Abstract:
BACKGROUND:A long-term controversy exists on whether or not major psychotic disorders can be discretely divided into two groups, for example, schizophrenia and bipolar disorder. Many genes and polymorphisms have been studied for a role in both disorders, including the Val66Met (also known as rs 6265 or G196A) variant of brain-derived neurotrophic factor (BDNF). Many case-control association studies have been performed to see if BDNF could serve as a useful clinical diagnostic biomarker for schizophrenia or bipolar disorder, but results have been equivocal. OBJECTIVE:To determine, by meta-analysis, if the Val66Met polymorphism of BDNF influences risk for either schizophrenia, bipolar disorder, or both. METHODS:We searched Pubmed, Medline, and PsycInfo using keywords including Val66Met, Rs6265, G196A, BDNF, schizophrenia, and bipolar disorder. A total of 13 studies for schizophrenia and 11 studies for bipolar disorder were combined by random-effects meta-analysis. MAIN RESULTS:The pooled results from the schizophrenia sample (2955 patients; 4035 controls) and the bipolar disorder sample (3143 patients; 6347 controls) indicated lack of significance with either of the two psychoses, with pooled odds ratios of 1.00 (P=0.944) and 0.95 (P=0.161), respectively. CONCLUSION:Although there are some limitations on the study, our results indicate there is a lack of association between the Val66Met polymorphism and either of the two psychoses. A larger sample size, and evaluation of more single-nucleotide polymorphisms are needed to obtain more robust and conclusive findings regarding the relationship between the BDNF gene and psychosis.
journal_name
Psychiatr Genetjournal_title
Psychiatric geneticsauthors
Kanazawa T,Glatt SJ,Kia-Keating B,Yoneda H,Tsuang MTdoi
10.1097/YPG.0b013e32801da2e2subject
Has Abstractpub_date
2007-06-01 00:00:00pages
165-70issue
3eissn
0955-8829issn
1473-5873pii
00041444-200706000-00006journal_volume
17pub_type
杂志文章,meta分析abstract:OBJECTIVE:To apply phenotypic and statistical methods designed to account for heterogeneity to linkage analyses of the autism Collaborative Linkage Study of Autism (CLSA) affected sibling pair families. METHOD:The CLSA contains two sets of 57 families each; Set 1 has been analyzed previously, whereas this study presen...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e3282f9b48e
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:The dopamine transporter gene (DAT1) is an established genetic risk factor for attention deficit hyperactivity disorder (ADHD). Therefore, we hypothesized that DAT1 may also influence the manifestation of ADHD-related traits in the normal population. METHODS:A quantitative association study was carried out ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0000000000000086
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVE:Novelty seeking is a trait that has been consistently associated with problem behaviours. There is evidence for heritability of novelty seeking, but the molecular genetic basis of the trait is still widely unclear. METHODS:The interaction between polymorphisms of catechol-O-methyltransferase (COMT) and serot...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e32833a212f
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Ethanol-induced dopamine (DA) release in the mesolimbic system may reinforce excessive alcohol intake and the progression of alcohol dependence. Within this reward system, the DA transporter (DAT1) plays a key role in the regulation of dopaminergic neurotransmission through presynaptic DA reuptake. OBJECTIV...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e32832a4f7b
更新日期:2009-06-01 00:00:00
abstract::A number of genes underlie the molecular bases of intelligence. Among these is probably CALL, a novel member of the L1 gene family of neural cell adhesion molecules. By using the single strand conformation polymorphism (SSCP) protocol, we screened the regions of the CALL gene corresponding to the 5' and 3' untranslate...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-199909000-00011
更新日期:1999-09-01 00:00:00
abstract::The 11th Annual Molecular Psychiatry Meeting was held from 8 to 10 February 2004, at the Treasure Mountain Inn in Park City, Utah. The meeting was hosted by Bill Byerley, University of California, Irvine. ...
