Evidence map›Paper›PMID 33304658›Full record

ArticlePeerJ2020

Partial restoration of normal intestinal microbiota in morbidly obese women six months after bariatric surgery.

Jukka Koffert, Leo Lahti, Lotta Nylund, Seppo Salminen, Jarna C Hannukainen, Paulina Salminen, Willem M de Vos, Pirjo Nuutila

Abstract read
In one paragraph

Article in PeerJ, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 2 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

5 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Impact of bariatric surgery on gut microbiota in obese patients: A systematic review.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2025
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Review
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

8 authors.

Jukka Koffert *Department of Gastroenterology, Turku University Hospital, Turku, Finland.
Leo Lahti *Department of Mathematics and Statistics, University of Turku, Turku, Finland.
Lotta NylundFunctional Foods Forum, University of Turku, Turku, Finland.
Seppo SalminenFunctional Foods Forum, University of Turku, Turku, Finland.
Jarna C HannukainenTurku PET Centre, University of Turku, Turku, Finland.
Paulina SalminenDivision of Digestive Surgery and Urology, Turku University Hospital, Turku, Finland.
Willem M de VosRPU Immunobiology and Human Microbiome, University of Helsinki, Helsinki, Finland.
Pirjo NuutilaTurku PET Centre, University of Turku, Turku, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We studied the impact of bariatric surgery on the intestinal microbiota of morbidly obese study subjects. A total of 13 morbidly obese women (five of which had type 2 diabetes) and 14 healthy age- and gender-matched controls were recruited and the microbiota composition of fecal samples were determined by using a phylogenetic microarray. Sampling of the patients took place just one month before and 6 months after the operation. Within six months after bariatric surgery, the obese subjects had lost on average a quarter of their weight whereas four of the five of the diabetic subjects were in remission. Bariatric surgery was associated with an increased microbial community richness and Bacteroidetes/Firmicutes ratio. In addition, we observed an increased relative abundance of facultative anaerobes, such as

Indexed as

Bariatric surgeryClinical trialFecal microbiotaObesityType 2 diabetes

Identifiers

PMID33304658
PMCPMC7700738

What OpenQuestion holds

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LicenceCC BY-NC
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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.