OBJECTIVE: To report 2 patients with haploinsufficiency of hepatic nuclear factor 1 homeobox B (HNF1B) that results in the onset of maturity onset diabetes of the young type 5 (MODY5) before 3 years of age. METHODS: We present 2 unusual patients with MODY5 that was diagnosed at 33 and 22 months of age, respectively. We describe the presentations, clinical course, and genetic tests of both patients, and lastly, we review the literature on the prevalence and the age of presentation of MODY5 both in children and in adult patients. RESULTS: The first patient had severe congenital renal dysplasia, and deoxyribonucleic acid microarray indicated the deletion of 17q12. Hemoglobin A1c (HbA1c) was obtained due to the concern of MODY5, and the initial level (6.6%, 49 mmol/mol) was abnormally elevated. The second patient had mild renal dysplasia and 17q12 deletion encompassing the HNF1B gene. Hyperglycemia was identified during an episode of respiratory illness. HbA1c (6.2%, 44 mmol/mol) level was abnormally elevated. Pancreatic autoantibodies were absent in both patients. Diet modification resulted in an improvement of HbA1c in both patients. CONCLUSION: Our report highlights the importance of considering MODY5 in patients with congenital anomalies of kidney. Identification of children with MODY5 permits early management of hyperglycemia.
OBJECTIVE: To report 2 patients with haploinsufficiency of hepatic nuclear factor 1 homeobox B (HNF1B) that results in the onset of maturity onset diabetes of the young type 5 (MODY5) before 3 years of age. METHODS: We present 2 unusual patients with MODY5 that was diagnosed at 33 and 22 months of age, respectively. We describe the presentations, clinical course, and genetic tests of both patients, and lastly, we review the literature on the prevalence and the age of presentation of MODY5 both in children and in adult patients. RESULTS: The first patient had severe congenital renal dysplasia, and deoxyribonucleic acid microarray indicated the deletion of 17q12. Hemoglobin A1c (HbA1c) was obtained due to the concern of MODY5, and the initial level (6.6%, 49 mmol/mol) was abnormally elevated. The second patient had mild renal dysplasia and 17q12 deletion encompassing the HNF1B gene. Hyperglycemia was identified during an episode of respiratory illness. HbA1c (6.2%, 44 mmol/mol) level was abnormally elevated. Pancreatic autoantibodies were absent in both patients. Diet modification resulted in an improvement of HbA1c in both patients. CONCLUSION: Our report highlights the importance of considering MODY5 in patients with congenital anomalies of kidney. Identification of children with MODY5 permits early management of hyperglycemia.
Authors: E L Edghill; C Bingham; A S Slingerland; J A L Minton; C Noordam; S Ellard; A T Hattersley Journal: Diabet Med Date: 2006-12 Impact factor: 4.359
Authors: Rhian L Clissold; Charles Shaw-Smith; Peter Turnpenny; Benjamin Bunce; Detlef Bockenhauer; Larissa Kerecuk; Simon Waller; Pamela Bowman; Tamsin Ford; Sian Ellard; Andrew T Hattersley; Coralie Bingham Journal: Kidney Int Date: 2016-05-24 Impact factor: 10.612