@article{ref1,
title="Methylation and QTDT analysis of the 5-HT2A receptor 102C allele: analysis of suicidality in major psychosis",
journal="Journal of psychiatric research",
year="2009",
author="De Luca, Vincenzo and Viggiano, Emanuela and Dhoot, Ranbir and Kennedy, James L. and Wong, Albert H. C.",
volume="43",
number="5",
pages="532-537",
abstract="Suicide is an act deliberately initiated and performed by a person with full knowledge that a fatal outcome is probable. The serotonin 2A (5-HT2A) receptor gene has been implicated in the pathogenesis of suicidal behaviour by a genetic association between the 5-HT2A T102C silent polymorphism and suicidality in patients with mood disorders and schizophrenia. However, a recent meta-analysis failed to confirm this association. We developed an improved quantitative assay for the measurement of allele-specific methylation of the 5-HT2A gene, and found that the methylation of the C allele in the pre-frontal cortex of heterozygous suicide victims (n=10) was not significantly different in comparison with the non-suicide group (n=10) (p=0.084). We also analyzed methylation of the C allele in white blood cell DNA from bipolar and schizophrenic attempters and found a significant difference in the schizophrenic attempters (p=0.00013) but not in the bipolar attempters (p=0.616). Because the 5-HT2A gene is subject to imprinting, the parent-of-origin may affect inheritance of suicidal behaviour. Thus, we examined the parental origin of specific alleles for genetic association in a genetic family-based sample of major psychoses in which information on suicidal behaviour was available. This result suggests that methylation of the 102C allele does not influence completed suicide.<p /><p>Language: en</p>",
language="en",
issn="0022-3956",
doi="10.1016/j.jpsychires.2008.07.007",
url="http://dx.doi.org/10.1016/j.jpsychires.2008.07.007"
}