Abstract:
:We report on the observation of an interstitial deletion of the long arm of chromosome 1 diagnosed prenatally in a 28 weeks gestation fetus by standard karyotype. Amniocentesis was performed because of an increased Down syndrome maternal serum screening and ultrasonographic abnormalities. Fetus autopsy showed an intrauterine growth retardation, dysmorphic features and limbs abnormalities. Using fluorescent in situ hybridization technique (FISH), we characterized the deletion boundaries corresponding to the bacterial artificial chromosomes (BAC) RP11-193J5 and RP11-162L13. Molecular studies identified the deletion of paternal origin. Therefore the karyotype was interpreted as 46,XY,del(1)(q24.2q25.2). This is the smallest deletion of the long arm of chromosome 1 reported prenatally and characterized at the molecular level. Its phenotype is compared to other similar cases described in the literature.
journal_name
Eur J Med Genetjournal_title
European journal of medical geneticsauthors
Chaabouni M,Martinovic J,Sanlaville D,Attié-Bittach T,Caillat S,Turleau C,Vekemans M,Morichon Ndoi
10.1016/j.ejmg.2006.03.004subject
Has Abstractpub_date
2006-11-01 00:00:00pages
487-93issue
6eissn
1769-7212issn
1878-0849pii
S1769-7212(06)00045-0journal_volume
49pub_type
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