Evidence map›Paper›PMID 40036959›Full record

ArticleThe Journal of clinical endocrinology and metabolism2025

Fiber Intervention Study in Prader-Willi Syndrome: Insights into Metabolic and Microbiota Shifts.

Qiming Tan, Ye Peng, Edward C Deehan, Flavio T Vieira, Brian Wan Ping Ho, Shima Afhami, Eytan Wine, Karen L Madsen, Catherine J Field, Mohammadreza Pakseresht and 5 more

Abstract read
In one paragraph

Article in The Journal of clinical endocrinology and metabolism, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

15 authors.

Qiming TanDepartment of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2B7.ORCID 0000-0001-9014-6246
Ye PengMicrobiota I-Center (MagIC), Hong Kong SAR, 999077, China.
Edward C DeehanDepartment of Food Science and Technology, University of Nebraska, Lincoln, NE 68588, USA.ORCID 0000-0001-7697-1418
Flavio T VieiraDepartment of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2B7.
Brian Wan Ping HoMicrobiota I-Center (MagIC), Hong Kong SAR, 999077, China.
Shima AfhamiCumming School of Medicine, University of Calgary, Calgary, AB, Canada T2N 1N4.
Eytan WineDepartment of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2B7.ORCID 0000-0002-3458-4142
Karen L MadsenDepartment of Medicine, University of Alberta, Edmonton, AB, Canada T6G 2B7.ORCID 0000-0002-8636-0714
Catherine J FieldDepartment of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada T6G 2P5.
Mohammadreza PaksereshtDepartment of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada T6G 2P5.
Olga IlkayevaDuke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University School of Medicine, Durham, NC 27710, USA.
Christopher B NewgardDuke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University School of Medicine, Durham, NC 27710, USA.
Jens WalterAPC Microbiome Ireland, University College Cork, Cork T12 K8AF, County Cork, Ireland.ORCID 0000-0003-1754-172X
Hein Min TunMicrobiota I-Center (MagIC), Hong Kong SAR, 999077, China.
Andrea M HaqqDepartment of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada T6G 2B7.ORCID 0000-0002-6256-4982

Funding

Alberta Diabetes Institute GraduateCanadian Consortium of Clinical Trial Training PlatformChinese University of Hong KongHelmholtz International SchoolInnoHK, The Government of Hong Kong, Special Administrative Region of the People's Republic of ChinaWeston Family Foundation and FoundationWomen and Children's Health Research Institute Patient and Community Engagement Training
6 · The paper itself

Abstract

contextWhile increased fiber intake may benefit appetite and metabolism in the general population, its effects in individuals with Prader-Willi syndrome (PWS), a condition characterized by hyperphagia, obesity, and metabolic dysregulation, remain to be explored.

objectiveThis study assessed the effects of a fiber intervention on hyperphagia, metabolic health, and gut microbiota in individuals with PWS, and explored associations between changes in health markers and shifts in microbiota.

methodsParticipants received either a high-dose fiber intervention (35 g/day) or a control for 3 weeks. Following a washout period of 4 to 8 weeks, participants switched treatments for another 3 weeks. Fecal (bacterial 16S ribosomal RNA) and blood (immunometabolic markers, targeted metabolomics) samples were collected before and after each treatment.

resultsFourteen participants (with a median age of 13.6 years, 8 [57.1%] were female) reported high tolerance to the fiber intervention. While it did not significantly alter hyperphagia or key metabolic markers, the fiber intervention led to shifts in gut microbiota diversity and increased the abundance of beneficial bacteria, such as Bifidobacterium longum and Faecalibacterium prausnitzii. Additionally, it altered fecal and serum metabolites, including a decrease in branched-chain fatty acids and an increase in serum C4-OH acylcarnitine.

conclusionWhile this study did not observe significant changes in primary or secondary endpoints, it suggests that a short-term high-fiber intervention may induce beneficial shifts in gut microbiota and microbial metabolites in individuals with PWS. Further research is warranted to investigate the long-term effects and potential therapeutic applications of fiber interventions in PWS.

Indexed as

Dietary FiberGastrointestinal MicrobiomeHyperphagiaPrader-Willi SyndromeAdolescentAdultBiomarkersChildFecesFemaleHumansMaleYoung AdultBiomarkersDietary Fiberdietary fibergut microbiotahyperphagiametabolic healthPrader-Willi syndrome

Identifiers

PMID40036959
PMCPMC12527441

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.