Evidence map›Paper›PMID 22613619›Full record

ArticleCNS neuroscience & therapeutics2012

Acute exposure to the mitochondrial complex I toxin rotenone impairs synaptic long-term potentiation in rat hippocampal slices.

Ryoichi Kimura, Lu-Yao Ma, Chen Wu, Dharshaun Turner, Jian-Xin Shen, Kevin Ellsworth, Makoto Wakui, Marwan Maalouf, Jie Wu

Open access · bronzeAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.1field-weighted citation impact, top 27% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

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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

9 authors at 5 institutions in 3 countries.

Ryoichi KimuraDepartment of Physiology, Shantou University Medical College, Shantou, China.
Lu-Yao Ma
Chen Wu
Dharshaun Turner
Jian-Xin Shen
Kevin Ellsworth
Makoto Wakui
Marwan Maalouf
Jie Wu
Barrow Neurological Institute · USSt. Joseph's Hospital and Medical Center · USHirosaki National Hospital · JPShantou University Medical College · CNUniversity of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo evaluate the acute effects of the mitochondrial complex I inhibitor rotenone on rat hippocampal synaptic plasticity.

methodsElectrophysiological field potential recordings were used to measure basal synaptic transmission and synaptic plasticity in rat coronal hippocampal slices. Synaptic long-term potentiation (LTP) was induced by high-frequency stimulation (100 Hz, 1 second × 3 at an interval of 20 seconds). In addition, mitochondrial complex I function was measured using MitoSOX imaging in mitochondrial preparations.

resultsAcute exposure of hippocampal slices to 50 nM rotenone for 1 h did not alter basal CA3-CA1 synaptic transmission though 500 nM rotenone significantly reduced basal synaptic transmission. However, 50 nM rotenone significantly impaired LTP and this rotenone's effect was prevented by co-application of rotenone plus the ketones acetoacetate and β-hydroxybutyrate (1 mM each). Finally, we measured mitochondrial function using MitoSOX imaging in mitochondrial preparations and found that 50 nM rotenone partially reduced mitochondrial function whereas 500 nM rotenone completely eliminated mitochondrial function.

conclusionsOur findings suggest that mitochondrial activity driven by complex I is a sensitive modulator of synaptic plasticity in the hippocampus. Acute exposure of the hippocampus to rotenone eliminates complex I function and in turn impairs LTP.

Indexed as

3-Hydroxybutyric AcidAcetoacetatesAnimalsCA1 Region, HippocampalElectron Transport Complex IElectrophysiological PhenomenaHippocampusIn Vitro TechniquesKetonesLong-Term PotentiationMitochondriaNeuronal PlasticityOxygen ConsumptionRatsRats, WistarRotenone3-Hydroxybutyric AcidAcetoacetatesacetoacetic acidElectron Transport Complex IKetonesRotenoneUncoupling Agents

Identifiers

PMID22613619
PMCPMC6493358
OpenAlexW1945296532

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.