Evidence map›Paper›PMID 35594281›Full record

SynthesisPloS one2022

Risk of chronic pancreatitis in carriers of loss-of-function CTRC variants: A meta-analysis.

Amanda Takáts, Gergő Berke, Noémi Gede, Balázs Csaba Németh, Heiko Witt, Stanisław Głuszek, Agnieszka Magdalena Rygiel, Péter Hegyi, Miklós Sahin-Tóth, Eszter Hegyi

Abstract readMeta-Analysis
In one paragraph

Synthesis in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Risk of chronic pancreatitis in carriers of the c.180C>T (p.Gly60=) CTRC variant: case-control studies and meta-analysis.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2023
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Secretagogue-induced pancreatitis in mice devoid of chymotrypsin.American journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
  8. Novel chymotrypsin C (CTRC) variants from real-world genetic testing of pediatric chronic pancreatitis cases.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2024
    Article
  9. Substrate specificity of human chymotrypsin-like protease (CTRL) characterized by phage display-selected small-protein inhibitors.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2023
    Article
  10. 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

10 authors.

Amanda TakátsInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Gergő BerkeInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Noémi GedeInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Balázs Csaba NémethDepartment of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary.
Heiko WittPediatric Nutritional Medicine & Else Kröner-Fresenius-Centre for Nutritional Medicine (EKFZ), Technical University Munich (TUM), Munich, Germany.
Stanisław GłuszekCollegium Medicum Jan Kochanowski University, Kielce, Poland.
Agnieszka Magdalena RygielDepartment of Medical Genetics, Institute of Mother and Child, Warsaw, Poland.
Péter HegyiInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Miklós Sahin-TóthDepartment of Surgery, University of California Los Angeles, Los Angeles, California, United States of America.
Eszter HegyiInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.ORCID 0000-0002-9137-7561

Funding

Chymotrypsin in pancreatitisR01DK082412 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SAHIN-TOTH, MIKLOS · 2009 to 2024
$5.8M
NIDDK NIH HHS R01 DK082412
6 · The paper itself

Abstract

The digestive protease chymotrypsin C (CTRC) protects the pancreas against pancreatitis by degrading potentially harmful trypsinogen. Loss-of-function genetic variants in CTRC increase risk for chronic pancreatitis (CP) with variable effect size, as judged by the reported odds ratio (OR) values. Here, we performed a meta-analysis of published studies on four variants that alter the CTRC amino-acid sequence, are clinically relatively common (global carrier frequency in CP >1%), reproducibly showed association with CP and their loss of function phenotype was verified experimentally. We found strong enrichment of CTRC variants p.A73T, p.V235I, p.K247_R254del, and p.R245W in CP cases versus controls, yielding OR values of 6.5 (95% confidence interval (CI) 2.4-17.8), 4.5 (CI 2.2-9.1), 5.4 (CI 2.6-11.0), and 2.6 (CI 1.6-4.2), respectively. Subgroup analysis demonstrated disease association of variants p.K247_R254del and p.R245W in alcoholic CP with similar effect sizes as seen in the overall CP group. Homozygosity or compound heterozygosity were rare and seemed to be associated with higher risk. We also identified a so far unreported linkage disequilibrium between variant p.K247_R254del and the common c.180C>T (p.G60 =) haplotype. Taken together, the results indicate that heterozygous loss-of-function CTRC variants increase the risk for CP approximately 3-7-fold. This meta-analysis confirms the clinical significance of CTRC variants and provides further justification for the genetic screening of CP patients.

Indexed as

ChymotrypsinPancreatitis, AlcoholicPancreatitis, ChronicGenetic Predisposition to DiseaseHumansMutationChymotrypsinchymotrypsin C

Identifiers

PMID35594281
PMCPMC9122191

What OpenQuestion holds

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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.