Research Topics
Genomes and GenesSpecies | Thomas WassinkSummaryAffiliation: University of Iowa Country: USA Publications
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Publications
Tumor necrosis factor receptor-II: heritability and effect on brain morphology in schizophreniaT H Wassink
Department of Psychiatry, University of Iowa College of Medicine, Iowa City 52242, USA
Mol Psychiatry 5:678-82. 2000..We found no support, therefore, for TNF-RII as a disease susceptibility gene for schizophrenia. The gene may, however, modify phenotypic aspects of the disease such as brain morphology and age of onset of illness...
Influence of ZNF804a on brain structure volumes and symptom severity in individuals with schizophreniaThomas H Wassink
Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
Arch Gen Psychiatry 69:885-92. 2012..Our study supports this assertion by finding that specific genotypes of the polymorphism are associated with brain structure volumes in individuals with schizophrenia and healthy volunteers and with symptom severity in schizophrenia...
Correlation of CAG repeat length between the maternal and paternal allele of the Huntingtin gene: evidence for assortative matingPeg Nopoulos
Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
Behav Brain Funct 7:45. 2011..The current study shows a significant correlation between the CAG repeat length of the maternal and paternal allele in the Huntingtin gene among healthy subjects, suggesting assortative mating...
Posterior probability of linkage analysis of autism dataset identifies linkage to chromosome 16Thomas H Wassink
Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
Psychiatr Genet 18:85-91. 2008..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...
Systematic screening for subtelomeric anomalies in a clinical sample of autismThomas H Wassink
Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
J Autism Dev Disord 37:703-8. 2007..2 in subgroups of our sample. We conclude that while karyotyping may be more broadly indicated for autism than previously supposed, subtelomere FISH appears less likely to be a useful screening tool for unselected PDD populations...
Evaluation of the chromosome 2q37.3 gene CENTG2 as an autism susceptibility geneThomas H Wassink
Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, 52242, USA
Am J Med Genet B Neuropsychiatr Genet 136:36-44. 2005..We conclude, therefore, that 2q37.3 continues to be a region of interest for autism susceptibility, and that CENTG2 is an intriguing candidate gene that merits further scrutiny for its role in autism...
A case of autism and uniparental disomy of chromosome 1Thomas H Wassink
Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
Hum Genet 117:200-6. 2005..In agreement with this, one of the regions of isodisomy overlaps an emerging chromosome 1 region of interest in autism located at 150-160 Mb...
The search for autism disease genesThomas H Wassink
Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
Ment Retard Dev Disabil Res Rev 10:272-83. 2004....
Examination of AVPR1a as an autism susceptibility geneT H Wassink
Department of Psychiatry, University of Iowa College of Medicine, Iowa City, IA 52242, USA
Mol Psychiatry 9:968-72. 2004..Given the emerging biological, animal model, and now genetic data, AVPR1a and genes in the AVP system remain strong candidates for involvement in autism susceptibility and deserve continued scrutiny...
NOTCH4 and the frontal lobe in schizophreniaThomas H Wassink
Department of Psychiatry, Psychiatry Research MEB, University of Iowa College of Medicine, Iowa City, IA 52242, USA
Am J Med Genet B Neuropsychiatr Genet 118:1-7. 2003..These findings may reflect the interaction of NOTCH4 with the underlying genetic and phenotypic complexity that characterizes both schizophrenia and normal cognition and brain development...
Heritability of BDNF alleles and their effect on brain morphology in schizophreniaT H Wassink
Mental Health Clinical Research Center, Department of Psychiatry, University of Iowa College of Medicine, Iowa
Am J Med Genet 88:724-8. 1999..We did not find support for BDNF as a disease gene for schizophrenia. Allelic variability of the gene may, however, influence brain morphology in these same subjects. Am. J. Med. Genet. (Neuropsychiatr. Genet.) 88:724-728, 1999...
Prevalence of depressive symptoms early in the course of schizophreniaT H Wassink
Mental Health Clinical Research Center, Department of Psychiatry, University of Iowa Hospitals and Clinics, University of Iowa College of Medicine, Iowa City 52242, USA
Am J Psychiatry 156:315-6. 1999..The rate of depressive symptoms early in the course of schizophrenia was determined...
Evidence supporting WNT2 as an autism susceptibility geneT H Wassink
Department of Psychiatry, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA
Am J Med Genet 105:406-13. 2001....
Chromosomal abnormalities in a clinic sample of individuals with autistic disorderT H Wassink
Department of Psychiatry, University of Iowa College of Medicine, Iowa City, USA
Psychiatr Genet 11:57-63. 2001..These data support the contribution of chromosomal abnormalities to a small but significant number of cases of autism, and highlight the involvement of chromosome 15 and the sex chromosomes...
