Evidence map›Paper›PMID 23104668›Full record

ArticleCancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology2013

Urinary concentrations of estrogens and estrogen metabolites and smoking in caucasian women.

Fangyi Gu, Neil E Caporaso, Catherine Schairer, Renee T Fortner, Xia Xu, Susan E Hankinson, A Heather Eliassen, Regina G Ziegler

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Systematic and meta-analytic review of research examining the impact of menstrual cycle phase and ovarian hormones on smoking and cessation.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2015
    Pooled it
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  8. Commonalities in Metabolic Reprogramming between Tobacco Use and Oral Cancer.International journal of environmental research and public health · 2022
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  16. Estrogen Metabolism in Premenopausal Women Is Related to Early Life Body Fatness.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2018
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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

8 authors at 5 institutions in 1 country.

Fangyi GuNational Cancer Institute, 6120 Executive Blvd, Room 7110, Bethesda, MD 20892, USA. guf@mail.nih.gov
Neil E Caporaso
Catherine Schairer
Renee T Fortner
Xia Xu
Susan E Hankinson
A Heather Eliassen
Regina G Ziegler
Brigham and Women's Hospital · USHarvard University · USFrederick National Laboratory for Cancer Research · USNational Cancer Institute · USUniversity of Massachusetts Amherst · US

Funding

Risk Factors for Breast Cancer in Younger NursesR01CA050385 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ELIASSEN, A. HEATHER, WILLETT, WALTER C. · 1989 to 2019
$32.3M
Training Program in Cancer EpidemiologyT32CA009001 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI A. Heather Eliassen, Meir Stampfer · 1985 to 2026
$17.3M
Premonopausal Hormone Levels and Risk of Breast CancerR01CA067262 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI HANKINSON, SUSAN E · 2002 to 2011
$11.9M
Pharmacogenetic StudiesZIACP005804 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI SAVAGE, SHARON A. · 2009 to 2025
$11.1M
PREMENOPAUSAL HORMONE LEVELS AND RISK OF BREAST CANCERU01CA067262 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI WILLETT, WALTER C. · 1996 to 2001
$1.1M
CLINICAL/IMMUNOLOGIC/GENETIC ANALYSES OF AUTOIMMUNE LYMPHOPROLIFERATIVE SYNDROMEZ01AI000732 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI RAO, VEMULKONDA · 1995 to 2008
$1.1M
CCR NIH HHS HHSN261200800001CIntramural NIH HHS Z99 CA999999NCI NIH HHS CA50385NCI NIH HHS CA67262NCI NIH HHS HHSN261200800001ENCI NIH HHS R01 CA050385NCI NIH HHS R01 CA067262NCI NIH HHS T32 CA009001NCI NIH HHS T32 CA09001NCI NIH HHS U01 CA067262NCI NIH HHS Y99 CA999999
6 · The paper itself

Abstract

backgroundSmoking has been hypothesized to decrease biosynthesis of parent estrogens (estradiol and estrone) and increase their metabolism by 2-hydroxylation. However, comprehensive studies of smoking and estrogen metabolism by 2-, 4-, or 16-hydroxylation are sparse.

methodsFifteen urinary estrogens and estrogen metabolites (jointly called EM) were measured by liquid chromatography/tandem mass spectrometry (LC/MS-MS) in luteal phase urine samples collected during 1996 to 1999 from 603 premenopausal women in the Nurses' Health Study II (NHSII; 35 current, 140 former, and 428 never smokers). We calculated geometric means and percentage differences of individual EM (pmol/mg creatinine), metabolic pathway groups, and pathway ratios, by smoking status and cigarettes per day (CPD).

resultsTotal EM and parent estrogens were nonsignificantly lower in current compared with never smokers, with estradiol significant (P(multivariate) = 0.02). We observed nonsignificantly lower 16-pathway EM (P = 0.08) and higher 4-pathway EM (P = 0.25) and similar 2-pathway EM in current versus never smokers. EM measures among former smokers were similar to never smokers. Increasing CPD was significantly associated with lower 16-pathway EM (P-trend = 0.04) and higher 4-pathway EM (P-trend = 0.05). Increasing CPD was significantly positively associated with the ratios of 2- and 4-pathway to parent estrogens (P-trend = 0.01 and 0.002), 2- and 4-pathway to 16-pathway (P-trend = 0.02 and 0.003), and catechols to methylated catechols (P-trend = 0.02).

conclusionsAs hypothesized, we observed lower urinary levels of total EM and parent estrogens in active smokers. Our results also suggest smoking is associated with altered estrogen metabolism, specifically increased 2- and 4-hydroxylation, decreased 16-hydroxylation, and decreased catechol methylation. IMPACT: Our study suggests how smoking might influence estrogen-related cancers and conditions.

Indexed as

AdultAge FactorsCase-Control StudiesChromatography, LiquidConfidence IntervalsEstrogensEstroneFemaleHumansLuteal PhaseMiddle AgedPremenopauseReference ValuesRetrospective StudiesRisk AssessmentSmokingEstrogensEstrone

Identifiers

PMID23104668
PMCPMC3643002
OpenAlexW2111923573

What OpenQuestion holds

Textmetadata
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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.