Medically reviewed by Nicholas R. Metrus, MD Key Takeaways Mosaic Down syndrome has some cells with three copies of chromosome 21, and some with two instead of all three.Only about 1% to 2% of people ...

Emma McLean is a 6-year-old girl who loves Taylor Swift, reading books, playing the drums and hanging with her little sister. While Emma has Down syndrome — specifically a rare type called Mosaic Down ...

Down syndrome is a genetic disorder caused by an extra copy of chromosome 21. Along with causing intellectual disability and physical health issues, this condition may make a person more prone to ...

A baby was born with a syndrome so rare it doesn’t have a name – after doctors spotted his “beautiful” wide eyes. Oska-Gray ...

With the addition of a doll with Down syndrome characteristics, the Barbie collection is increasing representation in the toy aisle. This week, Mattel, Inc. announced a new addition to the world of ...

Fetal alcohol syndrome (FAS) and Down syndrome are both conditions that are present at birth. While they both affect facial appearance, development, and physical health, they have different causes.

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EL SEGUNDO, Calif. – Toy manufacturer Mattel introduced the first-ever Barbie doll representing a person with Down syndrome in an effort to “counter social stigma through play,” the company announced ...

A missing brain molecule may be disrupting neural wiring in Down syndrome, according to new research. Replacing it in adult mice rewired brain circuits and improved brain flexibility, challenging the ...

The "Barbie" movie premiere looks continue to amaze — from Dua Lipa's sheer ensemble to Margot Robbie's Schiaparelli sequin gown. But one star in particular really caught our attention: Sofia Sanchez.

WASHINGTON — Toy company Mattel revealed its first Barbie doll representing a person with Down syndrome on Tuesday. Mattel collaborated with the National Down Syndrome Society to create the Barbie and ...