Tissue variations of mosaic genome-wide paternal uniparental disomy and phenotype of multi-syndromal congenital hyperinsulinism
نویسندگان
چکیده
منابع مشابه
Paternal uniparental disomy 14 and related disorders
Although recent studies in patients with paternal uniparental disomy 14 [upd(14)pat] and other conditions affecting the chromosome 14q32.2 imprinted region have successfully identified underlying epigenetic factors involved in the development of upd(14)pat phenotype, several matters, including regulatory mechanism(s) for RTL1 expression, imprinting status of DIO3 and placental histological char...
متن کاملUniparental disomy and prenatal phenotype
RATIONALE Uniparental disomy (UPD) gives a description of the inheritance of both homologues of a chromosome pair from the same parent. The consequences of UPD depend on the specific chromosome/segment involved and its parental origin. PATIENT CONCERNS We report prenatal phenotypes of 2 rare cases of UPD. DIAGNOSES The prenatal phenotype of case 1 included sonographic markers such as enlarg...
متن کاملCoexistence of Mosaic Uniparental Isodisomy and a KCNJ11 Mutation Presenting as Diffuse Congenital Hyperinsulinism and Hemihypertrophy
BACKGROUND Isolated hyperinsulinaemic hypoglycaemia (HH) commonly results from recessively inherited mutations in the ABCC8 and KCNJ11 genes that are located on chromosome 11p15.1. More rarely, HH can feature in patients with Beckwith-Wiedemann syndrome (BWS), a congenital overgrowth disorder, resulting from defects at a differentially methylated region telomeric to the K-ATP channel genes at c...
متن کاملCongenital hyperinsulinism in children with paternal 11p uniparental isodisomy and Beckwith-Wiedemann syndrome.
BACKGROUND Congenital hyperinsulinism (HI) can have monogenic or syndromic causes. Although HI has long been recognised to be common in children with Beckwith-Wiedemann syndrome (BWS), the underlying mechanism is not known. METHODS We characterised the clinical features of children with both HI and BWS/11p overgrowth spectrum, evaluated the contribution of KATP channel mutations to the molecu...
متن کاملPaternal uniparental disomy for chromosome 6 causes transient neonatal diabetes.
We report an infant with intrauterine growth retardation and transient neonatal diabetes who has paternal uniparental disomy for chromosome 6. The infant was not dysmorphic and had no congenital anomalies. To our knowledge, this is the third case of paternal uniparental disomy occurring in an infant with transient neonatal diabetes, thus confirming the association.
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ژورنال
عنوان ژورنال: European Journal of Medical Genetics
سال: 2020
ISSN: 1769-7212
DOI: 10.1016/j.ejmg.2019.02.004