Evidence map›Paper›PMID 31407107›Full record

ArticleJournal of the Association for Research in Otolaryngology : JARO2019

Morphological Immaturity of the Neonatal Organ of Corti and Associated Structures in Humans.

Sebastiaan W F Meenderink, Christopher A Shera, Michelle D Valero, M Charles Liberman, Carolina Abdala

Open access · greenAbstract read
In one paragraph

Article in Journal of the Association for Research in Otolaryngology : JARO, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 18% 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

15 citing papers in PubMed, 22 citations in OpenAlex.

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  4. Inner Ear Organoids: Strengths and Limitations.Journal of the Association for Research in Otolaryngology : JARO · 2024
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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 2 institutions in 1 country.

Sebastiaan W F MeenderinkAuditory Research Center, Caruso Department of Otolaryngology, University of Southern California, 1640 Marengo Street, Los Angeles, CA, 90033, USA.
Christopher A SheraAuditory Research Center, Caruso Department of Otolaryngology, University of Southern California, 1640 Marengo Street, Los Angeles, CA, 90033, USA.
Michelle D ValeroEaton-Peabody Laboratories, Massachusetts Eye and Ear, 243 Charles Street, Boston, MA, 02114, USA.
M Charles LibermanEaton-Peabody Laboratories, Massachusetts Eye and Ear, 243 Charles Street, Boston, MA, 02114, USA.
Carolina AbdalaAuditory Research Center, Caruso Department of Otolaryngology, University of Southern California, 1640 Marengo Street, Los Angeles, CA, 90033, USA. carolina.abdala@usc.edu.ORCID 0000-0002-1269-8886
University of Southern California · USMassachusetts Eye and Ear Infirmary · US

Funding

SINGLE-NEURON MARKING IN THE STUDY OF ABNORMAL COCHLEASR01DC000188 · NIDCD · MASSACHUSETTS EYE AND EAR INFIRMARY · PI Gabriel Corfas, M. Charles Liberman · 1989 to 2026
$15.1M
UNDERSTANDING OTOACOUSTIC EMISSIONSR01DC003687 · NIDCD · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Christopher A Shera · 1999 to 2026
$9.8M
Postnatal Cochlear Maturation and Sources of ImmaturityR01DC003552 · NIDCD · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ABDALA, CAROLINA · 2003 to 2019
$5.5M
DEVELOPMENT OF HUMAN COCHLEAR FUNCTIONR29DC003552 · NIDCD · HOUSE EAR INSTITUTE · PI ABDALA, CAROLINA · 1998 to 2002
$304k
NATURE AND MECHANISMS OF ODORANT RECEPTOR GENE CHOICEF32DC000188 · NIDCD · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI SULLIVAN, SUSAN L · 1994 to 1994
–
NIDCD NIH HHS F32 DC000188NIDCD NIH HHS R01 DC000188NIDCD NIH HHS R01 DC003552NIDCD NIH HHS R01 DC003687
6 · The paper itself

Abstract

Although anatomical development of the cochlear duct is thought to be complete by term birth, human newborns continue to show postnatal immaturities in functional measures such as otoacoustic emissions (OAEs). Some of these OAE immaturities are no doubt influenced by incomplete maturation of the external and middle ears in infants; however, the observed prolongation of distortion-product OAE phase-gradient delays in newborns cannot readily be explained by conductive factors. This functional immaturity suggests that the human cochlea at birth may lack fully adult-like traveling-wave motion. In this study, we analyzed temporal-bone sections at the light microscopic level in newborns and adults to quantify dimensions and geometry of cochlear structures thought to influence the mechanical response of the cochlea. Contrary to common belief, results show multiple morphological immaturities along the length of the newborn spiral, suggesting that important refinements in the size and shape of the sensory epithelium and associated structures continue after birth. Specifically, immaturities of the newborn basilar membrane and organ of Corti are consistent with a more compliant and less massive cochlear partition, which could produce longer DPOAE delays and a shifted frequency-place map in the neonatal ear.

Indexed as

AdultAge FactorsBasilar MembraneCochleaCochlear DuctHumansInfant, NewbornOrgan of CortiSpiral LaminaAnatomyBasilar membraneCochleaDevelopmentNewbornOAETemporal bone

Identifiers

PMID31407107
PMCPMC6797686
OpenAlexW2968234492

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.