Abstract
Suggestive evidence for a potential susceptibility locus for schizophrenia at 5q31 was obtained in two family samples. Sample I consisted of 14 families with schizophrenia and revealed for the marker IL9 a lod score of 1.8 by two point lod score analysis. Sample II comprised 44 families including four from sample I and was ascertained in order to employ affected sib-pair analysis by identity by descent. A lod score of 1.8 around the marker D5S399 was obtained by multipoint analysis. The lod score remained positive, but decreased to 1.27 when the four families from sample I were excluded in order to use sample II as a statistically independent replication sample. We propose a susceptibility locus for schizophrenia with probably minor contribution in the pedigrees under investigation.
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Schwab, S., Eckstein, G., Hallmayer, J. et al. Evidence suggestive of a locus on chromosome 5q31 contributing to susceptibility for schizophrenia in German and Israeli families by multipoint affected sib-pair linkage analysis. Mol Psychiatry 2, 156–160 (1997). https://doi.org/10.1038/sj.mp.4000263
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DOI: https://doi.org/10.1038/sj.mp.4000263
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