Evidence map›Paper›PMID 22235292›Full record

ArticlePloS one2012

Retrieval of context-associated memory is dependent on the Ca(v)3.2 T-type calcium channel.

Chien-Chang Chen, Jhe-Wei Shen, Ni-Chun Chung, Ming-Yuan Min, Sin-Jong Cheng, Ingrid Y Liu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 16% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

  1. Pooled it
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  9. Anxiety and hippocampal neuronal activity: Relationship and potential mechanisms.Cognitive, affective & behavioral neuroscience · 2022
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  10. [Effects ofBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2022
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  11. CaInternational journal of molecular sciences · 2022
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  12. Article
  13. Neuronal Cav3 channelopathies: recent progress and perspectives.Pflugers Archiv : European journal of physiology · 2020
    Review
  14. Genetic T-type calcium channelopathies.Journal of medical genetics · 2020
    Review
  15. Review
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  18. Article
  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

6 authors at 3 institutions in 1 country.

Chien-Chang ChenInstitute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.
Jhe-Wei Shen
Ni-Chun Chung
Ming-Yuan Min
Sin-Jong Cheng
Ingrid Y Liu
Tzu Chi University · TWNational Taiwan University · TWInstitute of Biomedical Sciences, Academia Sinica · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Among all voltage-gated calcium channels, the T-type Ca²⁺ channels encoded by the Ca(v)3.2 genes are highly expressed in the hippocampus, which is associated with contextual, temporal and spatial learning and memory. However, the specific involvement of the Ca(v)3.2 T-type Ca²⁺ channel in these hippocampus-dependent types of learning and memory remains unclear. To investigate the functional role of this channel in learning and memory, we subjected Ca(v)3.2 homozygous and heterozygous knockout mice and their wild-type littermates to hippocampus-dependent behavioral tasks, including trace fear conditioning, the Morris water-maze and passive avoidance. The Ca(v)3.2 ⁻/⁻ mice performed normally in the Morris water-maze and auditory trace fear conditioning tasks but were impaired in the context-cued trace fear conditioning, step-down and step-through passive avoidance tasks. Furthermore, long-term potentiation (LTP) could be induced for 180 minutes in hippocampal slices of WTs and Ca(v)3.2 ⁺/⁻ mice, whereas LTP persisted for only 120 minutes in Ca(v)3.2 ⁻/⁻ mice. To determine whether the hippocampal formation is responsible for the impaired behavioral phenotypes, we next performed experiments to knock down local function of the Ca(v)3.2 T-type Ca²⁺ channel in the hippocampus. Wild-type mice infused with mibefradil, a T-type channel blocker, exhibited similar behaviors as homozygous knockouts. Taken together, our results demonstrate that retrieval of context-associated memory is dependent on the Ca(v)3.2 T-type Ca²⁺ channel.

Indexed as

AnimalsAvoidance LearningCA1 Region, HippocampalCalcium Channel BlockersCalcium Channels, T-TypeConditioning, PsychologicalCuesFearGene Knockout TechniquesHearingLong-Term PotentiationMaleMaze LearningMemoryMibefradilMiceCacna1h protein, mouseCalcium Channel BlockersCalcium Channels, T-TypeMibefradil

Identifiers

PMID22235292
PMCPMC3250437
OpenAlexW1969994349

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.