ESPE Abstracts

Background: Turner syndrome (TS) is a genetic disorder related to complete or partial absense of the second X chromosome. TS is characterized by short stature, multiple skeletal anomalies, gonadal failure, autoimmune diseases and multiple congenital organ anomalies. This study aimed to determine phenotype and karyotype correlation and define the frequency of associated problems in TS patients.Methods: Our retrospective s...

MODY (Maturity Onset Diabetes of Youth), mitochondrial diabetes, Wolfram syndrome, neonatal diabetes and the group of special syndromes seen due to gene defects that cause insulin resistance are called monogenic diabetes. MODY is an autosomal dominant form of diabetes with a relatively young onset. It constitutes 2-5% of all diabetes cases. The presence of more than one affected family member in extended families has facilitated studies of this type of diabetes. In monogenic d...

Hypophosphatasia is characterized by defective mineralization of bone and/or teeth in the presence of low activity of serum and bone alkaline phosphatase. Clinical features range from stillbirth without mineralized bone at the severe end to pathologic fractures of the lower extremities in later adulthood at the mild end. Although the disease spectrum is a continuum, six clinical forms are usually recognized based on age at diagnosis and severity of features: Perinatal (severe)...

The calcium-sensing receptor (CaSR) is a member of the G protein coupled receptor family. It is mostly found in the parathyroid gland and renal tubule. CaSR disorders occur with inherited or acquired mutations. Familial hypocalciuric hypercalcemia syndromes are associated with inactivating mutations in CaSR. The heterozygous form is “benign familial hypercalcemia” and the homozygous form is “neonatal hyperparathyroidism”. In this article, “benign ...

Autoimmune polyglandular syndrome (APS), on the other hand, is a cluster of endocrine disorders resulting from immune dysregulation, often accompanied by damage to non-endocrine organs. There are 2 types of APS: type 1 and type 2 (APS-1 and APS-2). Type 2 APS is characterized by the development of organ- and tissue-specific antibodies. In those with Addison's disease, antibodies to the 21-hydroxylase enzyme found in the adrenal cortex are present in more than 90% of patie...

A defect in one of the 5 enzymes related to the cortisol biosynthesis pathway (cholesterol side chain degradation enzyme, 3-beta-hydroxysteroid dehydrogenase, 17-hydroxylase, 21-hydroxylase and 11-hydroxylase) is responsible for the formation of KAH. Congenital Adrenal Hyperplasia (CAH) is seen in newborn babies with a frequency of 1/10,000-16,000. The most common 21 hydroxylase enzyme deficiency. 3-β-hydroxysteroid dehydrogenase (3βHSD) deficiency is a rare form of ...

Copy-number variation (CNV) is a kind of malfunction of DNA polymerase to produce extra genetic material which leads to more number of repeats in genes. CNVs have been associated with different clinical phenotypes, such as learning disabilities, short stature, and intellectual disability. The chromosomal microarray analysis is an effective diagnostic method for identifying new CNVs and understanding their clinical effects. In this case report, a variation that has not been rep...

Background: Diagnosis of polycystic ovary syndrome (PCOS) in the adolescent is difficult due to high background rate of menstrual irregularity, high prevalence of polycystic morphology and hyper and rogenic features in this population. Also late onset congenital adrenal hyperplasia (LOCAH) mimics PCOS in this period. It is important to distinguish these entities because of the differences in their therapy. The study aimed to find out the frequency of LOCAH in patients who diag...

Background: Obesity has been defined as ‘abnormal or excessive fat accumulation that may impair health’ by World Health Organization.Objective and hypotheses: Although the role of oxidative stress in obesity has been interest of subject in recent studies, comprehensive studies evaluating parameters of oxidant/antioxidant status in children are limited. Moreover, there has been an increasing focus on the relationship between obesity and thyroid ...

Background: Pseudohypoaldosteronism (PHA) is a disorder caused by aldosterone resistance with impaired sodium reabsorption and potassium excretion from the body. PHA is subdivided into primary (genetic) and secondary (transient) forms. Primary PHA is caused by mutations in genes encoding epithelial sodium channel or mineralocorticoid receptors. The secondary PHA may occur due to urinary tract malformations, urinary tract infections (UTI), drugs, etc. We present here two cases ...