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Gathering the clues to rare gene variants contributing to schizophrenia
Date:2/20/2014

enia is several times lower than for the group of DD/ID/ASD. The total penetrance for any of these disorders is quite high, ranging from 10% for duplications at 16p13.11 to nearly 100% for the velocardiofacial syndrome region on chromosome 22. These findings will have implications for genetic counselling of carriers," said Kirov.

"It seems that we are at a critical point in the genetics of schizophrenia the identification of rare gene variants that substantially increase the risk for schizophrenia," said Dr. John Krystal, Editor of Biological Psychiatry. "However, we have a very limited understanding of how these genes alter brain development to produce schizophrenia and other disorders. This knowledge would seem to hold clues about mechanisms of prevention and treatment."

In addition, scientists do not yet understand why the genetics of schizophrenia is not tightly aligned with the symptoms of schizophrenia. In other words, gene variants that increase the risk for schizophrenia increase the risk for other disorders, such as developmental delay, autism, and bipolar disorder.

"The failure of our genome to follow DSM-V is not simply a shortcoming of our diagnostic manual, rather it is yet another reminder that there are fundamental aspects of the biology of psychiatric disorders that we do not understand," added Krystal.


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Contact: Rhiannon Bugno
Biol.Psych@utsouthwestern.edu
214-648-0880
Elsevier
Source:Eurekalert

Page: 1 2

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