European journal of endocrinology · 2011
Familial neurohypophyseal diabetes insipidus due to a novel mutation in the arginine vasopressin-neurophysin II gene.
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de Fost M, van Trotsenburg A S P, van Santen H M, Endert E, van den Elzen C, Kamsteeg E J, Swaab D F, Fliers E
Аннотация
BACKGROUND: Familial neurohypophyseal (central) diabetes insipidus (DI) is caused by mutations in the arginine vasopressin-neurophysin II (AVP-NPII) gene. The majority of cases is inherited in an autosomal dominant way. In this study, we present the clinical features of a mother and her son with autosomal dominant neurohypophyseal DI caused by a novel mutation.
CASE: A thirty-four-year-old woman and her three-year-old son were evaluated because of polyuria and polydipsia since the age of 1.5 years onwards. Both patients were subjected to a water deprivation test confirming the diagnosis of central DI. Magnetic resonance imaging of the brain of the mother showed a hypothalamus without apparent abnormalities and a relatively small neurohypophysis without a hyperintense signal. Mutation analysis showed a c.322G>T (p.?/p.Glu108X) in Exon 2 of the AVP-NPII gene in both mother and son.
DISCUSSION: This study reports neurohypophyseal DI in a mother and her son due to a novel mutation in Exon 2 of the AVP-NPII gene. Clinical and pathophysiological aspects of this disease are shortly reviewed and discussed.
CASE: A thirty-four-year-old woman and her three-year-old son were evaluated because of polyuria and polydipsia since the age of 1.5 years onwards. Both patients were subjected to a water deprivation test confirming the diagnosis of central DI. Magnetic resonance imaging of the brain of the mother showed a hypothalamus without apparent abnormalities and a relatively small neurohypophysis without a hyperintense signal. Mutation analysis showed a c.322G>T (p.?/p.Glu108X) in Exon 2 of the AVP-NPII gene in both mother and son.
DISCUSSION: This study reports neurohypophyseal DI in a mother and her son due to a novel mutation in Exon 2 of the AVP-NPII gene. Clinical and pathophysiological aspects of this disease are shortly reviewed and discussed.