hrp0082p1-d1-182 | Perinatal and Neonatal Endocrinology | ESPE2014

Clinical and Histological Heterogeneity of Congenital Hyperinsulinism Due to Paternally Inherited Heterozygous ABCC8/KCNJ11 Mutations

Arya Ved Bhushan , Guemes Maria , Nessa Azizun , Alam Syeda , Shah Pratik , Gilbert Clare , Senniappan Senthil , Flanagan Sarah E , Ellard Sian , Hussain Khalid

Context: Congenital hyperinsulinism (CHI) has two main histological types – diffuse and focal. Diffuse CHI is due to recessive or dominant mutations in ABCC8/KCNJ11. Focal disease is due to somatic maternal allele loss of 11p15 in pancreatic β-cells along with paternally inherited germline ABCC8/KCNJ11 mutation. Fluorine-18 L-3, 4-dihydroxyphenylalanine positron emission tomography computerized tomography (18F DOPA–PET...

hrp0084p3-1061 | Hypo | ESPE2015

Clinical Characteristics and Molecular Analysis of Turkish Patients with Congenital Hyperinsulinism: a Single-Centre Experience with 15 Cases

Agladioglu Sebahat Yilmaz , Aycan Zehra , Cetinkaya Semra , Erdeve Senay Savas , Sagsak Elif , Keskin Meliksah , Kurnaz Erdal , Flanagan Sarah E , Ellard Sian , Hussain Khalid

Objective: Congenital hyperinsulinism (CHI) is the most common cause of hypoglycaemia in children. Early identification and management is crucial to prevent irreversible brain damage. CHI has a heterogeneous clinical presentation, histology and molecular biology. We aim to discuss the clinical characteristics and genotype–phenotype correlations of Turkish CHI patients from a single centre.Design and methods: A total of 15 patients with CHI were recr...

hrp0089p2-p182 | Fetal, Neonatal Endocrinology and Metabolism P2 | ESPE2018

Clinical Characterstics, Genotype-Phenotype Correlations and Follow Up of Patients with Congenital Hyperinsulinaemic Hypoglycaemia; Single Center Experience from a Southeastern City of Turkey

Ozbek Mehmet Nuri , Demirbilek Huseyin , Haliloglu Belma , Demiral Meliha , Baran Riza Taner , Ellard Sian , Houghton Jayne , Flanagan Sarah E , Hussain Khalid

Objective: Congenital Hyperinsulinism (CHI) is a clinically, genetically and histologically heterogenous diesease. In recent years substantial developements have been observed in the genetics, imaging techniques and treatment options. We herein present the clinical characteristics, genetics and follow-up of 31 CHI patients from a single paediatric endocrine center with a particular emphasis on the new treatment options.Patients and method: Clinical chara...

hrp0082fc9.4 | Beta cells | ESPE2014

Clinical Characteristics and Molecular Genetics Analysis of 20 Patients with Neonatal Diabetes Mellitus from a Single Centre of the South-Eastern Region of Turkey

Demirbilek Huseyin , Arya Ved Bhushan , Nuri Ozbek Mehmet , Houghton Jayne , Baran Riza Taner , Tekkes Selahattin , Mackay Deborah , Flanagan Sarah E , Ellard Sian , Hussain Khalid

Background: Neonatal diabetes mellitus (NDM), either transient (TNDM) or permanent (PNDM), is a rare form of monogenic diabetes, and usually presents in the first 6 months of life.Objective and Hypotheses: To describe the clinical characteristics and molecular genetics of a large Turkish cohort of NDM from a single centre.Method: NDM patients presenting to Diyarbakır Children State Hospital between 2010 and 2013 were prospecti...

hrp0084p3-1078 | Hypo | ESPE2015

Long Acting Somatostatin Analogues in the Management of Congenital Hyperinsulinism in Cases with Poor Compliance to Conventional Therapy

Demirbilek Huseyin , Oncel Kahraman , Ozbek Mehmet Nuri , Deniz Ahmet , Baysal Birsen , Arya Ved Bhushan , Flanagan Sarah E , Ellard Sian , Hussain Khalid

Background: Congenital hyperinsulinism (CHI), is the most common cause of severe hypoglycaemia in neonates and infants. The cornerstone of medical therapy is diazoxide. Octreotide, a somatostatin analogue, is the second therapeutic option in diazoxide unresponsive cases. However, due to its short half-life and requirement of multiple daily doses, lack of compliance may cause recurring hypoglycaemia and related neurological deficits, particularly for the family with low socioec...

hrp0092p1-207 | Fetal, Neonatal Endocrinology and Metabolism (to include Hypoglycaemia) (1) | ESPE2019

