ESPE Abstracts

Background: Beta thalassemia major (BTM) is considered a major health problem. Despite optimal conventional treatment, bone disease comprising of low bone mineral density (BMD), bone pain, and fractures is still a characteristic feature of thalassemia. The etiology of bone disease in thalassemia is multifactorial. vitamin D receptor (VDR) mediates the action of 1,25(OH)2D, The VDR genetic variations may be responsible for modifying the activity of VDR protein.<p class="abs...

Introduction: Heterozygous inactivating mutations that occur in the calcium sensing receptor (CaSR) gene often lead to benign mild to moderate and parathormone (PTH) dependent familial hypocalciuric hypercalcemia (FHH). Neonatal severe hyperparathyroidism is a clinical condition that develops due to homozygous inactivating mutations in the CASR gene and results in severe, life-threatening hypercalcemia. In this study, we aimed to discuss the differences in clinical, genetic, l...

Introduction: Ovarian stimulation syndrome (OSS) in an infrequent disorder, in preterm infants under 30 weeks gestation. The are very few cases described in the literature. The immaturity, lack of gonadal axis feed-back or mutations in the FSH receptor genes, may explain its physiopathology. We present the case of a 26-week neonate with this syndrome.Case summary: 26-week newborn with extremely low weight (460g) born by emergency cesarean section due to ...

Background: Congenital adrenal hyperplasia (CAH) is a pathology with a genetic deficiency of one of the enzymes of steroidogenesis. It is due to 21 –Ohase deficiency in 90–95% of cases. The complete deficiency of this enzyme is responsible for the classic form (sexual ambiguity at birth with or without salt loss). While the partial deficiency results in a polymorphic clinical presentation occurring in childhood or adolescence. In rare neglected cases, the diagnosis i...

Background: Our patient, a male infant has bilateral cleft lip and palate, bilateral split hand and foot, semilobar holoprosencephaly and specific pituitary defects (cranial diabetes insipidus, gonadotrophin deficiency). He developed tumoral calcinosis at 16 months.Objective and hypotheses: Our patient’s phenotype is suggestive of Hartsfield syndrome. We hypothesise that he harbours a FGFR1 mutation given recently published findings associa...

Background: Patients with Klinefelter syndrome (KS) have an increased risk for osteoporosis and fractures in adulthood. Data on bone mineralization in adolescence are limited, although it is a known at-risk period for vitamin D deficiency, low calcium intake and evolving hypogonadism.Objective and hypotheses: To study the bone mineralization in KS adolescents and its relationship with vitamin D/calcium and gonadal status. KS adolescents with low calcium ...

Background: Hypophosphatemic rickets (HR) is a group of rare disorders caused by an excessive renal phosphate wasting. The dominant form of X-linked HR (XLHR) is caused by mutation in PHEX (phosphate-regulating endopeptidase) gene. XLHR phenotype is characterized mainly by rickets, bone deformities, short stature, dental anomalies, hypophosphatemia, low renal phosphate reabsorption, normal serum calcium level, hypocalciuria, normal/low serum level of vitamin D (1,25(O...

Background: Hypoparathyroidism is a rare disease characterized by inadequate parathyroid hormone (PTH), resulting in hypocalcemia and hyperphosphatemia. Hypoparathyroidism can be transient, inherited, or acquired, and is caused by inability to synthesize or secrete PTH, abnormal parathyroid gland development, destruction of parathyroid tissue, or peripheral resistance to PTH.Methods: Medical records from 20 children and adolescents diagnosed with hypopar...

Background: Sertoli-Leydig Cell Tumors (SLCT) account only for 1% of all ovarian neoplasia, occur more commonly in the second or third decade of life and seldom secrete tumor markers. The experience in adolescence is limited.Objective and hypothesis: To report the hormonal and biological profile of a SCLT in a young adolescent. Ovarian tumor markers as well as FDG-PET scanning might be helpful in diagnosing ovarian malignancy in case of normal ultrasound...

Background: Obesity is one of health problems worldwide. Acanthosis nigricans has been considered as a symptom of hyperinsulinemia in children.Objective and hypotheses: We designed this study to evaluate and compare clinical and laboratory findings in Iranian obese children with and without acanthosis nigricans.Material: Seventy-one obese children enrolled. Fasting blood sugar, total cholesterol, triglycerides, alanine aminotransfe...