Evidence map›Paper›PMID 10545149›Full record

ArticleThe Journal of physiology1999

Mode of Ca2+ action on ciliary beat frequency in single ovine airway epithelial cells.

M Salathe, R J Bookman

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

33 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. E-cigarette aerosols of propylene glycol impair BK channel activity and parameters of mucociliary function.American journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. A low [CaPflugers Archiv : European journal of physiology · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Soluble adenylyl cyclase in health and disease.Biochimica et biophysica acta · 2014
    Review
  17. Article
  18. Article
  19. Article
  20. Article
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

2 authors at 1 institution in 1 country.

M SalatheDepartment of Molecular and Cellular Pharmacology and the Division of Pulmonary and Critical Care Medicine, University of Miami School of Medicine, Miami, FL 33136, USA.
R J Bookman
University of Miami · US

Funding

CELLULAR BASIS OF AIRWAY SECRETION CLEARANCE COUPLINGR01HL055341 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI BOOKMAN, RICHARD JOHN · 1997 to 2004
$1.1M
PATHOPHYSIOLOGY OF BRONCHIAL ASTHMAR01HL020989 · NHLBI · MOUNT SINAI MEDICAL CENTER (MIAMI BEACH) · PI WANNER, ADAM · 1985 to 1995
–
NHLBI NIH HHS HL20989NHLBI NIH HHS HL55341NHLBI NIH HHS R01 HL055341
6 · The paper itself

Abstract

1. We analysed the kinetics of coupling between cytoplasmic calcium ([Ca2+]i) and ciliary beat frequency (CBF) using simultaneous single cilium recording and single cell [Ca2+]i measurements from cultured ovine tracheal epithelial cells. 2. CBF and [Ca2+]i (indicated by fura-2) were measured at rest and in response to activation of the G-protein coupled M3 muscarinic receptor by 10 microM acetylcholine (ACh). 3. Fourier transform analysis of 3 s data segments of light intensity from phase-contrast microscopy showed no significant delay between changes in [Ca2+]i and CBF during a 2 min exposure to ACh and subsequent washout. 4. CBF time resolution was improved by computing instantaneous beat frequency. This revealed that CBF lagged the rapid increase in [Ca2+]i in response to ACh with a delay of less than 1 beat cycle (143 ms at 7 Hz). When CBF was estimated by an improved Fourier method, this delay was observed to be 70 +/- 30 ms (mean +/- s.e.m.; n = 20 cilia). During the slower return to baseline, a lag of 8 +/- 3.2 s was observed, indicative of hysteresis. 5. While calmodulin inhibitors (calmidazolium and W-7; each n = 5) decreased baseline CBF by an average of 1.1 +/- 0.1 Hz, they did not alter the kinetic relationship between [Ca2+]i and CBF. Similarly, phosphatase inhibitors (okadaic acid and cyclosporin A; each n = 5), changed neither baseline CBF nor the kinetic coupling between [Ca2+]i and CBF. 6. These data suggest that the timing of Ca2+ action on CBF in ovine airway epithelial cells, is unlikely to be determined by phosphorylation reactions involving calmodulin or kinase/phosphatase reactions. 7. A simple model for Ca2+ stimulation of CBF is presented. Fits of the model to the data suggest four or more Ca2+ ions bind cooperatively to speed up CBF.

Indexed as

AnimalsCalciumCells, CulturedCiliaCytoplasmEpithelial CellsModels, BiologicalOsmolar ConcentrationSheepTracheaCalcium

Identifiers

PMID10545149
PMCPMC2269609
OpenAlexW2018013006

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.