Evidence map›Paper›PMID 28595269›Full record

ArticleHuman molecular genetics2017

Identification of a rare LAMB4 variant associated with familial diverticulitis through exome sequencing.

Joel L Coble, Kathryn E Sheldon, Feng Yue, Tarik J Salameh, Leonard R Harris, Sue Deiling, Francesca M Ruggiero, Melanie A Eshelman, Gregory S Yochum, Walter A Koltun and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. The Epidemiology of Diverticulitis.Clinics in colon and rectal surgery · 2025
    Review
  5. Utilization of Genetically Inferred Pedigrees in a Large Clinical Population to Study Diverticulitis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Article
  6. Review
  7. Review
  8. Role of Inflammation in Pathophysiology of Colonic Disease: An Update.International journal of molecular sciences · 2020
    Review
  9. Colonic diverticular disease.Nature reviews. Disease primers · 2020
    Review
  10. Etiopathogenetic Mechanisms in Diverticular Disease of the Colon.Cellular and molecular gastroenterology and hepatology · 2020
    Review
  11. Structural biology of laminins.Essays in biochemistry · 2019
    Review
  12. Article
  13. Review
  14. Review
  15. Review
  16. 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

12 authors at 3 institutions in 1 country.

Joel L CobleDepartment of Biochemistry and Molecular Biology.
Kathryn E SheldonDepartment of Biochemistry and Molecular Biology.
Feng YueDepartment of Biochemistry and Molecular Biology.
Tarik J SalamehDepartment of Biochemistry and Molecular Biology.
Leonard R HarrisDepartment of Surgery, Division of Colon and Rectal Surgery.
Sue DeilingDepartment of Surgery, Division of Colon and Rectal Surgery.
Francesca M RuggieroDivision of Anatomical Pathology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
Melanie A EshelmanDepartment of Biochemistry and Molecular Biology.
Gregory S YochumDepartment of Biochemistry and Molecular Biology.
Walter A KoltunDepartment of Surgery, Division of Colon and Rectal Surgery.
Glenn S GerhardDepartment of Medical Genetics and Molecular Biochemistry, Temple University College of Medicine, Philadelphia, PA 19140, USA.
James R BroachDepartment of Biochemistry and Molecular Biology.
Colon and Rectal Surgery Associates · USPennsylvania State University · USTemple University · US

Funding

Penn State Clinical and Translational Science InstituteUL1TR002014 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KRASCHNEWSKI, JENNIFER L. · 2016 to 2025
$33.7M
NRSA Training CoreTL1TR002016 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI THOMAS, GAIL D. · 2016 to 2025
$3.4M
NCATS NIH HHS TL1 TR002016NCATS NIH HHS UL1 TR002014
6 · The paper itself

Abstract

Diverticulitis is a chronic disease of the colon in which diverticuli, or outpouching through the colonic wall, become inflamed. Although recent observations suggest that genetic factors may play a significant role in diverticulitis, few genes have yet been implicated in disease pathogenesis and familial cases are uncommon. Here, we report results of whole exome sequencing performed on members from a single multi-generational family with early onset diverticulitis in order to identify a genetic component of the disease. We identified a rare single nucleotide variant in the laminin β 4 gene (LAMB4) that segregated with disease in a dominant pattern and causes a damaging missense substitution (D435N). Targeted sequencing of LAMB4 in 148 non-familial and unrelated sporadic diverticulitis patients identified two additional rare variants in the gene. Immunohistochemistry indicated that LAMB4 localizes to the myenteric plexus of colonic tissue and patients harboring LAMB4 variants exhibited reduced LAMB4 protein levels relative to controls. Laminins are constituents of the extracellular matrix and play a major role in regulating the development and function of the enteric nervous system. Reduced LAMB4 levels may therefore alter innervation and morphology of the enteric nervous system, which may contribute to colonic dysmotility associated with diverticulitis.

Indexed as

AdultDiverticulitisExomeExome SequencingFemaleGenetic Predisposition to DiseaseHumansLamininMaleMiddle AgedPedigreePolymorphism, Single NucleotideSequence Analysis, DNALaminin

Identifiers

PMID28595269
PMCPMC6251658
OpenAlexW2623411366

What OpenQuestion holds

Textmetadata
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.