Clinical characteristics and long term follow up of 17 patients with permanent neonatal diabetes due to PTF1A distal enhancer mutations

Demirbilek Huseyin , Cayir Atilla , DeFranco Elisa , Kor Yilmaz , Yildiz Melek , Yildirim Ruken , Baran Riza Taner , Demiral Meliha , Haliloglu Belma , Flanagan Sarah E , Ellard Sian , Hussain Khalid , Ozbek Mehmet Nuri

Background: Pancreas transcription factor-1 alpha (PTF1A), encoded by the PTF1A gene, is a beta helix loop(bHLH) protein which involved in the development of the pancreas and cerebellar neurogenesis. Although mutations of PTF1A cause permanent neonatal diabetes(PNDM), pancreas agenesis and cerebellar agenesis, PTF1A enhancer mutations reported causing PNDM and isolated pancreas agenesis. In the present study, we evaluate the phenotyp...

hrp0086p1-p235 | Diabetes P1 | ESPE2016

The Genetic Causes and Phenotypic Characteristics of Egyptian Patients with Neonatal Diabetes Mellitus

Elkaffas Rasha , Musa Noha , Franco Elisa De , Madani Hanan A , Shaalan Yomna , El-Kaffas Rania M.H. , Hassan Mona , Hafez Mona , Kholi Badawy El , Flanagan Sarah E , Ellard Sian , Hussain Khalid

Background: Neonatal Diabetes Mellitus (NDM) is a rare form of monogenic diabetes that typically presents during the first 6 months of life. Its prevalence is about 1:100 000 live births; however it may rise up to 1:29 000 in highly consanguineous populations. Mutations in 22 different genes are reported; with the most common cause being potassium channel subunit gene (KCNJ11/ABCC8) mutations. However, causative mutations among consanguineous populations seem to diffe...

hrp0082p3-d1-874 | Perinatal and Neonatal Endocrinology | ESPE2014

Clinical Characteristics and Phenotype–Genotype Analysis in Turkish Patients with Congenital Hyperinsulinism; Predominance of Recessive KATP Channel Mutations

Demirbilek Huseyin , Arya Ved Bhushan , Ozbek Mehmet Nuri , Akinci Aysehan , Dogan Murat , Demirel Fatma , Houghton Jayne , Kaba Sultan , Guzel Fatma , Baran Riza Taner , Unal Sema , Tekkes Selahattin , Flanagan Sarah E , Ellard Sian , Husssain Khalid

Background: Congenital hyperinsulinism (CHI) is the most common cause of hyperinsulinaemic hypoglycaemia in the neonatal, infancy, and childhood periods. Its clinical presentation, histology and underlying molecular biology are extremely heterogeneous.Objective and hypotheses: To describe the clinical characteristics, analyse the genotype–phenotype correlations and describe the treatment outcome of Turkish CHI patients.Method:...

hrp0084p2-278 | Diabetes | ESPE2015

Neonatal Diabetes – Experience from a Single Centre in Sri Lanka

Atapattu Navoda , Vithanage Vasundara , de Silva Kirikankanange Shamya Harshini , de Silva Daham Haresha , Jayathilaka Mala Mangalika , Hattersley Andrew T , Ellard Sian , Flanagan Sarah E , Houghton J A L , Hussain Khalid

Background: Neonatal diabetes (NDM) is a rare form of monogenic diabetes which usually presents before 6 months of age. Both transient and permanent NDM have been described.Objective: To report the molecular genetics and clinical characteristics of patients with NDM from a single centre in Sri Lanka.Method: Retrospective analysis of clinical and molecular genetic data from patients referred to Lady Ridgeway Hospital Endocrinology u...

hrp0094fc4.6 | Diabetes | ESPE2021

Clinical and genetic heterogeneity of HNF4A/HNF1A mutations in a multicentre paediatric cohort

McGlacken-Byrne Sinead M. , Mohammad Jasmina Kallefullah , Conlon Niamh , Gubaeva Diliara , Siersbaek Julie , Jorgen Schou Anders , Demibilek Huseyin , Dastamani Antonia , Houghton Jayne , Brusgaard Klaus , Melikyan Maria , Christesen Henrik , Flanagan Sarah E. , Murphy Nuala P. , Shah Pratik ,

Objective: The complex clinical phenotypes arising from HNF4A and HNF1A mutations are similar and include diazoxide-responsive CHI from infancy and maturity-onset diabetes of the young (MODY) from adolescence. We aimed to characterise the clinical and genetic aspects of a cohort of paediatric patients with HNF4A or HNF1A mutations.Methods: Patients from five international centres over ...