Uniparental disomy - UPD

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Eurofins Biomnis code

DUP

Specialty

Genetics


Clinical significance

Uniparental disomy (UPD) is the presence of a diploid subject of two chromosomes (subjected to fingerprinting) inherited from the same parent. The correlary of this phenomenon is the appearance of diseases such as Prader-Willi syndrome or Angelman syndrome for the region located on the long arms of chromosome 15(15q11-13).

Preanalytics
  • A tube specifically for this analysis : No
Further information

According to regulation, each request must ALWAYS be accompanied by a consent form signed by the patient and the prescribing pathologist
5 ml of whole blood on EDTA from each parent (quotation on request) is required to perform this test
Enclose the specific B12-INTGB request form: Molecular Genetics


Methodology

Microsatellites (14, 15, 7, 11, 16, 20). Fluorescent sequence analysis (PCR)

Turnaround time

1 week


Testing Laboratory