Evidence map›Paper›PMID 24705276›Full record

ArticlePloS one2014

CaV3.2 T-type calcium channels in peripheral sensory neurons are important for mibefradil-induced reversal of hyperalgesia and allodynia in rats with painful diabetic neuropathy.

Aleksandar Lj Obradovic, Sung Mi Hwang, Joseph Scarpa, Sung Jun Hong, Slobodan M Todorovic, Vesna Jevtovic-Todorovic

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
  2. Article
  3. Diabetic neuropathy: cutting-edge research and future directions.Signal transduction and targeted therapy · 2025
    Review
  4. Review
  5. Voltage-dependent CaPflugers Archiv : European journal of physiology · 2022
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Contribution of T-Type Calcium Channels to Spinal Cord Injury-Induced Hyperexcitability of Nociceptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  15. Glycosylation of CaFrontiers in cellular neuroscience · 2020
    Article
  16. Article
  17. Inhibition of CaBritish journal of pharmacology · 2019
    Article
  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 2 institutions in 3 countries.

Aleksandar Lj ObradovicDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia, United States of America; Department of Physiology, Faculty of Pharmacy University of Belgrade, Belgrade, Serbia.
Sung Mi HwangDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia, United States of America; Department of Anesthesiology and Pain Medicine, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, South Korea.
Joseph ScarpaDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia, United States of America.
Sung Jun HongDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia, United States of America; Department of Anesthesiology and Pain Medicine, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, South Korea.
Slobodan M TodorovicDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia, United States of America; Department of Neuroscience, University of Virginia Health System, Charlottesville, Virginia, United States of America; Neuroscience Graduate Program, University of Virginia Health System, Charlottesville, Virginia, United States of America.
Vesna Jevtovic-TodorovicDepartment of Anesthesiology, University of Virginia Health System, Charlottesville, Virginia, United States of America; Department of Neuroscience, University of Virginia Health System, Charlottesville, Virginia, United States of America; Neuroscience Graduate Program, University of Virginia Health System, Charlottesville, Virginia, United States of America.
University of Virginia Health System · USUniversity of Belgrade · RS

Funding

Validation of voltage-dependent T-channel blockers in treatment of neuropathic paR21DA029342 · NIDA · UNIVERSITY OF VIRGINIA · PI JEVTOVIC-TODOROVIC, VESNA, TODOROVIC, SLOBODAN M. · 2010 to 2011
$383k
NIDA NIH HHS DA 029342NIDA NIH HHS R21 DA029342
6 · The paper itself

Abstract

We recently showed that streptozotocin (STZ) injections in rats lead to the development of painful peripheral diabetic neuropathy (PDN) accompanied by enhancement of CaV3.2 T-type calcium currents (T-currents) and hyperexcitability in dorsal root ganglion (DRG) neurons. Here we used the classical peripherally acting T-channel blocker mibefradil to examine the role of CaV3.2 T-channels as pharmacological targets for treatment of painful PDN. When administered intraperitoneally (i.p.), at clinically relevant doses, mibefradil effectively alleviated heat, cold and mechanical hypersensitivities in STZ-treated diabetic rats in a dose-dependent manner. We also found that CaV3.2 antisense (AS)-treated diabetic rats exhibit a significant decrease in painful PDN compared with mismatch antisense (MIS)-treated diabetic rats. Co-treatment with mibefradil (9 mg/kg i.p.) resulted in reversal of heat, cold and mechanical hypersensitivity in MIS-treated but not in AS-treated diabetic rats, suggesting that mibefradil and CaV3.2 AS share the same cellular target. Using patch-clamp recordings from acutely dissociated DRG neurons, we demonstrated that mibefradil similarly blocked T-currents in diabetic and healthy rats in a voltage-dependent manner by stabilizing inactive states of T-channels. We conclude that antihyperalgesic and antiallodynic effects of mibefradil in PDN are at least partly mediated by inhibition of CaV3.2 channels in peripheral nociceptors. Hence, peripherally acting voltage-dependent T-channel blockers could be very useful in the treatment of painful symptoms of PDN.

Indexed as

AnimalsCalcium Channel BlockersCalcium Channels, T-TypeDiabetes Mellitus, ExperimentalDiabetic NeuropathiesFemaleHyperalgesiaMibefradilRatsRats, Sprague-DawleySensory Receptor CellsStreptozocinCacna1h protein, ratCalcium Channel BlockersCalcium Channels, T-TypeMibefradilStreptozocin

Identifiers

PMID24705276
PMCPMC3976247
OpenAlexW2080820183

What OpenQuestion holds

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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.