Evidence map›Paper›PMID 28752633›Full record

ArticleNeurogastroenterology and motility2017

Reproducibility of assessing fecal microbiota in chronic constipation.

G Parthasarathy, J Chen, N Chia, H M O'Connor, H R Gaskins, A E Bharucha

Abstract read
In one paragraph

Article in Neurogastroenterology and motility, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. GUT MICROBIOTA AND THE USE OF PROBIOTICS IN CONSTIPATION IN CHILDREN AND ADOLESCENTS: SYSTEMATIC REVIEW.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2020
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Efficacy ofFrontiers in nutrition · 2022
    Article
  6. Article
  7. Laxative Effects of Yangyin Tongmi Capsule on a Model of Diphenoxylate-Induced Constipation in Mice.Evidence-based complementary and alternative medicine : eCAM · 2020
    Article
  8. Establishing a donor stool bank for faecal microbiota transplantation: methods and feasibility.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Article
  9. The Gut Microbiome in Adult and Pediatric Functional Gastrointestinal Disorders.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2019
    Review
  10. Article
  11. Article
  12. 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

6 authors.

G ParthasarathyDivision of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA.
J ChenDivision of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, 55905, USA.
N ChiaDivision of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, 55905, USA.
H M O'ConnorClinical Research and Trials Unit, Center for Clinical and Translational Science, Mayo Clinic, Rochester, MN, 55905, USA.
H R GaskinsCarl R. Woese Institute for Genomic Biology, University of Illinois, Urbana-Champaign, IL, 61801, USA.
A E BharuchaDivision of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA.ORCID http://orcid.org/0000-0002-7644-0390

Funding

Mayo Clinic Center for Translational Science ActivitiesUL1TR000135 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$41.2M
PILOT AND FEASIBILTY PROGRAMP30DK084567 · NIDDK · MAYO CLINIC ROCHESTER · PI GREGORY J. GORES · 2009 to 2026
$22.2M
Pathophysiology of Anorectal DisordersR01DK078924 · NIDDK · MAYO CLINIC ROCHESTER · PI BHARUCHA, ADIL E. · 2008 to 2023
$5.0M
NCATS NIH HHS UL1 TR000135NIDDK NIH HHS P30 DK084567NIDDK NIH HHS R01 DK078924
6 · The paper itself

Abstract

backgroundWhile limited data suggest that the fecal microbiota in healthy people is stable over time, the intraindividual variability of the fecal microbiota in constipated patients is unknown.

methodsThis study evaluated the intraindividual reproducibility of fecal microbiota analyzed with 16S rRNA gene sequencing in two stool samples collected without and after a laxative, respectively, in 25 healthy people and 25 constipated women. Participants completed a food record for 3 d before the stool collection. Colonic transit was measured with scintigraphy. KEY

resultsThe constipated patients were older (48±15 vs 39±10 y, P=.02) than healthy participants but had a similar BMI. The total daily caloric intake was less (P=.005) in constipated (1265±350 kcal) than healthy participants (1597±402 kcal). Fourteen patients but only two controls (P<.005), had delayed colonic transit. For most measures of alpha (eg, Observed OTU number, Shannon index) and beta diversity (eg, Bray-Curtis dissimilarity, UniFrac, phyla level abundance), the ICCs between two stool samples were high, indicating moderate or strong agreement, and similar in healthy people and constipated patients. The ICC for the weighted UniFrac distance, which is weighted by abundance, was lower than its unweighted counterpart, indicating that the unweighted measure is more robust and reproducible. CONCLUSIONS AND INFERENCES: The intraindividual reproducibility of fecal microbiota in constipated patients is high and comparable to healthy participants. For most purposes, evaluating the fecal microbiota in a single stool sample should generally suffice in adequately powered studies of healthy and constipated patients.

Indexed as

AdultAgedConstipationFecesFemaleHumansMiddle AgedReproducibility of ResultsRNA, Ribosomal, 16SRNA, Ribosomal, 16Sbreath methaneconstipationirritable bowel syndromelactulosemethanemicrobiomemicrobiotareproducibilitytransit

Identifiers

PMID28752633
PMCPMC5593773

What OpenQuestion holds

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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.