Abstract:
:Dysfunctional mechanisms in the serotonergic system have been implicated in suicidal behavior among patients with schizophrenia. However, previous association analyses of major serotonin genes have provided inconsistent findings regarding their role in suicidal behavior. The goal of the current study was to identify single-nucleotide polymorphisms (SNP) within HTR2A that directly affect CpG methylation sites in schizophrenic patients with suicidal behavior. Furthermore, direct methylation analysis was performed using genomic DNA from peripheral leukocytes employing bisulfite pyrosequencing to assess the contributions of six CpG sites in HTR2A exon I in 67 schizophrenia patients assessed for lifetime suicide attempt. Potential methylation in 25 CpG SNPs across the entire HTR2A gene was analyzed considering their direct contribution to methylation. When we compared direct methylation between attempters and nonattempters, we found that only the polymorphic T102C (rs6313) was significantly different between the two groups (p = 0.02). Furthermore, in the potential methylation analysis, we found a nominal association with suicide attempt for six of the 25 SNPs analyzed, i.e. rs2770293 (p = 0.045), rs6313 (p = 0.033), rs17068986 (p = 0.029), rs4942578 (p = 0.024), rs1728872 (p = 0.014), and rs9534511 (p = 0.003). The results of this investigation provide preliminary evidence that the combined analysis of CpG SNPs and methylation may be useful for investigating the genetic and epigenetic factors involved in suicidal behavior.
journal_name
Neuropsychobiologyjournal_title
Neuropsychobiologyauthors
Bani-Fatemi A,Howe AS,Matmari M,Koga A,Zai C,Strauss J,De Luca Vdoi
10.1159/000441191subject
Has Abstractpub_date
2016-01-01 00:00:00pages
10-5issue
1eissn
0302-282Xissn
1423-0224pii
000441191journal_volume
73pub_type
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journal_title:Neuropsychobiology
pub_type: 杂志文章,随机对照试验
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更新日期:2012-01-01 00:00:00
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更新日期:2008-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118956
更新日期:1993-01-01 00:00:00
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doi:10.1159/000118337
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pub_type: 杂志文章
doi:10.1159/000119171
更新日期:1995-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2004-01-01 00:00:00
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
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更新日期:2006-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1159/000087557
更新日期:2005-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117844
更新日期:1981-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117945
更新日期:1983-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000054911
更新日期:2001-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118169
更新日期:1985-01-01 00:00:00
abstract::Single, 50- and 100-mg oral doses of phenobarbital and a matching placebo were administered double-blind to 8 young, healthy male subjects. Multilead electroencephalographic (EEG) samples were recorded prior to, and at regular intervals within the 2 h following administration. The EEG signal was processed by power spe...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
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更新日期:1990-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000098654
更新日期:2006-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000119041
更新日期:1990-01-01 00:00:00
abstract::Twenty-two female patients with anorexia nervosa, restricted type, 14-35 years old, were treated with a 4-month course of combined cognitive-behavioral therapy, nutritional counselling and antidepressant drugs (nortriptyline for 7, fluoxetine for 15). Patients were monitored for body mass index (BMI), for eating disor...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000119213
更新日期:1995-01-01 00:00:00
abstract::In this study, we examined the effect of the 5-HT2A,C receptor agonist (+/-)-1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) on locomotor activity and the head twitch response in rats by the repeated (twice daily for 4 days) subcutaneous administration of 0.9% saline (1 ml/kg) or (+/-)-3,4-Methylenedioxymethamphet...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000026474
更新日期:1998-01-01 00:00:00
abstract::Intermittent short-lived episodes of depression were examined in a group of 20 recurrent suicidal attempters without major depression, classified misleadingly as borderline personality disorders on DSM-IIIR, during careful prospective follow-up for between 4 and 6 months. The duration of depressions clustered tightly ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118606
更新日期:1989-01-01 00:00:00
abstract::Plasma cortisol, catecholamine and cyclic AMP levels, response to dexamethasone suppression test and platelet MAO activity have been determined in 15 patients suffering from bipolar affective psychosis, each examined during a depressive, a manic and an euthymic phase, and in 15 sex- and age-matched normal controls. Me...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118071
更新日期:1984-01-01 00:00:00
abstract::The responses of cortisol to acute administration of saline and of clonidine (2.5 micrograms/kg B.W.) were examined in 10 children and adolescents with major depressive disorder and in 10 age- and sex-matched controls. Clonidine administration did not inhibit cortisol secretion in controls or in patients, contrary to ...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000119022
更新日期:1993-01-01 00:00:00
abstract::A potential candidate gene that could contribute to the education process is the apolipoprotein E (apo E) gene that has been shown to correlate with memory function and memory decline. We measured apo E polymorphism in groups of probands with different levels of education selected from a population sample. In the grou...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000054890
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:In depressed patients, overstimulation of the hypothalamo-pituitary-adrenocortical (HPA) system, probably caused by glucocorticoid receptor resistance, is the most consistent neurobiological finding. Glucocorticoids themselves are reported to increase leptin synthesis and secretion in humans. METHODS:We exa...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000103573
更新日期:2007-01-01 00:00:00
abstract::In 63 depressed patients, the associations between severity of depression, psychomotor retardation, assessed by the Bech-Rafaelsen Melancholia Scale, and EEG spectral analysis were examined. Slow EEG activity (theta 2/alpha 1 bands) was positively and fast activity (alpha 3/beta bands) negatively correlated with the o...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118804
更新日期:1992-01-01 00:00:00
abstract::The effects of zolpidem or zaleplon on sleep architecture, respiratory patterns and performance were assessed at a simulated altitude of 4,000 m. Twelve male healthy subjects spent 4 nights in a decompression chamber, 1 at sea level (baseline), 3 at 4,000 m to test zolpidem (10 mg), zaleplon (10 mg) and placebo, given...
journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000076723
更新日期:2004-01-01 00:00:00