journal_title:Psychiatric genetics
pub_type:
doi:10.1097/00041444-200506000-00002
更新日期:2005-06-01 00:00:00
abstract::There are many different genotyping technologies and chemistries. Other articles in this special issue focus on nanotechnology, bioinformatics, DNA chips and genotyping methods. This article focuses on four method categories not featured elsewhere in this, or the following special issue: (1) melting curve-based techno...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-200206000-00005
更新日期:2002-06-01 00:00:00
abstract::Gilles de la Tourette syndrome (GTS) (MIM 137580) is a complex neuropsychiatric disorder probably originating from a disturbed interplay of several neurotransmitter systems in the prefrontal-limbic-basal ganglia loop. Polygenetic multifactorial inheritance has been postulated; nevertheless, no confirmed susceptible ge...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e32833511ce
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVES:Monozygotic twins with near-identical genotypes and discordance for complex diseases represent an exceptional resource to ascertain disease etiology. This strategy has been particularly effective with the availability of high-resolution complete individual genome sequencing. The challenge is using effective ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0000000000000162
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Abnormal expressions of the N-methyl-D-aspartate receptor and its interacting postsynaptic density (PSD) molecules have been hypothesized to be involved in the pathophysiology of schizophrenia. Few studies have carried out association studies with DLG4 gene (coding PSD-95 protein) and sought to validate the ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e3283643671
更新日期:2013-12-01 00:00:00
abstract::Catechol-O-methyltransferase (COMT) metabolizes catecholamines such as dopamines, noradrenaline and adrenaline. It exists as common high and low activity alleles in the population (determined by a valine 158 methionine polymorphisms), and high red blood cell activity of COMT has previously been associated with schizop...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-199723000-00001
更新日期:1997-10-01 00:00:00
abstract::We report here linkage data on two families with multiple cases of schizophrenia originating from the genetically isolated population of Finland. We analyzed chromosomal DNA regions containing relevant candidate genes for schizophrenia and chromosomal regions which have been among the most widely studied in schizophre...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-199400430-00004
更新日期:1994-10-01 00:00:00
abstract:BACKGROUND:Recent research has shown that loneliness, a common problem in adolescence, may have a genetic basis. The evidence, though, was limited mostly to serotonin-related and dopamine-related genes. In the present study, we focused on the oxytocin receptor gene (OXTR). METHODS:Associations were examined in a longi...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e328363f631
更新日期:2013-10-01 00:00:00
abstract::As an initial step for genome-wide association studies, we sought an association between schizophrenia and 34 microsatellite markers on chromosomes 19, 20, 21 and 22 by a case-control design. The samples examined for an association were 168 schizophrenic patients and 146 control subjects in the Japanese population. Th...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-200010030-00006
更新日期:2000-09-01 00:00:00
abstract::Recent reports on susceptibility loci for manic depression have sparked lively debate. The pros and cons of these findings are discussed from a methodological vantage point, with implications for linkage studies generally. ...
journal_title:Psychiatric genetics
pub_type: 杂志文章,评审
doi:10.1097/00041444-199700710-00009
更新日期:1997-04-01 00:00:00
abstract::This study investigates the genetic association between methyl-CpG-binding domain (MBD) gene polymorphisms and schizophrenia. A total of 200 family trios consisting of fathers, mothers, and affected offspring with schizophrenia were recruited as our participants. Four tag SNPs on MBD1 (rs125555, rs140689, rs140687, an...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0000000000000042
更新日期:2014-10-01 00:00:00
abstract::The glycine receptor, which is a member of the ligand-gated ion channel superfamily, mediates synaptic inhibition in the spinal cord and other brain regions. This superfamily has been implicated in the pathogenesis of schizophrenia and other psychiatric diseases. The complete coding sequence and splice junctions of th...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-200103000-00009
更新日期:2001-03-01 00:00:00
abstract::In an epidemiologic sample of female-female twin pairs, we previously reported analyses of lifetime major depression. Because lifetime mania was not assessed, we could not differentiate unipolar from bipolar illness. Having completed such an evaluation in this sample, we now examine three questions: (i) does removing ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Animal and human studies have implicated oxytocin in affiliative and prosocial behaviors. We tested whether genetic variation in the oxytocin receptor (OXTR) gene is associated with conduct disorder (CD). Utilizing a family-based sample of adolescent probands recruited from an adolescent substance abuse treatment prog...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e32834c0cb2
更新日期:2012-04-01 00:00:00
abstract::The brain-derived neurotrophic factor (BDNF) is a secretory growth factor that promotes neuronal proliferation and survival, synaptic plasticity and long-term potentiation in the central nervous system. Brain-derived neurotrophic factor biosynthesis and secretion are chrono-topically regulated processes at the cellula...
