ESPE Abstracts

KBG syndrome (OMIM 148050) is a an emerging autosomal dominant disorder caused by heterozygous mutations in the ANKRD11 gene or deletions of 16q24.3, characterized by developmental delay, short stature, dysmorphic facial features and skeletal anomalies. Patients and methods: We report 22 patients with dysmorphic features, learning disabilities, behavior problems and macrodontia, where a clinical diagnosis of KBG was suspected. An ANKRD11 defect was confirmed in 12 patients. In...

The LMNA gene encodes lamin A/C, intermediate filament proteins associated with the inner nuclear membrane. Mutations in LMNA gene cause a wide range of human diseases sometimes called ‘laminopathies’ that affect different organ systems depending upon the mutation. Most laminopathies involve tissue of mesenchymal origins, resulting in such features as cardiac disorders and/or muscular dystrophy, lipodystrophy or progeroid syndromes. The group of progeroid syndromes i...

Background: The estimated estradiol (E2) dose required for pubertal induction in hypogonadal girls is about 1/10 of the adult dose. Previous studies have shown that it is possible to provide an individualized and physiological dose for pubertal induction by cutting the patch into smaller pieces. However, the manufacturers do not guarantee stability or utility of cut E2 patches, primarily designed for postmenopausal women, and have no interest in that eval...

Background: Differences of sex development (DSDs) (conditions with atypical development of chromosomal, gonadal or anatomic sex) are classified into three groups: sex chromosome DSD, 46,XYDSD and 46,XX DSD. Around 1 newborn in 5000 presents ambiguous genitalia with a major challenge for male or female assignment. The identification of a genetic cause can contribute to a correct diagnosis and to optimize both management and genetic counselling.<p class="abs...

Background: Growth hormone (GH) has been shown to reduce insulin sensitivity in Turner girls, however a compensatory increase of insulin secretion by pancreatic beta cells usually occurs, probably stimulated by GH itself. Oral disposition index (ODI) express the capacity of beta cells to adapt to insulin sensitivity.Objective and hypotheses: To study longitudinally the insulin sensitivity (HOMA-S), the insulin secretion (IGI) and the ODI in a group of gi...

Background: Reduced growth is a common feature in RASopathies. Poor data are available about pubertal spurt and the effect on final height (FH) in patients with these disorders.Objective and hypotheses: To study growth, body proportions, pubertal pattern, and FH including subject treated with GH-therapy for proven GH deficiency.Method: We analized growth trend and body proportions in 88 patients affected by RASopathies with molecul...

Background: Pubertal growth, age of puberty onset and pubertal spurt duration are correlated to final height (FH). Few data are available in subjects with rare genetic syndromes.Objective and hypotheses: To evaluate pubertal pattern and its influence on FH in subjects with different genetic syndromes including the effect of GH-therapy for GH deficiency (GHD) and GnRH analogs for precocious puberty (PP).Method: We studied for growth...

Background: GH has been shown to influence glucose homeostasis through a negative effect on insulin sensitivity followed by a compensatory increase of insulin secretion. However it has been recently reported, in animals and in humans, that GH might stimulate insulin secretion also through a direct effect on the growth and on the function of the pancreatic β cell.Objective and hypotheses: To study longitudinally the insulin sensitivity (HOMA-S), the ...

Background: Familial glucocorticoid deficiency (FGD) is a rare and potentially life-threatening disease, characterized by adrenal insufficiency without mineralocorticoid deficiency. It is diagnosed during the neonatal period but also in childhood. Manifestations are recurrent hypoglycemia, seizures or even coma, chronic fatigue, recurrent infections and skin hyperpigmentation. Mutations on mineralocorticoid receptor 2 (MC2R) gene and on melanocortin-2 receptor accesso...

Background: Autoimmune polyendocrine syndrome type 2 (APS2) is a complex disorder characterised by the obligatory occurrence of Addison disease in combination with thyroid autoimmune disorder and/or type 1 diabetes. APS 2 is the most common autoimmune polyendocrine syndrome and is primarily manifest in adult age. Premature ovarian failure (POF) is defined as sustained amenorrhea before the age of 40 years, FSH levels higher than 40 UI/l and hypoestrogenism associated with infe...