Evidence map›Paper›PMID 24938914›Full record

ArticleBrain stimulation

High frequency stimulation extends the refractory period and generates axonal block in the rat hippocampus.

Zhouyan Feng, Ying Yu, Zheshan Guo, Jiayue Cao, Dominique M Durand

Open access · greenAbstract read
In one paragraph

Article in Brain stimulation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Neural Mechanisms Underlying Robust Target Selection in Response to Microstimulation of the Oculomotor System.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  4. The Therapeutic Frequency Profile of Subthalamic Nucleus Deep Brain Stimulation in Rats Is Shaped by Antidromic Spike Failure.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    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

5 authors at 3 institutions in 3 countries.

Zhouyan FengKey Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang 310027, PR China. Electronic address: fengzhouyan@139.com.
Ying YuKey Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang 310027, PR China.
Zheshan GuoKey Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang 310027, PR China.
Jiayue CaoKey Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang 310027, PR China.
Dominique M DurandNeural Engineering Center, Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
Zhejiang University · CNCase Western Reserve University · USMinistry of Education · NZ

Funding

Detection and Control of EpilepsyR01NS060757 · NINDS · CASE WESTERN RESERVE UNIVERSITY · PI DURAND, DOMINIQUE M · 2008 to 2016
$2.8M
NINDS NIH HHS 2R01NS060757-05A1NINDS NIH HHS R01 NS060757
6 · The paper itself

Abstract

backgroundThe therapeutic mechanisms of deep brain stimulations (DBS) are not fully understood. Axonal block induced by high frequency stimulation (HFS) has been suggested as one possible underlying mechanism of DBS.

objectiveTo investigate the mechanism of the generation of HFS-induced axonal block.

methodsHigh frequency pulse trains were applied to the fiber tracts of alveus and Schaffer collaterals in the hippocampal CA1 neurons in anaesthetized rats at 50, 100 and 200 Hz. The amplitude changes of antidromic-evoked population spikes (APS) were measured to determine the degree of axonal block. The amplitude ratio of paired-pulse evoked APS was used to assess the changes of refractory period.

resultsThere were two distinct recovery stages of axonal block following the termination of HFS. One frequency-dependent faster phase followed by another frequency-independent slower phase. Experiments with specially designed temporal patterns of stimulation showed that HFS produced an extension of the duration of axonal refractory period thereby causing a fast recovery phase of the axonal block. Thus, prolonged gaps inserted within HFS trains could eliminate the axonal block and induced large population spikes and even epileptiform activity in the upstream or downstream regions.

conclusionsExtension of refractory period plays an important role on HFS induced axonal block. Stimulation pattern with properly designed pauses could be beneficial for different requirements of excitation or inhibition in DBS therapies.

Indexed as

AnimalsAxonsDeep Brain StimulationElectric StimulationHippocampusMaleNeuronsRatsRats, Sprague-DawleyRefractory Period, ElectrophysiologicalAxon blockDeep brain stimulationHippocampusRefractory periodTemporal patterns of stimulation

Identifiers

PMID24938914
PMCPMC4167911
OpenAlexW2017797517

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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.