Evidence map›Paper›PMID 25663274›Full record

Trial reportCell and tissue research2015

Macromolecular organization and fine structure of the human basilar membrane - RELEVANCE for cochlear implantation.

Wei Liu, Francesca Atturo, Robair Aldaya, Peter Santi, Sebahattin Cureoglu, Sabrina Obwegeser, Rudolf Glueckert, Kristian Pfaller, Annelies Schrott-Fischer, Helge Rask-Andersen

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in Cell and tissue research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 48 citations in OpenAlex.

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  15. Atlas-based segmentation of cochlear microstructures in cone beam CT.International journal of computer assisted radiology and surgery · 2021
    Article
  16. Review
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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

10 authors at 3 institutions in 3 countries.

Wei LiuDepartment of Surgical Sciences, Head and Neck Surgery, section of Otolaryngology, Uppsala University Hospital, 751 85, Uppsala, Sweden, lwoo24@gmail.com.
Francesca Atturo
Robair Aldaya
Peter Santi
Sebahattin Cureoglu
Sabrina Obwegeser
Rudolf Glueckert
Kristian Pfaller
Annelies Schrott-Fischer
Helge Rask-Andersen
Universität Innsbruck · ATUniversity of Minnesota · USUppsala University Hospital · SE

Funding

Pathology and pathogenesis of otitis media syndromic ear and Meniere's diseaseU24DC011968 · NIDCD · UNIVERSITY OF MINNESOTA · PI CUREOGLU, SEBAHATTIN · 2011 to 2015
$2.2M
NIDCD NIH HHS U24 DC011968
6 · The paper itself

Abstract

introductionCochlear micromechanics and frequency tuning depend on the macromolecular organization of the basilar membrane (BM), which is still unclear in man. Novel techniques in cochlear implantation (CI) motivate further analyses of the BM. MATERIALS AND

methodsNormal cochleae from patients undergoing removal of life-threatening petro-clival meningioma and an autopsy specimen from a normal human were used. Laser-confocal microscopy, high resolution scanning (SEM) and transmission electron microscopy (TEM) were carried out in combination. In addition, one human temporal bone was decellularized and investigated by SEM.

resultsThe human BM consisted in four separate layers: (1) epithelial basement membrane positive for laminin-β2 and collagen IV, (2) BM "proper" composed of radial fibers expressing collagen II and XI, (3) layer of collagen IV and (4) tympanic covering layer (TCL) expressing collagen IV, fibronectin and integrin. BM thickness varied both radially and longitudinally (mean 0.55-1.16 μm). BM was thinnest near the OHC region and laterally.

conclusionsThere are several important similarities and differences between the morphology of the BM in humans and animals. Unlike in animals, it does not contain a distinct pars tecta (arcuate) and pectinata. Its width increases and thickness decreases as it travels apically in the cochlea. Findings show that the human BM is thinnest and probably most vibration-sensitive at the outer pillar feet/Deiter cells at the OHCs. The inner pillar and IHCs seem situated on a fairly rigid part of the BM. The gradient design of the BM suggests that its vulnerability increases apical wards when performing hearing preservation CI surgery.

Indexed as

Cochlear ImplantationBasilar MembraneHumansMicroscopy, Electron, ScanningMicroscopy, Electron, Transmission

Identifiers

PMID25663274
PMCPMC4412841
OpenAlexW2074971108

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.