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 ...

A significant Danish study revealed that individuals with Down syndrome face substantially higher risks of acute and chronic ...

Scientists in Japan have used gene-editing technology to remove the extra chromosome responsible for Down syndrome, at least in lab-grown human cells. The project, led by Dr. Ryotaro Hashizume of Mie ...

Beverly A. Rothermel is in the Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. Read the paper: Myocardial reprogramming by HMGN1 underlies ...

Environmental factors such as lifestyle and the medications you take influence the effects your genes have on your body — and can clarify how diseases develop. When you purchase through links on our ...

She had to fight for recognition after a male colleague took credit for her work in identifying an extra chromosome as the cause of that genetic condition. Dr. Marthe Gautier in an undated photo.