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We present the case of a floppy neonate with marked and generalized weakness, respiratory insufficiency and fetal akinesia deformation sequence. The infant showed multiple joint contractures, two bone fractures and needed mechanical ventilation from birth to death at 16 days of age. Electrophysiological assessment showed electrically unexcitable motor and(More)
SHOX and SHOX2 transcription factors are highly homologous, with even identical homeodomains. Genetic alterations in SHOX result in two skeletal dysplasias; Léri-Weill dyschondrosteosis (LWD) and Langer mesomelic dysplasia (LMD), while no human genetic disease has been linked to date with SHOX2. SHOX2 is, though, involved in skeletal development, as shown(More)
Mutations conferring loss of function at the FLNA (encoding filamin A) locus lead to X-linked periventricular nodular heterotopia (XL-PH), with seizures constituting the most common clinical manifestation of this disorder in female heterozygotes. Vascular dilatation (mainly the aorta), joint hypermobility and variable skin findings are also associated(More)
This article briefly reviews the participation of fetal compression, muscular weakness, and fetal akinesia in the genesis of the anomalies found in fetal akinesia deformation sequence (FADS) and oligohydramnios sequence (OS). Both sequences share phenotypic manifestations, such as arthrogryposis, short umbilical cord, and lung hypoplasia, in relation to(More)
We report on a 35-week gestation female fetus with Hutchinson-Gilford progeria (HGP). This patient, who is the first reported with neonatal HGP in the English literature but is the fourth, counting three previous French cases, supports the existence of a more severe prenatal form of progeria. She died 7 hours after birth and presented with intrauterine(More)
In order to investigate the transverse growth of the long bones during intrauterine development in the fetal akinesia deformation sequence (FADS), we studied curarized rat fetuses. Curarization was performed by daily subcutaneous administration of D-Tubocurarine from day 17 of gestation until term. Experimental fetuses were compared with a sham-operated(More)
We performed clinical and autopsy studies on 3 sibs with an acrofacial dysostosis (AFD) syndrome. All 3 died neonatally from respiratory complications derived from their severe mandibular hypoplasia. They presented a malformation syndrome characterized by mandibulofacial dysostosis, predominantly preaxial limb deficiencies, rare postaxial limb anomalies,(More)
We report on 3 patients with Mulibrey nanism (MN), or Perheentupa syndrome: the first 2 sibs from Argentina and a new patient from Spain. All 3 patients had growth failure, short stature, abnormal pigmentary retinal changes, and a J-shaped sella turcica. These findings are considered major criteria of MN. Two had pericardial constriction, which is a(More)
The effects of immobilization on fetal bone development were studied through post-mortem radiographs in 11 newborns with congenital neuromuscular diseases (CNMD) of intrauterine onset. Quantitative parameters were determined in the following bones: tibia, femur, humerus, radius, 3rd lumbar vertebra, and 5th rib. Thirty stillborns or newborns of similar(More)