Last month, San Diego-based biotech company Sequenom released its long-awaited early pregnancy test for Down syndrome. Unlike previous methods such as amniocentesis, which carries a significant risk ...

Decades ago, researchers showed that Down syndrome (also known as trisomy 21), was caused when individuals carried an extra copy of chromosome 21. Down syndrome is also the most common genetic cause ...

People with Down's syndrome face a higher risk of developing Leukemia. Now researchers from the University of Copenhagen and Stanford University explain why, by identifying specific changes in blood ...

Human karyotype of Down syndrome. Autosomal abnormalities. Trisomy 21. [Rujirat Boonyong/Getty Images] Faulty brain circuits seen in Down syndrome may be caused by the lack of a particular molecule ...