PRENATAL-DIAGNOSIS OF ALPHA-1-ANTITRYPSIN DEFICIENCY USING POLYMERASE CHAIN-REACTION (PCR) - COMPARISON OF CONVENTIONAL RFLP METHODS WITH PCR USED IN COMBINATION WITH ALLELE SPECIFIC OLIGONUCLEOTIDES OR RFLP ANALYSIS

  • 1 December 1989
    • journal article
    • research article
    • Vol. 36  (6) , 419-426
Abstract
Prenatal diagnosis of alpha1-antitrypsin (AAT) deficiency can be performed in the 1st trimester of pregnancy. These diagnoses have been based on DNA technology using either RFLP analysis or hybridization with allele specific oligonucleotides. Several RFLPs within and flanking the AAT gene have been found to render most families informative. The polymerase chain reaction allows specific DNA sequences to be amplified up to ten million fold. Both sequences containing a specific mutation or an RFLP can be amplified by this method. We have compared conventional RFLP methods with PCR used in combination with allele specific oligonucleotides or RFLP analysis, in a case of prenatal diagnosis of AAT deficiency of the ZZ type.