A century after Down syndrome was first described, scientists discovered that the root cause of this disorder is a condition called trisomy 21. What strides in research have been made since then?

Down's syndrome, also known as trisomy 21, is one of the most common genetic diseases. Researchers have recently analyzed the proteins of individuals with trisomy 21 for the first time ...

I don't fault her for seeing what is written on my daughter's face—Penny has trisomy 21, better known as Down syndrome, the presence of a third copy of chromosome 21 in every cell of her body.

Sequenom Inc. The test is a milestone in prenatal testing because it’s the first noninvasive way to detect trisomy 21, the most common cause of Down syndrome. Until now, women have had to ...

This advanced blood test screens for chromosomal abnormalities like Down syndrome (Trisomy 21), Edwards syndrome (Trisomy 18), and Patau syndrome (Trisomy 13), as well as sex chromosome differences.

Down Syndrome is also known as Trisomy 21, a repetition of the 21st chromosome. Burger said he and wife Ashlyn are expected to announce a foundation for Trisomy 21 research and support in the near ...