Evidence map›Paper›PMID 19845958›Full record

ArticleNutrition journal2009

Associations between dietary habits and body mass index with gut microbiota composition and fecal water genotoxicity: an observational study in African American and Caucasian American volunteers.

Volker Mai, Quintece M McCrary, Rashmi Sinha, Michael Glei

Open access · goldAbstract readComparative Study
In one paragraph

Article in Nutrition journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 3 pooled it
4.4field-weighted citation impact, top 5% 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

77 citing papers in PubMed, 3 syntheses or guidelines pooled it, 176 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Gut microbiota phenotypes of obesity.NPJ biofilms and microbiomes
    Pooled it
  4. Trial
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  7. Dual-pathway detoxification byFood chemistry: X · 2026
    Article
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  11. The gut microbiome: a core regulator of metabolism.The Journal of endocrinology · 2023
    Review
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17 more citing papers are in PubMed but not listed here.

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

4 authors at 4 institutions in 2 countries.

Volker MaiMicrobiology and Cell Science, Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA. vmai@ufl.edu
Quintece M McCrary
Rashmi Sinha
Michael Glei
Friedrich Schiller University Jena · DENational Cancer Institute · USUniversity of Florida · USUniversity of Maryland Eastern Shore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAfrican Americans (AA) suffer from an increased incidence and mortality of colorectal cancer (CRC). Environmental exposures including dietary habits likely contribute to a high burden of CRC, however, data on the dietary habits of AA is sparse. Diet might change the composition and the activities of the intestinal microbiota, in turn affecting fecal genotoxicity/mutagenicity that is thought to be associated with carcinogenesis.

methodsWe assessed dietary habits by food frequency questionnaire and by food records in 52 AA and 46 CA residents of the Eastern Shore of MD. Fecal microbiota composition was determined using 16S rRNA based methods and fecal genotoxicity measured using the Comet assay.

resultsAA reported an increased intake of heterocyclic amines and a decreased dietary intake of vitamins including vitamin D (p<0.05) that correlated with differences in fecal microbiota composition but not fecal genotoxicity. Intake of dietary fiber, calcium, total fat and heterocyclic amines correlated with differences in microbiota composition. Total bacterial counts/g of stool and raw counts of Bacteroides were increased in AA. In contrast to a previous study, BMI was not associated with proportions of Bacteroides.

conclusionDietary habits of African Americans, including increased HCA intake and decreased vitamin D intake might at least partially contribute to CRC through modifications of gut microbiota composition that result in changes of the intestinal milieu.

Indexed as

ObesityAdultBacteriaBlack or African AmericanCell SurvivalColonic NeoplasmsDietDNA DamageFecesFeeding BehaviorFemaleHT29 CellsHumansIntestinesMaleMarylandMutagens

Identifiers

PMID19845958
PMCPMC2773807
OpenAlexW2120156188

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.