Möbius' syndrome, also known as Möbius' sequence, is a nonprogressive cranial dysinnervation disorder characterized by congenital facial and abducens nerve paralysis. Here, we report a 5-day-old girl who was conceived after in vitro fertilization with poor suck and facial paralysis. She had bilaterally ptosis and lateral gaze limitation, left-sided deviation of the tongue, dysmorphic face, hypoplastic fingers and finger nails on the left hand, and was diagnosed as having Möbius' syndrome. Involvement of other cranial nerves such as three, four, five, nine, 9 and 12, and limb malformations may accompany this syndrome. However, several factors have been proposed for the etiology, some rare cases have also been reported with artificial reproductive technologies. Feeding difficulties and aspiration are the main problems encountered in infancy. The other cranial nerves should be examined further in newborns who present with congenital facial palsy, and other cranial dysinnervation disorders should be considered in the differential diagnosis.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5644584 | PMC |
http://dx.doi.org/10.5152/TurkPediatriArs.2017.2931 | DOI Listing |
J Child Neurol
February 2025
Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, No.639, Zhizaoju Road, Huangpu District, 200011, Shanghai, China.
J Med Genet
January 2025
Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
encodes a kinesin motor protein associated with isolated congenital fibrosis of the extraocular muscles (CFEOM), which occurs when the autoinhibitory interaction between its motor and third coiled-coil domains is disrupted. In this study, we describe a female child who is heterozygous for a novel de novo missense variant in p.Leu664Pro, located in the second coiled-coil domain that was absent in her unaffected parents and in healthy population cohorts.
View Article and Find Full Text PDFJ AAPOS
December 2024
Department of Ophthalmology, Gold Coast University Hospital, Gold Coast, Queensland; School of Medicine, Bond University, Gold Coast, Queensland, New Zealand.
Congenital cranial dysinnervation disorders involve abberant connections between cranial nerves, often resulting in synkinetic activation of target muscles. Marcus-Gunn jaw winking ptosis and Duane retraction syndrome are some of the more well-known examples of this phenomenon. We present serial video of a child with congenital trigemino-abducens synkinesis, a lesser known congenital cranial dysinnervation disorder, to demonstrate the characteristics of this likely under-diagnosed presentation.
View Article and Find Full Text PDFNat Commun
September 2024
Department of Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.
Unsolved Mendelian cases often lack obvious pathogenic coding variants, suggesting potential non-coding etiologies. Here, we present a single cell multi-omic framework integrating embryonic mouse chromatin accessibility, histone modification, and gene expression assays to discover cranial motor neuron (cMN) cis-regulatory elements and subsequently nominate candidate non-coding variants in the congenital cranial dysinnervation disorders (CCDDs), a set of Mendelian disorders altering cMN development. We generate single cell epigenomic profiles for ~86,000 cMNs and related cell types, identifying ~250,000 accessible regulatory elements with cognate gene predictions for ~145,000 putative enhancers.
View Article and Find Full Text PDFbioRxiv
September 2024
F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!