Evidence map›Paper›PMID 22494468›Full record

ArticleBMC medical genetics2012

Non-replication study of a genome-wide association study for hypertension and blood pressure in African Americans.

Srividya Kidambi, Soumitra Ghosh, Jane M Kotchen, Clarence E Grim, Shanthi Krishnaswami, Mary L Kaldunski, Allen W Cowley, Shailendra B Patel, Theodore A Kotchen

Open access · goldAbstract read
In one paragraph

Article in BMC medical genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
2.5field-weighted citation impact, top 11% 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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Genes, environment, and African ancestry in cardiometabolic disorders.Trends in endocrinology and metabolism: TEM · 2023
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Hypertension in African Americans.Current cardiology reports · 2017
    Review
  11. WNK signalling pathways in blood pressure regulation.Cellular and molecular life sciences : CMLS · 2017
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Molecular mechanisms of experimental salt-sensitive hypertension.Journal of the American Heart Association · 2012
    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

9 authors at 1 institution in 1 country.

Srividya KidambiDepartment of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA. skidambi@mcw.edu
Soumitra Ghosh
Jane M Kotchen
Clarence E Grim
Shanthi Krishnaswami
Mary L Kaldunski
Allen W Cowley
Shailendra B Patel
Theodore A Kotchen
Medical College of Wisconsin · US

Funding

ZONISMIDE IN THE TREATMENT OF SEIZURES IN PATIENTSM01RR000058 · NCRR · MEDICAL COLLEGE OF WISCONSIN · PI HYDE, JAMES F · 1985 to 2006
$19.9M
SCOR-MOLECULAR GENTICS OF HYPERTENSIONP50HL054998 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI JACOB, HOWARD J · 1996 to 2005
$8.1M
NCRR NIH HHS 5-M01-RR-00058NHLBI NIH HHS HL07011NHLBI NIH HHS P50-HL-54998
6 · The paper itself

Abstract

backgroundA recent genome wide association study in 1017 African Americans identified several single nucleotide polymorphisms that reached genome-wide significance for systolic blood pressure. We attempted to replicate these findings in an independent sample of 2474 unrelated African Americans in the Milwaukee metropolitan area; 53% were women and 47% were hypertensives.

methodsWe evaluated sixteen top associated SNPs from the above genome wide association study for hypertension as a binary trait or blood pressure as a continuous trait. In addition, we evaluated eight single nucleotide polymorphisms located in two genes (STK-39 and CDH-13) found to be associated with systolic and diastolic blood pressures by other genome wide association studies in European and Amish populations. TaqMan MGB-based chemistry with fluorescent probes was used for genotyping. We had an adequate sample size (80% power) to detect an effect size of 1.2-2.0 for all the single nucleotide polymorphisms for hypertension as a binary trait, and 1% variance in blood pressure as a continuous trait. Quantitative trait analyses were performed both by excluding and also by including subjects on anti-hypertensive therapy (after adjustments were made for anti-hypertensive medications).

resultsFor all 24 SNPs, no statistically significant differences were noted in the minor allele frequencies between cases and controls. One SNP (rs2146204) showed borderline association (p = 0.006) with hypertension status using recessive model and systolic blood pressure (p = 0.02), but was not significant after adjusting for multiple comparisons. In quantitative trait analyses, among normotensives only, rs12748299 was associated with SBP (p = 0.002). In addition, several nominally significant associations were noted with SBP and DBP among normotensives but none were statistically significant.

conclusionsThis study highlights the importance of replication to confirm the validity of genome wide association study results.

Indexed as

Genome-Wide Association StudyBlack or African AmericanBlood PressureCadherinsCase-Control StudiesFemaleFluorescent DyesGene FrequencyGenotypeHumansHypertensionMalePolymorphism, Single NucleotideProtein Serine-Threonine KinasesQuantitative Trait LociRegression AnalysisCadherinsFluorescent DyesH-cadherinProtein Serine-Threonine KinasesSTK39 protein, human

Identifiers

PMID22494468
PMCPMC3349540
OpenAlexW1964369288

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.