Down_Syndrome

Down Syndrome DOWN SYNDROME Down Syndrome is a very serious disease. Down Syndrome is a genetic disease that is caused by an extra chromosome 21. Down Syndrome was first discovered by a physician named John Langdon Down in 1866. He was a superintendent of an asylum for children with mental retardation in Surrey, England. He noticed that the children with Down Syndrome looked the same. He later published an essay on the subject. John Langdon Down referred to the children with Down Syndrome “Mongoloids.” Down said they looked like natives from Mongolia. That unfortunate name was later changed to Down Syndrome. Children or adults with Down Sydrome have a widely recognized characteristic appearance. The head may be smaller or abnormally shaped. There may be a flattened nose, potruding tongue, and upward slanting eyes. There may be serious heart defects present in people with Down Syndrome. A heart murmur may be included in the heart conditions if one would have Down Syndrome. Down Syndrom cannot be prevented since it is a genetic disorder. Down Syndrome can be deected in a fetus in the first few months of pregnancy by examination of the chromosomes obtained by sampling. Mothers who become pregnant after 40 are also at increased risk for having a child with Down down, syndrome, genes, heart, children, syndrom, retardation, people, overexpressed, chromosomes, trying, sydrome, scientists, same, production, overexpression, offspring, mental, mate, make, looked, later, langdon, john, increased, having, first, find, extra, different, defects, conditions, child, chance, 21, yet, wrong