Evaluation of FOXP2 as an autism susceptibility geneThomas H Wassink
Department of Psychiatry, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA
Am J Med Genet 114:566-9. 2002..We conclude that FOXP2 is unlikely to contribute significantly to autism susceptibility...
Cerebral cortex structure in prodromal Huntington diseasePeggy C Nopoulos
Department of Psychiatry, University of Iowa Roy and Lucille Carver College of Medicine, Iowa City, IA 52242, USA
Neurobiol Dis 40:544-54. 2010..Early in the course of HD, the cortex shows changes that are manifest as cortical thinning and are most robust in the posterior and superior regions of the cerebrum...
Population-based association analyses of the HOPA12bp polymorphism for schizophrenia and hypothyroidismR A Philibert
Department of Psychiatry, The University of Iowa, Iowa City 52242 1000, USA
Am J Med Genet 105:130-4. 2001....
Catechol-O-methyl transferase Val158Met gene polymorphism in schizophrenia: working memory, frontal lobe MRI morphology and frontal cerebral blood flowB C Ho
Department of Psychiatry, Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, IA 52252, USA
Mol Psychiatry 10:229, 287-98. 2005..Age-related changes and phenotypic heterogeneity of schizophrenia may influence the complex relationships between COMT genotype and cognition...
Pax6 3' deletion results in aniridia, autism and mental retardationL K Davis
Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA
Hum Genet 123:371-8. 2008..3 Mb deletion that disrupts PAX6 transcriptional activity and deletes additional genes expressed in the brain. Our findings provide continued evidence for the role of PAX6 in neural phenotypes associated with aniridia...
Association between brain-derived neurotrophic factor Val66Met gene polymorphism and progressive brain volume changes in schizophreniaBeng Choon Ho
Department of Psychiatry, University of Iowa College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242, USA
Am J Psychiatry 164:1890-9. 2007..Factors underlying progressive brain volume changes in schizophrenia remain poorly understood. The authors investigated whether a gene polymorphism influencing neuroplasticity may contribute to longitudinal brain volume alterations...
Cerebral cortical gray matter overgrowth and functional variation of the serotonin transporter gene in autismThomas H Wassink
Department of Psychiatry, The University of Iowa, USA
Arch Gen Psychiatry 64:709-17. 2007..Autism is a heritable neurodevelopmental disorder characterized biologically by enlargement of the head and brain and abnormalities of serotonin neurotransmission...
Cortical enlargement in autism is associated with a functional VNTR in the monoamine oxidase A geneLea K Davis
Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242, USA
Am J Med Genet B Neuropsychiatr Genet 147:1145-51. 2008..Future studies will determine if there is a more severe clinical phenotype associated with both the "low activity" genotype and the larger brain volumes in our sample...
Cognitive and magnetic resonance imaging brain morphometric correlates of brain-derived neurotrophic factor Val66Met gene polymorphism in patients with schizophrenia and healthy volunteersBeng Choon Ho
Department of Psychiatry, Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, USA
Arch Gen Psychiatry 63:731-40. 2006..Its role in determining cognitive deficits in schizophrenia has also not been systematically studied...
An association study of PCQAP polymorphisms and schizophreniaHarinder K Sandhu
Department of Psychiatry, The University of Iowa, Iowa City, Iowa 52242 1000, USA
Psychiatr Genet 14:169-72. 2004..Recently, DeLuca and colleagues reported that polymorphisms in a trinucleotide repeat in exon 7 of PCQAP were associated with schizophrenia in a case-control study of Italian schizophrenics...
Mapping autism risk loci using genetic linkage and chromosomal rearrangementsPeter Szatmari
Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
Nat Genet 39:319-28. 2007..Neurexins team with previously implicated neuroligins for glutamatergic synaptogenesis, highlighting glutamate-related genes as promising candidates for contributing to ASDs...
Research Grants
- A MULTI-FACETED SEARCH FOR AUTISM DISEASE GENESThomas Wassink; Fiscal Year: 2004..Taken together, the training plan and research proposal provide for a breadth of training, the potential for meaningful discovery, and support for the establishment of an independent research career. ..
- MOLECULAR GENETICS OF AUTISMThomas Wassink; Fiscal Year: 2006..The WNT2 findings will be further examined in two-independent patient samples. ..
- Genetic Determinants of Brain Structure and Disease Risk in SchizophreniaThomas H Wassink; Fiscal Year: 2010....
