Genetic contribution to alcohol dependence: Investigation of a heterogeneous german sample of individuals with alcohol dependence, chronic alcoholic pancreatitis, and alcohol-related cirrhosis

Treutlein, Jens; Frank, Josef; Streit, Fabian; Reinbold, Céline; Juraeva, Dilafruz; Degenhardt, Franziska; Rietschel, Liz; Witt, Stephanie; Forstner, Andreas; Ridinger, Monika; Strohmaier, Jana; Wodarz, Norbert; Dukal, Helene; Foo, Jerome; Hoffmann, Per; Herms, Stefan; Heilmann-Heimbach, Stefanie; Soyka, Michael; Maier, Wolfgang; Gaebel, Wolfgang; ... (2017). Genetic contribution to alcohol dependence: Investigation of a heterogeneous german sample of individuals with alcohol dependence, chronic alcoholic pancreatitis, and alcohol-related cirrhosis. Genes, 8(7), p. 183. MDPI, Molecular Diversity Preservation International 10.3390/genes8070183

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The present study investigated the genetic contribution to alcohol dependence (AD) using genome-wide association data from three German samples. These comprised patients with: (i) AD; (ii) chronic alcoholic pancreatitis (ACP); and (iii) alcohol-related liver cirrhosis (ALC). Single marker, gene-based, and pathway analyses were conducted. A significant association was detected for the ADH1B locus in a gene-based approach (puncorrected = 1.2 × 10-6; pcorrected = 0.020). This was driven by the AD subsample. No association with ADH1B was found in the combined ACP + ALC sample. On first inspection, this seems surprising, since ADH1B is a robustly replicated risk gene for AD and may therefore be expected to be associated also with subgroups of AD patients. The negative finding in the ACP + ALC sample, however, may reflect genetic stratification as well as random fluctuation of allele frequencies in the cases and controls, demonstrating the importance of large samples in which the phenotype is well assessed.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > University Psychiatric Services > University Hospital of Child and Adolescent Psychiatry and Psychotherapy
04 Faculty of Medicine > University Psychiatric Services > University Hospital of Child and Adolescent Psychiatry and Psychotherapy > Research Division

UniBE Contributor:

Rietschel, Liz

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2073-4425

Publisher:

MDPI, Molecular Diversity Preservation International

Language:

English

Submitter:

Livia Hug

Date Deposited:

08 Mar 2018 11:42

Last Modified:

22 Oct 2019 17:18

Publisher DOI:

10.3390/genes8070183

PubMed ID:

28714907

Uncontrolled Keywords:

ADH1B; ADH1C; alcohol dehydrogenase; alcohol dependence; alcoholic liver cirrhosis, chronic alcoholic pancreatitis, genome-wide association study

BORIS DOI:

10.7892/boris.109306

URI:

https://boris.unibe.ch/id/eprint/109306

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