Evidence map›Paper›PMID 19585610›Full record

ArticleHepatology (Baltimore, Md.)2009

Keratin variants are overrepresented in primary biliary cirrhosis and associate with disease severity.

Bihui Zhong, Pavel Strnad, Carlo Selmi, Pietro Invernizzi, Guo-Zhong Tao, Angela Caleffi, Minhu Chen, Ilaria Bianchi, Mauro Podda, Antonello Pietrangelo and 2 more

Open access · greenAbstract read
In one paragraph

Article in Hepatology (Baltimore, Md.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

  1. Machine Learning Predicts Treatment Response and Prognostic Pathways From Whole-Blood Transcriptome in Primary Biliary Cholangitis.Liver international : official journal of the International Association for the Study of the Liver · 2026
    Article
  2. Review
  3. Review
  4. Liver disease-associated keratin 8 and 18 mutations modulate keratin acetylation and methylation.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  5. Article
  6. Intermediate filament proteins of digestive organs: physiology and pathophysiology.American journal of physiology. Gastrointestinal and liver physiology · 2017
    Review
  7. Review
  8. Review
  9. Absence of keratin 8 or 18 promotes antimitochondrial autoantibody formation in aging male mice.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2015
    Article
  10. Article
  11. Article
  12. Article
  13. Cytokeratins in gastroenterology. Systematic review.Przeglad gastroenterologiczny · 2015
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Keratin 8 variants are associated with cryptogenic hepatitis.Virchows Archiv : an international journal of pathology · 2012
    Article
  20. 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

12 authors at 7 institutions in 4 countries.

Bihui ZhongDivision of Gastroenterology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Pavel Strnad
Carlo Selmi
Pietro Invernizzi
Guo-Zhong Tao
Angela Caleffi
Minhu Chen
Ilaria Bianchi
Mauro Podda
Antonello Pietrangelo
M Eric Gershwin
M Bishr Omary
University of Milan · ITSun Yat-sen University · CNUniversity of Modena and Reggio Emilia · ITStanford University · USUniversität Ulm · DEUniversity of California, Davis · USUniversity of Michigan–Ann Arbor · US

Funding

Proteomics/GenomicsP30DK056339 · NIDDK · STANFORD UNIVERSITY · PI GREENBERG, HARRY BERNARD · 2001 to 2010
$10.4M
Regulation and Dynamics of Keratins in Digestive OrgansR01DK052951 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI OMARY, BISHR · 1997 to 2015
$4.5M
MECHANISMS AND PATHOGENESIS OF PRIMARY BILIARY CIRRHOSISR37DK039588 · NIDDK · UNIVERSITY OF CALIFORNIA DAVIS · PI GERSHWIN, MERRILL E · 2001 to 2010
$3.5M
MECHANISMS AND PATHOGENESIS OF PRIMARY BILIARY CIRRHOSISR01DK039588 · NIDDK · UNIVERSITY OF CALIFORNIA DAVIS · PI GERSHWIN, MERRILL E · 1988 to 2015
$2.0M
Genetic and molecular effects on hepatocyte nucleocytoplasm protein aggregationR56DK052951 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI OMARY, BISHR · 2012 to 2012
$179k
NIDDK NIH HHS DK39588NIDDK NIH HHS DK52951NIDDK NIH HHS DK56339NIDDK NIH HHS P30 DK056339NIDDK NIH HHS R01 DK039588NIDDK NIH HHS R01 DK052951NIDDK NIH HHS R37 DK039588NIDDK NIH HHS R56 DK052951
6 · The paper itself

Abstract

unlabelledKeratins (K) 8 and 18 variants predispose carriers to the development of end-stage liver disease and patients with chronic hepatitis C to disease progression. Hepatocytes express K8/K18, whereas biliary epithelia express K8/K18/K19. K8-null mice, which are predisposed to liver injury, spontaneously develop anti-mitochondrial antibodies (AMA) and have altered hepatocyte mitochondrial size and function. There is no known association of K19 with human disease and no known association of K8/K18/K19 with human autoimmune liver disease. We tested the hypothesis that K8/K18/K19 variants associate with primary biliary cirrhosis (PBC), an autoimmune cholestatic liver disease characterized by the presence of serum AMA. In doing so, we analyzed the entire exonic regions of K8/K18/K19 in 201 Italian patients and 200 control blood bank donors. Five disease-associated keratin heterozygous variants were identified in patients versus controls (K8 G62C/R341H/V380I, K18 R411H, and K19 G17S). Four variants were novel and included K19 G17S/V229M/N184N and K18 R411H. Overall, heterozygous disease-associated keratin variants were found in 17 of 201 (8.5%) PBC patients and 4 of 200 (2%) blood bank donors (P < 0.004, odds ratio = 4.53, 95% confidence interval = 1.5-13.7). Of the K19 variants, K19 G17S was found in three patients but not in controls and all K8 R341H (eight patients and three controls) associated with concurrent presence of the previously described intronic K8 IVS7+10delC deletion. Notably, keratin variants associated with disease severity (12.4% variants in Ludwig stage III/IV versus 4.2% in stages I/II; P < 0.04, odds ratio = 3.25, 95% confidence interval = 1.02-10.40), but not with the presence of AMA.

conclusionK8/K18/K19 variants are overrepresented in Italian PBC patients and associate with liver disease progression. Therefore, we hypothesize that K8/K18/K19 variants may serve as genetic modifiers in PBC.

Indexed as

AdultAgedAnimalsFemaleGallbladderGenetic VariationHumansJejunumKeratin-18Keratin-19Keratin-8LiverLiver Cirrhosis, BiliaryMaleMiceMiddle AgedKeratin-18Keratin-19Keratin-8

Identifiers

PMID19585610
PMCPMC2756069
OpenAlexW2007814093

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.