Evidence map›Paper›PMID 24578134›Full record

ArticleJournal of the American Society of Nephrology : JASN2014

Sphingosine-1-phosphate evokes unique segment-specific vasoconstriction of the renal microvasculature.

Zhengrong Guan, Sean T Singletary, Anthony K Cook, Janet L Hobbs, Jennifer S Pollock, Edward W Inscho

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Blood-borne sphingosine 1-phosphate maintains vascular resistance, blood pressure, and cardiac function in mice.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
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  5. Article
  6. Review
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  10. Store-operated calcium entry: Pivotal roles in renal physiology and pathophysiology.Experimental biology and medicine (Maywood, N.J.) · 2021
    Review
  11. Article
  12. Rho kinase inhibitors reduce voltage-dependent CaAmerican journal of physiology. Renal physiology · 2019
    Article
  13. Article
  14. Article
  15. The balance between GαMolecular biology of the cell · 2017
    Article
  16. Review
  17. Article
  18. Implication of sphingosin-1-phosphate in cardiovascular regulation.Frontiers in bioscience (Landmark edition) · 2016
    Review
  19. Article
  20. Endothelin and the renal microcirculation.Seminars in nephrology · 2015
    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

6 authors at 2 institutions in 1 country.

Zhengrong GuanDepartments of Physiology and zguan@gru.edu.
Sean T SingletaryDepartments of Physiology and.
Anthony K CookDepartments of Physiology and.
Janet L HobbsExperimental Medicine, Georgia Regents University, Augusta, Georgia.
Jennifer S PollockExperimental Medicine, Georgia Regents University, Augusta, Georgia.
Edward W InschoDepartments of Physiology and.
Augusta University · USGeorgia Regents Medical Center · US

Funding

Renal endothelin receptor-specific function in angiotensin ll-dependent hypertensP01HL095499 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI POLLOCK, DAVID M · 2010 to 2014
$11.1M
Vascular Rho-kinase Signaling in Angiotensin II hypertenP01HL074167 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI WEBB, R CLINTON · 2004 to 2008
$10.5M
TLR4 in the Regulation of Renal Microvascular FunctionR01DK044628 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI INSCHO, EDWARD W · 2000 to 2021
$6.2M
The Inflammatory Cytokines, MCP-1 and TGF-Beta, Mediate Renal Autoregulatory ImpaR01HL098135 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI INSCHO, EDWARD W · 2010 to 2014
$1.8M
PURINERGIC REGULATION OF THE RENAL MICROVASCULATURER29DK044628 · NIDDK · TULANE UNIVERSITY OF LOUISIANA · PI INSCHO, EDWARD W. · 1994 to 1998
–
NHLBI NIH HHS HL074167NHLBI NIH HHS HL095499NHLBI NIH HHS HL098135NHLBI NIH HHS P01 HL074167NHLBI NIH HHS P01 HL095499NHLBI NIH HHS R01 HL098135NIDDK NIH HHS DK44628NIDDK NIH HHS R01 DK044628NIDDK NIH HHS R29 DK044628
6 · The paper itself

Abstract

Sphingosine-1-phosphate (S1P), a bioactive sphingolipid metabolite, has been implicated in regulating vascular tone and participating in chronic and acute kidney injury. However, little is known about the role of S1P in the renal microcirculation. Here, we directly assessed the vasoresponsiveness of preglomerular and postglomerular microvascular segments to exogenous S1P using the in vitro blood-perfused juxtamedullary nephron preparation. Superfusion of S1P (0.001-10 μM) evoked concentration-dependent vasoconstriction in preglomerular microvessels, predominantly afferent arterioles. After administration of 10 μM S1P, the diameter of afferent arterioles decreased to 35%±5% of the control diameter, whereas the diameters of interlobular and arcuate arteries declined to 50%±12% and 68%±6% of the control diameter, respectively. Notably, efferent arterioles did not respond to S1P. The S1P receptor agonists FTY720 and FTY720-phosphate and the specific S1P1 receptor agonist SEW2871 each evoked modest afferent arteriolar vasoconstriction. Conversely, S1P2 receptor inhibition with JTE-013 significantly attenuated S1P-mediated afferent arteriolar vasoconstriction. Moreover, blockade of L-type voltage-dependent calcium channels with diltiazem or nifedipine attenuated S1P-mediated vasoconstriction. Intravenous injection of S1P in anesthetized rats reduced renal blood flow dose dependently. Western blotting and immunofluorescence revealed S1P1 and S1P2 receptor expression in isolated preglomerular microvessels and microvascular smooth muscle cells. These data demonstrate that S1P evokes segmentally distinct preglomerular vasoconstriction via activation of S1P1 and/or S1P2 receptors, partially via L-type voltage-dependent calcium channels. Accordingly, S1P may have a novel function in regulating afferent arteriolar resistance under physiologic conditions.

Indexed as

AnimalsArteriolesLysophospholipidsMaleMicrocirculationNephronsRats, Sprague-DawleyReceptors, LysosphingolipidRenal CirculationSphingosineTissue Culture TechniquesVasoconstrictionLysophospholipidsReceptors, LysosphingolipidSphingosinesphingosine 1-phosphate

Identifiers

PMID24578134
PMCPMC4116055
OpenAlexW2169783450

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.