Evidence map›Paper›PMID 26135350›Full record

Observational studyThe American journal of clinical nutrition2015

Dietary polyamine intake and colorectal cancer risk in postmenopausal women.

Ashley J Vargas, Erin L Ashbeck, Betsy C Wertheim, Robert B Wallace, Marian L Neuhouser, Cynthia A Thomson, Patricia A Thompson

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in The American journal of clinical nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

25 citing papers in PubMed, 48 citations in OpenAlex.

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  15. Review
  16. Health-Promoting Effects of Dietary Polyamines.Medical sciences (Basel, Switzerland) · 2021
    Review
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  18. 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 4 institutions in 3 countries.

Ashley J VargasDepartments of Nutritional Sciences, ashley.vargas@nih.gov.ORCID http://orcid.org/0000-0002-4789-0675
Erin L AshbeckThe University of Arizona Cancer Center, Tucson, AZ;
Betsy C WertheimThe University of Arizona Cancer Center, Tucson, AZ;
Robert B WallaceUniversity of Iowa College of Public Health, University of Iowa, Iowa City, IA; and.
Marian L NeuhouserCancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle, WA.
Cynthia A ThomsonDepartments of Nutritional Sciences, College of Public Health, The University of Arizona, Tucson, AZ; The University of Arizona Cancer Center, Tucson, AZ;
Patricia A ThompsonDepartments of Nutritional Sciences, Molecular and Cellular Biology, and The University of Arizona Cancer Center, Tucson, AZ;
University of Arizona · USFred Hutch Cancer Center · USHospital Vargas · VEUniversity of Iowa · US

Funding

Translational Bioimaging Core Shared ResourceP30CA015704 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI Eric Collisson · 1985 to 2026
$296.4M
Pulmonary Toxicology Facility CoreP30ES005605 · NIEHS · UNIVERSITY OF IOWA · PI Jong Sung Kim · 1990 to 2026
$40.5M
NCI NIH HHS P30 CA015704NIEHS NIH HHS P30 ES005605PHS HHS HHSN268201100001CPHS HHS HHSN268201100002CPHS HHS HHSN268201100003CPHS HHS HHSN268201100004CPHS HHS HHSN268201100046CPHS HHS HHSN271201100004C
6 · The paper itself

Abstract

backgroundPutrescine, spermidine, and spermine (i.e., polyamines) are small cationic amines synthesized by cells or acquired from the diet or gut bacteria. Polyamines are required for both normal and colorectal cancer (CRC) cell growth.

objectiveWe investigated the association between dietary polyamines and risk of CRC incidence and mortality.

designThe study was a prospective analysis in 87,602 postmenopausal women in the Women's Health Initiative Observational Study. Multivariate Cox regression was used to calculate HRs and 95% CIs.

resultsTotal dietary polyamine intake (mean ± SD: 289.2 ± 127.4 μmol/d) was not positively associated with CRC in fully adjusted models. Instead, intake ≥179.67 μmol/d was associated with reduced risk of CRC [HR (95% CI): 0.82 (0.68, 1.00), 0.81 (0.66, 0.99), 0.91 (0.74, 1.12), and 0.80 (0.62, 1.02) for quintiles 2-5, respectively, compared with quintile 1]. Reduced risk was not significant across all quintiles. Polyamines were not significantly associated with CRC-specific mortality in fully adjusted models. When stratified by risk factors for CRC, only body mass index (BMI) and fiber intake significantly modified the association between polyamine intake and CRC. In women with BMI (in kg/m²) ≤25 or fiber consumption above the median, polyamine intake was associated with significantly lower risk of CRC.

conclusionsNo positive association between dietary polyamines and CRC or CRC-specific mortality risk in women was observed. Instead, a protective effect of dietary polyamines was suggested in women with some CRC risk-lowering behaviors in particular. These results are consistent with emerging evidence that exogenous polyamines may be beneficial in colon health and warrant additional study.

Indexed as

AgingDietNutrition PolicyPatient ComplianceAgedBody Mass IndexCohort StudiesColorectal NeoplasmsDietary FiberFemaleHumansIncidenceLongitudinal StudiesMiddle AgedOverweightPolyaminesDietary FiberPolyaminescolon cancercolorectal cancerdietdietary polyaminesdietary putrescinepolyaminesputrescineWomen's Health Initiative

Identifiers

PMID26135350
PMCPMC4515861
OpenAlexW2207613860

What OpenQuestion holds

Textmetadata
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.