Asperger's Syndrome Research Today is a free monthly online journal that collates and summarizes the latest research about Asperger's Syndrome, including details on symptoms, diagnosis, treatment, medication.

Independent replication and initial fine mapping of 3p21-24 in Asperger syndrome.

Rehnström K, Ylisaukko-oja T, Nieminen-von Wendt T, Sarenius S, Källman T, Kempas E, von Wendt L, Peltonen L, Järvelä I

BACKGROUND: Asperger syndrome is characterised by abnormalities in social interaction as well as repetitive and stereotyped behaviours and interests. The trait is thought to display complex inheritance, but in a subset of families the inheritance resembles the autosomal dominant model. Linkage to 3p14-24 has recently been reported in Asperger syndrome in Finnish families with a maximum multipoint NPL(all) of 3.32 at D3S2432. METHODS: We have replicated linkage findings to 3p21-24 in 12 new extended Asperger syndrome families. Linkage analyses were performed separately for the 12 new families, and linkage and association analyses were also performed jointly with data from the original genome-wide screen. RESULTS: Best two point and multipoint logarithm of the odds (LOD) scores in analyses of both data sets were obtained at D3S2432 (NPL(all) = 3.83) with both subsets of families contributing to linkage. Association analysis of the combined data set produced a trend towards association with D3S2432 and D3S1619. CONCLUSIONS: This study further validates 3q21-24 as a candidate region for Asperger syndrome.

Published 9 February 2006 in J Med Genet, 43(2): e6.
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