Evidence map›Paper›PMID 30709839›Full record

Trial reportCancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology2019

Genetic Variation in Steroid and Xenobiotic Metabolizing Pathways and Enterolactone Excretion Before and After Flaxseed Intervention in African American and European American Women.

Huiru Chang, Song Yao, David Tritchler, Meredith A Hullar, Johanna W Lampe, Lilian U Thompson, Susan E McCann

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 20% 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, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Review
  6. 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

7 authors at 2 institutions in 2 countries.

Huiru ChangDepartment of Biostatistics, University at Buffalo, Buffalo, New York.
Song YaoDepartment of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, New York.
David TritchlerDepartment of Biostatistics, University at Buffalo, Buffalo, New York.
Meredith A HullarFred Hutchinson Cancer Research Center, Seattle, Washington.
Johanna W LampeFred Hutchinson Cancer Research Center, Seattle, Washington.
Lilian U ThompsonDepartment of Nutritional Sciences, University of Toronto, Toronto, Canada.
Susan E McCannDepartment of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, New York. susan.mccann@roswellpark.org.
Fred Hutch Cancer Center · USUniversity of Toronto · CA

Funding

Two-Spirit Films in Indigenous Cancer HealthP30CA016056 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI CANDACE S JOHNSON · 1985 to 2026
$116.6M
Flaxseed effects on hormones and lignans: role of race, genes, and gut microbiomeU01CA161809 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI LAMPE, JOHANNA W, MCCANN, SUSAN E · 2012 to 2016
$4.3M
NCI NIH HHS P30 CA016056NCI NIH HHS U01 CA161809
6 · The paper itself

Abstract

backgroundMetabolism and excretion of the phytoestrogen enterolactone (ENL), which has been associated with breast cancer risk, may be affected by variation in steroid hormone and xenobiotic-metabolizing genes.

methodsWe conducted a randomized, crossover flaxseed intervention study in 252 healthy, postmenopausal women [137 European ancestry (EA) and 115 African ancestry (AA)] from western New York. Participants were randomly assigned to maintain usual diet or consume 10 g/day ground flaxseed for 6 weeks. After a 2-month washout period, participants crossed over to the other diet condition for an additional 6 weeks. Urinary ENL excretion was measured by gas chromatography-mass spectrometry and 70 polymorphisms in 29 genes related to steroid hormone and xenobiotic metabolism were genotyped. Mixed additive genetic models were constructed to examine association of genetic variation with urinary ENL excretion at baseline and after the flaxseed intervention.

resultsSNPs in several genes were nominally (

conclusionsVariation in several genes related to steroid hormone metabolism was associated with lignan excretion at baseline and/or after flaxseed intervention among postmenopausal women. IMPACT: These findings may contribute to our understanding of the differences observed in urinary ENL excretion among AA and EA women and thus hormone-related breast cancer risk.

Indexed as

Polymorphism, Single Nucleotide4-ButyrolactoneActin-Related Protein 2-3 ComplexAgedBcl-2-Like Protein 11Black or African AmericanCatechol O-MethyltransferaseCross-Over StudiesCytochrome P-450 CYP1B1Cytochrome P-450 CYP3ADietDNA-Binding ProteinsEstrogen Receptor alphaFemaleFlaxHumans2,3-bis(3'-hydroxybenzyl)butyrolactone4-ButyrolactoneActin-Related Protein 2-3 ComplexARPC1A protein, humanBCL2L11 protein, humanBcl-2-Like Protein 11Catechol O-MethyltransferaseCOMT protein, humanCYP1B1 protein, humanCYP3A5 protein, humanCytochrome P-450 CYP1B1Cytochrome P-450 CYP3ADNA-Binding ProteinsESR1 protein, humanEstrogen Receptor alphaLignansLiver-Specific Organic Anion Transporter 1Sex Hormone-Binding GlobulinSHBG protein, humanSLCO1B1 protein, humanTranscription FactorsZKSCAN5 protein, human

Identifiers

PMID30709839
PMCPMC6363829
OpenAlexW2913991842

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.