Evidence map›Paper›PMID 16466873›Full record

ArticleHearing research2006

Uptake of fluorescent gentamicin by vertebrate sensory cells in vivo.

C F Dai, D Mangiardi, D A Cotanche, P S Steyger

Open access · greenAbstract read
In one paragraph

Article in Hearing research, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

66 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Identifying targets to prevent aminoglycoside ototoxicity.Molecular and cellular neurosciences · 2022
    Review
  9. Article
  10. Article
  11. AnFrontiers in molecular neuroscience · 2022
    Article
  12. Review
  13. Mechanisms of Ototoxicity and Otoprotection.Otolaryngologic clinics of North America · 2021
    Review
  14. Article
  15. TheFrontiers in microbiology · 2021
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article

6 more citing papers are in PubMed but not listed here.

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

4 authors at 3 institutions in 2 countries.

C F DaiOregon Hearing Research Center, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
D Mangiardi
D A Cotanche
P S Steyger
Boston Children's Hospital · USFudan University · CNOregon Health & Science University · US

Funding

HAIR CELL RESPONSES TO OTOTOXIC DRUGSR01DC004555 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI STEYGER, PETER STEPHEN · 2001 to 2020
$6.6M
CELL FORM AND GENE EXPRESSION IN HAIR CELL REGENERATIONR01DC001689 · NIDCD · CHILDREN'S HOSPITAL BOSTON · PI COTANCHE, DOUGLAS A · 1992 to 2009
$3.1M
NIDCD NIH HHS R01 DC001689NIDCD NIH HHS R01 DC004555PHS HHS 01689PHS HHS 04555PHS HHS 05983
6 · The paper itself

Abstract

Aminoglycoside uptake in the inner ear remains poorly understood. We subcutaneously injected a fluorescently-conjugated aminoglycoside, gentamicin-Texas Red (GTTR), to investigate the in vivo uptake of GTTR in the inner ear of several vertebrates, and in various murine sensory cells using confocal microscopy. In bullfrogs, GTTR uptake was prominent in mature hair cells, but not in immature hair cells. Avian hair cells accrued GTTR more rapidly at the base of the basilar papilla. GTTR was associated with the hair bundle; and, in guinea pigs and mice, somatic GTTR fluorescence was initially diffuse before punctate (endosomal) fluorescence could be observed. A baso-apical gradient of intracellular GTTR uptake in guinea pig cochleae could only be detected at early time points (<3h). In 21-28 day mice, cochlear GTTR uptake was greatly reduced compared to guinea pigs, 6-day-old mice, or mice treated with ethacrynic acid. In mice, GTTR was also rapidly taken up, and retained, in the kidney, dorsal root and trigeminal ganglia. In linguinal and vibrissal tissues rapid GTTR uptake cleared over a period of several days. The preferential uptake of GTTR by mature saccular, and proximal hair cells resembles the pattern of aminoglycoside-induced hair cell death in bullfrogs and chicks. Differences in the degree of GTTR uptake in hair cells of different species suggests variation in serum levels, clearance rates from serum, and/or the developmental and functional integrity of the blood-labyrinth barrier. GTTR uptake by hair cells in vivo suggests that GTTR has potential to elucidate aminoglycoside transport mechanisms into the inner ear, and as a bio-tracer for in vivo pharmacokinetic studies.

Indexed as

AnimalsAnti-Bacterial AgentsChickensFluorescent DyesGentamicinsGuinea PigsHair Cells, AuditoryMiceMice, Inbred C57BLMicroscopy, ConfocalRana catesbeianaTime FactorsXanthenesAnti-Bacterial AgentsFluorescent DyesGentamicinsTexas redXanthenes

Identifiers

PMID16466873
PMCPMC2424187
OpenAlexW2073696812

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.