Geoepidemiology, Genetic and Environmental Risk Factors for PBC

Haiyan Zhang, Marco Carbone, Ana Lleo, Pietro Invernizzi

Research output: Contribution to journalReview article

15 Citations (Scopus)

Abstract

Primary biliary cirrhosis (PBC) is the most paradigmatic autoimmune liver disease with still several controversial issues in epidemiology, diagnosis, causation, and therapy. Although we are witnessing an enormous increase in the quantum of our basic knowledge of the disease with an initial translation in clinical practice, there are still a number of key open questions in PBC. Among them are the following questions: Why are there vast geographical variations in disease frequency? What are the reasons for female preponderance? Why do only small-size bile ducts get affected: What is the real role of genetics and epigenetics in its development? In particular, the prevalence of PBC is known to vary both on an international and a regional level, suggesting the existence of substantive geographical differences in terms of genetic susceptibility and environmental factors. New theories on potential environmental triggers, such as chemical xenobiotics, which lead to the breaking of self-tolerance within a unique immunological milieu of the liver, have been suggested. On the other hand, new and solid data on the genetic architecture of PBC are now obtained from recent high-throughput studies, together with data on sex chromosomes defects, and epigenetic abnormalities, thus strongly suggesting a role of genetic and epigenetic factors in the triggering and perpetuation of the autoimmune aggression in PBC. Based on these evidences, a number of novel drugs directed against specific immune-related molecules are currently under development. In this paper, we review a comprehensive collection of current epidemiological reports from various world regions. We also discuss here the most recent data regarding candidate genetic and environmental risk factors for PBC.

Original languageEnglish (US)
Pages (from-to)94-101
Number of pages8
JournalDigestive Diseases
Volume33
DOIs
StatePublished - 2015
Externally publishedYes

Fingerprint

Biliary Liver Cirrhosis
Epigenomics
Self Tolerance
Sex Chromosomes
Xenobiotics
Genetic Predisposition to Disease
Bile Ducts
Aggression
Causality
Autoimmune Diseases
Liver Diseases
Epidemiology
Liver
Pharmaceutical Preparations

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Geoepidemiology, Genetic and Environmental Risk Factors for PBC. / Zhang, Haiyan; Carbone, Marco; Lleo, Ana; Invernizzi, Pietro.

In: Digestive Diseases, Vol. 33, 2015, p. 94-101.

Research output: Contribution to journalReview article

Zhang, H, Carbone, M, Lleo, A & Invernizzi, P 2015, 'Geoepidemiology, Genetic and Environmental Risk Factors for PBC', Digestive Diseases, vol. 33, pp. 94-101. https://doi.org/10.1159/000440754
Zhang, Haiyan ; Carbone, Marco ; Lleo, Ana ; Invernizzi, Pietro. / Geoepidemiology, Genetic and Environmental Risk Factors for PBC. In: Digestive Diseases. 2015 ; Vol. 33. pp. 94-101.
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