Evidence map›Paper›PMID 16619196›Full record

ArticleThe Journal of infectious diseases2006

Reduced gene expression of intestinal alpha-defensins predicts diarrhea in a cohort of African adults.

Paul Kelly, Mona Bajaj-Elliott, Max Katubulushi, Isaac Zulu, Richard Poulsom, Roger A Feldman, Charles L Bevins, Winnie Dhaliwal

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Functional characterization of novel anti-DEFA5 monoclonal antibody clones 1A8 and 4F5 in inflammatory bowel disease colitis tissues.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Homeostasis of the gut barrier and potential biomarkers.American journal of physiology. Gastrointestinal and liver physiology · 2017
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Role of the intestinal barrier in inflammatory bowel disease.World journal of gastroenterology · 2008
    Review
  18. 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

8 authors at 5 institutions in 4 countries.

Paul KellyCentre for Adult and Paediatric Gastroenterology, Institute of Cell and Molecular Science, Barts and The London School of Medicine, Department of Infectious and Tropical Diseases, United Kingdom. guts@coppernet.zm
Mona Bajaj-Elliott
Max Katubulushi
Isaac Zulu
Richard Poulsom
Roger A Feldman
Charles L Bevins
Winnie Dhaliwal
University of Zambia · ZMInstitute of Child Health · INLondon School of Hygiene & Tropical Medicine · GBThe Honourable Society of Lincoln's Inn · GBUniversity of California Davis Medical Center · US

Funding

Wellcome Trust 056481Wellcome Trust 067948
6 · The paper itself

Abstract

backgroundHuman defensin (HD) 5 and HD6, both Paneth cell alpha-defensins, contribute to the antimicrobial barrier against intestinal infection. We have previously demonstrated that levels of both HD5 and HD6 mRNA were reduced in adults living in urban Zambia, compared with those in adults living in London. The aim of the present study was to determine, during 2 years of follow-up, whether alpha-defensin expression in Zambian adults is related to susceptibility to diarrhea.

methodsWe analyzed intestinal biopsy samples from a longitudinal cohort study conducted in 83 Zambian adults by quantitative reverse-transcription polymerase chain reaction, Western blotting, immunohistochemistry, and in situ hybridization, and we measured the incidence of diarrhea.

resultsLevels of HD5 and HD6 mRNA in Paneth cells varied between participants, over time, and seasonally and were strongly correlated with mucosal architecture. Gene expression was almost exclusively restricted to Paneth cells. The median (interquartile range) HD5 mRNA level was 6.0 (5.6-6.7) log10 transcripts/microg of total RNA among 18 participants who experienced diarrhea within 2 months after biopsy-sample collection, compared with 6.8 (6.2-7.3) log10 transcripts/microg of total RNA among 94 participants who did not (P=.006). A similar observation was made for HD6.

conclusionsThese data indicate that intestinal alpha-defensin expression is dynamic and seasonal and suggest that susceptibility to intestinal infection is related to alpha-defensin expression.

Indexed as

Genetic Predisposition to DiseaseAdultalpha-DefensinsBlack PeopleCohort StudiesDiarrheaEnterocolitis, PseudomembranousFemaleGene Expression RegulationGenetics, PopulationHumansIncidenceIntestine, SmallLongitudinal StudiesMaleMiddle Agedalpha-DefensinsRNA, Messenger

Identifiers

PMID16619196
PMCPMC2629849
OpenAlexW2162498726

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.