Evidence map›Paper›PMID 31727963›Full record

ArticleScientific reports2019

Human faecal collection methods demonstrate a bias in microbiome composition by cell wall structure.

Emma-Jane Watson, Jennifer Giles, Benjamin L Scherer, Paul Blatchford

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

28 citing papers in PubMed, 47 citations in OpenAlex.

  1. Microbiome Single Cell Atlases Generated with a Commercial Instrument.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  2. Article
  3. Review
  4. Article
  5. Article
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  10. Accelerating Gut Microbiome Research with Robust Sample Collection.Research & reviews. Journal of microbiology and biotechnology · 2023
    Article
  11. Article
  12. Article
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  14. Article
  15. Article
  16. Article
  17. Human Stool Preservation Impacts Taxonomic Profiles in 16S Metagenomics Studies.Frontiers in cellular and infection microbiology · 2022
    Article
  18. Review
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Emma-Jane WatsonCSIRO Health and Biosecurity, Gate 13 Kintore Avenue, Adelaide, South Australia, 5000, Australia.
Jennifer GilesCSIRO Health and Biosecurity, Gate 13 Kintore Avenue, Adelaide, South Australia, 5000, Australia.
Benjamin L SchererCSIRO Health and Biosecurity, Gate 13 Kintore Avenue, Adelaide, South Australia, 5000, Australia.
Paul BlatchfordCSIRO Health and Biosecurity, Gate 13 Kintore Avenue, Adelaide, South Australia, 5000, Australia. paul.blatchford@zespri.com.
CSIRO Health and Biosecurity · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clinical trial faecal collections present challenges through geographical spread and inexperienced participants. Collection techniques have been developed and tested to overcome these challenges, but previous studies investigating these techniques have demonstrated a highly variable capacity for sample preservation. Furthermore, these studies typically only examine either preservation of genetic content or metabolites, not both. This study investigated the Stool Nucleic Acid Collection and Preservation Tube (Norgen BioTek Corp) for the preservation of both microbial DNA and microbial organic acid metabolites in human faecal samples when compared to frozen samples. Twenty six healthy adult participants were instructed to collect a bowel movement, subsample into collection tubes and immediately transfer the remaining bulk to -20 °C storage. Resulting organic acid concentrations remained comparable across methods when the preservation tubes were used correctly. The 16S rRNA gene sequencing data revealed twenty significantly different bacterial genera between the two collection methods. Ten Gram-negative genera were more abundant in the collection tubes, and ten Gram-positive genera were more abundant in the fresh frozen samples. This study has illustrated that faecal collection methods bias the microbial community profile according to Gram status and this should be considered when designing studies that collect and store human faecal samples.

Indexed as

AdultBacteriaDNA, BacterialDNA, RibosomalFecesFreezingHealthy VolunteersHumansHydrogen-Ion ConcentrationMicrobiotaPhylogenyRNA, Ribosomal, 16SSequence Analysis, DNASpecimen HandlingDNA, BacterialDNA, RibosomalRNA, Ribosomal, 16S

Identifiers

PMID31727963
PMCPMC6856092
OpenAlexW2989363050

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.