Evidence map›Paper›PMID 19167318›Full record

ArticleBiophysical journal2009

Fast electromechanical amplification in the lateral membrane of the outer hair cell.

Joseph Santos-Sacchi, Enrique Navarrete, Lei Song

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.4field-weighted citation impact, top 44% 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

13 citing papers in PubMed, 24 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Joseph Santos-SacchiDepartment of Surgery (Otolaryngology), Yale University School of Medicine, New Haven, Connecticut 06510, USA. joseph.santos-sacchi@yale.edu
Enrique Navarrete
Lei Song
Yale University · US

Funding

MEMBRANES PROPERTIES OF CELLS COMPRISING THE OHC SYSTEMR01DC000273 · NIDCD · YALE UNIVERSITY · PI SANTOS-SACCHI, JOSEPH R · 1989 to 2015
$6.8M
NIDCD NIH HHS DC00273NIDCD NIH HHS R01 DC000273
6 · The paper itself

Abstract

Outer hair cells provide amplification within the mammalian cochlea to enhance audition. The mechanism is believed to reside within the lateral membrane of the cell that houses an expansive array of molecular motors, identified as prestin, which drives somatic electromotility. By measuring nonlinear capacitance, the electrical signature of electromotility, at kilohertz rates we have uncovered new details of the early molecular events that arise from voltage perturbations of prestin. We show that dynamic changes in motor state probability occur within the kilohertz range, and signify an amplificatory event. Additionally, we show a lack of effect of Cl driving force, an absence of cell length effect (indicating that the kinetics does not vary across auditory frequency), and the first demonstration of the time dependence of tension induced amplificatory shifts. The process we have identified, where the stimulus-response function shifts in time along the stimulus axis in a multi-exponential manner, bears similarities to those components of adaptation found in the OHC stereociliar transducer identified recently. As with the forward transducer, the speed of the reverse transducer amplificatory event consequently impacts on high frequency peripheral auditory processing.

Indexed as

AlgorithmsAnimalsCell MembraneElectric CapacitanceGuinea PigsHair Cells, Auditory, OuterKineticsMembrane PotentialsPatch-Clamp TechniquesProteinsTime FactorsPres protein, Cavia porcellusProteins

Identifiers

PMID19167318
PMCPMC2716482
OpenAlexW2081121159

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.