Evidence map›Paper›PMID 28174737›Full record

ArticleCellular and molecular gastroenterology and hepatology2016

Metagenomic Characterization of Microbial Communities

Chandra Sekhar Pedamallu, Ami S Bhatt, Susan Bullman, Sharyle Fowler, Samuel S Freeman, Jacqueline Durand, Joonil Jung, Fujiko Duke, Veronica Manzo, Diana Cai and 8 more

Open access · goldAbstract read
In one paragraph

Article in Cellular and molecular gastroenterology and hepatology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  13. The relationship between the commensal microbiota levels and Crohn's disease activity.JGH open : an open access journal of gastroenterology and hepatology · 2020
    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

18 authors at 4 institutions in 1 country.

Chandra Sekhar PedamalluDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts; Harvard Medical School, Boston, Massachusetts.
Ami S BhattDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
Susan BullmanDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
Sharyle FowlerCrohn's and Colitis Center, Massachusetts General Hospital, Boston, Massachusetts.
Samuel S FreemanBroad Institute of MIT and Harvard, Cambridge, Massachusetts.
Jacqueline DurandCrohn's and Colitis Center, Massachusetts General Hospital, Boston, Massachusetts.
Joonil JungBroad Institute of MIT and Harvard, Cambridge, Massachusetts.
Fujiko DukeDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
Veronica ManzoBroad Institute of MIT and Harvard, Cambridge, Massachusetts.
Diana CaiBroad Institute of MIT and Harvard, Cambridge, Massachusetts.
Ashwin AnanthakrishnanCrohn's and Colitis Center, Massachusetts General Hospital, Boston, Massachusetts.
Akinyemi I OjesinaDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
Aruna RamachandranDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
Dirk GeversBroad Institute of MIT and Harvard, Cambridge, Massachusetts.
Ramnik J XavierCrohn's and Colitis Center, Massachusetts General Hospital, Boston, Massachusetts.
Atul K BhanCrohn's and Colitis Center, Massachusetts General Hospital, Boston, Massachusetts; Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts.
Matthew MeyersonDepartment of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Broad Institute of MIT and Harvard, Cambridge, Massachusetts; Harvard Medical School, Boston, Massachusetts.
Vijay YajnikCrohn's and Colitis Center, Massachusetts General Hospital, Boston, Massachusetts.
Broad Institute · USMassachusetts General Hospital · USDana-Farber Cancer Institute · USHarvard University · US

Funding

Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI RAYMOND T CHUNG · 1991 to 2026
$35.3M
NIDDK NIH HHS P30 DK043351
6 · The paper itself

Abstract

BACKGROUND &

aimsMicrobial dysbiosis and aberrant host-microbe interactions in the gut are believed to contribute to the development and progression of Crohn's disease (CD). Microbiome studies in CD typically have focused on microbiota in feces or superficial mucosal layers of the colon because accessing DNA from deeper layers of the bowel is challenging. In this study, we analyzed the deep tissue microbiome in patients who underwent surgical resection of the small intestine.

methodsParaffin blocks were obtained from 12 CD patients undergoing ileocecal resection, and healthy ileum samples (inflammatory bowel disease-free controls) were obtained from 12 patients undergoing surgery for right-sided colon cancer. Diseased and healthy-appearing ileum was identified using microscopy, and paraffin blocks were macrodissected using a core needle to specifically isolate DNA. Illumina Whole Genome Sequencing was used for microbial sequence identification and subsequent taxonomic classification using the

resultsWe observed significant differences between the microbiome of CD samples vs inflammatory bowel disease-free controls, including depletion of

conclusionsOur study showed dysbiosis within deeper layers of the ileum of CD patients, specifically enrichment of enterotoxigenic

Indexed as

CD, Crohn's diseaseCrohn's DiseaseDeeper Mucosal LayersFDR, false-discovery rateIBD, inflammatory bowel diseaseLDA, linear discriminant analysisMicrobial Dysbiosis

Identifiers

PMID28174737
PMCPMC5042890
OpenAlexW2398262625

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.