Evidence map›Paper›PMID 21179439›Full record

ArticlePloS one2010

VKORC1 common variation and bone mineral density in the Third National Health and Nutrition Examination Survey.

Dana C Crawford, Kristin Brown-Gentry, Mark J Rieder

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.8field-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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Association BetweenMedicina (Kaunas, Lithuania) · 2026
    Pooled it
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Measures of exposure impact genetic association studies: an example in vitamin K levels and VKORC1.Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing · 2015
    Article
  7. Article
  8. Pharmacogenomics of warfarin in populations of African descent.British journal of clinical pharmacology · 2013
    Review
  9. Assessment of gene-by-sex interaction effect on bone mineral density.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2012
    Article
  10. Vitamin K and bone.Clinical cases in mineral and bone metabolism : the official journal of the Italian Society of Osteoporosis, Mineral Metabolism, and Skeletal Diseases
    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

3 authors at 2 institutions in 1 country.

Dana C CrawfordCenter for Human Genetics Research, Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, United States of America. crawford@chgr.mc.vanderbilt.edu
Kristin Brown-Gentry
Mark J Rieder
Vanderbilt University · USUniversity of Washington · US

Funding

PHARMACOGENOMICS OF ARRHYTHMIA THERAPYU01HL065962 · NHLBI · VANDERBILT UNIVERSITY · PI RODEN, DAN M · 2001 to 2009
$24.8M
Genetic Factors Influencing Warfarin DoseR01NS053646 · NINDS · UNIVERSITY OF WASHINGTON · PI RIEDER, MARK J · 2006 to 2008
$1.1M
NHLBI NIH HHS U01 HL065962NINDS NIH HHS NS053646NINDS NIH HHS R01 NS053646
6 · The paper itself

Abstract

Osteoporosis, defined by low bone mineral density (BMD), is common among postmenopausal women. The distribution of BMD varies across populations and is shaped by both environmental and genetic factors. Because the candidate gene vitamin K epoxide reductase complex subunit 1 (VKORC1) generates vitamin K quinone, a cofactor for the gamma-carboxylation of bone-related proteins such as osteocalcin, we hypothesized that VKORC1 genetic variants may be associated with BMD and osteoporosis in the general population. To test this hypothesis, we genotyped six VKORC1 SNPs in 7,159 individuals from the Third National Health and Nutrition Examination Survey (NHANES III). NHANES III is a nationally representative sample linked to health and lifestyle variables including BMD, which was measured using dual energy x-ray absorptiometry (DEXA) on four regions of the proximal femur. In adjusted models stratified by race/ethnicity and sex, SNPs rs9923231 and rs9934438 were associated with increased BMD (p=0.039 and 0.024, respectively) while rs8050894 was associated with decreased BMD (p=0.016) among non-Hispanic black males (n=619). VKORC1 rs2884737 was associated with decreased BMD among Mexican-American males (n=795; p=0.004). We then tested for associations between VKORC1 SNPs and osteoporosis, but the results did not mirror the associations observed between VKORC1 and BMD, possibly due to small numbers of cases. This is the first report of VKORC1 common genetic variation associated with BMD, and one of the few reports available that investigate the genetics of BMD and osteoporosis in diverse populations.

Indexed as

AdultBlack or African AmericanBone DensityFemaleGenetic VariationGenotypeHealth SurveysHispanic or LatinoHumansLinkage DisequilibriumMaleMixed Function OxygenasesNutrition SurveysPolymorphism, Single NucleotideVitamin K 2Vitamin K Epoxide ReductasesMixed Function OxygenasesVitamin K 2Vitamin K Epoxide ReductasesVKORC1 protein, human

Identifiers

PMID21179439
PMCPMC3001474
OpenAlexW2047499304

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.