Fluorescence in situ hybridization (FISH) using biotin labeled X-and Y-chromosome DNA probes was utilized in the analysis of 23 sex chromosome-derived markers. Specimens were obtained through prenatal diagnosis, because of a presumptive diagnosis of Ullrich-Turner syndrome, mental retardation, and m
The value of fluorescence markers in the distinction between maternal and fetal chromosomes
โ Scribed by M. Hauge; Hanne Poulsen; Annie Halberg; Margareta Mikkelsen
- Publisher
- Springer
- Year
- 1975
- Tongue
- English
- Weight
- 259 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0340-6717
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โฆ Synopsis
Selected fluorescence markers of chromosomes were studied in 50 paired samples of cells obtained by culture of amniocentesis material and by culture of leukocytes from pregnant women. Comparative analyses showed that this method is of great value in disclosing admixture of maternal cells to material obtained by amniocentesis, as a minimum of 2 fluorescence marker differences between mother and fetus was found in the present material. The distribution of markers in mother/fetus pairs is in agreement with the assumption of genetic determination. Variation was observed between populations with respect to the frequency of the markers studied.
๐ SIMILAR VOLUMES
We have studied maternal serum free beta-hCG and PAPP-A, and fetal nuchal translucency (NT) in a series of 46 cases of fetal Turner's syndrome, 13 cases of other sex chromosomal anomalies and compared these with 947 control pregnancies in the first trimester. In cases of Turner's syndrome (45,X) the