Evidence map›Paper›PMID 32499276›Full record

ArticleBMJ open gastroenterology2020

Acute appendicitis is associated with appendiceal microbiome changes including elevated

Sun Jung Oh, Maya Pimentel, Gabriela G S Leite, Shreya Celly, Maria Jesus Villanueva-Millan, Isabela Lacsina, Brennan Chuang, Gonzalo Parodi, Walter Morales, Stacy Weitsman and 7 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open gastroenterology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. The appendix and ulcerative colitis - an unsolved connection.Nature reviews. Gastroenterology & hepatology · 2023
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. The microbiome in adult acute appendicitis.Gut microbiome (Cambridge, England) · 2022
    Article
  11. Article
  12. Hospitalization Trends for Acute Appendicitis in Spain, 1998 to 2017.International journal of environmental research and public health · 2021
    Observational
  13. Article
  14. 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

17 authors at 1 institution in 1 country.

Sun Jung OhMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Maya PimentelMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Gabriela G S LeiteMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Shreya CellyMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Maria Jesus Villanueva-MillanMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Isabela LacsinaMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Brennan ChuangMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Gonzalo ParodiMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Walter MoralesMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Stacy WeitsmanMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Tahli Singer-EnglarMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Gillian M BarlowMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Jing ZhaiDepartment of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Nipaporn PichestshoteMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Ali RezaieMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Ruchi MathurMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Mark PimentelMedically Associated Science and Technology (MAST) Program, Cedars-Sinai Medical Center, Los Angeles, California, USA pimentelm@cshs.org.ORCID 0000-0002-0619-5115
Cedars-Sinai Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare the appendiceal microbiomes and examine the prevalence of

designArchived samples of formalin-fixed paraffin-embedded appendiceal tissues were obtained from 50 consecutive female subjects who underwent appendectomy for acute, non-perforated appendicitis, and 35 consecutive female controls who underwent incidental appendectomy during gynaecological surgery.

results16S rRNA gene sequencing revealed that the relative abundances (RAs) of the major phyla in appendiceal tissues (Firmicutes, Proteobacteria, Bacteroidetes, and Actinobacteria) were similar in both groups. Beta diversity was significantly different due to differences in Bacteroidetes and Proteobacteria (p<0.0001). Within Proteobacteria, RAs of classes Alphaproteobacteria (~21%, fold change (FC)=1.31, false discovery rate (FDR) p value=0.03) and Epsilonproteobacteria (~1%, FC=0.25, FDR p value>0.05) were increased in acute appendicitis samples. RAs of unknown genera from families Burkholderiaceae and Enterobacteriaceae were decreased in appendicitis samples, and 14 genera were increased, including

conclusionsOur findings indicate that

Indexed as

Acute DiseaseAdultAppendectomyAppendicitisAppendixCampylobacter InfectionsCampylobacter jejuniCase-Control StudiesDNA, BacterialFemaleHumansMicrobiotaMiddle AgedPrevalenceRNA, Ribosomal, 16SDNA, BacterialRNA, Ribosomal, 16Sappendicitiscampylobacter jejunienteric bacterial microflora

Identifiers

PMID32499276
PMCPMC7279619
OpenAlexW3033833282

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.