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Neurosci Lett. 2005 May 20-27;380(1-2):37-41. Epub 2005 Feb 1.

Vitamin D receptor variants in 192 patients with schizophrenia and other psychiatric diseases.

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Department of Molecular Genetics and Molecular Diagnosis, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA 91010-3000, USA.


Intriguing parallels have been noted previously between the biology of Vitamin D and the epidemiology of schizophrenia. We have scanned the Vitamin D receptor (VDR) gene by DOVAM-S (Detection of Virtually All Mutations-SSCP), a robotically enhanced multiplexed scanning method. In total, 100 patients with schizophrenia (86 Caucasians and 14 African-Americans) were scanned. In addition, pilot experiments were performed in patients with bipolar disorder (BPD) (24), autism (24), attention deficit hyperactivity disorder (ADHD) (24), and alcoholism (20). A total of 762 kb of the VDR genomic sequence was scanned. R208N and V339I were each found in one African-American patient, while absent in 35 African-American controls without schizophrenia (2/14 versus 0/35, P=0.08). Within the power of the study (> or =1.6-fold relative risk), the common M1T variant is not associated with schizophrenia. In the 92 scanned patients with other psychiatric diseases, R173S was found in a single patient with bipolar disorder. In conclusion, we describe three novel structural variants of the Vitamin D receptor. Further study is required to clarify their role, if any, in psychiatric disease.

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