Amino Acid AgonistsGlutamatesIndolesKainic AcidGlutamateKainateUncaging

Identifiers

PMID29051090
PMCPMC5705412
OpenAlexW2766435638

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.