Evidence map›Paper›PMID 19468064›Full record

ArticleThe Journal of experimental medicine2009

Parasites represent a major selective force for interleukin genes and shape the genetic predisposition to autoimmune conditions.

Matteo Fumagalli, Uberto Pozzoli, Rachele Cagliani, Giacomo P Comi, Stefania Riva, Mario Clerici, Nereo Bresolin, Manuela Sironi

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 124 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed, 2 pooled it
19.3field-weighted citation impact, top 1% 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

124 citing papers in PubMed, 2 syntheses or guidelines pooled it, 248 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Anisakiasis: A Decade of Molecular and Diagnostic Advancements (2015-2026).International journal of molecular sciences · 2026
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  12. Evolutionary View of Liver Pathology.Evolutionary applications · 2024
    Review
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  14. Article
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  17. Article
  18. Article
  19. Article
  20. Article

64 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

8 authors at 4 institutions in 1 country.

Matteo FumagalliScientific Institute IRCCS E. Medea, Bioinformatic Laboratory, 23842 Bosisio Parini, Italy.
Uberto Pozzoli
Rachele Cagliani
Giacomo P Comi
Stefania Riva
Mario Clerici
Nereo Bresolin
Manuela Sironi
IRCCS Eugenio Medea · ITUniversity of Milan · ITInstitute of Biomedical Technologies · ITPolitecnico di Milano · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many human genes have adapted to the constant threat of exposure to infectious agents; according to the "hygiene hypothesis," lack of exposure to parasites in modern settings results in immune imbalances, augmenting susceptibility to the development of autoimmune and allergic conditions. Here, by estimating the number of pathogen species/genera in a specific geographic location (pathogen richness) for 52 human populations and analyzing 91 interleukin (IL)/IL receptor genes (IL genes), we show that helminths have been a major selective force on a subset of these genes. A population genetics analysis revealed that five IL genes, including IL7R and IL18RAP, have been a target of balancing selection, a selection process that maintains genetic variability within a population. Previous identification of polymorphisms in some of these loci, and their association with autoimmune conditions, prompted us to investigate the relationship between adaptation and disease. By searching for variants in IL genes identified in genome-wide association studies, we verified that six risk alleles for inflammatory bowel (IBD) or celiac disease are significantly correlated with micropathogen richness. These data support the hygiene hypothesis for IBD and provide a large set of putative targets for susceptibility to helminth infections.

Indexed as

Selection, GeneticAllelesAnimalsCeliac DiseaseGenetic Predisposition to DiseaseGenetics, PopulationGenetic VariationHaplotypesHelminthsHumansInflammatory Bowel DiseasesInterleukinsPolymorphism, Single NucleotideReceptors, InterleukinInterleukinsReceptors, Interleukin

Identifiers

PMID19468064
PMCPMC2715056
OpenAlexW2152196530

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.