Turk J Pediatr
Division of Pediatric Nephrology, Department of Pediatrics, Gazi University, Faculty of Medicine, Ankara, Turkey.
Published: March 2016
Nephronophthisis (NPHP) is an autosomal recessive disease characterized by renal tubular basement membrane disruption, interstitial fibrosis and tubular cysts that progresses to end-stage kidney disease (ESKD). There are also characteristic extrarenal manifestations. Mutations of more than thirteen genes that can cause NPHP have been identified. We herein report four siblings from a consanguineous family, who carried the same NPHP4 mutations but presented with different disease phenotypes ranging from enuresis nocturna to ESKD. Diluted urine and echogenic kidneys in ultrasound examination were consistent, which is typical for 100% of the NPHP cases that have been described. Chronic kidney disease developed in the older two brothers. The observed phenotypic differences are likely to be related to environmental and epigenetic factors, oligogenic inheritance and modifier genes affecting the age of presentation of signs and symptoms. NPHP should be considered as an important cause of CKD in children, which insidiously progresses to ESKD, with no specific therapy available.
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J Clin Lab Anal
June 2024
Department of Medical Genetics, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
Background: Nephronophthisis-4 (NPHP4) is an inherited renal ciliopathy described by renal fibrosis and progressive impairment of kidney function. This study aimed to investigate the genetic basis and clinical manifestations of NPHP4 in two Iranian siblings.
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Cardiovascular Genetics, Charité Universitätsmedizin Berlin, Berlin, Germany.
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