hrp0086fc4.3 | Pathophysiology of Obesity | ESPE2016

Expression of Type 1 Insulin-like Growth Factor Receptor (IGF-1R) in Liver of Obese Children with Non-alcoholic Fatty Liver Disease (NAFLD)

Pampanini Valentina , De Stefanis Cristiano , Alisi Anna , Inzaghi Elena , Nobili Valerio , Cianfarani Stefano

Background: Type 1 insulin-like growth factor receptor (IGF-1R) is the product of a single-copy gene located on chromosome 15 and is ubiquitously expressed in humans. Increased hepatic IGF-1R gene expression is found in hepatocellular carcinoma and in chronic hepatitis C, making parenchymal and non-parenchymal cells more susceptible to the mitogenic effects of IGF-1.Objective and hypotheses: As we have previously demonstrated that IGF-1 and IGF-2 circula...

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...

hrp0082p2-d2-383 | Fat Metabolism & Obesity (1) | ESPE2014

Fetuin A Serum Levels in Children with Nonalcoholic Fatty Liver Disease

Pampanini Valentina , Inzaghi Elena , Nobili Valerio , Germani Daniela , Puglianiello Antonella , Cianfarani Stefano

Background: Fetuin A is a hepatokine known as a natural inhibitor of the insulin receptor tyrosine kinase and is associated with insulin resistance and nonalcoholic fatty liver disease (NAFLD). Studies on adults provided conflicting results regarding the link between fetuin A and the severity of liver damage in NAFLD. Data on children are limited.Objective: To investigate the relationship between fetuin A, metabolic parameters, and NAFLD in obese childre...

hrp0082p2-d2-376 | Fat Metabolism & Obesity (1) | ESPE2014

Non-Alcoholic Fatty Liver Disease in Children/Adolescent Affected by Prader–WIlli Syndrome

Fintini Danilo , Inzaghi Elena , Bocchini Sarah , Grugni Graziano , Colajacomo Mauro , Brufani Claudia , Cappa Marco , Nobili Valerio , Cianfarani Stefano , Crino Antonino

Background: Prader–Willi syndrome (PWS) has a relative hypoinsulinemia and a lower insulin resistance than non-PWS subjects. Mostly on the basis of such higher insulin sensitivity, PWS subjects have been hypothesized to be at lower risk of non-alcoholic fatty liver disease (NAFLD).Objective and hypotheses: In this cross-sectional study, we analyzed the presence and the severity of NAFLD in a group of PWS children compared to matched pairs.<p cla...

hrp0084p2-328 | Fat | ESPE2015

miR-122 and Non-Alcoholic Fatty Liver Disease in Prepubertal Obese Children

Inzaghi Elena , Brandt Stephanie , Roos Julian , Cianfarani Stefano , Nobili Valerio , Colajacomo Mauro , Battelino Tadej , Primoz Kotnik , Wabitsch Martin , Fischer-Posovszky Pamela

Background: The incidence of non-alcoholic fatty liver disease (NAFLD) is dramatically increasing among children worldwide. The gold standard for diagnosis is the liver biopsy. Reliable serum markers are lacking. Recently, circulating miRNAs have been studied as biomarkers of disease progression. Specifically, miR-122 was proposed as predictive marker for liver disease in adults, while no data are available for children.Objective and hypotheses: To inves...