- Down syndrome (disease)
- (doun) [John Langdon Haydon Down, English physician, 1828–1896] see under syndrome.
Medical dictionary. 2011.
Down syndrome (disease)
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Down syndrome — Classification and external resources Boy with Down syndrome assembling a … Wikipedia
Down syndrome — A common chromosome disorder due to an extra chromosome number 21 (trisomy 21). Down syndrome causes mental retardation, a characteristic face, and multiple malformations. Down syndrome is a relatively common birth defect. The chromosome… … Medical dictionary
Down syndrome — Pathol. a genetic disorder, associated with the presence of an extra chromosome 21, characterized by mild to severe mental retardation, weak muscle tone, a low nasal bridge, and epicanthic folds at the eyelids. Also, Down s syndrome. Formerly,… … Universalium
Down syndrome features — Children with Down syndrome have multiple malformations and mental impairment due to the presence of extra material from chromosome 21. Among the more common physical features are hypotonia (floppiness), small head with brachycephaly, epicanthic… … Medical dictionary
Health aspects of Down syndrome — Down syndrome is a genetic disease resulting from the presence of all or part of an extra 21st chromosome (trisomy 21). The medical consequences of this extra genetic material are highly variable and may affect the function of any organ system or … Wikipedia
Down syndrome — Congenital condition, formerly called mongolism; named after the British physician J. L. H. Down (1828–1896). Sometimes still called Down’s syndrome, but increasingly the convention in medical circles is to abandon the possessive in the names of … Bryson’s dictionary for writers and editors
Research of Down syndrome-related genes — is based on studying the genes located on chromosome 21. In general, this leads to an overexpression of the genes. [cite journal |author=Mao R, Zielke CL, Zielke HR, Pevsner J |title=Global up regulation of chromosome 21 gene expression in the… … Wikipedia
Down or Down's, Syndrome — Down s syndrome, or Down syndrome, is a disorder caused by chromosome abnormalities that develop during germ cell formation. If the affected ovum or sperm takes part in fertilization, the fetus will exhibit the syndrome. Characteristics… … Dictionary of eponyms
Syndrome, Down — A common chromosome disorder due to an extra chromosome number 21 (trisomy 21). Down syndrome causes mental retardation, a characteristic face, and multiple malformations. Down syndrome is a relatively common birth defect. The chromosome… … Medical dictionary
Syndrome, trisomy 21 — A common chromosome disorder, often called Down syndrome, due to an extra chromosome number 21 (trisomy 21). The chromosome abnormality affects both the physical and intellectual development of the individual. Trisome 21 (Down) syndrome is… … Medical dictionary
