The importance of understanding individual differences in Down syndrome
- PMID: 27019699
- PMCID: PMC4806704
- DOI: 10.12688/f1000research.7506.1
The importance of understanding individual differences in Down syndrome
Abstract
In this article, we first present a summary of the general assumptions about Down syndrome (DS) still to be found in the literature. We go on to show how new research has modified these assumptions, pointing to a wide range of individual differences at every level of description. We argue that, in the context of significant increases in DS life expectancy, a focus on individual differences in trisomy 21 at all levels-genetic, cellular, neural, cognitive, behavioral, and environmental-constitutes one of the best approaches for understanding genotype/phenotype relations in DS and for exploring risk and protective factors for Alzheimer's disease in this high-risk population.
Keywords: Alzheimer’s disease; Down syndrome; neurodevelopmental disorder; trisomy 21.
Conflict of interest statement
 
No competing interests were disclosed.
References
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    - Morris JK, Alberman E, Mutton D, et al. : Cytogenetic and epidemiological findings in Down syndrome: England and Wales 1989–2009. Am J Med Genet A. 2012;158A(5):1151–1157. - PubMed
 
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