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J Clin Res Pediatr Endocrinol. 2011;3(1):29-31. doi: 10.4274/jcrpe.v3i1.06. Epub 2011 Feb 23.

A novel pathogenic DNA variation in the OCRL1 gene in Lowe syndrome.

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Division of Pediatric Endocrinology, Department of Pediatrics, School of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey.


The oculocerebrorenal syndrome of Lowe (OCRL) is an X-linked disorder characterized by congenital cataracts, renal tubular dysfunction, cognitive problems and maladaptive behavior. The syndrome is caused by pathogenic DNA variations in the X-linked OCRL1 gene. A 24-month-old boy was referred to our hospital with delayed motor milestones, hypotonia, involuntary purposeless movements of hands and feet, congenital cataract, severe feeding difficulties, and failure to thrive. Physical examination at the age of 24 months revealed a body weight of 7350 g (-5.1 SDS). Length was 71 cm (-5.1 SDS) and head circumference 45 cm (-3.9 SDS). He had deep-set small eyes, frontal bossing, flat occiput, parietal prominence, bilateral congenital cataract, cryptorchid left testis, joint hypermobility, decreased muscle tone, and hyporeflexia. Biochemical analysis revealed the characteristic findings of renal Fanconi syndrome. Genetic analysis showed a novel pathogenic DNA variation (c.1528C>T) in exon 15 of the OCRL1 gene. Clinical findings and genetic analysis confirmed the diagnosis of OCRL syndrome.


Oculocerebrorenal syndrome; novel pathogenic DNA variation

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