Evidence map›Paper›PMID 34576224›Full record

ArticleInternational journal of molecular sciences2021

Junctional Modulation of Round Window Membrane Enhances Dexamethasone Uptake into the Inner Ear and Recovery after NIHL.

Seong-Hun Jeong, Yoonjoong Kim, Ah-Ra Lyu, Sun-Ae Shin, Tae Hwan Kim, Yang Hoon Huh, A Reum Je, Akanksha Gajibhiye, Yang Yu, Yongde Jin and 2 more

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Guinea Pig Round Window Membrane Explantation for Ex Vivo Studies.Journal of visualized experiments : JoVE · 2024
    Article
  5. Review
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

12 authors at 5 institutions in 2 countries.

Seong-Hun JeongDepartment of Medical Science, Chungnam National University, Daejeon 35015, Korea.
Yoonjoong KimDepartment of Otolaryngology-Head and Neck Surgery, Chungbuk National University Hospital, Cheongju 28644, Korea.
Ah-Ra LyuDepartment of Medical Science, Chungnam National University, Daejeon 35015, Korea.
Sun-Ae ShinDepartment of Otolaryngology-Head and Neck Surgery, Chungnam National University, Daejeon 35015, Korea.
Tae Hwan KimBiomedical Research Institute, Chungnam National University Hospital, Daejeon 35015, Korea.
Yang Hoon HuhElectron Microscopy Research Center, Korea Basic Science Institute, Cheongju 28116, Korea.
A Reum JeElectron Microscopy Research Center, Korea Basic Science Institute, Cheongju 28116, Korea.
Akanksha GajibhiyeDepartment of Medical Science, Chungnam National University, Daejeon 35015, Korea.
Yang YuDepartment of Otolaryngology-Head and Neck Surgery, Chungnam National University, Daejeon 35015, Korea.
Yongde JinDepartment of Otolaryngology-Head and Neck Surgery, Yanbian University Hospital, Yanji 133000, China.
Min Jung ParkDepartment of Otolaryngology-Head and Neck Surgery, Chungnam National University, Daejeon 35015, Korea.ORCID 0000-0001-5644-9585
Yong-Ho ParkDepartment of Medical Science, Chungnam National University, Daejeon 35015, Korea.ORCID 0000-0003-2106-3791
Chungnam National University · KRKorea Basic Science Institute · KRChungbuk National University Hospital · KRChungnam National University Hospital · KRYanbian University Hospital · CN

Funding

Chungnam National University 2020-1433-01
6 · The paper itself

Abstract

Delivery of substances into the inner ear via local routes is increasingly being used in clinical treatment. Studies have focused on methods to increase permeability through the round window membrane (RWM) and enhance drug diffusion into the inner ear. However, the clinical applications of those methods have been unclear and few studies have investigated the efficacy of methods in an inner ear injury model. Here, we employed the medium chain fatty acid caprate, a biologically safe, clinically applicable substance, to modulate tight junctions of the RWM. Intratympanic treatment of sodium caprate (SC) induced transient, but wider, gaps in intercellular spaces of the RWM epithelial layer and enhanced the perilymph and cochlear concentrations/uptake of dexamethasone. Importantly, dexamethasone co-administered with SC led to significantly more rapid recovery from noise-induced hearing loss at 4 and 8 kHz, compared with the dexamethasone-only group. Taken together, our data indicate that junctional modulation of the RWM by SC enhances dexamethasone uptake into the inner ear, thereby hastening the recovery of hearing sensitivity after noise trauma.

Indexed as

AnimalsCochleaDecanoic AcidsDexamethasoneDiffusionDrug Delivery SystemsEar, InnerEvoked Potentials, Auditory, Brain StemFatty AcidsHearingHearing Loss, Noise-InducedMaleMicroscopy, Electron, TransmissionPerilymphPermeabilityRatsdecanoic acidDecanoic AcidsDexamethasoneFatty Acidscochleajunctional modulationmedium chain fatty acidNIHLnoise-induced hearing lossround window membraneRWMsodium caprate

Identifiers

PMID34576224
PMCPMC8464844
OpenAlexW3199584285

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.