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Genetic Variant Increases Risk Of Developing Schizophrenia In Women

Date:
February 19, 2008
Source:
Public Library of Science
Summary:
A complete scan of the human genome has revealed that a genetic variant in the Reelin gene increases the risk of developing schizophrenia in women only. Researchers who conducted the study in the Ashkenazi Jewish population, confirmed their findings by establishing a multinational collaboration that included populations and researchers from the United Kingdom, Ireland, United States, and China.

A complete scan of the human genome has revealed that a genetic variant in the Reelin gene increases the risk of developing schizophrenia in women only. Researchers from the Hebrew University of Jerusalem and the University of Oxford, who conducted the study in the Ashkenazi Jewish population, confirmed their findings by establishing a multinational collaboration that included populations and researchers from the United Kingdom, Ireland, United States, and China.

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Heritability of schizophrenia has been well established through epidemiological studies in past years. However, efforts to identify the genes associated with this devastating disease, which affects about 1% of the human population, have encountered significant difficulties. Technological advances that allow the complete and efficient scanning of the entire genome present a new opportunity to address this challenge.

The authors analyzed 500,000 genetic variants distributed across the whole human genome in DNA from patients with schizophrenia and control subjects. By comparing the genomes of hundreds of patients with schizophrenia with those of healthy controls across several human populations, the researchers identified a gene that significantly increases the risk of developing the disease, but interestingly in women only.

This study represents significant progress in the study of schizophrenia with possible practical implications in the areas of disease diagnosis and drug discovery. Nevertheless, it is important to stress that these possibilities will require many years of additional research, and even then, success cannot be guaranteed.

CITATION: Shifman S, Johannesson M, Bronstein M, Chen SX, Collier DA, et al. (2008) Genome-wide association identifies a common variant in the reelin gene that increases the risk of schizophrenia only in women. PLoS Genet 4(2): e28. doi:10.1371/journal.pgen.0040028 http://genetics.plosjournals.org/perlserv/?request=get-document&doi=10.1371/journal.pgen.0040028


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The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


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Public Library of Science. "Genetic Variant Increases Risk Of Developing Schizophrenia In Women." ScienceDaily. ScienceDaily, 19 February 2008. <www.sciencedaily.com/releases/2008/02/080215103330.htm>.
Public Library of Science. (2008, February 19). Genetic Variant Increases Risk Of Developing Schizophrenia In Women. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2008/02/080215103330.htm
Public Library of Science. "Genetic Variant Increases Risk Of Developing Schizophrenia In Women." ScienceDaily. www.sciencedaily.com/releases/2008/02/080215103330.htm (accessed November 26, 2014).

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