Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1996-4-19
pubmed:abstractText
Familial Dysautonomia (FD) is an autosomal recessive sensory neuropathy that affects about 1 in 3,700 individuals of Ashkenazi Jewish ancestry. The underlying biochemical and genetic defects are unknown, thereby precluding prenatal diagnosis in at-risk families. Recently, the FD gene (DYS) was mapped with strong linkage disequilibrium to polymorphic markers in the chromosome 9 region q31-q33. In this report, the use of these markers for the prenatal diagnosis of FD by linkage analysis in families with a previously affected child was evaluated. Genomic DNA from appropriate family members was analyzed to construct haplotypes using informative CA repeat polymorphisms closely linked to and flanking the FD locus. The calculation of risk for the prenatal diagnoses was performed by linkage analysis. All seven FD families were informative for the closely linked polymorphic markers and fetal diagnoses were made in eight pregnancies. Six fetal diagnoses were predicted with > 98% accuracy, while two with recombinations were predicted with at least 88% and 92% accuracy. Use of these closely linked markers permitted the reliable prenatal diagnosis of FD in families with a previously affected child.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0148-7299
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
349-55
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:8599360-Abortion, Eugenic, pubmed-meshheading:8599360-Abortion, Induced, pubmed-meshheading:8599360-Adult, pubmed-meshheading:8599360-Amniocentesis, pubmed-meshheading:8599360-Chorionic Villi Sampling, pubmed-meshheading:8599360-Chromosomes, Human, Pair 9, pubmed-meshheading:8599360-Dinucleotide Repeats, pubmed-meshheading:8599360-Diseases in Twins, pubmed-meshheading:8599360-Dysautonomia, Familial, pubmed-meshheading:8599360-Female, pubmed-meshheading:8599360-Fetal Diseases, pubmed-meshheading:8599360-Genes, Recessive, pubmed-meshheading:8599360-Genetic Linkage, pubmed-meshheading:8599360-Genetic Markers, pubmed-meshheading:8599360-Humans, pubmed-meshheading:8599360-Jews, pubmed-meshheading:8599360-Male, pubmed-meshheading:8599360-Pedigree, pubmed-meshheading:8599360-Pregnancy
pubmed:year
1995
pubmed:articleTitle
Prenatal diagnosis of familial dysautonomia by analysis of linked CA-repeat polymorphisms on chromosome 9q31-q33.
pubmed:affiliation
Department of Human Genetics, Mount Sinai School of Medicine, New York, New York 10029, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Case Reports, Research Support, Non-U.S. Gov't