Evidence map›Paper›PMID 20695797›Full record

Trial reportThe Journal of infectious diseases2010

Intestinal antimicrobial gene expression: impact of micronutrients in malnourished adults during a randomized trial.

Winnie Dhaliwal, Tamara Shawa, Moriam Khanam, Poonam Jagatiya, Michelo Simuyandi, Namwiinga Ndulo, Charles L Bevins, Ian R Sanderson, Paul Kelly

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of infectious diseases, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

11 citing papers in PubMed, 12 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
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

9 authors at 4 institutions in 3 countries.

Winnie DhaliwalInstitute of Cell and Molecular Science, Barts and The London School of Medicine, Queen Mary University of London, United Kingdom.
Tamara Shawa
Moriam Khanam
Poonam Jagatiya
Michelo Simuyandi
Namwiinga Ndulo
Charles L Bevins
Ian R Sanderson
Paul Kelly
Queen Mary University of London · GBUniversity of Zambia · ZMTropical Gastroenterology & Nutrition group · ZMUniversity of California, Davis · US

Funding

ROLE OF DIETARY CONSTITUENTS ON GENE EXPRESSION IN INTESTINAL EPITHELIUMP30DK040561 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Elizabeth Austen Lawson, Takara Leah Stanley · 1994 to 2026
$31.6M
Novel Defensins in Human Epithelial TissuesR37AI032738 · NIAID · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BEVINS, CHARLES L · 2015 to 2022
$3.1M
NIAID NIH HHS R37 AI032738NIDDK NIH HHS P30 DK040561Wellcome Trust 067948
6 · The paper itself

Abstract

backgroundBecause both micronutrients and antimicrobial peptides protect against diarrhea, we looked for an effect on intestinal antimicrobial peptide gene expression during a randomized controlled trial of multiple micronutrient (MM) supplementation.

methodsConsenting adults (n=287) in Lusaka, Zambia, were randomized to receive a daily MM supplement or placebo and were followed up for 3.3 years, with a crossover after 2 years. Intestinal biopsy samples were obtained at annual intervals, and messenger RNA of the intestinal antimicrobial peptides human alpha defensin (HD) 5, HD6, human beta-defensin (hBD) 1, hBD2, and LL-37 were quantified by real-time reverse-transcriptase polymerase chain reaction. Samples were also obtained during diarrhea episodes and after convalescence.

resultsThere was no effect overall of treatment allocation. However, in malnourished adults (body mass index < or =18.5), HD5 mRNA was increased by 0.8 log transcripts/microg total RNA in MM recipients, compared with HD5 mRNA in placebo recipients (P=.007). During diarrhea, HD5 expression was reduced by 0.8 log transcripts in placebo recipients (P=.02) but was not reduced in MM recipients, nor was it reduced after the crossover. Correlations between HD5 and nutritional status were found that were sex-specific but not explained by serum leptin or adiponectin concentrations.

conclusionsMicronutrient supplementation was associated with up-regulation of HD5 only in malnourished adults. Interactions between antimicrobial gene expression and nutritional status may help to explain the increased risk of infection in individuals with malnutrition.

Indexed as

Gene ExpressionAdultAntimicrobial Cationic PeptidesBiopsyCross-Over StudiesFemaleFollow-Up StudiesGastrointestinal TractGene Expression ProfilingHumansMaleMicronutrientsMiddle AgedPlacebosRNA, MessengerTranscriptional ActivationAntimicrobial Cationic PeptidesMicronutrientsPlacebosRNA, Messenger

Identifiers

PMID20695797
PMCPMC3374852
OpenAlexW2137638665

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.