Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UMLS:C0025362 (
mental retardation
)
15,878
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Five cases with different abnormalities of chromosome 18 are described: one case with trisomy 18, two cases with ring 18, one case with
partial trisomy 18q
and one case with a mosaic 18p-/iso 18q. The karyotypes of the parents were normal. Cytogenetic analysis was performed on PHA stimulated blood lymphocytes. GTG, QFQ, MTX banding techniques were used. Karyotype-phenotype correlations are made. All patients present
mental retardation
, hypotonia and facial dismorphisms. The different degree of
mental retardation
and the clinical signs are in relation to the different size of deletions or trisomies of the short or long arm of chromosome 18. In the case with mosaicism 18p-/iso18q the phenotype is determined from the chromosomal abnormality more frequent in the cells (18p-).
...
PMID:[Correlations between karyotype and phenotype in structural and numerical abnormalities of chromosome 18]. 146 1
