Evidence map›Paper›PMID 21562341›Full record

Trial reportCirculation. Cardiovascular genetics2011

Common variants in epithelial sodium channel genes contribute to salt sensitivity of blood pressure: The GenSalt study.

Qi Zhao, Dongfeng Gu, James E Hixson, De-Pei Liu, Dabeeru C Rao, Cashell E Jaquish, Tanika N Kelly, Fanghong Lu, Jixiang Ma, Jianjun Mu and 6 more

Registry-linked trialOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Circulation. Cardiovascular genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00721721 (Genetic Epidemiology Network of Salt Sensitivity), which is not on this map. Cited by 34 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 3% 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.

NCT00721721 phase3completednot on this map

Genetic Epidemiology Network of Salt Sensitivity

TypeinterventionalSponsorNational Heart, Lung, and Blood Institute (NHLBI)Ran2003 to 2009Enrolled1,906ConditionsBlood PressureArmsLow Sodium Diet, High Sodium Diet, Potassium Supplementation
3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Genetic Risk for Hypertension Increases the Effect of Salt Intake on the Risk of Incident CKD.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Article
  9. Review
  10. Epithelial NaComprehensive Physiology · 2024
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Genetic susceptibility to salt-sensitive hypertension in a Han Chinese population: a validation study of candidate genes.Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Article
  19. Article
  20. Article
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

16 authors at 6 institutions in 2 countries.

Qi ZhaoDepartment of Epidemiology, Tulane University School of Medicine, New Orleans, LA, USA.
Dongfeng Gu
James E Hixson
De-Pei Liu
Dabeeru C Rao
Cashell E Jaquish
Tanika N Kelly
Fanghong Lu
Jixiang Ma
Jianjun Mu
Lawrence C Shimmin
Jichun Chen
Hao Mei
L Lee Hamm
Jiang He
Genetic Epidemiology Network of Salt Sensitivity Collaborative Research Group
Tulane University · USChinese Academy of Medical Sciences & Peking Union Medical College · CNThe University of Texas Health Science Center at Houston · USNational Heart Lung and Blood Institute · USShandong Center for Disease Control and Prevention · CNWashington University in St. Louis · US

Funding

Genetic Epidemiology of Blood Pressure InterventionU01HL072507 · NHLBI · TULANE UNIVERSITY OF LOUISIANA · PI HE, JIANG · 2002 to 2008
$7.6M
Family-Based Genome-wide Association Study for Salt-Sensitivity of Blood PressureR01HL090682 · NHLBI · TULANE UNIVERSITY OF LOUISIANA · PI HE, JIANG · 2008 to 2011
$2.8M
Sodium Sensitivity and Risk of HypertensionR01HL087263 · NHLBI · TULANE UNIVERSITY OF LOUISIANA · PI HE, JIANG · 2007 to 2011
$2.8M
NHLBI NIH HHS R01 HL087263NHLBI NIH HHS R01HL087263NHLBI NIH HHS R01 HL090682NHLBI NIH HHS R01HL090682NHLBI NIH HHS U01 HL072507NHLBI NIH HHS U01HL072507
6 · The paper itself

Abstract

backgroundRare mutations of the epithelial sodium channel (ENaC) lead to mendelian forms of salt-sensitive hypertension or salt-wasting hypotension. We aimed to examine the association between common variants in the ENaC genes and salt sensitivity of blood pressure (BP). METHODS AND

resultsA total of 1906 Han Chinese participated in the Genetic Epidemiology Network of Salt Sensitivity (GenSalt) study, which includes a 7-day low-sodium intake (51.3 mmol sodium/d) followed by a 7-day high-sodium intake (307.8 mmol sodium/d). Nine BP measurements were obtained at baseline and each intervention period using a random-zero sphygmomanometer. Single-nucleotide polymorphisms, both tagging and functional, from the 3 ENaC subunits, α, β, and γ (SCNN1A, SCNN1B, and SCNN1G), were genotyped. Multiple common single-nucleotide polymorphisms in SCNN1G were significantly associated with BP response to low-sodium intervention (rs4073930, P=1.7×10(-5); rs4073291, P=1.1×10(-5); rs7404408, P=1.9×10(-5); rs5735, P=3.0×10(-4); rs4299163, P=0.004; and rs4499238, P=0.002) even after correcting for multiple testing. For example, under an additive model, the minor allele G of SNP rs4073291 was associated with 1.33 mm Hg lower systolic BP reduction during low-sodium intervention.

conclusionsThis large dietary sodium intervention study indicates that common variants of ENaC subunits may contribute to the variation of BP response to dietary sodium intake. Future studies are warranted to confirm these findings in an independent population and to identify functional variants for salt sensitivity. CLINICAL

trial registrationURL: http://www.clinicaltrials.gov. Unique identifier: NCT00721721.

Indexed as

Genetic VariationAsian PeopleBlood PressureEpithelial Sodium ChannelsGenotypeHumansHypertensionHypotensionPolymorphism, Single NucleotideProtein SubunitsSaltsSodium, DietaryEpithelial Sodium ChannelsProtein SubunitsSaltsSodium, Dietary

Identifiers

PMID21562341
PMCPMC3157544
OpenAlexW2131876628

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.