Evidence map›Paper›PMID 25652929›Full record

ArticleJournal of neurophysiology2015

A1 adenosine receptor-mediated GIRK channels contribute to the resting conductance of CA1 neurons in the dorsal hippocampus.

Chung Sub Kim, Daniel Johnston

Open access · greenAbstract read
In one paragraph

Article in Journal of neurophysiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

52 citing papers in PubMed, 93 citations in OpenAlex.

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  15. Review
  16. Neuronal G protein-gated KAmerican journal of physiology. Cell physiology · 2022
    Review
  17. Article
  18. Article
  19. Review
  20. Neuronal Adenosine AFrontiers in cellular neuroscience · 2022
    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

2 authors at 1 institution in 1 country.

Chung Sub KimDepartment of Neuroscience and Center for Learning and Memory, University of Texas at Austin, Austin, Texas.
Daniel JohnstonDepartment of Neuroscience and Center for Learning and Memory, University of Texas at Austin, Austin, Texas djohnston@mail.clm.utexas.edu.
The University of Texas at Austin · US

Funding

Neuronal Mechanisms for Working Memory in Prefrontal CortexR01MH094839 · NIMH · UNIVERSITY OF TEXAS AT AUSTIN · PI JOHNSTON, DANIEL, MAUK, MICHAEL D · 2011 to 2015
$1.9M
Cellular Information Processing in the HippocampusR01NS084473 · NINDS · UNIVERSITY OF TEXAS AT AUSTIN · PI JOHNSTON, DANIEL · 2013 to 2017
$1.7M
Calcium store-induced intrinsic plasticity in the hippocampusR21NS077477 · NINDS · UNIVERSITY OF TEXAS AT AUSTIN · PI JOHNSTON, DANIEL · 2011 to 2013
$395k
NIMH NIH HHS R01 MH094839NINDS NIH HHS NS077477NINDS NIH HHS NS084473NINDS NIH HHS R01 NS084473NINDS NIH HHS R21 NS077477
6 · The paper itself

Abstract

The dorsal and ventral hippocampi are functionally and anatomically distinct. Recently, we reported that dorsal Cornu Ammonis area 1 (CA1) neurons have a more hyperpolarized resting membrane potential and a lower input resistance and fire fewer action potentials for a given current injection than ventral CA1 neurons. Differences in the hyperpolarization-activated cyclic nucleotide-gated cation conductance between dorsal and ventral neurons have been reported, but these differences cannot fully account for the different resting properties of these neurons. Here, we show that coupling of A1 adenosine receptors (A1ARs) to G-protein-coupled inwardly rectifying potassium (GIRK) conductance contributes to the intrinsic membrane properties of dorsal CA1 neurons but not ventral CA1 neurons. The block of GIRKs with either barium or the more specific blocker Tertiapin-Q revealed that there is more resting GIRK conductance in dorsal CA1 neurons compared with ventral CA1 neurons. We found that the higher resting GIRK conductance in dorsal CA1 neurons was mediated by tonic A1AR activation. These results demonstrate that the different resting membrane properties between dorsal and ventral CA1 neurons are due, in part, to higher A1AR-mediated GIRK activity in dorsal CA1 neurons.

Indexed as

Membrane PotentialsAdenosine A1 Receptor AntagonistsAnimalsBariumBee VenomsCA1 Region, HippocampalG Protein-Coupled Inwardly-Rectifying Potassium ChannelsMalePotassium Channel BlockersPyramidal CellsRats, Sprague-DawleyReceptor, Adenosine A1Xanthines1,3-dipropyl-8-cyclopentylxanthineAdenosine A1 Receptor AntagonistsBariumBee VenomsG Protein-Coupled Inwardly-Rectifying Potassium ChannelsPotassium Channel BlockersReceptor, Adenosine A1tertiapinXanthinesA1 adenosine receptorsdorsal and ventral hippocampusGIRK

Identifiers

PMID25652929
PMCPMC4416607
OpenAlexW2155669148

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.