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Dent disease type 2

Summary

Excerpted from the GeneReview: Dent Disease
Dent disease, an X-linked disorder of proximal renal tubular dysfunction, is characterized by low molecular weight (LMW) proteinuria, hypercalciuria, and at least one additional finding including nephrocalcinosis, nephrolithiasis, hematuria, hypophosphatemia, chronic kidney disease (CKD), and evidence of X-linked inheritance. Males younger than age ten years may manifest only LMW proteinuria and/or hypercalciuria, which are usually asymptomatic. Thirty to 80% of affected males develop end-stage renal disease (ESRD) between ages 30 and 50 years; in some instances ESRD does not develop until the sixth decade of life or later. The disease may also be accompanied by rickets or osteomalacia, growth restriction, and short stature. Disease severity can vary within the same family. Males with Dent disease 2 (caused by pathogenic variants in OCRL) may also have mild intellectual disability, cataracts, and/or elevated muscle enzymes. Due to random X-chromosome inactivation, some female carriers may manifest hypercalciuria and, rarely, renal calculi and moderate LMW proteinuria. Females rarely develop CKD.
Full text of GeneReview (by section):
Summary
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
Chapter Notes
References
Authors:
John C Lieske
Dawn S Milliner
Lada Beara-Lasic
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Available tests

72 tests are in the database for this condition.

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Clinical tests (71 available)

Molecular Genetics Tests

Research tests

Genes See tests for all associated and related genes

  • Also known as: DENT2, Dent-2, INPP5F, LOCR, NPHL2, OCRL-1, OCRL1, OCRL
    Summary: OCRL inositol polyphosphate-5-phosphatase

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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