Evidence map›Paper›PMID 21478479›Full record

ArticleAmerican journal of physiology. Renal physiology2011

A novel lipid natriuretic factor in the renal medulla: sphingosine-1-phosphate.

Qing Zhu, Min Xia, Zhengchao Wang, Pin-Lan Li, Ningjun Li

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2011. 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
1.2field-weighted citation impact, top 21% 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, 41 citations in OpenAlex.

  1. Review
  2. Article
  3. Sphingolipid signaling in kidney diseases.American journal of physiology. Renal physiology · 2025
    Review
  4. Review
  5. Sphingolipids and Chronic Kidney Disease.Journal of clinical medicine · 2024
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Identification ofJournal of the American Society of Nephrology : JASN · 2019
    Article
  11. Sphingosine-1-phosphate signaling in blood pressure regulation.American journal of physiology. Renal physiology · 2019
    Review
  12. The Functional Requirement for CD69 in Establishment of Resident Memory CD8Journal of immunology (Baltimore, Md. : 1950) · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Infusion of Valproic Acid Into the Renal Medulla Activates Stem Cell Population and Attenuates Salt-Sensitive Hypertension in Dahl S Rats.Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology · 2017
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Qing ZhuDept. of Pharmacology and Toxicology, Medical College of Virginia Campus, Virginia Commonwealth University, PO Box 980613, Richmond, VA 23298, USA.
Min Xia
Zhengchao Wang
Pin-Lan Li
Ningjun Li
Virginia Commonwealth University Medical Center · US

Funding

Hypertension and glomerular injury in hyperhomocysteinemia - role of inflammatory exosomesR01DK054927 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI LI, PINLAN · 1998 to 2023
$6.7M
Renal Medullary HIF Prolyl Hydroxylases and Salt Sensitivity of Blood PressureR01HL089563 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI LI, NINGJUN · 2007 to 2016
$3.4M
Renal Medullary Stem Cell Niche in Salt Sensitive HypertensionR01HL106042 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI LI, NINGJUN · 2011 to 2014
$1.5M
NHLBI NIH HHS HL89563NHLBI NIH HHS R01 HL089563NHLBI NIH HHS R01 HL106042NIDDK NIH HHS DK54927
6 · The paper itself

Abstract

Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite formed by phosphorylation of sphingosine. S1P has been indicated to play a significant role in the cardiovascular system. It has been shown that the enzymes for S1P metabolism are expressed in the kidneys. The present study characterized the expression of S1P receptors in the kidneys and determined the role of S1P in the control of renal hemodynamics and sodium excretion. Real-time RT-PCR analyses showed that S1P receptors S1P1, S1P2, and S1P3 were most abundantly expressed in the renal medulla. Immunohistochemistry revealed that all three types of S1P receptors were mainly located in collecting ducts. Intramedullary infusion of FTY720, an S1P agonist, produced a dramatic increase in sodium excretion by twofold and a small but significant increase in medullary blood flow (16%). Administration of W146, an S1P1 antagonist, into the renal medulla blocked the effect of FTY720 and decreased the sodium excretion by 37% when infused alone. The antagonists of S1P2 and S1P3 had no effect. FTY720 produced additive natriuretic effects in combination with different sodium transporter inhibitors except amiloride, an epithelial sodium channel blocker. In the presence of nitric oxide synthase inhibitor l-NAME, FTY720 still increased sodium excretion. These data suggest that S1P produces natriuretic effects via activation of S1P1 in the renal medulla and this natriuretic effect may be through inhibition of epithelial sodium channel, which is nitric oxide independent. It is concluded that S1P is a novel diuretic factor in the renal medulla and may be an important regulator of sodium homeostasis.

Indexed as

AnimalsEnzyme InhibitorsFingolimod HydrochlorideImmunohistochemistryKidney CortexKidney MedullaLipidsLysophospholipidsMaleNatriuretic AgentsNG-Nitroarginine Methyl EsterPropylene GlycolsRatsRats, Sprague-DawleyReceptors, LysosphingolipidRenal CirculationEnzyme InhibitorsFingolimod HydrochlorideLipidsLysophospholipidsNatriuretic AgentsNG-Nitroarginine Methyl EsterPropylene GlycolsReceptors, LysosphingolipidRNA, MessengerSodiumSphingosinesphingosine 1-phosphate

Identifiers

PMID21478479
PMCPMC3129878
OpenAlexW2171426756

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.