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Frontiers Media, Frontiers in Genetics, (3)

DOI: 10.3389/fgene.2012.00116

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Genetic variation in Hyperpolarization-activated cyclic nucleotide-gated channels and its relationship with neuroticism, cognition and risk of depression

Journal article published in 2012 by Andrew Mark McIntosh ORCID, Arthur A. Simen, Kathryn L. Evans ORCID, Jeremy Hall, Donald J. MacIntyre, Douglas Blackwood, Andrew D. Morris, Blair H. Smith, Anna Dominiczak, David Porteous, hb Ian J. Deary, Pippa A. Thomson
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are encoded by four genes (HCN1–4) and, through activation by cyclic AMP (cAMP), represent a point of convergence for several psychosis risk genes. On the basis of positive preliminary data, we sought to test whether genetic variation in HCN1–4 conferred risk of depression or cognitive impairment in the Generation Scotland: Scottish Family Health Study. HCN1, HCN2, HCN3, and HCN4 were genotyped for 43 haplotype-tagging SNPs and tested for association with DSM-IV depression, neuroticism, and a battery of cognitive tests assessing cognitive ability, memory, verbal fluency, and psychomotor performance. No association was found between any HCN channel gene SNP and risk of depression, neuroticism, or on any cognitive measure. The current study does not support a genetic role for HCN channels in conferring risk of depression or cognitive impairment in individuals from the Scottish population.