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Down syndrome

Down Syndrome
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Down Syndrome

The most common genetic disorder, Down syndrome affects about 1 in every 800 births. Instead of having 23 pairs of chromosomes, Down individuals have an extra copy of chromosome 21 — a trisomy. They also have distinctive features and developmental delays.

Watch the video to see how stem cell research suggests that trisomy 21 affects genes on other chromosomes.

Virginia Commonwealth University
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Dear Future Mom

Dear Future Mom

In response to an expectant mom’s concern about her baby with Down syndrome's future, this video presents 15 kids who explain what it’s like to live with the condition. The takeaway: Don't worry! More...

Video
CoorDown
Down Syndrome

Down Syndrome

Individuals with Down syndrome may have a number of associated health problems. Early intervention, surgery, and therapy can lessen their impact. Get the full story. More...

Article
KidsHealth
Drugs Could Reverse Down Syndrome Symptoms

Drugs Could Reverse Down Syndrome Symptoms

Mice altered to have a version of Down syndrome showed temporary cognitive improvement when injected with a brain-targeting drug. Could this therapy one day help humans? More...

Article
Discovery
Mosaicism

Mosaicism

Mosaic Down syndrome is a rare form of the disorder in which not all the of the person’s cells have the extra chromosome 21. Discover how this happens during mitosis, or cell division. More...

Article
Children's Hospital of Wisconsin
Myths and Truths About Down Syndrome

Myths and Truths About Down Syndrome

From stereotypes to complete inaccuracies, there is a lot of misinformation out there about Down syndrome. Find out the facts about this genetic disorder. More...

Article
NADS
New Genetic Therapy Could Erase Down Syndrome

New Genetic Therapy Could Erase Down Syndrome

Chromosome therapy, essentially gene therapy on steroids, may “cure” Down syndrome. There may be a way to turn off, or silence, the entire extra chromosome. More...

Article
WBUR
Silencing the Extra Chromosome Responsible for Down Syndrome

Silencing the Extra Chromosome Responsible for Down Syndrome

Watch as University of Massachusetts researcher Dr. Jeanne Lawrence describes her team’s quest to shut down the extra chromosome in Down syndrome. More...

Profile
University of Massachusetts
What Causes Down Syndrome

What Causes Down Syndrome

Most cases of Down syndrome occur when the egg cell has 24 chromosomes, instead of 23. See what happens when the egg and sperm, with its 23 chromosomes, combine. More...

Interactive
University of Utah
What’s It Like to Have Down Syndrome?

What’s It Like to Have Down Syndrome?

Melissa Riggio wrote this article to tell how it is to live with Down syndrome. With all her activities, it’s amazing she could find the time! More...

Article
National Geographic

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