Evidence map›Paper›PMID 17291698›Full record

ArticleHearing research2007

Prophylactic and therapeutic functions of T-type calcium blockers against noise-induced hearing loss.

Haiyan Shen, Baoping Zhang, June-Ho Shin, Debin Lei, Yafei Du, Xiang Gao, Qiuju Wang, Kevin K Ohlemiller, Jay Piccirillo, Jianxin Bao

Open access · greenAbstract read
In one paragraph

Article in Hearing research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

45 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. The Role of Calcium Signaling in Sensorineural Hearing Loss.International journal of medical sciences · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Redox homeostasis dysregulation in noise-induced hearing loss: oxidative stress and antioxidant treatment.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2023
    Review
  7. Review
  8. Review
  9. Article
  10. Association between CaExperimental gerontology · 2021
    Article
  11. Review
  12. Review
  13. Sex-based Differences in Hearing Loss: Perspectives From Non-clinical Research to Clinical Outcomess.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2020
    Review
  14. Article
  15. Review
  16. Review
  17. Otoprotective Effects of Stephania tetrandra S. Moore Herb Isolate against Acoustic Trauma.Journal of the Association for Research in Otolaryngology : JARO · 2018
    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

10 authors at 4 institutions in 2 countries.

Haiyan ShenDepartment of Otolaryngology, Center for Aging, Washington University, 4560 Clayton Avenue, St. Louis, MO 63110, USA.
Baoping Zhang
June-Ho Shin
Debin Lei
Yafei Du
Xiang Gao
Qiuju Wang
Kevin K Ohlemiller
Jay Piccirillo
Jianxin Bao
Washington University in St. Louis · USChinese PLA General Hospital · CNModel Animal Research Center · CNNanjing University · CN

Funding

Roles of Neurequlin-1 in Age Related Neuronal ChangesR01AG024250 · NIA · WASHINGTON UNIVERSITY · PI BAO, JIANXIN · 2004 to 2009
$1.7M
Roles of Neuregulin in Age Related Hearing LossK01AG001016 · NIA · WASHINGTON UNIVERSITY · PI BAO, JIANXIN · 2001 to 2005
$586k
NIA NIH HHS AG001016NIA NIH HHS AG024250NIA NIH HHS K01 AG001016NIA NIH HHS R01 AG024250
6 · The paper itself

Abstract

Cochlear noise injury is the second most frequent cause of sensorineural hearing loss, after aging. Because calcium dysregulation is a widely recognized contributor to noise injury, we examined the potential of calcium channel blockers to reduce noise-induced hearing loss (NIHL) in mice. We focused on two T-type calcium blockers, trimethadione and ethosuximide, which are anti-epileptics approved by the Food and Drug Administration. Young C57BL/6 mice of either gender were divided into three groups: a 'prevention' group receiving the blocker via drinking water before noise exposure; a 'treatment' group receiving the blocker via drinking water after noise exposure; and controls receiving noise alone. Trimethadione significantly reduced NIHL when applied before noise exposure, as determined by auditory brainstem recording. Both ethosuximide and trimethadione were effective in reducing NIHL when applied after noise exposure. Results were influenced by gender, with males generally receiving greater benefit than females. Quantitation of hair cell and neuronal density suggested that preservation of outer hair cells could account for the observed protection. Immunocytochemistry and RT-PCR suggested that this protection involves direct action of T-type blockers on alpha1 subunits comprising one or more Ca(v)3 calcium channel types in the cochlea. Our findings provide a basis for clinical studies testing T-type calcium blockers both to prevent and treat NIHL.

Indexed as

AnimalsAuditory ThresholdBase SequenceCalcium Channel BlockersCalcium Channels, T-TypeCochleaDNA PrimersEthosuximideFemaleHearing Loss, Noise-InducedMaleMiceMice, Inbred C57BLSex CharacteristicsTrimethadioneCalcium Channel BlockersCalcium Channels, T-TypeDNA PrimersEthosuximideTrimethadione

Identifiers

PMID17291698
PMCPMC1903349
OpenAlexW1986279601

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.