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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Possible linkage of schizophrenia and bipolar affective disorder to chromosome 3q29; a follow-up.

The present linkage study is a follow-up within the chromosome 3q29 region in schizophrenia and bipolar affective disorder families, based on our recently published genome scan, resulting in evidence for linkage of both disorders to this region (marker D3S1265: NPL [non parametric lod] score Z(all)=3.74, P=0.003). Using the same family sample (five pedigrees with schizophrenic index patients and three pedigrees with index bipolar disorder patients N=86; 50 of them were available for genotyping), genotyping of eight additional markers close to D3S1265 was done. Five of those new markers (three centromeric and two telomeric of D3S1265) spanning 4.14 cM (centiMorgan) could be used for statistical analyses ("new markers"). Moreover, marker D3S1265, genotyped within the published genome scan, was used for additional calculations. Linkage analysis was performed using the GENEHUNTER program version 2.1r3. Within newly genotyped markers the highest NPL score Z(all) observed was 1.93296 with the telomeric SNP (single nucleotide polymorphism) rs1835669, corresponding to P=0.032166. Statistical analysis including D3S1265, located in between the newly genotyped markers, resulted in a peak NPL score Z(all)=4.00179 with marker D3S1265, that is P=0.000128. Doing subset analyses of the bipolar disorder and schizophrenia families separately with new markers and D3S1265, linkage signals arose substantially from bipolar disorder families, with contribution from schizophrenia families, too. The results of our follow-up study support our previous linkage finding of schizophrenia and bipolar affective disorder to chromosome 3q29.[1]


  1. Possible linkage of schizophrenia and bipolar affective disorder to chromosome 3q29; a follow-up. Schosser, A., Fuchs, K., Leisch, F., Bailer, U., Meszaros, K., Lenzinger, E., Willinger, U., Strobl, R., Heiden, A., Gebhardt, C., Kasper, S., Sieghart, W., Hornik, K., Aschauer, H.N. Journal of psychiatric research. (2004) [Pubmed]
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