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Results 1 - 10 of 33 for Trisomy 21
  1. Down syndrome 
    ... older. Most cases of Down syndrome result from trisomy 21, which means each cell in the body has ... not inherited. When the condition is caused by trisomy 21, the chromosomal abnormality occurs as a random event ...
    https://medlineplus.gov/genetics/condition/down-syndrome - Genetics
  2. Chromosome 21 
    ... infancy. This condition is most often caused by trisomy 21. Trisomy 21 means that each cell in the body has ... G, Engidawork E. The brain in Down syndrome (TRISOMY 21). J Neurol. 2002 Oct;249(10):1347-56. ...
    https://medlineplus.gov/genetics/chromosome/21 - Genetics
  3. GATA1 gene 
    ... each of their cells, a condition known as trisomy 21 or Down syndrome.Approximately 10 percent of people with Down syndrome develop TAM, usually at birth or soon after. ...
    https://medlineplus.gov/genetics/gene/gata1 - Genetics
  4. Can changes in the number of chromosomes affect health and development?: MedlinePlus Genetics 
    ... normal two copies. Down syndrome (also known as trisomy 21) is an example of a condition caused by trisomy . People with Down syndrome typically have three copies of chromosome 21 in ...
    https://medlineplus.gov/.../chromosomalconditions - Genetics
  5. What is noninvasive prenatal testing (NIPT) and what disorders can it screen for?: MedlinePlus Genetics 
    ... a chromosome. NIPT primarily looks for Down syndrome (trisomy 21, caused by an extra chromosome 21 ), trisomy 18 (caused by an extra chromosome 18 ), trisomy ...
    https://medlineplus.gov/genetics/understanding/testing/nipt - Genetics
  6. Dandy-Walker malformation 
    ... can also occur in people with trisomy 13, trisomy 21, or trisomy 9. This condition can also be associated with ...
    https://medlineplus.gov/genetics/condition/dandy-walker-malformation - Genetics
  7. Trisomy 18 
    ... Screening (BUN) Study Group. First-trimester screening for trisomies 21 and 18. N Engl J Med. 2003 Oct 9;349(15):1405-13. doi: 10.1056/NEJMoa025273. Citation on PubMed ... of fetal trisomy 18 through abnormal sonographic features. J Ultrasound Med. ...
    https://medlineplus.gov/genetics/condition/trisomy-18 - Genetics
  8. Alzheimer's disease 
    ... been identified.Some evidence indicates that people with Down syndrome have an increased risk of developing Alzheimer's disease. Down syndrome, a condition characterized by intellectual disability and other ...
    https://medlineplus.gov/genetics/condition/alzheimers-disease - Genetics
  9. MTRR gene 
    ... increase the risk of having a child with Down syndrome, a condition characterized by intellectual disability and associated ... and the risk of neural tube defects or Down syndrome. Many factors play a part in determining the ...
    https://medlineplus.gov/genetics/gene/mtrr - Genetics
  10. MTR gene 
    ... increases the risk of having a child with Down syndrome, which is a condition characterized by intellectual disability ... and the risk of neural tube defects or Down syndrome. Many factors play a part in determining the ...
    https://medlineplus.gov/genetics/gene/mtr - Genetics
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