hrp0089p1-p129 | Fat, Metabolism and Obesity P1 | ESPE2018

Early Menarche is Associated with Insulin Resistance and Non-Alcoholic Fatty Liver Disease in Obese Adolescents

Di Sessa Anna , Grandone Anna , Marzuillo Pierluigi , Miraglia del Giudice Emanuele

Background: Menarche is a significant event in the reproductive life of a woman and represents the late event in puberty indicating that a sexually immature child has become reproductively capable. Even though the timing of puberty onset is approximately conserved in different populations, the puberty starts across a wide range of ages in normal girls. However, in the last decades we are observing that girls are experiencing earlier breast development and earlier menarche, als...

hrp0092p1-93 | Growth and Syndromes (to include Turner Syndrome) | ESPE2019

Persisting Embryonal Infundibular Recess in a Patient with Morning Glory Syndrome and Multiple Pituitary Deficiencies

FESTA ADALGISA , GRANDONE ANNA , LUONGO CATERINA , CIRILLO GRAZIA , del GIUDICE EMANUELE MIRAGLIA

A 5-year old boy was referred to our clinic for short stature reported since first years of life. At birth weight and length were normal, psychomotor development was regular, target height was 165.9 cm. At 7 months of life he was subjected to correction of cleft lip-palate. Since 3 years of life he suffered from headache, for which a fundoscopy was performed and revealed a Morning Glory Disc Anomaly (MGDA) of the right eye. At our first visit height was 98.2 cm (-2.5DS), body ...

hrp0089p3-p004 | Adrenals and HPA Axis P3 | ESPE2018

Basal Levels of 17-hydroxyprogesterone can Distinguish Isolated Precocious Pubarche from Non-Classical Congenital Adrenal Hyperplasia in Children: A Prospective Observational study

Grandone Anna , Festa Adalgisa , Mariani Michela , Luongo Caterina , Giudice Emanuele Miraglia del

Background: Basal levels of androgens, in particular 17-OHprogesterone (17OHP), are widely debated as predictors of non-classical congenital adrenal hyperplasia (NCCAH) among patients with precocious pubarche (PP). So many authors suggested the execution of ACTH stimulation test in all children with PP. The aim of our study was to identify clinical and biochemical predictors of NCCAH in children with PP.Methods: We conducted a prospective study of 92 pat...

hrp0089p1-p206 | Pituitary, Neuroendocrinology and Puberty P1 | ESPE2018

MKRN3 Levels in Girls with Central Precocious Puberty During GnRHa Treatment: A Longitudinal Study

Grandone Anna , Cirillo Grazia , Sasso Marcella , Luongo Caterina , Tornese Gianluca , Festa Adalgisa , Giudice Emanuele Miraglia Del

Background: Recently, mutations of makorin RING-finger protein 3 (MKRN3) have been identified in familial central precocious puberty (CPP). Serum levels of this protein decline before the pubertal onset in healthy girls and boys and are lower in patients with CPP compared to prepubertal matched pairs. The aim of the study is to investigate longitudinal changes in MKRN3 circulating levels in patients with CPP before and during GnRHa treatment.Me...

hrp0086rfc12.4 | Neuroendocrinology | ESPE2016

Molecular Screening of MKRN3, DLK1 and KCNK9 Genes in Central Precocious Puberty

Grandone Anna , Sasso Marcella , Cirillo Grazia , Luongo Caterina , Mariani Michela , del Giudice Emanuele MIraglia , Perrone Laura

Background: Central precocious puberty (CPP) is often familial but its genetic cause is largely unknown. Very recently, the makorin RING finger protein 3 (MKRN3) gene has been found mutated for the first time in 5 families with familial precocious puberty. The inheritance pattern is particular being the MKRN3 a maternal imprinted gene. Moreover in a recent genome wide association study common intronic or intragenic variants harbouring this gene and other two imprinted genes, D...

hrp0086p1-p605 | Growth P1 | ESPE2016

A New Case of Intragenic Deletion in IGF1R with Very Mild Phenotype

Coppola Ruggero , Luongo Caterina , Nacca Raffaella , Sasso Marcella , Grandone Anna , del Giudice Emanuele Miraglia , Perrone Laura

Background: IGF1R mutations are characterized by IGF-1 resistance causing impaired fetal and postnatal growth. Several reports in children with heterozygous defects of IGF1R have demonstrated a variable phenotype, which can be associated to microcephaly, dismorphic features and mild developmental delay.Case presentation: We report of an 8-years-old boy, who came at our observation with short stature (−3.2 SDS) and mild microcephal...

hrp0082fclb5 | Late Breaking Abstracts | ESPE2014

CB2 Polymorphism Could Modulate the Relationship Between Childhood Obesity and Age at Menarche

Grandone Anna , Bellini Giulia , del Giudice emanuele Miraglia , Perrone Laura , Rossi Francesca

Background: There is an emerging evidence that the ovary may be an important site where genes such as LIN28b, whose polymorphisms has been strongly associated to age at menarche, could modulate the timing of puberty. Recent data suggest that the endocannabinoid system plays a role in folliculogenesis and ovulation, through cannabinoid receptor 2 (CB2) expressed in the ovary. On the other hand childhood obesity is associated with increased likelihood of early menarche,...

hrp0086fc4.5 | Pathophysiology of Obesity | ESPE2016

Novel Association between the Non-synonymous A803G Polymorphism of the N-acetyltransferase 2 Gene and Impaired Glucose Homeostasis in Obese Children and Adolescents

Marzuillo Pierluigi , Grandone Anna , Di Sessa Anna , Umano Giuseppina Rosaria , Cirillo Grazia , Perrone Laura , del Giudice Emanuele Miraglia

Background: The N-acetyltransferase 2 (NAT2) A803G polymorphism leading to substitution of lysine to arginine at residue 268 and codifying for a cytosolic enzyme catalysing acetyl-CoA-dependent N- and O-acetylation reactions, has been associated with decreased insulin sensitivity in a large adult population with the A allele associated with insulin resistance (IR)-related traits.Objective and hypotheses: We screened for this polymorphism, for th...

hrp0084p3-838 | Fat | ESPE2015

Bioavailable Vitamin D in Obese Children: The Role of Insulin Resistance

Grandone Anna , Del Giudice Emanuele Miraglia , Cirillo Grazia , Di Sessa Anna , Umano Giuseppina , Marzuillo Pierluigi , Capristo Carlo , Perrone Laura

Background: Studies examining vitamin D levels in association with childhood obesity usually do not concurrently measure levels of vitamin D-binding protein and do not calculate the unbound, bioavailable vitamin D, that is considered the fraction of 25-hydroxyvitamin D able to exert biological activity.Objective and hypotheses: To evaluate in a group of children for the most part obese i) the concentrations of both total 25-hydroxyvitamin D and of the bi...

hrp0092p1-111 | Pituitary, Neuroendocrinology and Puberty | ESPE2019

PROKR2 in Girls with Idiopathic Central Precocious Puberty

Grandone Anna , Luongo Caterina , Cassio Alessandra , Salerno Mariacarolina , Tornese Gianluca , Festa Adalgisa , del Giudice Emanuele Miraglia , Cirillo Grazia

Introduction: PROKR2 is a 384-amino acid G-protein-coupled receptors (GPCR) that regulates GnRH secretion in the hypothalamus. PROKR2 mutations have been described as cause of a certain percentage of of hypogonadotropic hypogonadism and Kallmann syndrome.In 2017 a heterozygous frameshift gain of function mutation of PROKR2 was identified in a 3.5-year-old girl with central precocious puberty (CPP).The aim of our st...