hrp0082p1-d1-112 | Fat Metabolism & Obesity | ESPE2014

Mir-146a and -155 are Involved in FOXO1 Regulation and Non Alcoholic Fatty Liver Disease in Childhood Obesity

Montanini Luisa , Lazzeroni Pietro , Sartori Chiara , Nobili Valerio , Crafa Pellegrino , Bernasconi Sergio , Street Maria E

Background: Non alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in childhood, in obese subjects and associated with insulin resistance.FOXO1 is a key regulator in insulin signalling and in intracellular adipogenesis, and is implicated in liver steatosis. We have previously identified that a group of miRNAs are involved in its epigenetic regulation.Objective and hypotheses: We aimed to assess in liver tissue and in serum whe...

hrp0092fc3.2 | Multi-system Endocrine Disorders | ESPE2019

CFTR Loss-of-Function has Effects on microRNAs (miRNAs) that Regulate Genes Involved in Growth, Glucose Metabolism and in Fertility in in vitro Models of Cystic Fibrosis

Cirillo Francesca , Catellani Cecilia , Graziano Sara , Montanini Luisa , Smerieri Arianna , Lazzeroni Pietro , Sartori Chiara , Marmiroli Nelson , Amarri Sergio , Gullì Mariolina , Elisabeth Street Maria

Cystic Fibrosis (CF), is due to CF-transmembrane-conductance-regulator (CFTR) loss-of-function. Significant heterogeneity exists between patients, suggesting potential epigenetic regulation, and comorbidities develop with time. MiRNAs are non-coding RNAs that act as epigenetic regulators. Although many studies have focused on the role for miRNAs in regulating CFTR gene expression, little attention has been given to how CFTR influences their expression and how this affects grow...

hrp0092rfc14.3 | Adrenals and HP Axis | ESPE2019

MicroRNAs Change and Target Key Regulatory Genes Involved in Longitudinal Growth in Patients with Idiopathic Isolated Growth Hormone Deficiency (IGHD) on Growth Hormone (GH) Treatment

Cirillo Francesca , Catellani Cecilia , Lazzeroni Pietro , Sartori Chiara , Ravegnini Gloria , Bonvicini Federico , Predieri Barbara , Amarri Sergio , Iughetti Lorenzo , Angelini Sabrina , Elisabeth Street Maria

The growth response in patients undergoing GH treatment is variable depending both on the patient's basal conditions and on personal innate sensitivity to therapy. MicroRNAs (miRNAs) are epigenetic regulators of gene expression, and are recognised as important regulators of biological and metabolic processes. It is unknown at present whether miRNAs could be early biomarkers of response to GH treatment in a perspective of individualised medicine, and whether they could disc...

hrp0089rfc8.2 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2018

High Mobility Group Box 1 (HMGB1) is Increased in Adolescents with Polycystic Ovarian Syndrome (PCOS) and Decreases after Treatment with Myo-Inositol in Combination with α-Lipoic Acid (MYO+ALA)

Cirillo Francesca , Catellani Cecilia , Tridenti Gabriele , Vezzani Cristina , Lazzeroni Pietro , Sartori Chiara , Fulghesu Anna Maria , Losi Simona , Coradazzi Letizia , Amarri Sergio , Street Maria Elisabeth

PCOS treatment in adolescence should aim at improving ovarian function, based on the pathophysiology of this condition. We previously described in cystic fibrosis and then in the PCOS an increase in HMGB1, secondary to reduced cystic fibrosis transmembrane conductance regulator (CFTR) expression in the ovary, associated with insulin resistance and inflammation that both characterize PCOS. Inositols and ALA derivatives are considered a good therapeutic option for their possible...

hrp0089p1-p221 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P1 | ESPE2018

High Mobility Group Box 1 (HMGB1) and Insulin-Like Growth Factor Binding Protein-2 (IGFBP-2) are Increased, Insulin Decreased and IL-6 Unchanged in Follicular Fluid (FF) from Polycystic Ovarian Syndrome (PCOS)

Cirillo Francesca , Catellani Cecilia , Lazzeroni Pietro , Sartori Chiara , Morini Daria , Nicoli Alessia , Amarri Sergio , La Sala Giovanni Battista , Street Maria Elisabeth

HMGB1 is a small-protein which reflects both inflammation and insulin-sensitivity. Inflammation and insulin-resistance are features of PCOS. IL-6 is important for ovarian function and can contribute to insulin-resistance. IGFBP-2 behaves like an acute-phase protein and is increased in chronic inflammation. It is also involved in the glucose-metabolism regulation and IGFBP-2 overexpression plays a protective role against insulin-resistance. Insulin functions as a co-gonadotropi...

hrp0084p1-73 | Fat | ESPE2015

Circulating miR146a and 486-5p are Altered in Obese Children with and Without Non-Alcoholic Fatty Liver Disease (NAFLD) and Correlate with Abdominal Fat and BMI

Montanini Luisa , Patianna Viviana D , Sartori Chiara , Predieri Barbara , Bruzzi Patrizia , Lazzeroni Pietro , Merli Silvia , Bergamaschi Paolo , Bernasconi Sergio , Iughetti Lorenzo , Street Maria Elisabeth

Background: MicroRNAs (miRNA) are small non coding RNA molecules, key regulators of metabolic pathways. Obesity is characterised by many metabolic changes. NAFLD is seen as a complication of obesity. FOXO-1, key regulator in insulin signalling, has been shown to be implicated in NAFLD. We previously identified miRNAs regulators of the FOXO-1 gene.Objective and hypotheses: To assess in serum whether the regulation of miR-146a and miR-486-5p, FOXO1 gene re...