Hepatocyte Nuclear Factor 1beta-Associated Kidney Disease: More than Renal Cysts and Diabetes
SourceJournal of the American Society of Nephrology, 27, 2, (2016), pp. 345-353
Article / Letter to editor
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Journal of the American Society of Nephrology
SubjectRadboudumc 11: Renal disorders RIHS: Radboud Institute for Health Sciences; Radboudumc 11: Renal disorders RIMLS: Radboud Institute for Molecular Life Sciences
Hepatocyte nuclear factor 1beta (HNF1beta)-associated disease is a recently recognized clinical entity with a variable multisystem phenotype. Early reports described an association between HNF1B mutations and maturity-onset diabetes of the young. These patients often presented with renal cysts and renal function decline that preceded the diabetes, hence it was initially referred to as renal cysts and diabetes syndrome. However, it is now evident that many more symptoms occur, and diabetes and renal cysts are not always present. The multisystem phenotype is probably attributable to functional promiscuity of the HNF1beta transcription factor, involved in the development of the kidney, urogenital tract, pancreas, liver, brain, and parathyroid gland. Nephrologists might diagnose HNF1beta-associated kidney disease in patients referred with a suspected diagnosis of autosomal dominant polycystic kidney disease, medullary cystic kidney disease, diabetic nephropathy, or CKD of unknown cause. Associated renal or extrarenal symptoms should alert the nephrologist to HNF1beta-associated kidney disease. A considerable proportion of these patients display hypomagnesemia, which sometimes mimics Gitelman syndrome. Other signs include early onset diabetes, gout and hyperparathyroidism, elevated liver enzymes, and congenital anomalies of the urogenital tract. Because many cases of this disease are probably undiagnosed, this review emphasizes the clinical manifestations of HNF1beta-associated disease for the nephrologist.
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