Human Reproduction, Vol 13, 320-323, Copyright © 1998 by Oxford University Press
Y Takai, O Tsutsumi, I Harada, T Fujii, T Kashima, K Kobayashi, T Toda and Y Taketani
We applied microsatellite analysis to prenatal diagnosis of Fukuyama- type
congenital muscular dystrophy (FCMD), an autosomal recessive severe
muscular dystrophy associated with brain malformations. Recent
identification of the FCMD gene locus at 9q31-q33 provided the basis for
prenatal diagnosis and carrier detection. We recently developed new
microsatellite markers which are closer to the FCMD gene and improved the
phenotype probability. Nine fetuses in eight unrelated FCMD families,
including a twin pregnancy, were analysed using the newly developed
markers. Four fetuses showed over 99% probability of being healthy either
as normal homozygote (n = 1) or heterozygote carrier (n = 3) and were born
without signs of FCMD. The other five fetuses were diagnosed with a
probability of FCMD of 99% or greater; all of the latter parents decided to
terminate the pregnancies. Brain malformations characteristic of FCMD in
one of the aborted fetuses confirmed the diagnosis of FCMD at 19 weeks of
gestation.
ARTICLES
Prenatal diagnosis of Fukuyama-type congenital muscular dystrophy by microsatellite analysis
Department of Obstetrics and Gynecology, University of Tokyo, Japan.
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