Research Topics
Genomes and Genes
Species | Ayman H FanousSummaryCountry: USA Publications
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Detail Information
Publications
Genetic overlap of schizophrenia and bipolar disorder in a high-density linkage survey in the Portuguese Island populationAyman H Fanous
Mental Health Service Line, Washington VA Medical Center, Washington, DC, USA
Am J Med Genet B Neuropsychiatr Genet 159:383-91. 2012..These results suggest that high-density marker maps may provide greater power and precision in linkage studies than lower density maps. They also further support the hypothesis that SZ and BP share at least some risk alleles...
Novel linkage to chromosome 20p using latent classes of psychotic illness in 270 Irish high-density familiesAyman H Fanous
Washington VA Medical Center, Washington, DC, USA
Biol Psychiatry 64:121-7. 2008..Genetic heterogeneity may decrease the signal-to-noise ratio in linkage and association studies. Therefore, linkage studies of clinically homogeneous classes of psychotic illness may result in greater power to detect at least some loci...
Genetic variation in the serotonin 2A receptor and suicidal ideation in a sample of 270 Irish high-density schizophrenia familiesAyman H Fanous
Washington VA Medical Center, Virginia Commonwealth University, Richmond, Virginia, USA
Am J Med Genet B Neuropsychiatr Genet 150:411-7. 2009..Because of multiple testing, these results do not provide support for HTR2A as a susceptibility gene for psychotic illness, or for suicidal ideation within psychotic illness...
Genetics of clinical features and subtypes of schizophrenia: a review of the recent literatureAyman H Fanous
Washington VA Medical Center, 50 Irving Street NW, Washington, DC 20422, USA
Curr Psychiatry Rep 10:164-70. 2008..Future directions include using whole-genome association studies to search for genetic modifiers of schizophrenia...
A longitudinal study of personality and major depression in a population-based sample of male twinsAyman H Fanous
Washington VA Medical Center, Washington, DC 20422, USA
Psychol Med 37:1163-72. 2007..The relationship between personality and psychiatric illness is complex. It is not clear whether one directly causes the other...
A genome-wide scan for modifier loci in schizophreniaAyman H Fanous
Washington VA Medical Center, Washington, DC 20422, USA
Am J Med Genet B Neuropsychiatr Genet 144:589-95. 2007..06. We conclude that genes located near 9q33.1 and 14q24.2 may modify the clinical course and severity of schizophrenia. A gene in 6q may affect several clinical features of illness...
Association between the 5q31.1 gene neurogenin1 and schizophreniaAyman H Fanous
Washington VA Medical Center, Washington, District of Columbia, USA
Am J Med Genet B Neuropsychiatr Genet 144:207-14. 2007..This gene should be tested in additional and larger samples...
Relationship between a high-risk haplotype in the DTNBP1 (dysbindin) gene and clinical features of schizophreniaAyman H Fanous
Washington VA Medical Center Georgetown University Medical Center Schizophrenia Research Program, 50 Irving St NW, Washington, DC 20422, USA
Am J Psychiatry 162:1824-32. 2005....
Genetic heterogeneity, modifier genes, and quantitative phenotypes in psychiatric illness: searching for a frameworkA H Fanous
Washington VA Medical Center, Georgetown University Medical Center Schizophrenia Research Program, Washington DC 20008, USA
Mol Psychiatry 10:6-13. 2005..We describe five classes of genes and their predictions of the outcomes of family, twin, and several types of linkage studies. We go on to explore how these predictions can in turn be used to aid in the design of linkage studies...
The genetic relationship of personality to major depression and schizophreniaAyman H Fanous
Washington VA Medical Center Georgetown University Medical Center Schizophrenia Research Program, 50 Irving St NW, Washington, DC 20422, USA
Neurotox Res 6:43-50. 2004..Furthermore, although several putative susceptibility genes for schizophrenia have been reported and replicated, only one--catechol-O-methyltransferase (COMT)--has been tested in schizotypy...
The dystrobrevin binding protein 1 (DTNBP1) gene is associated with schizophrenia in the Irish Case Control Study of Schizophrenia (ICCSS) sampleBrien Riley
Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
Schizophr Res 115:245-53. 2009..DTNBP1 is associated with schizophrenia in many studies, but the associated alleles and haplotypes vary between samples...
Polymorphisms in SLC6A4, PAH, GABRB3, and MAOB and modification of psychotic disorder featuresSarah E Bergen
Virginia Commonwealth University, Department of Human and Molecular Genetics, Richmond, Virginia 23219, USA
Schizophr Res 109:94-7. 2009..031) and QPDTPHASE (chi-square=12.54, p=.028). Also, a significant association between the GABRB3 191 bp allele and the hallucinations factor was detected using QPDTPHASE (chi-square=15.51, p=.030), but not QTDT (chi-square=2.07, p=.560)...
Comprehensive gene-based association study of a chromosome 20 linked region implicates novel risk loci for depressive symptoms in psychotic illnessT Bernard Bigdeli
Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America
PLoS ONE 6:e21440. 2011..Prior genomewide scans of schizophrenia support evidence of linkage to regions of chromosome 20. However, association analyses have yet to provide support for any etiologically relevant variants...
No association of dysbindin with symptom factors of schizophrenia in an Irish case-control sampleSarah E Bergen
Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA 23219, USA
Am J Med Genet B Neuropsychiatr Genet 153:700-5. 2010..Several possibilities, such as differing risk haplotypes, may explain this finding...
Two non-synonymous markers in PTPN21, identified by genome-wide association study data-mining and replication, are associated with schizophreniaJingchun Chen
Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Suite 390, 800 E Leigh Street, Richmond, VA 23298, USA
Schizophr Res 131:43-51. 2011..Given the results that 2 non-synonymous markers in PTPN21 are associated with schizophrenia, further investigation of this locus is warranted...
Apoptotic engulfment pathway and schizophreniaXiangning Chen
Department of Psychiatry and Virginia Institute for Psychiatric and Behavior Genetics, Virginia Commonwealth University, Richmond, Virginia, USA
PLoS ONE 4:e6875. 2009..In this study, we followed the apoptotic engulfment pathway involving the MEGF10, GULP1, ABCA1 and ABCA7 genes and tested their association with the disease...
Genome-wide association study of clinical dimensions of schizophrenia: polygenic effect on disorganized symptomsAyman H Fanous
Mental Health Service Line, Washington, DC, USA
Am J Psychiatry 169:1309-17. 2012..The authors present the first genome-wide association study (GWAS) of dimensional symptom scores among individuals with schizophrenia...
Concordance between chart review and structured interview assessments of schizophrenic symptomsAyman H Fanous
Washington VA Medical Center, Washington, DC 20422, USA
Compr Psychiatry 53:275-9. 2012..We examined agreement between symptom ratings derived from direct patient interviews and from review of casenotes...
Detection of susceptibility genes as modifiers due to subgroup differences in complex diseaseSarah E Bergen
Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
Eur J Hum Genet 18:960-4. 2010..This may explain some of the inconsistent association results for many candidate gene studies of complex diseases...
Significant correlation in linkage signals from genome-wide scans of schizophrenia and schizotypyA H Fanous
Mental Health Service Line, Washington VA Medical Center, Washington, DC 20422, USA
Mol Psychiatry 12:958-65. 2007..Power may therefore be increased in molecular genetic studies of schizophrenia if they incorporate measures of schizotypy in non-psychotic relatives...
Clinical features of psychotic disorders and polymorphisms in HT2A, DRD2, DRD4, SLC6A3 (DAT1), and BDNF: a family based association studyAyman H Fanous
Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia, USA
Am J Med Genet B Neuropsychiatr Genet 125:69-78. 2004..However, given prior evidence of involvement of the proteins encoded by these genes in psychopathology, our results suggest that more attention should be focused on the impact of these alleles on clinical features of schizophrenia...
Genomewide association study of movement-related adverse antipsychotic effectsKarolina Aberg
Center for Biomarker Research and Personalized Medicine, School of Pharmacy, Medical College of Virginia of Virginia Commonwealth University, Richmond, Virginia 23298, USA
Biol Psychiatry 67:279-82. 2010..Understanding individual differences in the development of extrapyramidal side effects (EPS) as a response to antipsychotic therapy is essential to individualize treatment...
Association study of SNAP25 and schizophrenia in Irish family and case-control samplesA H Fanous
Washington VA Medical Center, Washington, DC 20422, USA
Am J Med Genet B Neuropsychiatr Genet 153:663-74. 2010..Although we failed to replicate this in an independent sample, this gene should be further tested in other samples...
Experimental validation of candidate schizophrenia gene ZNF804A as target for hsa-miR-137Albert H Kim
Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Medical College of Virginia of Virginia Commonwealth University, Richmond, VA, USA
Schizophr Res 141:60-4. 2012..2011) as hsa-miR-137 targets. Here, using in silico, cellular and luciferase based approaches we also provide evidence that another well replicated candidate schizophrenia gene, ZNF804A, is also target for hsa-miR-137...
Variants in the 15q25 gene cluster are associated with risk for schizophrenia and bipolar disorderKia J Jackson
Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia 23219, USA
Psychiatr Genet 23:20-8. 2013..To investigate this hypothesis, we examined the association of the 15q25 gene cluster, the most significant candidate region to date implicated in ND and smoking behavior, with schizophrenia and bipolar disorder...
Replication of association between schizophrenia and ZNF804A in the Irish Case-Control Study of Schizophrenia sampleB Riley
Department of Psychiatry, Virginia Commonwealth University, Richmond, VA 23298 0424, USA
Mol Psychiatry 15:29-37. 2010..This study replicates the original reported association of ZNF804A with schizophrenia and suggests that there is a consistent link between the A allele of rs1344706, increased expression of ZNF804A and risk for schizophrenia...
