Evidence map›Paper›PMID 23562302›Full record

ArticleOphthalmology2013

Investigation of genetic variation in scavenger receptor class B, member 1 (SCARB1) and association with serum carotenoids.

Gareth J McKay, Edward Loane, John M Nolan, Christopher C Patterson, Kristin J Meyers, Julie A Mares, Ekaterina Yonova-Doing, Christopher J Hammond, Stephen Beatty, Giuliana Silvestri

Abstract read
In one paragraph

Article in Ophthalmology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.5field-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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. The molecular aspects of absorption and metabolism of carotenoids and retinoids in vertebrates.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2020
    Review
  9. Imaging lutein and zeaxanthin in the human retina with confocal resonance Raman microscopy.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Review
  12. Review
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  14. RPE65 has an additional function as the lutein toProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
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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

10 authors at 5 institutions in 3 countries.

Gareth J McKayCentre for Public Health, Royal Victoria Hospital, Queen's University Belfast, Belfast, Northern Ireland. g.j.mckay@qub.ac.uk
Edward Loane
John M Nolan
Christopher C Patterson
Kristin J Meyers
Julie A Mares
Ekaterina Yonova-Doing
Christopher J Hammond
Stephen Beatty
Giuliana Silvestri
King's College London · GBRoyal Victoria Hospital · GBUniversity of Wisconsin–Madison · USWaterford Institute of Technology · IERoyal Victoria Eye and Ear Hospital · IE

Funding

CAROTENOIDS &AGE-RELATED EYE DISEASE IN WOMEN'S HEALTHU10EY013018 · NEI · UNIVERSITY OF WISCONSIN MADISON · PI MARES, JULIE A · 2000 to 2004
$4.4M
Diet and Lifestyle Factors Reducing Risk for Age-Related Eye DiseaseR01EY016886 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI IYENGAR, SUDHA K, MARES, JULIE A · 2007 to 2013
$2.7M
International Collaborative Twin Study of Refractive and Glaucoma EndophenotypesR01EY018246 · NEI · DUKE UNIVERSITY · PI YOUNG, TERRI LOIS · 2007 to 2009
$1.8M
Department of Health SRF/01/010NEI NIH HHS 1R01EY018246NEI NIH HHS EY013018NEI NIH HHS EY016886NEI NIH HHS R01 EY016886NEI NIH HHS R01 EY018246NEI NIH HHS U10 EY013018Wellcome Trust
6 · The paper itself

Abstract

objectiveTo investigate association of scavenger receptor class B, member 1 (SCARB1) genetic variants with serum carotenoid levels of lutein (L) and zeaxanthin (Z) and macular pigment optical density (MPOD).

designA cross-sectional study of healthy adults aged 20 to 70.

participantsWe recruited 302 participants after local advertisement.

methodsWe measured MPOD by customized heterochromatic flicker photometry. Fasting blood samples were taken for serum L and Z measurement by high-performance liquid chromatography and lipoprotein analysis by spectrophotometric assay. Forty-seven single nucleotide polymorphisms (SNPs) across SCARB1 were genotyped using Sequenom technology. Association analyses were performed using PLINK to compare allele and haplotype means, with adjustment for potential confounding and correction for multiple comparisons by permutation testing. Replication analysis was performed in the TwinsUK and Carotenoids in Age-Related Eye Disease Study (CAREDS) cohorts.

main outcome measuresOdds ratios for MPOD area, serum L and Z concentrations associated with genetic variations in SCARB1 and interactions between SCARB1 and gender.

resultsAfter multiple regression analysis with adjustment for age, body mass index, gender, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglycerides, smoking, and dietary L and Z levels, 5 SNPs were significantly associated with serum L concentration and 1 SNP with MPOD (P<0.01). Only the association between rs11057841 and serum L withstood correction for multiple comparisons by permutation testing (P<0.01) and replicated in the TwinsUK cohort (P = 0.014). Independent replication was also observed in the CAREDS cohort with rs10846744 (P = 2×10(-4)), an SNP in high linkage disequilibrium with rs11057841 (r(2) = 0.93). No interactions by gender were found. Haplotype analysis revealed no stronger association than obtained with single SNP analyses.

conclusionsOur study has identified association between rs11057841 and serum L concentration (24% increase per T allele) in healthy subjects, independent of potential confounding factors. Our data supports further evaluation of the role for SCARB1 in the transport of macular pigment and the possible modulation of age-related macular degeneration risk through combating the effects of oxidative stress within the retina. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosures may be found after the references.

Indexed as

Genetic VariationAdultAgedChromatography, High Pressure LiquidCross-Sectional StudiesFemaleGenotyping TechniquesHumansLipoproteinsLuteinMaleMiddle AgedPhotometryPolymorphism, Single NucleotideRetinaScavenger Receptors, Class BLipoproteinsLuteinSCARB1 protein, humanScavenger Receptors, Class BXanthophyllsZeaxanthins

Identifiers

PMID23562302
PMCPMC3946979
OpenAlexW1977635050

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Registered trials

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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.