Down+Syndrome

There are 3 types of Down syndrome.
 * About Down Syndrome

Trisomy 21: When there are 3 chromosome 21’s in every cell of the body. Accounts for 95% of Down Syndrome Cases

Translocation: When part of chromosome 21 breaks off and attaches to another chromosome, normally chromosome 14. Accounts for 4% of Down Syndrome.

Mosaicism: When nondisjunction of chromosome 21 occurs in one of cell divisions after fertilization. Accounts for 1% of Down Syndrome. ||  || Jérôme Lejeune
 * # In 1866, John Langdon Down discovered Down Syndrome in Britain. He described it as a disorder called “Mongolism”. John Langdon Down didn’t understand how Down Syndrome occurred and the cause wasn’t discovered until 1959 by Jérôme Lejeune (a french ). physician  || [[image:https://lh3.googleusercontent.com/pS0q7uwwX7EtfocZlZtvZInGezOKfwXqNwz1zdZgL3X3x8HlKczqMXhAdCPfatPoNLKDpd1EijuCf5GJaNb8K3M37Uy5WEydhz9Pk7UNhws2GOJruwAXeKxB2IOyUS1OWPwJLXrw width="246" height="179"]]

 John Langdon Down ||
 * 2. Some of the symptoms associated with this disorder are delayed development, learning disability, short stature, or speech delay in a child, lazy eye or spots, difficulty thinking and understanding, brachycephaly, upslanting palpebral fissures, atlantoaxial instability, bent little finger, congenital heart disease, displacement of the tongue, and more. Often the symptoms start at age 50.

Some of the treatments for the many symptoms are physical activity for cardiovascular health and special education for learning disability. There are also many therapies such as speech therapy, support groups, occupational therapy, genetic counseling and physical therapy. There is only so much these treatments can do because there is no cure for down syndrome.

In the past, children with this disorder would not live past childhood. Now with some of the treatments we have, people will grow into adulthood. The average life expectancy of someone with down syndrome is 60. ||  || syndrome. Overall both sexes have approximately the same amount of case with Down Syndrome. ||  || <span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[]
 * <span style="background-color: transparent; color: #674ea7; font-family: Arial; font-size: 11pt; vertical-align: baseline;">3. The inheritance pattern of Down Syndrome is autosomal. It can be inherited autosomal dominant or recessive. Almost all Down syndrome is a genetic condition. Only 1% of all Down Syndrome cases are hereditary. || <span style="background-color: transparent; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[[image:https://lh6.googleusercontent.com/FRT77-R_X7Bb8dxQZ6neCljf8qwo493fMox5_QDox2Bf4fboKBLGbG1K9BMX5oCtwATXYj5KYVzCiwDjxujEsEmq3jmwb713awf1ejUHnnNTcGAVv6LcFVsVdod7PlC6kUfaQRIG width="287" height="175"]] ||
 * <span style="background-color: transparent; color: #674ea7; font-family: Arial; font-size: 11pt; vertical-align: baseline;">4. There are no known environmental factors that either aggravate or alleviate the symptoms of Down syndrome. There is no way to prevent down syndrome. || <span style="background-color: transparent; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[[image:https://lh4.googleusercontent.com/VwcM-NmUgutlvjFgQjUP5QeXbYX6CU_wC5VAgORbhgcDQ-6SJATqR3eO8LTyBNksneYO117N5ts4S-no4xR3mz6rrtsLrE9nTGK1fSp2TLRDvc-yQ1IRHdvqAnz2rSm26J9omUYY width="324" height="207"]] ||
 * <span style="background-color: transparent; color: #674ea7; font-family: Arial; font-size: 11pt; vertical-align: baseline;">5. One in every 700 babies have down syndrome in the US. Trisomy 21 is the most common type of Down Syndrome to get. This genetic disorder is most common in the USA. African Americans with Down Syndrome are twice as likely to die than caucasians during adolescence. Younger couples are more likely to have a male with Down Syndrome while older couples are more likely to have a girl with Down
 * <span style="background-color: transparent; color: #674ea7; font-family: Arial; font-size: 11pt; vertical-align: baseline;">6. Some of the ways people are diagnosed with Down Syndrome are through Chorionic villus sampling and Amniocentesis. Chorionic villus sampling is when the doctor takes cells from the placenta to analyze the chromosomes of the fetus. Amniocentesis is when the doctor takes a sample of the amniotic fluid around the fetus with a needle. Both these tests are done when there are warning signs of a baby having Down Syndrome when it is born. After birth diagnostic techniques are mostly based off the physical appearance of the patient. || <span style="background-color: transparent; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[[image:https://lh4.googleusercontent.com/PozP3D0qUH-Lx947hvOu-21Fi4i8eDl51d2tk_nJDYR-sDBoIgg9OAaUa8GYqBinojCSfkhpX9Iy807oFP0I3wApfMfqicrw7DG7ld0JvB9pudCxf3oq7f3N1Az3BNzzHd5jfjxr width="387" height="205"]][[image:https://lh4.googleusercontent.com/1tmBUZKb1kcjoymDiFC4DbhTQ8MW8wN3Vj3FLj0jbsFw352Cdldr9MsJ3KpvAiwlPPRb0RoyknKbD67_BWwbT21PYjm8fd_rW4l_Du0a52C6f15bwzu0aBqLSUnR0zgEvvbTKE7W width="295" height="304"]] ||
 * 7. Chromosome 21 is responsible for Down Syndrome. The disorder occurs when there is a gene mutation known as nondisjunction. This is an error in cell division. The chromosomes in the sperm or egg before the baby is born fail to separate. The chromosome keeps replicating uncontrollably until there is an extra chromosome 21 in every cell of the developing body. || <span style="background-color: transparent; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[[image:https://lh3.googleusercontent.com/rdJXbe74POdZakaYT2D3K-D-foiJGRD8ESOn3CF6ByPPl0MPf1WloRsA9ZYZg6in6CASZFQ22I5VJqJAkjy_lZ5TIWA4Js0vMd4twJooJFQA6qRH2KTZj9HPSas8CRpXxSD0nV8D width="387" height="360"]] ||
 * <span style="background-color: transparent; font-family: Arial; font-size: 11pt; vertical-align: baseline;">Works Cited

<span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[]

<span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[]

<span style="background-color: transparent; color: #1155cc; font-family: Arial; font-size: 11pt; vertical-align: baseline;">[] ||  ||