Evidence map›Paper›PMID 19330465›Full record

ArticlePurinergic signalling2009

ATP as a mediator of macula densa cell signalling.

P Darwin Bell, Peter Komlosi, Zhi-Ren Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Purinergic signalling, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 68 citations in OpenAlex.

  1. Claudin-3 is expressed at theFrontiers in physiology · 2026
    Article
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  3. Review
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  8. Review
  9. Article
  10. "I don't get no respect": the role of chloride in acute kidney injury.American journal of physiology. Renal physiology · 2019
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. 0.9% saline is neither normal nor physiological.Journal of Zhejiang University. Science. B · 2016
    Review
  16. The properties, functions, and pathophysiology of maxi-anion channels.Pflugers Archiv : European journal of physiology · 2016
    Review
  17. Renal autoregulation in health and disease.Physiological reviews · 2015
    Review
  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

3 authors at 1 institution in 1 country.

P Darwin BellDepartment of Medicine, Division of Nephrology, Children's Research Institute, Medical University of South Carolina, Charleston, SC, USA, BellPD@MUSC.EDU.
Peter Komlosi
Zhi-Ren Zhang
Medical University of South Carolina · US

Funding

CELLULAR MECHANISMS--TUBULOGLOMERULAR FEEDBACK SYSTEMR01DK032032 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BELL, PHILLIP DARWIN · 1986 to 2009
$2.5M
NIDDK NIH HHS R01 DK032032
6 · The paper itself

Abstract

Within each nephro-vascular unit, the tubule returns to the vicinity of its own glomerulus. At this site, there are specialised tubular cells, the macula densa cells, which sense changes in tubular fluid composition and transmit information to the glomerular arterioles resulting in alterations in glomerular filtration rate and blood flow. Work over the last few years has characterised the mechanisms that lead to the detection of changes in luminal sodium chloride and osmolality by the macula densa cells. These cells are true "sensor cells" since intracellular ion concentrations and membrane potential reflect the level of luminal sodium chloride concentration. An unresolved question has been the nature of the signalling molecule(s) released by the macula densa cells. Currently, there is evidence that macula densa cells produce nitric oxide via neuronal nitric oxide synthase (nNOS) and prostaglandin E(2) (PGE(2)) through cyclooxygenase 2 (COX 2)-microsomal prostaglandin E synthase (mPGES). However, both of these signalling molecules play a role in modulating or regulating the macula-tubuloglomerular feedback system. Direct macula densa signalling appears to involve the release of ATP across the basolateral membrane through a maxi-anion channel in response to an increase in luminal sodium chloride concentration. ATP that is released by macula densa cells may directly activate P2 receptors on adjacent mesangial cells and afferent arteriolar smooth muscle cells, or the ATP may be converted to adenosine. However, the critical step in signalling would appear to be the regulated release of ATP across the basolateral membrane of macula densa cells.

Identifiers

PMID19330465
PMCPMC2776136
OpenAlexW2062208018

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.