| ADR Ontology |
| ADR Term |
Trisomy 21 |
| ADR ID |
BADD_A04395 |
| ADR Hierarchy |
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| Description |
A chromosome disorder associated either with an extra chromosome 21 or an effective trisomy for chromosome 21. Clinical manifestations include hypotonia, short stature, brachycephaly, upslanting palpebral fissures, epicanthus, Brushfield spots on the iris, protruding tongue, small ears, short, broad hands, fifth finger clinodactyly, Simian crease, and moderate to severe INTELLECTUAL DISABILITY. Cardiac and gastrointestinal malformations, a marked increase in the incidence of LEUKEMIA, and the early onset of ALZHEIMER DISEASE are also associated with this condition. Pathologic features include the development of NEUROFIBRILLARY TANGLES in neurons and the deposition of AMYLOID BETA-PROTEIN, similar to the pathology of ALZHEIMER DISEASE. (Menkes, Textbook of Child Neurology, 5th ed, p213) [MeSH] |
| MedDRA Code |
10044688 |
| MeSH ID |
D004314; D004314; D004314
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ADR Severity Grade (FAERS)
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ADR Severity Grade (CTCAE)
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Not Available
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| Synonym |
| Down's syndrome | Mongolism | Syndrome Down's | Trisomy 21 | Down Syndrome | Syndrome, Down | 47,XY,+21 | Trisomy G | 47,XX,+21 | Down's Syndrome | Downs Syndrome | Syndrome, Down's | Trisomy 21, Mitotic Nondisjunction | Down Syndrome, Partial Trisomy 21 | Partial Trisomy 21 Down Syndrome | Trisomy 21, Meiotic Nondisjunction |
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| ADR Related Proteins |
| Protein Name |
UniProt AC |
TTD Target ID |
| Not Available | Not Available | Not Available |
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| Drugs Leading to the ADR |
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