Evidence map›Paper›PMID 23663440›Full record

ArticleThe World Allergy Organization journal2013

The biodiversity hypothesis and allergic disease: world allergy organization position statement.

Tari Haahtela, Stephen Holgate, Ruby Pawankar, Cezmi A Akdis, Suwat Benjaponpitak, Luis Caraballo, Jeffrey Demain, Jay Portnoy, Leena von Hertzen, WAO Special Committee on Climate Change and Biodiversity

Open access · goldAbstract read
In one paragraph

Article in The World Allergy Organization journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 146 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
146citing papers in PubMed, 1 pooled it
52.7field-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

146 citing papers in PubMed, 1 synthesis or guideline pooled it, 409 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. [Gut microbiota and allergic diseases].Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2026
    Review
  6. Review
  7. Article
  8. Review
  9. Homo sapiens, industrialisation and the environmental mismatch hypothesis.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
  10. Residential greenness and atopic dermatitis in Japanese children: Findings from the TMM BirThree cohort study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
    Article
  11. Nature prescription for patients with chronic respiratory diseases.The World Allergy Organization journal · 2026
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article

86 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

10 authors at 8 institutions in 7 countries.

Tari HaahtelaSkin and Allergy Hospital, Helsinki University Hospital, PO Box 160, 00029, Helsinki, HUCH, Finland. tari.haahtela@haahtela.fi.
Stephen Holgate
Ruby Pawankar
Cezmi A Akdis
Suwat Benjaponpitak
Luis Caraballo
Jeffrey Demain
Jay Portnoy
Leena von Hertzen
WAO Special Committee on Climate Change and Biodiversity
University of Helsinki · FIMahidol University · THNippon Medical School · JPUniversity of Cartagena · COUniversity of Missouri–Kansas City · USUniversity of Southampton · GBUniversity of Washington · USUniversity of Zurich · CH

Funding

Medical Research Council G0800766
6 · The paper itself

Abstract

Biodiversity loss and climate change secondary to human activities are now being associated with various adverse health effects. However, less attention is being paid to the effects of biodiversity loss on environmental and commensal (indigenous) microbiotas. Metagenomic and other studies of healthy and diseased individuals reveal that reduced biodiversity and alterations in the composition of the gut and skin microbiota are associated with various inflammatory conditions, including asthma, allergic and inflammatory bowel diseases (IBD), type1 diabetes, and obesity. Altered indigenous microbiota and the general microbial deprivation characterizing the lifestyle of urban people in affluent countries appear to be risk factors for immune dysregulation and impaired tolerance. The risk is further enhanced by physical inactivity and a western diet poor in fresh fruit and vegetables, which may act in synergy with dysbiosis of the gut flora. Studies of immigrants moving from non-affluent to affluent regions indicate that tolerance mechanisms can rapidly become impaired in microbe-poor environments. The data on microbial deprivation and immune dysfunction as they relate to biodiversity loss are evaluated in this Statement of World Allergy Organization (WAO). We propose that biodiversity, the variability among living organisms from all sources are closely related, at both the macro- and micro-levels. Loss of the macrodiversity is associated with shrinking of the microdiversity, which is associated with alterations of the indigenous microbiota. Data on behavioural means to induce tolerance are outlined and a proposal made for a Global Allergy Plan to prevent and reduce the global allergy burden for affected individuals and the societies in which they live.

Identifiers

PMID23663440
PMCPMC3646540
OpenAlexW2105617257

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.