Evidence map›Paper›PMID 28640817›Full record

ArticlePloS one2017

An R-CaMP1.07 reporter mouse for cell-type-specific expression of a sensitive red fluorescent calcium indicator.

Philipp Bethge, Stefano Carta, Dayra A Lorenzo, Ladan Egolf, Despoina Goniotaki, Linda Madisen, Fabian F Voigt, Jerry L Chen, Bernard Schneider, Masamichi Ohkura and 4 more

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Article
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  11. Article
  12. Review
  13. Fluorescent protein transgenic mice for the study of CaFree radical biology & medicine · 2022
    Review
  14. Article
  15. Article
  16. Article
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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

14 authors.

Philipp BethgeBrain Research Institute, University of Zurich, Zurich, Switzerland.
Stefano CartaBrain Research Institute, University of Zurich, Zurich, Switzerland.
Dayra A LorenzoBrain Research Institute, University of Zurich, Zurich, Switzerland.
Ladan EgolfBrain Research Institute, University of Zurich, Zurich, Switzerland.
Despoina GoniotakiNeuroscience Center Zurich (ZNZ), University of Zurich and ETH Zurich, Zurich, Switzerland.
Linda MadisenAllen Institute for Brain Science, Seattle, Washington, United States of America.
Fabian F VoigtBrain Research Institute, University of Zurich, Zurich, Switzerland.
Jerry L ChenBrain Research Institute, University of Zurich, Zurich, Switzerland.
Bernard SchneiderBrain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Masamichi OhkuraSaitama University, Brain Science Institute, Saitama, Japan.
Junichi NakaiSaitama University, Brain Science Institute, Saitama, Japan.
Hongkui ZengAllen Institute for Brain Science, Seattle, Washington, United States of America.
Adriano AguzziNeuroscience Center Zurich (ZNZ), University of Zurich and ETH Zurich, Zurich, Switzerland.
Fritjof HelmchenBrain Research Institute, University of Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-8867-9569

Funding

A transgenic platform to produce genetic tools for monitoring & manipulating plasR01DA028298 · NIDA · ALLEN INSTITUTE · PI ZENG, HONGKUI · 2009 to 2013
$2.2M
Multi-area two-photon microscopy for revealing long-distance communication between multiple local brain circuitsU01NS090475 · NINDS · UNIVERSITY OF ZURICH · PI HELMCHEN, FRITJOF · 2014 to 2016
$798k
NIDA NIH HHS R01 DA028298NINDS NIH HHS U01 NS090475
6 · The paper itself

Abstract

Genetically encoded calcium indicators (GECIs) enable imaging of in vivo brain cell activity with high sensitivity and specificity. In contrast to viral infection or in utero electroporation, indicator expression in transgenic reporter lines is induced noninvasively, reliably, and homogenously. Recently, Cre/tTA-dependent reporter mice were introduced, which provide high-level expression of green fluorescent GECIs in a cell-type-specific and inducible manner when crossed with Cre and tTA driver mice. Here, we generated and characterized the first red-shifted GECI reporter line of this type using R-CaMP1.07, a red fluorescent indicator that is efficiently two-photon excited above 1000 nm. By crossing the new R-CaMP1.07 reporter line to Cre lines driving layer-specific expression in neocortex we demonstrate its high fidelity for reporting action potential firing in vivo, long-term stability over months, and versatile use for functional imaging of excitatory neurons across all cortical layers, especially in the previously difficult to access layers 4 and 6.

Indexed as

PhotonsAnimalsCalciumGene ExpressionGreen Fluorescent ProteinsMiceMice, TransgenicMolecular ImagingNeocortexCalciumGreen Fluorescent Proteins

Identifiers

PMID28640817
PMCPMC5480891

What OpenQuestion holds

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Registered trials

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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.