Down Syndrome


Reports from R. Lowenthal et al highlight recent research in Down syndrome



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This article was published in Genetics & Environmental Health Week, which you can subscribe to online.
2007 NOV 21 -- According to a study from Sao Paulo, Brazil, "The frequencies of pervasive developmental disorder (PDD) in Down's syndrome (DS) have been reported from 1% to 11%."

"However, it is not clear if the frequency of this co-occurrence is higher or lower than in other mental retardations. We study a large sample of DS population, finding a PDD frequency of 15.6%, with 5.58% of autism (eight males and two females) and 10.05% of PDD non autism (nine males and nine females," wrote R. Lowenthal and colleagues.

The researchers concluded: "The meaning of this frequency is discussed."

Lowenthal and colleagues published their study in the Journal of Autism and Developmental Disorders (Prevalence of pervasive developmental disorder in Down's syndrome. Journal of Autism and Developmental Disorders, 2007;37(7):1394-1395).

For more information, contact M.T. Mercadante, University of Prebiteriana Mackenzie, Rua Consolacao 896, Sala 62, BR-01302907 Sao Paulo, Brazil.

Publisher contact information for the Journal of Autism and Developmental Disorders is: Springer, Plenum Publishers, 233 Spring St., New York, NY 10013, USA.

Keywords: Brazil, Sao Paulo, Developmental Disabilities, Down Syndrome, Genetics.

This article was prepared by Genetics & Environmental Health Week editors from staff and other reports. Copyright 2007, Genetics & Environmental Health Week via NewsRx.com.