D 2005

Our first experience in preimplantation genetic diagnosis.

VALÁŠKOVÁ, Iveta, Jitka KADLECOVÁ, Petr KUGLÍK, Iva SLÁMOVÁ, Renata GAILLYOVÁ et. al.

Basic information

Original name

Our first experience in preimplantation genetic diagnosis.

Name in Czech

Naše první zkušenosti s preimplantační genetickou diagnostikou

Authors

VALÁŠKOVÁ, Iveta (203 Czech Republic), Jitka KADLECOVÁ (203 Czech Republic), Petr KUGLÍK (203 Czech Republic, guarantor), Iva SLÁMOVÁ (203 Czech Republic) and Renata GAILLYOVÁ (203 Czech Republic)

Edition

Praha, European Journal of Human Genetics, p. 268-268, 2005

Publisher

Nature Publishing Group

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

Biotechnology and bionics

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/05:00014636

Organization unit

Faculty of Science

ISBN

1018-4813

Keywords in English

PGD; chromosomal aberrations; FISH; PCR; cystic fibrosis
Změněno: 18/1/2007 13:57, doc. RNDr. Petr Kuglík, CSc.

Abstract

V originále

Prevention of the birth of affected children in couples at risk for transmitting a genetic disorder is currently based on population screening and prenatal diagnosis, followed by termination of affected pregnancies. However, this is the most sensitive problem in the control of genetic disease, which is incompatible with life or not tolerated in populations and ethnic groups. Preimplantation genetic diagnosis (PGD) is a principally new approach for the prevention of genetic disorders, which allows the selection of unaffected IVF embryos for establishing pregnancies in couples at risk. PGD may be achieved by testing female gametes (polar body analysis), blastomeres from cleavage stage embryos, or blastocysts. PGD can be applied for monogenic disorders or chromosomal abnormalities, using diagnostic protocols based on the polymerase chain reaction (PCR) or fluorescence in situ hybridisation (FISH), respectively. Our genetic centre at present concentrates on chromosomal abnormalities, while also on genotyping for single-gene disorders. Genetic analyses are performed on biopsied blastomeres . PGD of chromosomal abnormalities is applied in patients with repeated IVF failures or spontaneous abortions. This application is essentially a screening procedure to detect aneuploidies/polyploidies or translocations most commonly observed postnatally or in spontaneus abortions. We optimise the first PCR based PGD protocol for genotyping of Cystic Fibrosis Transmembrane Regulator (CFTR) gene with focusing on several inherent difficulties associated with single cell DNA amplifications including potential sample contamination, total PCR failure and allelic drop out. These difficulties should be minimised for any PGD PCR protocol before clinical application.

In Czech

Práce se zabývá prvními zkušenostmi pracoviště OLG FN Brno a Laboratoře molekulární cytogenetiky PřF MU s preimplantační genetickou diagnostikou při vyšetřování početních i strukturních chromozomových abnormalit a některých monogenních onemocnění (cystická fibróza).

Links

MSM0021622415, plan (intention)
Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations