DNA QUANTIFICATION AND TRIPLOIDY PHENOTYPE DURING 2ND AND 3RD TRIMESTERS OF GESTATION
ANNALES DE PATHOLOGIE(1994)
摘要
Triploidy is often associated with early abortions, but may evolve during the second trimester taking a peculiar phenotype. The conditions of diagnosis or abortion do not always let the possibility of karyotyping. Thus, DNA quantification takes all its value. Twenty-three fetuses and placentas, ranging from 14 to 30 weeks of gestation with a phenotype of triploid by were analysed. Twelve cases were proved by karyotype. The DNA index studied in 6 of these was near 1.5, which confirmed the validity of the technique. Out of 11 phenotypes without karyotyping, DNA analysis identified 4 triploidies and a possible tetraploidy. So, a series of 16 cases could be collected, including 10 partial hydatiform moles and 6 hypotrophic or normal fetuses and placentas.
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