Titlebook: Genetic Disorders and the Fetus; Diagnosis, Preventio Aubrey Milunsky (Professor of Pediatrics, Obstetri Book 1986Latest edition Aubrey Mil

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The Prenatal Diagnosis of the Fragile X Syndrome, X-linked pedigrees and Davison (1973) suggested that the cause of nonspecific mental retardation (MR) may be due to an X-linked etiology, it was Lehrke (1972) and Turner and Turner (1974) who underlined the significance of X-linkage by concluding that it may be the reason for nonspecific MR in 20% or more of affected males.

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Genetic Counseling,cts. In North America at least, prospective parents, alert to such opportunities for prevention, have been quick to enlist the aid of the legal profession when the chance to avoid a serious congenital defect has been missed. As a consequence, successful claims by plaintiffs have helped to catalyze t

原始

Amniocentesis,to treat polyhydramnios (Lambl, 1881; Schatz, 1882). In 1930, Menées et al. (1930) used amniocentesis to inject contrast media into the amniotic sac in order to evaluate the fetus and localize the placenta. The procedure of using amniocentesis to introduce hypertonic saline into the amniotic sac for

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Amniotic Fluid,al diagnosis, allowing increasingly accurate assessment of fetal physiology and metabolism. Since the amniotic fluid can be viewed as an extension of the fetal extracellular space (Lind et al., 1969; Lind and Hytten, 1970), an understanding of its origin, formation, and chemical constitution is cruc

Commentary

Amniotic Fluid Cell Culture,(Milunsky, 1979), and the reader is encouraged to peruse that chapter along with the present one. Much valuable information deriving from the extensive personal experience of the author of that chapter (Milunsky, 1973, 1979) has remained accurate and timely, and thus will not be repeated here. This

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Prenatal Diagnosis of Chromosome Abnormalities,ination can be made by examination of the X-chromatin body in human amniotic fluid cells. A decade later, Steele and Breg (1966) succeeded in culturing amniotic fluid cells and karyotyping fetal chromosomes. This discovery advanced the role of genetic counseling for parents at risk of having a chrom