ESPE Abstracts

Context: Pubertal timing in boys is associated with body mass index (BMI). Studies consistently report an inverse correlation of BMI and pubertal timing within the normal BMI range. However, observations in obese boys are conflicting with different studies reporting either early or delayed pubertal onset in obese boys.Objectives: We aimed to assess the association of clinically assessed initial milestones of male puberty...

Background: Initiation and progression of puberty requires concerted action of activating and inhibiting factors. Recently, cases of central precocious puberty have been linked to loss-of-function mutations of makorin RING-finger protein 3 (MKRN3) indicating a pivotal inhibitory role of MKRN3 on GnRH secretion.Objective and hypotheses: To investigate peripubertal circulating MKRN3 levels in healthy boys.Method: Healthy boys (n<...

Background: Prader-Willi syndrome (PWS) is a rare and complex genetic disorder characterised in neonates by hypotonia and feeding problems. French birth incidence has never been reported.Objective and hypotheses: To evaluate incidence of PWS at birth in France.Method: Identification of patients with a molecular diagnosis of PWS born between January 1st, 2013 and December 31st, 2013 was obtained by combining va...

Background: The aim of this study was to examine plasma visfatin levels in pediatric patients with type 1 diabetes (T1D). Visfatin, a novel adipokine, is predominantly secreted by visceral adipose tissue and seems to have insulin-mimetic effects. It has not been studied in children and adolescents with type 1 diabetes (T1D) yet.Objectives: We studied 124 subjects; 62 patients with T1D: 31 girls, mean age 13.7±3.7 years; mean duration of diabetes 5.9...

Background: In the last decade, an increase in the incidence of type 1 diabetes mellitus (T1D) has been observed worldwide, as well as an increase in the incidence of allergies in childhood. Both diseases are characterized by an imbalance between Th1- and Th2 cells. Autoimmune disorders are considered to be associated with a Th1 immune response while allergic diseases with a Th2 response. However, studies conducted to find a correlation between T1D and atopic diseases are hete...

Objective: X-linked agammaglobulinemia (XLA) is a kind of primary immunodeficiency disease caused by mutations in the gene encoding Bruton agammaglobulinemia tyrosine kinase (BTK). This study, we identified a novel in frame deletion mutation in exon11, c.902 _ c.904 delAAG(p.e301 _ g302 delinsG) in BTK gene and evaluated the function of BTK.Methods: A five-year-old boy presented with recurrent respiratory tract infections. His height wa...

Background: Type 2 diabetes (T2D) is an emerging disease in the pediatric population. T2D is associated with metabolic-associated fatty liver disease (MAFLD). High-density lipoproteins (HDLs) are lipoproteins that are believed to have atheroprotective properties that reduce the risk of cardiovascular disease (CVD). Current evidence suggests that the physicochemical and functional features of HDLs may play a key role in the pathogenesis of atherosclerosis.<...

Background: A few patients with NS have been reported to harbour pathogenic mutations in LZTR1 gene. RAS regulation by LZTR1-mediated ubiquitination provides an explanation for the role of LZTR1 in human disease. Mutations in this gene could hence lead to NS phenotype. Three patients with mutations in this gene and compatible NS phenotype are herein described.Case 1: A 5 year-old boy with bilateral cryp...

Introduction: Short stature is a multifactorial condition caused by both genetic and environmental factors. Genetic causes include chromosomal disorders and diseases inherited by monogenic and multifactorial inheritance. The purpose of genetic evaluation in short stature is not only for diagnosis, but also to provide additional information to the patients and their families about prognosis of the disease, treatment approaches and genetic counseling.<p clas...

Glutamic acid decarboxylase (GAD) is the enzyme that catalyzes the conversion of L-glutamat into GABA, one of the classical neurotransmitters with neuroinhibitory function. GAD is present in GABAergic neurons and in pancreatic beta cells. It is remarkable that Anti-GAD antibody(Anti-GADab) can have different disease manifestations, i.e., Type 1 diabetes mellitus (T1DM), Stiff-Person Syndrome, limbic encephalitis (LE), epilepsy. Cooccurence of T1DM and LE is reported in the lit...