G2Cdb::Allele report

Mutation type

Altered genes (1)

Gene Symbol Species Description
G00001369 HOMER1 Homo sapiens homer homolog 1 (Drosophila)

Diseases (1)

Disease Description Nervous effect
D00000164 Cocaine dependence Y

Literature (1)

Pubmed - other

  • Association of a polymorphism in the Homer1 gene with cocaine dependence in an African American population.

    Dahl JP, Kampman KM, Oslin DW, Weller AE, Lohoff FW, Ferraro TN, O'Brien CP and Berrettini WH

    Department of Psychiatry, Center for Neurobiology and Behavior, University of Pennsylvania School of Medicine, Clinical Research Building, Philadelphia, 19104, USA. jdahl@mail.med.upenn.edu

    Objective: While twin and adoption studies have demonstrated that up to 70% of the risk for becoming addicted to cocaine is due to genetic factors, identifying specific genes involved in the development or progression of cocaine dependence has been difficult. The purpose of this study is to determine whether single-nucleotide polymorphisms in the Homer1 and Homer2 genes associate with the cocaine-dependent phenotype in an African American population.

    Methods: This study utilized a case-control design in which the genotype and allele frequencies for four single-nucleotide polymorphisms in the Homer1 gene and three single-nucleotide polymorphisms in the Homer2 gene were compared between African American individuals with a diagnosis of cocaine dependence (n=170) and African American individuals with no history of substance abuse (n=90).

    Results: The data indicate that one single-nucleotide polymorphism, rs6871510, located in intron 1 of the Homer1 gene significantly (P=0.029) associates with cocaine dependence at the genotype level, and trends toward a significant association at the allele frequency level (chi=2.62, df=1, P=0.106, OR=1.71). None of the single-nucleotide polymorphisms analyzed in the Homer2 gene associates with cocaine dependence.

    Conclusions: The results of this study suggest that a polymorphism in the Homer1 gene, rs6871510, is a potential risk factor for the development of cocaine dependence in an African American population, whereas polymorphisms in the Homer2 gene are not.

    Funded by: NIDA NIH HHS: T32 DA07241-12; PHS HHS: P60-051186

    Psychiatric genetics 2005;15;4;277-83

© G2C 2014. The Genes to Cognition Programme received funding from The Wellcome Trust and the EU FP7 Framework Programmes:
EUROSPIN (FP7-HEALTH-241498), SynSys (FP7-HEALTH-242167) and GENCODYS (FP7-HEALTH-241995).

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