By: Kelsi Record
How does Down Syndrome occur?
Typically, the nucleus of each cell contains 23 pairs of chromosomes, half of which are inherited from each parent. Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21.One in every 691 babies in the the United States is born with Down syndrome
How was Down Syndrome discovered?
In 1959, the French physician Jérôme Lejeune identified Down syndrome as a chromosomal condition. Instead of the usual 46 chromosomes present in each cell, Lejeune observed 47 in the cells of individuals with Down syndrome.
What is the likely hood of having a child with Down syndrome?
Down syndrome occurs in people of all races and economic levels, though older women have an increased chance of having a child with Down syndrome.
How is Down Syndrome diagnosed?
There are two categories of tests for Down syndrome that can be performed before a baby is born: screening tests and diagnostic tests.
Symptoms of Down Syndrome
Individuals with Down syndrome possess varying degrees of cognitive delays, from very mild to severe. Most people with Down syndrome have cognitive delays that are mild to moderate.
Due to advances in medical technology, individuals with Down syndrome are living longer than ever before. In 1910, children with Down syndrome were expected to survive to age nine. With the discovery of antibiotics, the average survival age increased to 19 or 20. Now, with recent advancements in clinical treatment, most particularly corrective heart surgeries, as many as 80% of adults with Down syndrome reach age 60, and many live even longer.
Unfortunately, Down Syndrome has no treatments or cures.