Searchable abstracts of presentations at key conferences in endocrinology

ea0035oc9.2 | Reproduction | ECE2014

Tadalafil ameliorates metabolic syndrome-induced alterations in visceral adipose tissue and liver: an experimental study in the rabbit

Vignozzi Linda , Filippi Sandra , Cellai Ilaria , Comeglio Paolo , Maneschi Elena , Galli Andrea , Maggi Mario

Visceral adipose tissue (VAT) dysfunction is closely associated with the rising incidence of cardiovascular diseases (CVD) and type 2 diabetes mellitus. Two distinct types of adipose tissue, white (WAT) and brown (BAT), are present in mammals. Development of ‘brown-like’ adipocytes within white adipose tissue has potential antiobesity and insulin-sensitizing effects. Genetic manipulation of cGMP formation suggests a new role for this pathway in preadipocytes commitme...

ea0041gp56 | Cardiovascular endocrinology | ECE2016

The dual FXR/TGR5 agonist INT-767 reduces visceral fat mass, promoting preadipocyte brown differentiation, mitochondrial function and insulin sensitivity in a rabbit model of high fat diet-induced metabolic syndrome

Vignozzi Linda , Cellai Ilaria , Filippi Sandra , Comeglio Paolo , Mello Tommaso , Bani Daniele , Guasti Daniele , Sarchielli Erica , Morelli Annamaria , Maneschi Elena , Vannelli Gabriella Barbara , Adorini Luciano , Maggi Mario

Expanding brown adipose tissue is a potential therapeutic strategy to counteract insulin resistance and metabolic syndrome (MetS). Farnesoid X receptor (FXR) and Takeda G protein-coupled receptor 5 (TGR5) activation enhances insulin sensitivity, suggesting the capacity of FXR/TGR5 agonists to promote brown differentiation in adipose tissue. Treatment with increasing doses of the dual FXR/TGR5 agonist INT-767 (3, 10, 30 mg/Kg bw, daily for 5 days a week, by oral gavage, for 12 ...

ea0041ep201 | Cardiovascular Endocrinology and Lipid Metabolism | ECE2016

The dual FXR/TGR5 agonist INT-767 counteracts nonalcoholic steatohepatitis in a rabbit model of high fat diet-induced metabolic syndrome

Vignozzi Linda , Cellai Ilaria , Filippi Sandra , Comeglio Paolo , Sarchielli Erica , Morelli Annamaria , Maneschi Elena , Vannelli Gabriella Barbara , Adorini Luciano , Maggi Mario

Farnesoid X receptor (FXR) and Takeda G protein-coupled receptor 5 (TGR5) are interesting pharmacological targets for the treatment of liver and metabolic diseases. FXR-deficient mice on a high-fat diet (HFD) exhibit massive hepatic steatosis, necro-inflammation and fibrogenesis. Moreover, pharmacological activation of TGR5 in mice promotes protective mechanisms in biliary epithelial cells and inhibits hepatic and systemic inflammation. Thus, we hypothesized that a FXR/TGR5 du...

ea0032p680 | Neuroendocrinology | ECE2013

High glucose induces hypogonadotropic hypogonadism by interfering with GPR54 signaling in the preoptic area of the hypothalamus

Morelli Annamaria , Vignozzi Linda , Erica Sarchielli , Comeglio Paolo , Filippi Sandra , Rastrelli Giulia , Maneschi Elena , Cellai Ilaria , Barbara Vannelli Gabriella , Maggi Mario

The metabolic syndrome (MetS) is a clustering of metabolic and cardiovascular risk factors, having in insulin resistance the key element. In males, MetS is also associated to hypogonadism. We recently found that high fat diet (HFD)-induced MetS rabbits also developed hypogonadotropic hypogonadism, showing a reduced immunopositivity for gonadotropin relasing hormone (GnRH) in the hypothalamus. In this study, we investigated the pathogenetic link between Mets components and the ...

ea0032p738 | Obesity | ECE2013

The FXR agonist obeticholic acid normalizes lipid droplet and triglyceride handling in visceral adipose tissue preadipocytes from a non-genomic rabbit model of metabolic syndrome

Maneschi Elena , Vignozzi Linda , Morelli Annamaria , Mello Tommaso , Filippi Sandra , Cellai Ilaria , Comeglio Paolo , Sarchielli Erica , Calcagno Alessandra , Vettor Roberto , Vannelli Gabriella Barbara , Adorini Luciano , Maggi Mario

Liver and visceral ectopic fatty tissue disposition is a major metabolic derangement leading to type 2 diabetes, hypertension, dyslipidaemia, recapitulated in the metabolic syndrome (MetS). We have demonstrated that the selective FXR agonist obeticholic acid (OCA, INT-747) ameliorates the metabolic profile and reduces visceral adipose tissue (VAT) in a high-fat diet (HFD)-induced rabbit model of MetS. We now report the effects of OCA treatment in HFD (0.5% cholesterol and 4% p...

ea0032p655 | Male reproduction | ECE2013

Fat boosts, while androgen receptor activation counteracts, BPH-associated prostate inflammation

Vignozzi Linda , Gacci Mauro , Cellai Ilaria , Santi Raffaella , Corona Giovanni , Morelli Annamaria , Rastrelli Giulia , Comeglio Paolo , Sebastianelli Arcangelo , Maneschi Elena , Nesi Gabriella , De Nunzio Cosimo , Tubaro Andrea , Mannucci Edoardo , Carini Marco , Maggi Mario

Background: Metabolic syndrome (MetS) and benign prostate hyperplasia (BPH) are often comorbid. Chronic inflammation, a determinant pathogenic factor for BPH, is a putative link between the two conditions.Methods: In a multi-center cohort of BPH patients (n=244) who underwent prostatectomy, we evaluated whether MetS is associated with prostatic inflammation in BPH specimens. In addition, we investigated the in vitro inflammatory effects...