Evidence map›Paper›PMID 37170273›Full record

ArticleBMC medicine2023

Chemotherapy-induced weight gain in early-stage breast cancer: a prospective matched cohort study reveals associations with inflammation and gut dysbiosis.

John Walker, Anil Abraham Joy, Larissa J Vos, Trevor H Stenson, John R Mackey, Juan Jovel, Dina Kao, Karen L Madsen, Gane Ka-Shu Wong

Open access · goldAbstract read
In one paragraph

Article in BMC medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

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  4. Weight change and diabetes risk following breast cancer: a nationwide cohort study.Journal of cancer survivorship : research and practice · 2025
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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

9 authors at 2 institutions in 1 country.

John Walker *Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2H5, Canada. jwwalker@ualberta.ca.ORCID 0000-0002-3006-6145
Anil Abraham Joy *Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2H5, Canada.
Larissa J VosClinical Trials Unit, Cross Cancer Institute, Edmonton, AB, T6G 1Z2, Canada.
Trevor H StensonClinical Trials Unit, Cross Cancer Institute, Edmonton, AB, T6G 1Z2, Canada.
John R MackeyDepartment of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2H5, Canada.
Juan JovelThe Applied Genomics Core (TAGC), Faculty of Medicine, University of Alberta, Edmonton, AB, T6G 2X8, Canada.
Dina KaoDivision of Gastroenterology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2H5, Canada.
Karen L MadsenDivision of Gastroenterology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2H5, Canada.
Gane Ka-Shu WongDivision of Gastroenterology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2H5, Canada.
University of Alberta · CAOntario Institute for Cancer Research · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEarly-stage breast cancer patients treated with chemotherapy risk the development of metabolic disease and weight gain, which can result in increased morbidity and reduced quality of life in survivorship. We aimed to analyze changes within the gastrointestinal microbiome of early-stage breast cancer patients treated with and without chemotherapy to investigate a potential relationship between dysbiosis, a systemic inflammatory response, and resultant anthropomorphic changes.

methodsWe undertook an a priori analysis of serially collected stool and plasma samples from 40 patients with early-stage breast cancer who underwent adjuvant endocrine therapy only, adjuvant chemotherapy only, or both. Gut microbiota were assessed by metagenomic comparison of stool samples following deep sequencing. Inflammatory biomarkers were evaluated by proteomic analysis of plasma and measurement of fecal calprotectin. Body composition was investigated by dual-energy X-ray absorptiometry to determine biomass indices.

resultsAs opposed to treatment with endocrine therapy only, chemotherapy resulted in statistically and clinically significant weight gain and an increase in the android to gynoid ratio of fat distribution. Patients treated with chemotherapy gained an average of 0.15% total mass per month, as opposed to a significantly different loss of 0.19% in those patients who received endocrine-only therapy. Concurrently, a twofold increase in fecal calprotectin occurred after chemotherapy that is indicative of interferon-dependent inflammation and evidence of colonic inflammation. These anthropomorphic and inflammatory changes occurred in concert with a chemotherapy-dependent effect on the gut microbiome as evidenced by a reduction in both the abundance and variety of microbial species.

conclusionsWe confirm the association of chemotherapy treatment with weight gain and potential deleterious anthropometric changes and suggest that alterations of bacterial flora may contribute to these phenomena through the induction of systemic inflammation. Consequently, the gut microbiome may be a future target for intervention in preventing chemotherapy-dependent anthropometric changes.

Indexed as

Antineoplastic AgentsBreast NeoplasmsCohort StudiesDysbiosisFecesFemaleHumansInflammationLeukocyte L1 Antigen ComplexProspective StudiesProteomicsQuality of LifeWeight GainAntineoplastic AgentsLeukocyte L1 Antigen ComplexAdjuvant chemotherapyDual-energy X-ray absorptiometryGastrointestinal dysbiosisInflammatory biomarkersInflammatory bowel diseaseWeight gain

Identifiers

PMID37170273
PMCPMC10173591
OpenAlexW4376224121

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.