journal_title:Psychiatric genetics
pub_type: 杂志文章,评审
doi:10.1097/YPG.0000000000000237
更新日期:2019-10-01 00:00:00
abstract::Evidence for a dysfunction of the N-methyl-D-aspartate (NMDA) type of ionotropic glutamate receptors in schizophrenic patients, comes from neurochemical and clinical pharmacologic data. Therefore, the NMDAR1 gene can be regarded as an interesting candidate gene for schizophrenia. Several groups have tried to identify ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-200412000-00013
更新日期:2004-12-01 00:00:00
abstract::Family, twin and adoption studies highlight the influence of genes in the aetiology of schizophrenia, though the mode of inheritance is unclear. We have been conducting a systematic search for major genes in schizophrenia using a series of multiply affected families and report preliminary results of linkage under hete...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-199505030-00004
更新日期:1995-10-01 00:00:00
abstract::The presence of genetic substructure has the potential to diminish the chances of detecting a linkage signal. Using a Markov chain Monte Carlo procedure developed by Pritchard and colleagues and implemented in the program STRUCTURE, we evaluated the evidence for genetic substructure using genotypes from 37 microsatell...
journal_title:Psychiatric genetics
pub_type: 杂志文章,多中心研究
doi:10.1097/00041444-200412000-00003
更新日期:2004-12-01 00:00:00
abstract::The frequencies of HLA class I (HLA-A, B, C) and class II (HLA-DR, DQ) antigens were measured in 107 unrelated schizophrenic subjects and the results compared with 264 controls from south-east Scotland and a second control group of 133 individuals from north-east England. The expression of HLA-B35 was significantly re...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-199622000-00004
更新日期:1996-07-01 00:00:00
abstract:OBJECTIVE:Epidemiological and clinical studies suggest that the rates of antisocial behavior, depression, and impulsive substance use are increased among individuals diagnosed with alcohol dependence relative to those who are not. Thus, the present study conducted genome-wide linkage scans of antisocial behavior, depre...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0b013e328353fb77
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To explore the effect of APOE polymorphisms on patients with cognitive impairments in The Chinese Han population. MATERIALS AND METHODS:A total of 1027 cases with Alzheimer's disease (AD), 40 cases with vascular dementia (VaD), 28 cases with behavioral variant frontotemporal dementia (bvFTD), 54 cases with s...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/YPG.0000000000000126
更新日期:2016-06-01 00:00:00
abstract::Dysregulation of the immune system has been suggested to play a role in the complex etiology of obsessive-compulsive disorder. In this context, tumor necrosis factor-alpha is considered an interesting candidate for genetic studies as overproduction of tumor necrosis factor-alpha, which may be genetically modulated, ca...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/01.ypg.0000185026.12687.92
更新日期:2006-02-01 00:00:00
abstract::A number of studies have observed associations between the serotonin 2A (5-HT2A) receptor and mental disorders. Here, we investigated correlations between polymorphisms (-1438G/A and 102T/C) of the 5-HT2A gene and personality traits in healthy Japanese volunteers (n = 239). The personality traits were evaluated using ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/00041444-200503000-00011
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVES:The genetic basis of schizophrenia is obscure. In an XX male patient with schizophrenia we previously showed that one X;Y translocation breakpoint was in pseudoautosomal region 1 (PAR1) with the effect that the proximal segment of PAR1 from the PAR1 boundary to acetylserotonin N-methyl transferase (ASMT) dis...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/01.ypg.0000056683.89558.1c
更新日期:2003-06-01 00:00:00
abstract::Numerous family, twin and adoption studies have reported a strong genetic component for attention deficit hyperactivity disorder (ADHD). In addition, an extensive amount of literature has implicated abnormalities of the dopaminergic system. In view of this evidence, genes that influence dopaminergic transmission have ...
journal_title:Psychiatric genetics
pub_type: 杂志文章
doi:10.1097/01.ypg.0000107932.32051.1c
更新日期:2004-06-01 00:00:00