Evidence map›Paper›PMID 31011301›Full record

ArticleGastroenterology & hepatology2019

Influence of Environmental Factors in the Development and Outcomes of Inflammatory Bowel Disease.

Amar Vedamurthy, Ashwin N Ananthakrishnan

Open access · greenAbstract read
In one paragraph

Article in Gastroenterology & hepatology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
8.4field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 72 citations in OpenAlex.

  1. Trial
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  5. Appendix in ulcerative colitis pathogenesis and therapy: An updated narrative review.World journal of gastrointestinal pathophysiology · 2026
    Review
  6. Prophylactic effects ofBiomedical reports · 2026
    Article
  7. Review
  8. Article
  9. A bibliometric analysis of inflammatory bowel disease research in the Arab world.Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association · 2025
    Article
  10. Article
  11. Early subclinical stages of the inflammatory bowel diseases: insights from human and animal studies.American journal of physiology. Gastrointestinal and liver physiology · 2025
    Review
  12. Environmental and inflammatory factors influencing concurrent gut and lung inflammation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2024
    Article
  13. Article
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  15. Article
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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

2 authors at 1 institution in 1 country.

Amar VedamurthyDr Vedamurthy is a hospitalist in the Division of General Medicine at Massachusetts General Hospital in Boston, Massachusetts and an instructor in medicine at Harvard Medical School in Boston, Massachusetts.
Ashwin N AnanthakrishnanDr Vedamurthy is a hospitalist in the Division of General Medicine at Massachusetts General Hospital in Boston, Massachusetts and an instructor in medicine at Harvard Medical School in Boston, Massachusetts.
Massachusetts General Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inflammatory bowel disease (IBD), which mainly comprises Crohn's disease (CD) and ulcerative colitis (UC), is a term for chronic inflammatory diseases of the gut arising due to a dysregulated immune response to a dysbiotic gut microbiome on a background of genetic predisposition. However, genetics explains a small fraction of risk, and the external environment plays a large and important role in disease pathogenesis and natural history. Cigarette smoking, one of the earliest- and most-studied risk factors, increases the risk of CD onset and is associated with severe disease. In contrast, although smoking cessation increases the risk of UC onset and relapse, current smoking appears to be protective. Appendectomy is inversely associated with the risk of UC. Various dietary factors may influence risk of IBD, including an inverse association with dietary fiber. Exclusion diets have anecdotal reports of efficacy but lack evidence from rigorous clinical trials. Psychosocial factors such as depression, stress, and sleep disturbance play a role in onset as well as in determining natural history. There is an important need for rigorous studies robustly informing the association and mechanism(s) of influence of the external environment on IBD risk and for clinical trials examining the efficacy of alteration of the environment in ameliorating the course of IBD.

Indexed as

dietenvironmentInflammatory bowel diseasemicrobiomesmoking

Identifiers

PMID31011301
PMCPMC6469265
OpenAlexW2990021642

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.