Evidence map›Paper›PMID 19422897›Full record

ArticleHearing research2009

Visualization and contractile activity of cochlear pericytes in the capillaries of the spiral ligament.

Min Dai, Alfred Nuttall, Yue Yang, Xiaorui Shi

Open access · greenAbstract read
In one paragraph

Article in Hearing research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

32 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Regulation of Endothelial Nitric Oxide Synthase in the Reticular Lamina of the Organ of Corti by a Nitric Oxide Donor.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2021
    Article
  6. Review
  7. Article
  8. Article
  9. Research advances in pericyte function and their roles in diseases.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 2 institutions in 2 countries.

Min DaiOregon Hearing Research Center (NRC04), Department of Otolaryngology/Head & Neck Surgery, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.
Alfred Nuttall
Yue Yang
Xiaorui Shi
Oregon Health & Science University · USChinese Academy of Medical Sciences & Peking Union Medical College · CN

Funding

PORTLAND AREA COMMUNICATION RESEARCH CORE CENTERP30DC005983 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI NUTTALL, ALFRED L · 2003 to 2017
$9.0M
CONTROL OF INNER EAR MICROCIRULATIONR01DC000105 · NIDCD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NUTTALL, ALFRED L · 1989 to 2017
$7.6M
The role of cochlear pericytes in control of cochlear microcirculationR03DC008888 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI SHI, XIAORUI · 2007 to 2009
$519k
AUDITORY PATHWAYS IN VOCAL LEARNING AND PERCEPTIONF32DC000105 · NIDCD · UNIVERSITY OF MARYLAND COLLEGE PK CAMPUS · PI DURAND, SARAH E · 1994 to 1996
–
NIDCD NIH HHS DC 00105NIDCD NIH HHS DC 005983NIDCD NIH HHS DC 00888NIDCD NIH HHS F32 DC000105NIDCD NIH HHS P30 DC005983NIDCD NIH HHS R01 DC000105NIDCD NIH HHS R03 DC008888
6 · The paper itself

Abstract

Pericytes, mural cells located on microvessels, are considered to play an important role in the formation of the vasculature and the regulation of local blood flow in some organs. Little is known about the physiology of cochlear pericytes. In order to investigate the function of cochlear pericytes, we developed a method to visualize cochlear pericytes using diaminofluorescein-2 diacetate (DAF-2DA) and intravital fluorescence microscopy. This method can permit the study of the effect of vasoactive agents on pericytes under the in vivo and normal physiological condition. The specificity of the labeling method was verified by the immunofluorescence labeling of pericyte maker proteins such as desmin, neural proteoglycan (NG2), and thymocyte differentiation antigen 1 (Thy-1). Superfused K(+) and Ca(2+) to the cochlear lateral wall resulted in localized constriction of capillaries at pericyte locations both in vivo and in vitro, while there was no obvious change in cochlear capillary diameters with application of the adrenergic neurotransmitter noradrenaline. The method could be an effective way to visualize cochlear pericytes and microvessels and study lateral wall vascular physiology. Moreover, we demonstrate for the first time that cochlear pericytes have contractility, which may be important for regulation of cochlear blood flow.

Indexed as

AnimalsCapillariesCochleaFemaleFluoresceinGuinea PigsIndicators and ReagentsMaleMicroscopy, FluorescenceModels, AnatomicPericytesProteoglycansSpiral Ligament of CochleaThy-1 AntigensTime Factors4,5-diaminofluorescein diacetateFluoresceinIndicators and ReagentsProteoglycansThy-1 Antigens

Identifiers

PMID19422897
PMCPMC2757277
OpenAlexW2047401288

What OpenQuestion holds

Textmetadata
LicenceTDM
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.