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Adding Evidence to the Role of NEUROG1 in Congenital Cranial Dysinnervation Disorders

dc.contributor.authorDupont, J
dc.contributor.authorVieira, JP
dc.contributor.authorTavares, AL
dc.contributor.authorConceição, C
dc.contributor.authorKhan, S
dc.contributor.authorBertoli-Avella, AM
dc.contributor.authorSousa, AB
dc.date.accessioned2021-06-09T08:36:11Z
dc.date.available2021-06-09T08:36:11Z
dc.date.issued2021-04
dc.description.abstractCongenital cranial dysinnervation disorders (CCDDs) are a heterogeneous group of neurodevelopmental phenotypes caused by a primary disturbance of innervation due to deficient, absent, or misguided cranial nerves. Although some CCDDs genes are known, several clinical phenotypes and their aetiologies remain to be elucidated. We describe a 12-year-old boy with hypotonia, developmental delay, sensorineural hearing loss, and keratoconjunctivitis due to lack of corneal reflex. He had a long expressionless face, severe oromotor dysfunction, bilateral agenesis/severe hypoplasia of the VIII nerve with marked atresia of the internal auditory canals and cochlear labyrinth malformation. Trio-exome sequencing identified a homozygous loss of function variant in the NEUROG1 gene (NM_006161.2: c.202G > T, p.Glu68*). NEUROG1 is considered a causal candidate for CCDDs based on (i) the previous report of a patient with a homozygous gene deletion and developmental delay, deafness due to absent bilateral VIII nerves, and severe oromotor dysfunction; (ii) a second patient with a homozygous NEUROG1 missense variant and corneal opacity, absent corneal reflex and intellectual disability; and (iii) the knockout mouse model phenotype which highly resembles the disorder observed in humans. Our findings support the growing compelling evidence that loss of NEUROG1 leads to a very distinctive disorder of cranial nerves development.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationClin Genet . 2021 Apr;99(4):588-593pt_PT
dc.identifier.doi10.1111/cge.13922pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.17/3715
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.subjectNEUROG1pt_PT
dc.subjectAplasia/Hypoplasiapt_PT
dc.subjectCongenital cranial dysinnervation disorderpt_PT
dc.subjectOromotor dysfunctionpt_PT
dc.subjectSensorineural deafnesspt_PT
dc.subjectVestibulo-cochlear nerve aplasiapt_PT
dc.subjectHDE NEU PEDpt_PT
dc.subjectHDE NRADpt_PT
dc.titleAdding Evidence to the Role of NEUROG1 in Congenital Cranial Dysinnervation Disorderspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage593pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage588pt_PT
oaire.citation.titleClinical geneticspt_PT
oaire.citation.volume99pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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