This report describes a 3-year-old Chinese-Italian boy with Joubert syndrome. Fundus examination showed bilateral optic disc coloboma. Left serous retinal detachment was also found. This ocular finding was not reported in the previous literature. Although Joubert syndrome has many variable phenotypes and the molecular basis is still unknown, the newly reported ocular features suggest that a different genetic form may be present.
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http://dx.doi.org/10.3928/01913913-20091104-08 | DOI Listing |
Int J Biol Sci
January 2025
Department of Basic & Translational Sciences, School of Dental Medicine, University of Pennsylvania, USA.
Inositol polyphosphate-5-phosphatase E (INPP5E) is a 5-phosphatase critically involved in diverse physiological processes, including embryonic development, neurological function, immune regulation, hemopoietic cell dynamics, and macrophage proliferation, differentiation, and phagocytosis. Mutations in cause Joubert and Meckel-Gruber syndromes in humans; these are characterized by brain malformations, microphthalmia, situs inversus, skeletal abnormalities, and polydactyly. Recent studies have demonstrated the key role of INPP5E in governing intracellular processes like endocytosis, exocytosis, vesicular trafficking, and membrane dynamics.
View Article and Find Full Text PDFGenes (Basel)
December 2024
Department of Zoology, Faculty of Biological Sciences, Quaid-i-Azam University, University Road, Islamabad 45320, Pakistan.
Background: Leber congenital amaurosis (LCA) is a congenital onset severe form of inherited retinal dystrophy (IRD) and a common cause of pediatric blindness. Disease-causing variants in at least 14 genes are reported to predispose LCA phenotype. LCA is inherited as an autosomal recessive disease.
View Article and Find Full Text PDFProg Retin Eye Res
December 2024
Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands; Department of Ophthalmology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Retinitis pigmentosa (RP) is a progressive inherited retinal dystrophy, characterized by the degeneration of photoreceptors, presenting as a rod-cone dystrophy. Approximately 20-30% of patients with RP also exhibit extra-ocular manifestations in the context of a syndrome. This manuscript discusses the broad spectrum of syndromes associated with RP, pathogenic mechanisms, clinical manifestations, differential diagnoses, clinical management approaches, and future perspectives.
View Article and Find Full Text PDFClin Genet
December 2024
Department of Medical Genetics, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey.
Renal ciliopathies are a genetically and phenotypically heterogeneous group of diseases characterized by cystic and dysplastic kidneys. The aim of this study was to investigate the correlation between genetic changes that cause renal ciliopathies and phenotypic outcomes. The study group consisted of 137 patients diagnosed with renal ciliopathy disease.
View Article and Find Full Text PDFBMC Pregnancy Childbirth
December 2024
Department of Obstetrics, School of Medicine, Chengdu Women's and Children's Central Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Background: Prenatal whole exome sequencing (WES) is becoming an increasingly used diagnostic tool for fetuses with structural anomalies. However, the identification of variants of uncertain significance (VUS) in clinically relevant genes can significantly complicate prenatal diagnosis and genetic counseling.
Case Presentation: A fetus conceived through in vitro fertilization at the third attempt presented with polydactyly and molar tooth sign at 24 + 6 weeks of gestation.
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