Evidence map›Paper›PMID 32433684›Full record

ArticlePloS one2020

Hypomorphic SI genetic variants are associated with childhood chronic loose stools.

Bruno P Chumpitazi, Jeffery Lewis, Derick Cooper, Mauro D'Amato, Joel Lim, Sandeep Gupta, Adrian Miranda, Natalie Terry, Devendra Mehta, Ann Scheimann and 9 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05795049 (Genetic Carbohydrate Maldigestion as a Model to Study Food Hypersensitivity Mechanism and Guide Personalised Treatment Using a Non-invasive Multiparametric Test), which is not on this map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 23% 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.

NCT05795049 active not recruitingnot on this mapstarted 2024, after this paper: background citation

Genetic Carbohydrate Maldigestion as a Model to Study Food Hypersensitivity Mechanism and Guide Personalised Treatment Using a Non-invasive Multiparametric Test (Work Package 1)

TypeobservationalSponsorNottingham University Hospitals NHS TrustRan2024 to 2026Enrolled2,000ConditionsIrritable Bowel Syndrome (IBS), Sucrase Isomaltase DeficiencyArmsStool and saliva sample collection, Questionnaire completion
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. Prevalence of functional diarrhea in children and adolescents.Neurogastroenterology and motility · 2025
    Article
  4. Genetics of irritable bowel syndrome: shifting gear via biobank-scale studies.Nature reviews. Gastroenterology & hepatology · 2022
    Review
  5. Review
  6. 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

19 authors at 16 institutions in 2 countries.

Bruno P ChumpitaziBaylor College of Medicine, Houston, TX, United States of America.ORCID 0000-0002-0829-0036
Jeffery LewisChildren's Center for Digestive Health Care, Atlanta, GA, United States of America.
Derick CooperQOL Medical, LLC, Vero Beach, FL, United States of America.
Mauro D'AmatoSchool of Biological Sciences, Monash University, Clayton, VIC, Australia.
Joel LimChildren's Mercy Hospital, Kansas City, MO, United States of America.
Sandeep GuptaSacramento Pediatric Gastroenterology, Sacramento, CA, United States of America.
Adrian MirandaChildren's Hospital of Wisconsin, Milwaukee, WI, United States of America.
Natalie TerryChildren's Hospital of Philadelphia, Philadelphia, PA, United States of America.
Devendra MehtaArnold Palmer Children's Hospital, Orlando, FL, United States of America.
Ann ScheimannJohns Hopkins University, Baltimore, MD, United States of America.
Molly O'GormanPrimary Children's Medical Center, Salt Lake City, UT, United States of America.
Neelesh TipnisUniversity of Mississippi Medical Center, Jackson, MS, United States of America.
Yinka DaviesSacramento Pediatric Gastroenterology, Sacramento, CA, United States of America.
Joel FriedlanderChildren's Hospital Colorado, Digestive Health Institute, University of Colorado School of Medicine, Aurora, CO, United States of America.
Heather SmithQOL Medical, LLC, Vero Beach, FL, United States of America.
Jaya PunatiChildren's Hospital of Los Angeles, Los Angeles, CA, United States of America.
Julie KhlevnerColumbia University Medical Center, New York, NY, United States of America.
Mala SettyUCSF Benioff Children's Hospital Oakland, Oakland, CA, United States of America.
Carlo Di LorenzoDepartment of Pediatrics, The Ohio State University, Columbus, OH, United States of America.
Orthopaedic Center of Vero Beach · USArnold Palmer Hospital for Children · USBaylor College of Medicine · USChildren's Hospital Colorado · USChildren's Hospital of Los Angeles · USChildren's Hospital of Philadelphia · USChildren's Hospital of Wisconsin · USChildren's Mercy Hospital · USColumbia University Irving Medical Center · USJohns Hopkins University · USMonash University · AUPrimary Children's Hospital · USThe Ohio State University · USTroy Gastroenterology · USUCSF Benioff Children's Hospital · USUniversity of Mississippi Medical Center · US

Funding

Intestinal Microbiome Fructan Metabolism and Symptom Generation in Childhood IBSK23DK101688 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI CHUMPITAZI, BRUNO PEDRO · 2014 to 2018
$879k
Nonbacterial Gut Microbiome and Fructan Symptom Generation in Childhood IBSR03DK117219 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI CHUMPITAZI, BRUNO PEDRO · 2018 to 2019
$238k
NIDDK NIH HHS K23 DK101688NIDDK NIH HHS R03 DK117219
6 · The paper itself

Abstract

objectiveThe SI gene encodes the sucrase-isomaltase enzyme, a disaccharidase expressed in the intestinal brush border. Hypomorphic SI variants cause recessive congenital sucrase-isomaltase deficiency (CSID) and related gastrointestinal (GI) symptoms. Among children presenting with chronic, idiopathic loose stools, we assessed the prevalence of CSID-associated SI variants relative to the general population and the relative GI symptom burden associated with SI genotype within the study population.

methodsA prospective study conducted at 18 centers enrolled 308 non-Hispanic white children ≤18 years old who were experiencing chronic, idiopathic, loose stools at least once per week for >4 weeks. Data on demographics, GI symptoms, and genotyping for 37 SI hypomorphic variants were collected. Race/ethnicity-matched SI data from the Exome Aggregation Consortium (ExAC) database was used as the general population reference.

resultsCompared with the general population, the cumulative prevalence of hypomorphic SI variants was significantly higher in the study population (4.5% vs. 1.3%, P < .01; OR = 3.5 [95% CI: 6.1, 2.0]). Within the study population, children with a hypomorphic SI variant had a more severe GI symptom burden than those without, including: more frequent episodes of loose stools (P < .01), higher overall stool frequency (P < .01), looser stool form (P = .01) and increased flatulence (P = .02).

conclusionNon-Hispanic white children with chronic idiopathic loose stools have a higher prevalence of CSID-associated hypomorphic SI variants than the general population. The GI symptom burden was greater among the study subjects with a hypomorphic SI variant than those without hypomorphic SI variants.

Indexed as

AdolescentCarbohydrate Metabolism, Inborn ErrorsChildDatabases, FactualFemaleGenotypeHeterozygoteHumansMalePolymorphism, Single NucleotidePrevalenceProspective StudiesSucrase-Isomaltase ComplexSucrase-Isomaltase Complex

Identifiers

PMID32433684
PMCPMC7239456
OpenAlexW3026115120

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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.