Naslov
Development and application of PCR-STR method for rapid prenatal diagnosis of chromosomes 21 and 18 aneuploidies

Autori
Crkvenac-Gornik Kristina ; Grubić Zorana ; Štingl Katarina ; Tonković-Đurišević Ivana ; Letica Ljiljana ; Mužinić Dubravka ; Brkljačić-Kerhin Vesna ; Begović Davor

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
European Human Genetics Conference

Mjesto i datum
Amsterdam, Nizozemska, 06.09.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aneuplodies; PCR; prenatal diagnosis; STR; Croatians

Sažetak
In this study we reported the results for the first time of applying Polymerase Chain Reaction-Short Tandem Repeats (PCR-STR) method in the field of detection of aneuploidies for chromosomes 21 and 18 in Croatians. The aims of the study were: (I) validation of the diagnostic informativeness of 6 STR loci (D18S51, D18S858, D18S535, D21S1435, D21S1411, and D21S1414) in sample of 205 unrelated healthy individuals ; (II) evaluation of diagnostic power of the PCR-STR method for those 6 microsatellites ; (III) establishment protocol for use STRs as routine method for rapid prenatal detection of trisomy 21 and 18. DNA samples were amplified by fluorescence-based PCR reaction, subjected to electrophoresis in a automated laser fluorescence DNA sequencer (ALFexpress). Results of our study were: (I) all 6 tested loci are informative (68% - 85% of heterozygous individuals) ; (II) comparison between PCR-STR method and conventional cytogenetics did not revealed any false positive or false negative results ; (III) in prenatal screening of 105 samples of uncultured amniotic fluid 6 (5.7%) samples with chromosomal abnormalities were identified.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne medicinske znanosti

POVEZANOST RADA