Evidence map›Paper›PMID 14679185›Full record

ArticleThe Journal of clinical investigation2003

Physiological role for P2X1 receptors in renal microvascular autoregulatory behavior.

Edward W Inscho, Anthony K Cook, John D Imig, Catherine Vial, Richard J Evans

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
6.2field-weighted citation impact, top 2% 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

80 citing papers in PubMed, 167 citations in OpenAlex.

  1. Possible Roles for Purinergic Receptor P2RX4 in Breast and Prostate Cancers.International journal of molecular sciences · 2025
    Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Vascular mechanotransduction.Physiological reviews · 2023
    Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Purinergic P2XAmerican journal of physiology. Renal physiology · 2020
    Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Review

20 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

5 authors at 3 institutions in 2 countries.

Edward W InschoDepartment of Physiology, Medical College of Georgia, 1120 15th Street, Augusta, Georgia 30912-3000, USA. einscho@mail.mcg.edu
Anthony K Cook
John D Imig
Catherine Vial
Richard J Evans
Augusta University · USUniversity of Leicester · GBTulane University · US

Funding

TRANSPORT EFFECTS OF ARACHIDONATE METABOLITES IN PERFUSED TUBULEP01DK038226 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BROWN, NANCY J. · 1986 to 2015
$22.1M
TLR4 in the Regulation of Renal Microvascular FunctionR01DK044628 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI INSCHO, EDWARD W · 2000 to 2021
$6.2M
PURINERGIC REGULATION OF THE RENAL MICROVASCULATURER29DK044628 · NIDDK · TULANE UNIVERSITY OF LOUISIANA · PI INSCHO, EDWARD W. · 1994 to 1998
–
NIDDK NIH HHS DK-38226NIDDK NIH HHS DK-44628NIDDK NIH HHS P01 DK038226NIDDK NIH HHS R01 DK044628NIDDK NIH HHS R29 DK044628Wellcome Trust
6 · The paper itself

Abstract

This study tests the hypothesis that P2X1 receptors mediate pressure-induced afferent arteriolar autoregulatory responses. Afferent arterioles from rats and P2X1 KO mice were examined using the juxtamedullary nephron technique. Arteriolar diameter was measured in response to step increases in renal perfusion pressure (RPP). Autoregulatory adjustments in diameter were measured before and during P2X receptor blockade with NF279 or A1 receptor blockade with 1,3-dipropyl-8-cyclopentylxanthine (DPCPX). Acute papillectomy or furosemide perfusion was performed to interrupt distal tubular fluid flow past the macula densa, thus minimizing tubuloglomerular feedback-dependent influences on afferent arteriolar function. Under control conditions, arteriolar diameter decreased by 17% and 29% at RPP of 130 and 160 mmHg, respectively. Blockade of P2X1 receptors with NF279 blocked pressure-mediated vasoconstriction, reflecting an attenuated autoregulatory response. The A1 receptor blocker DPCPX did not alter autoregulatory behavior or the response to ATP. Deletion of P2X1 receptors in KO mice significantly blunted autoregulatory responses induced by an increase in RPP, and this response was not further impaired by papillectomy or furosemide. WT control mice exhibited typical RPP-dependent vasoconstriction that was significantly attenuated by papillectomy. These data provide compelling new evidence indicating that tubuloglomerular feedback signals are coupled to autoregulatory preglomerular vasoconstriction through ATP-mediated activation of P2X1 receptors.

Indexed as

MicrocirculationRenal CirculationAdenosine TriphosphateAnimalsDiureticsDose-Response Relationship, DrugFurosemideGene DeletionKidneyMaleMiceMice, KnockoutPerfusionPressureRatsRats, Sprague-Dawley1,3-dipropyl-8-cyclopentylxanthineAdenosine TriphosphateDiureticsFurosemideNF 279Receptors, Purinergic P2Receptors, Purinergic P2XSuraminXanthines

Identifiers

PMID14679185
PMCPMC296993
OpenAlexW1996662293

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.