Down Syndrome
Published on Nov 19, 2015
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PRESENTATION OUTLINE
DOWN SYNDROME
THE MOST COMMON CHROMOSOME DISORDER AND GENETIC CAUSE OF RETARDATION.
Photo by ~Rich Johnson~
CAUSE:
It occurs because of the presence of an extra copy of chromosome 21, and a person would have it at birth.
Photo by Image Editor
SYMPTOMS
- Flat nose bridge
- Extra folds around upward slanted eyes
- Quiet and less responsive
- Weak, floppy muscles
- Shorter than normal.
- Small head and mouth
- Overly flexible
- 30-50% have heart defects
- 5-7% have a malformed gastrointestinal track
Photo by ~Rich Johnson~
DIAGNOSIS
- Suspected at birth
- Genetic testing is done to verify (usually done with a blood sample)
- Pregnant women over 35 are offered prenatal tests, 75% miscarry with this
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There is no treatment available to cure Down Syndrome.
Photo by Saucy Salad
PROGNOSIS
- W/out heart defects 90% of patients live into their teens.
- Seems to age more quickly
- Average age of death is about 50-55 years.
- 60% of women with Down syndrome are capable to have kids (their babies have a 50% rate of getting Down syndrome, as well).
Photo by Andreas-photography
OTHER INFORMATION.
- Occurs in 1 out of 800 births.
- Equal amount of males and females.
- Higher chance for older women to have a child with Down syndrome, than younger women.
Photo by Andrew Czap
SOURCE CITATIONS.
- Johnson, Paul A. "Down syndrome." The Gale Encyclopedia of Genetic Disorders. Ed. Stacey L. Blachford. Vol. 1. Detroit: Gale, 2002. 348-353. Gale Virtual Reference Library. Web. 28 May 2015.
- "Down Syndrome." Human Diseases and Conditions. Ed. Miranda Herbert Ferrara. 2nd ed. Vol. 2. Detroit: Charles Scribner's Sons, 2010. 557-561. Gale Virtual Reference Library. Web. 28 May 2015.
