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Eur J Med Genet. 2018 Dec;61(12):733-737. doi: 10.1016/j.ejmg.2018.06.001. Epub 2018 Jun 5.

Biallelic mutations in RTTN are associated with microcephaly, short stature and a wide range of brain malformations.

Author information

1
Centre for Medical Genetics, UZ Brussel, Brussels, Belgium; Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Brussels, Belgium. Electronic address: katrien.stouffs@uzbrussel.be.
2
Centre de Génétique Humaine, Institut de Pathologie et de Génétique, Charleroi (Gosselies), Belgium.
3
Department of Radiology, UZ Brussel, Brussels, Belgium.
4
Centre for Medical Genetics, UZ Brussel, Brussels, Belgium; Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Brussels, Belgium.
5
Pediatric Neurology Clinic, Alexandru Obregia Hospital, Bucharest, Romania.
6
Département de Neuro-pédiatrie, Clinique Sainte-Elisabeth, Namur, Belgium.
7
Centre for Medical Genetics, UZ Brussel, Brussels, Belgium.
8
Neurogenetics Research Group, Vrije Universiteit Brussel, Brussels, Belgium; Pediatric Neurology Unit, Department of Pediatrics, UZ Brussel, Brussels, Belgium.

Abstract

Biallelic mutations in the RTTN gene have been reported in association with microcephaly, short stature, developmental delay and malformations of cortical development. RTTN mutations have previously shown to link aberrant ciliary function with abnormal development and organization of the human cerebral cortex. We here report three individuals from two unrelated families with novel mutations in the RTTN gene. The phenotype consisted of microcephaly, short stature, pachygyria or polymicrogyria, colpocephaly, hypoplasia of the corpus callosum and superior vermis. These findings provide further confirmation of the phenotype related to pathogenic variants in RTTN.

KEYWORDS:

Malformations of cortical development; Microcephaly; Pachygyria; Polymicrogyria; RTTN; Rotatin; Short stature

PMID:
29883675
DOI:
10.1016/j.ejmg.2018.06.001
[Indexed for MEDLINE]

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