Document Detail


The 'fragile' X chromosome in the Martin-Bell-Renpenning syndrome and in males with other forms of familial mental retardation.
MedLine Citation:
PMID:  7328617     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A clinical and cytogenetic study has been made of subjects from families who have possible X linked mental retardation. The families were distinguished as those with a clinical diagnosis of Renpenning syndrome and those with other behavioural or physical abnormalities obviating such a diagnosis. All subjects with REnpenning syndrome carried a fragile Xq27-28 chromosome in more than 4% of their blood lymphocytes. In addition, two other families who did not have Renpenning syndrome but had similar clinical features also carried the fragile site Xq27-28. A female age effect was observed and one possible carrier of Renpenning syndrome exhibited the fragile X in 10% of her lymphocytes but was also mentally retarded. Subjects within the same family did not always exhibit the fragile site on a comparable proportion of their cells.
Authors:
R Proops; T Webb
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of medical genetics     Volume:  18     ISSN:  0022-2593     ISO Abbreviation:  J. Med. Genet.     Publication Date:  1981 Oct 
Date Detail:
Created Date:  1982-04-12     Completed Date:  1982-04-12     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2985087R     Medline TA:  J Med Genet     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  366-73     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Chromosome Fragile Sites
Chromosome Fragility*
Female
Heterozygote Detection
Humans
Karyotyping
Linkage (Genetics)
Male
Mental Retardation / genetics*
Pedigree
Phenotype
Sex Chromosomes*
X Chromosome*
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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