Evidence map›Paper›PMID 22194876›Full record

ArticlePloS one2011

Changes in human fecal microbiota due to chemotherapy analyzed by TaqMan-PCR, 454 sequencing and PCR-DGGE fingerprinting.

Jutta Zwielehner, Cornelia Lassl, Berit Hippe, Angelika Pointner, Olivier J Switzeny, Marlene Remely, Elvira Kitzweger, Reinhard Ruckser, Alexander G Haslberger

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed, 6 pooled it
4.9field-weighted citation impact, top 4% 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

109 citing papers in PubMed, 6 syntheses or guidelines pooled it, 198 citations in OpenAlex.

  1. Pooled it
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  3. Microbiome-gut-brain axis in cancer treatment-related psychoneurological toxicities and symptoms: a systematic review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2021
    Pooled it
  4. Pooled it
  5. The gut microbiome, symptoms, and targeted interventions in children with cancer: a systematic review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2018
    Pooled it
  6. Systematic Review: The Impact of Cancer Treatment on the Gut and Vaginal Microbiome in Women With a Gynecological Malignancy.International journal of gynecological cancer : official journal of the International Gynecological Cancer Society · 2017
    Pooled it
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  9. The gut-heart axis in cardio-oncology.Cardiovascular research · 2026
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49 more citing papers are in PubMed but not listed here.

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

9 authors at 1 institution in 1 country.

Jutta ZwielehnerDepartment of Nutritional Sciences, Vienna, Austria.
Cornelia Lassl
Berit Hippe
Angelika Pointner
Olivier J Switzeny
Marlene Remely
Elvira Kitzweger
Reinhard Ruckser
Alexander G Haslberger
University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe investigated whether chemotherapy with the presence or absence of antibiotics against different kinds of cancer changed the gastrointestinal microbiota. METHODOLOGY/PRINCIPAL

findingsFeces of 17 ambulant patients receiving chemotherapy with or without concomitant antibiotics were analyzed before and after the chemotherapy cycle at four time points in comparison to 17 gender-, age- and lifestyle-matched healthy controls. We targeted 16S rRNA genes of all bacteria, Bacteroides, bifidobacteria, Clostridium cluster IV and XIVa as well as C. difficile with TaqMan qPCR, denaturing gradient gel electrophoresis (DGGE) fingerprinting and high-throughput sequencing. After a significant drop in the abundance of microbiota (p = 0.037) following a single treatment the microbiota recovered within a few days. The chemotherapeutical treatment marginally affected the Bacteroides while the Clostridium cluster IV and XIVa were significantly more sensitive to chemotherapy and antibiotic treatment. DGGE fingerprinting showed decreased diversity of Clostridium cluster IV and XIVa in response to chemotherapy with cluster IV diversity being particularly affected by antibiotics. The occurrence of C. difficile in three out of seventeen subjects was accompanied by a decrease in the genera Bifidobacterium, Lactobacillus, Veillonella and Faecalibacterium prausnitzii. Enterococcus faecium increased following chemotherapy. CONCLUSIONS/SIGNIFICANCE: Despite high individual variations, these results suggest that the observed changes in the human gut microbiota may favor colonization with C. difficile and Enterococcus faecium. Perturbed microbiota may be a target for specific mitigation with safe pre- and probiotics.

Indexed as

Drug-Related Side Effects and Adverse ReactionsAgedAnti-Bacterial AgentsBacteroidesBifidobacteriumCase-Control StudiesClostridiumColony Count, MicrobialDenaturing Gradient Gel ElectrophoresisDNA FingerprintingFecesGenetic VariationHealthHigh-Throughput Nucleotide SequencingHumansMetagenomeAnti-Bacterial AgentsRNA, Ribosomal, 16STaq Polymerase

Identifiers

PMID22194876
PMCPMC3237468
OpenAlexW1977807397

What OpenQuestion holds

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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.