Lack of evidence for association of primary sclerosing cholangitis and primary biliary cirrhosis with risk alleles for Crohn's disease in Polish patients
2008

No Link Found Between Crohn's Disease Genes and Liver Disorders

Sample size: 281 publication Evidence: moderate

Author Information

Author(s): Gaj Pawel, Habior Andrzej, Mikula Michal, Ostrowski Jerzy

Primary Institution: Medical Center for Postgraduate Education at the Maria Skłodowska-Curie Memorial Cancer Center, Institute of Oncology, Warsaw, Poland

Hypothesis

Can genetic variants associated with Crohn's disease also predispose individuals to primary sclerosing cholangitis and primary biliary cirrhosis?

Conclusion

The study found no genetic association between Crohn's disease risk alleles and primary sclerosing cholangitis or primary biliary cirrhosis in Polish patients.

Supporting Evidence

  • The study included 60 patients with Crohn's disease, 77 with primary sclerosing cholangitis, and 144 with primary biliary cirrhosis.
  • Strong associations were found between certain NOD2/CARD15 gene variants and Crohn's disease.
  • No associations were found between the studied genetic variants and primary sclerosing cholangitis or primary biliary cirrhosis.

Takeaway

Researchers looked at whether genes linked to Crohn's disease also affect liver diseases, but they found no connection.

Methodology

The study involved genotyping patients with Crohn's disease, primary sclerosing cholangitis, and primary biliary cirrhosis for specific genetic polymorphisms.

Limitations

The small sample size may limit the ability to detect true associations.

Participant Demographics

The study included Polish patients with Crohn's disease, primary sclerosing cholangitis, and primary biliary cirrhosis, as well as a control group of healthy volunteers.

Statistical Information

P-Value

0.005

Confidence Interval

95% CI = 1.34 – 4.75

Statistical Significance

p<0.008

Digital Object Identifier (DOI)

10.1186/1471-2350-9-81

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