hrp0092p1-283 | Thyroid (1) | ESPE2019

Children with Hashimoto's Thyroiditis have Increased Intestinal Permeability: Results of a Pilot Study

Aydin Banu Kucukemre , Yildiz Melek , Akgun Abdurrahman , Dogan Beyza Belde , Topal Neval , Onal Hasan

Background: Both genetic and environmental factors serve as the trigger of Hashimoto's thyroiditis (HT), but the exact mechanisms are still not fully understood. Increased intestinal permeability was shown to be a constant and early feature of several autoimmune disorders. Although HT is the most common autoimmune disorder worldwide, the role of intestinal permeability in its pathogenesis had received little attention. Human zonulin modulates intracellular...

hrp0089p2-p014 | Adrenals and HPA Axis P2 | ESPE2018

Frequency of Enzyme Deficiencies in a Turkish Cohort of Congenital Adrenal Hyperplasia: A Single-Center Experience with 145 Patients

Yildiz Melek , Onal Hasan , Aydin Banu , Akgun Abdurrahman , Dogan Beyza Belde , Topal Neval , Akcay Teoman , Adal Erdal

Background: Congenital adrenal hyperplasia (CAH) is an autosomal recessive disorder caused by a defect in any of the enzymatic steps of adrenal steroidogenesis. It occurs due to mutations in genes that encode enzymes involved in the synthesis of cortisol from cholesterol. The most common cause is 21-hydroxylase deficiency, with 11-beta hydroxylase, 3-beta hydroxysteroid dehydrogenase, 17-alpha hydroxylase and POR deficiency being among rarer causes.Objec...

hrp0086p1-p554 | Perinatal Endocrinology P1 | ESPE2016

Clinical and Molecular Characteristics of Turkish Patients with Congenital Hyperinsulinism: A Single-Center Experience

Yildiz Melek , Akcay Teoman , Mutlu Neval , Akgun Abdurrahman , Onal Hasan , Ulucan Korkut , Ellard Sian , Flanagan Sarah E.

Background: Congenital hyperinsulinism (HI) is the most common cause of persistent hypoglycemia which needs a prompt diagnosis and relevant treatment to avoid brain damage. So far, mutations in 11 key genes are known to cause monogenic forms of HI.Objective and hypotheses: The aim of this study was to characterize the clinical and molecular features of Turkish congenital HI patients and analyze the genotype/phenotype correlations.M...