Cited by 60Schizophrenia research and treatmentBipolar Disorder and TreatmentGenetic Associations and Epidemiology

Common variation in NCAN, a risk factor for bipolar disorder and schizophrenia, influences local cortical folding in schizophrenia

Schultz, C. C., Mühleisen, T. W., Nenadic, I., Koch, K., Wagner, G., Schachtzabel, C., Siedek, F., Nöthen, M. M. +7 more·2014·Psychological Medicine

Abstract

Background: Recent studies have provided strong evidence that variation in the gene neurocan (NCAN, rs1064395) is a common risk factor for bipolar disorder (BD) and schizophrenia. However, the possible relevance of NCAN variation to disease mechanisms in the human brain has not yet been explored. Thus, to identify a putative pathomechanism, we tested whether the risk allele has an influence on cortical thickness and folding in a well-characterized sample of patients with schizophrenia and healthy controls. Method: Sixty-three patients and 65 controls underwent T1-weighted magnetic resonance imaging (MRI) and were genotyped for the single nucleotide polymorphism (SNP) rs1064395. Folding and thickness were analysed on a node-by-node basis using a surface-based approach (FreeSurfer). Results: In patients,NCAN risk status (defined by AA and AG carriers) was found to be associated with higher folding in the right lateral occipital region and at a trend level for the left dorsolateral prefrontal cortex. Controls did not show any association (p > 0.05). For cortical thickness, there was no significant effect in either patients or controls. Conclusions: This study is the first to describe an effect of the NCAN risk variant on brain structure. Our data show that the NCAN risk allele influences cortical folding in the occipital and prefrontal cortex, which may establish disease susceptibility during neurodevelopment. The findings suggest that NCAN is involved in visual processing and top-down cognitive functioning. Both major cognitive processes are known to be disturbed in schizophrenia. Moreover, our study reveals new evidence for a specific genetic influence on local cortical folding in schizophrenia.

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Crossref · 10.1017/s0033291713001414

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Authors
Schultz, C. C., Mühleisen, T. W., Nenadic, I., Koch, K., Wagner, G., Schachtzabel, C., Siedek, F., Nöthen, M. M., Rietschel, M., Deufel, T., Kiehntopf, M., Cichon, S., Reichenbach, J. R., Sauer, H., & Schlösser, R. G. M.
Affiliations
  • Jena University Hospital (DE)
  • University of Bonn (DE)
  • TUM Klinikum (DE)
  • Heidelberg University (DE)
Corresponding author
Schultz, C. C.
Venue
Psychological Medicine
Published
2013-06-24
Volume
44
Issue
4
Pages
811-820
ISSN
  • 0033-2917 (ISSN-L)
  • 1469-8978
OpenAlex
W1973986610
Cited by
60
References
66
Citations by year
2025: 4 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 4 · 2020: 13 · 2019: 4 · 2018: 5 · 2017: 5 · 2016: 8 · 2015: 4 · 2014: 5
FWCI
4.00
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • edoc (University of Basel) (submittedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
Funders
Bundesministerium für Bildung und Forschung
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
neurocan, schizophrenia, bipolar disorder, single nucleotide polymorphisms, cortical folding, cortical thickness, lateral occipital cortex, dorsolateral prefrontal cortex, brain development, genetic risk factors, brain structure
MeSH terms
Adult, Bipolar Disorder, Cerebral Cortex, Genotype, Humans, Magnetic Resonance Imaging, Nerve Tissue Proteins, Occipital Lobe, Chondroitin Sulfate Proteoglycans, Risk, Schizophrenia, Prefrontal Cortex, Polymorphism, Single Nucleotide, Lectins, C-Type, Neurocan

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