Evidence map›Paper›PMID 15014429›Full record

ArticleGenes and immunity2004

HLA-DQ6 and ingestion of contaminated water: possible gene-environment interaction in an outbreak of Leptospirosis.

J Lingappa, T Kuffner, J Tappero, W Whitworth, A Mize, R Kaiser, J McNicholl

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Genes and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

23 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Leptospirosis.Nature reviews. Disease primers · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Leptospirosis Pathophysiology: Into the Storm of Cytokines.Frontiers in cellular and infection microbiology · 2018
    Review
  8. Pathways to zoonotic spillover.Nature reviews. Microbiology · 2017
    Review
  9. Article
  10. Review
  11. Leptospirosis in humans.Current topics in microbiology and immunology · 2015
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. The emergence of severe pulmonary hemorrhagic leptospirosis: questions to consider.Frontiers in cellular and infection microbiology · 2011
    Review
  17. Article
  18. Review
  19. The kidney in leptospirosis.Pediatric nephrology (Berlin, Germany) · 2008
    Review
  20. 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

7 authors at 2 institutions in 2 countries.

J LingappaDivision of Bacterial and Mycotic Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. JWL8@CDC.GOV
T Kuffner
J Tappero
W Whitworth
A Mize
R Kaiser
J McNicholl
Centers for Disease Control and Prevention · USCenters for Disease Control and Prevention · UG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leptospirosis is a zoonosis that can cause severe multisystem disease. While host gene-environment interactions likely modify infectious disease susceptibility, including for leptopsirosis, this has not been documented. In a 1998 leptospirosis outbreak investigation among triathletes in a lake swim, swallowing lake-water was a disease risk-factor. We used genomic DNA from 85 anonymized blood-sample remainders from that investigation to examine the association of laboratory-confirmed leptospirosis with gene polymorphisms (TNF-alpha alleles and serologically defined genotypes for HLA-DRB1 and HLA-DQB1). HLA-DQ6-positive triathletes had increased risk of laboratory-confirmed leptospirosis (OR=2.8, P=0.04) compared to DQ6-negatives. DQ6-positive triathletes swallowing lake-water had greatest risk (OR 8.46, P< or =0.001). This first report of a genetic risk-factor affecting susceptibility to leptospirosis is also the first documented gene-environment interaction (DQ6 and swallowed water) affecting infectious disease susceptibility. Based on these preliminary findings, we hypothesize a role for superantigens in leptospirosis and underscore the importance of outbreak investigations for understanding infectious disease gene-environment interactions.

Indexed as

Disease OutbreaksWater MicrobiologyAdolescentAdultAgedAged, 80 and overAllelesCohort StudiesDNAEnvironmentFemaleGenetic Predisposition to DiseaseGenotypeHLA-DQ AntigensHLA-DQ beta-ChainsHLA-DR AntigensDNAHLA-DQ6 antigenHLA-DQ AntigensHLA-DQB1 antigenHLA-DQ beta-ChainsHLA-DR AntigensHLA-DRB1 ChainsTumor Necrosis Factor-alpha

Identifiers

PMID15014429
OpenAlexW1987632260

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.