Evidence map›Paper›PMID 19075100›Full record

ArticleHypertension (Dallas, Tex. : 1979)2009

Salt intake augments hypotensive effects of transient receptor potential vanilloid 4: functional significance and implication.

Feng Gao, Dexin Sui, R Michael Garavito, R Mark Worden, Donna H Wang

Open access · bronzeAbstract read
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2009. 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
1.9field-weighted citation impact, top 16% 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, 59 citations in OpenAlex.

  1. Article
  2. The machinery of healthy vasodilatation: an overview.Pflugers Archiv : European journal of physiology · 2025
    Review
  3. Mechanosensitive ion channels and inflammation: key links in cellular signal transduction.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. TRPV4: A Physio and Pathophysiologically Significant Ion Channel.International journal of molecular sciences · 2020
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Gastrointestinal-Renal Axis: Role in the Regulation of Blood Pressure.Journal of the American Heart Association · 2017
    Review
  17. Anandamide and its metabolites: what are their roles in the kidney?Frontiers in bioscience (Scholar edition) · 2016
    Review
  18. Review
  19. Review
  20. Role of TRP channels in the cardiovascular system.American journal of physiology. Heart and circulatory physiology · 2015
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Feng GaoDepartment of Medicine, Michigan State University, East Lansing, MI 48824, USA.
Dexin Sui
R Michael Garavito
R Mark Worden
Donna H Wang
Michigan State University · US

Funding

Vanilloid Sensitive Sensory Nerves and Salt SensitivityR01HL073287 · NHLBI · MICHIGAN STATE UNIVERSITY · PI WANG, DONNA H · 2004 to 2011
$2.7M
Molecular Sensing of Sodium Homeostasis: Anandamide RoleR01DK067620 · NIDDK · MICHIGAN STATE UNIVERSITY · PI WANG, DONNA H · 2005 to 2009
$1.4M
RENAL ANGIOTENSIN II RECEPTOR AND SODIUM INTAKER01HL057853 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI WANG, DONNA H · 1998 to 2007
$1.1M
NHLBI NIH HHS HL-57853NHLBI NIH HHS HL-73287NHLBI NIH HHS R01 HL057853NHLBI NIH HHS R01 HL073287NIDDK NIH HHS DK67620NIDDK NIH HHS R01 DK067620
6 · The paper itself

Abstract

To test the hypothesis that activation of the transient receptor potential vanilloid 4 (TRPV4) channel conveys a hypotensive effect that is enhanced during salt load, male Wistar rats fed a normal-sodium (0.5%) or high-sodium (HS; 4%) diet for 3 weeks were given 4 alpha-phorbol 12,13-didecanoate (4 alpha-PDD), a specific TRPV4 activator, in the presence or absence of capsazepine, a selective TRPV1 blocker, ruthenium red, a TRPV4 blocker, or TRPV4 small hairpin RNA that selectively knockdowns TRPV4. 4 alpha-PDD (1, 2.5, or 5 mg/kg IV) dose-dependently decreased mean arterial pressure (P<0.05). HS enhanced 4 alpha-PDD-induced depressor effects as well as 4 alpha-PDD-mediated release of calcitonin gene-related peptide and substance P (P<0.001). Ruthenium red markedly blunted (P<0.001), whereas capsazepine slightly attenuated (P<0.05) 4 alpha-PDD-induced depressor effects in HS and normal-sodium diet rats. Ruthenium red alone increased baseline mean arterial pressure in both HS and normal-sodium diet rats with a greater magnitude in the former (P<0.05). Western blot analysis showed that HS increased TRPV4 expression in dorsal root ganglia and mesenteric arteries (P<0.05) but not the renal cortex and medulla. Gene-silencing approach revealed that TRPV4 small hairpin RNA downregulated TRPV4 expression leading to blunted 4 alpha-PDD-induced hypotension (P<0.05). Thus, TRPV4 activation decreases blood pressure in rats given a normal-sodium diet. HS enhances TRPV4 expression in sensory nerves/mesenteric arteries and TRPV4-mediated depressor effects and calcitonin gene-related peptide/substance P release such that HS causes a greater increase in blood pressure when TRPV4 is blocked. Our data indicate that TRPV4 activation may constitute a compensatory mechanism in preventing salt-induced increases in blood pressure.

Indexed as

AnimalsBlood PressureCalcitonin Gene-Related PeptideCapsaicinDisease Models, AnimalDose-Response Relationship, DrugGanglia, SpinalHypertensionHypotensionKidneyMaleMesenteric ArteriesPhorbol EstersRatsRats, WistarRuthenium RedCalcitonin Gene-Related PeptideCapsaicincapsazepinephorbol-12,13-didecanoatePhorbol EstersRuthenium RedSodium Chloride, DietarySubstance PTrpv1 protein, ratTrpv4 protein, ratTRPV Cation Channels

Identifiers

PMID19075100
PMCPMC2729143
OpenAlexW2127797663

What OpenQuestion holds

Textmetadata
LicenceTDM
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.