Searchable abstracts of presentations at key conferences in endocrinology

ea0049gp147 | Male Reproduction and Endocrine Disruptors | ECE2017

Effects of physical exercise or metformin on testosterone deficiency and erectile dysfunction associated to metabolic syndrome

Vignozzi Linda , Filippi Sandra , Comeglio Paolo , Cellai Ilaria , Corcetto Francesca , Corno Chiara , Maggi Mario

Metabolic Syndrome (MetS) is a cluster of clinical conditions, associated to an increased cardiovascular and metabolic risk, to hypogonadism and erectile dysfunction (ED). Lifestyle modification (including physical exercise, PhyEx) and metformin (MET) are well-known treatments for the condition. We established an animal model of MetS that recapitulates the human phenotype, including andrologic derangements.The aim of this study was to investigate in expe...

ea0049ep377 | Cardiovascular Endocrinology and Lipid Metabolism | ECE2017

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

Comeglio Paolo , Cellai Ilaria , Filippi Sandra , Morelli Annamaria , Sarchielli Erica , Adorini Luciano , Maggi Mario , Vignozzi Linda

The nuclear Farnesoid X receptor (FXR) and the G protein-coupled bile acid receptor 1 (TGR5) are bile acids receptors that play a key role in energy metabolism. In an animal model of non-genomic metabolic syndrome (MetS), obtained with a high fat diet (HFD), treatment with the dual FXR/TGR5 agonist INT767 reduced visceral adipose tissue (VAT) accumulation, insulin resistance, hypercholesterolemia and nonalcoholic steatohepatitis (NASH). In liver, INT767 reduced the high macrop...

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...

ea0035p697 | Male reproduction | ECE2014

Metformin in vitro and in vivo increases adenosine signalling in rabbit corpora cavernosa

Vignozzi Linda , Filippi Sandra , Comeglio Paolo , Cellai Ilaria , Rastrelli Giulia , Morelli Annamaria , Mannucci Edoardo , Maggi Mario

Introduction: In subjects with erectile dysfunction (ED) responding poorly to sildenafil, metformin was reported to improve erections.Aims: To investigate metformin’s mechanism of action on erectile function, particularly focusing on adenosine (ADO), and NO signalling in an animal model of high fat diet (HFD)-induced metabolic syndrome (MetS).Methods: In vitro contractility studies of penile strips. Penile expression ...

ea0063p599 | Diabetes, Obesity and Metabolism 2 | ECE2019

Testosterone restores metabolic syndrome-induced impairement in physical activity by ameliorating skeletal muscle fiber metabolism

Morelli Annamaria , Sarchielli Erica , Comeglio Paolo , Filippi Sandra , Cellai Ilaria , Guarnieri Giulia , Rastrelli Giulia , Vignozzi Linda , Maggi Mario

Background: Metabolic syndrome (MetS) is a clustering of metabolic and cardiovascular risk factors, with insulin resistance being one of the main components. In male, MetS is also associated to hypogonadotropic hypogonadism. Lifestyle modifications (e.g. physical activity) could prevent or considerably reduce MetS progression, however the ability to perform physical activity is often impaired in MetS subjects.Aim: Considering the known trophic role of T ...

ea0063p1120 | Reproductive Endocrinology 2 | ECE2019

Immunomodulatory effects of dihydrotestosterone (DHT) in rat vaginal smooth muscle cells

Maseroli Elisa , Cellai Ilaria , Corno Chiara , Filippi Sandra , Comeglio Paolo , Sarchielli Erica , Rastrelli Giulia , Morelli Annamaria , Maggi Mario , Vignozzi Linda

Pathologies of the female reproductive system, characterized by chronic pain, are frequent and it has been hypothesized that inflammation may play an essential role in their pathogenesis. It is known that androgens, including dihydrotestosterone (DHT), have shown immunomodulatory effects in experimental models of chronic inflammation. The aim of this study was to evaluate the immunomodulatory effects of DHT in smooth muscle cells (rSMCs) isolated from vagina of intact Sprague-...

ea0063oc14.1 | Sex Hormones | ECE2019

Testosterone replacement therapy is able to reduce prostate inflammation in men with BPH, metabolic syndrome and hypogonadism: preliminary results from a randomized placebo-controlled clinical trial

Rastrelli Giulia , Cipriani Sarah , Lotti Francesco , Cellai Ilaria , Comeglio Paolo , Boddi Valentina , Della Camera Pierandrea , Gacci Mauro , Serni Sergio , Maggi Mario , Vignozzi Linda

Objectives: BPH is characterised by prostate inflammation, which frequently occurs in men with metabolic syndrome (MetS). MetS is often associated with low testosterone (T). Recent evidence shows that low, rather than high, T is associated with BPH/lower urinary tract symptoms (LUTS). To evaluate if T replacement therapy (TRT) for 6 months in BPH men with MetS and low T, is able to improve LUTS and prostate inflammation.Methods: 120 men in waiting list f...

ea0063p598 | Diabetes, Obesity and Metabolism 2 | ECE2019

Physical activity counteracts metabolic syndrome-induced hypogonadotropic hypogonadism and erectile dysfunction in the rabbit

Morelli Annamaria , Filippi Sandra , Comeglio Paolo , Sarchielli Erica , Cellai Ilaria , Danza Giovanna , Rastrelli Giulia , Corno Chiara , Zizza Michela , Guarnieri Giulia , Vignozzi Linda , Maggi Mario

Metabolic syndrome (MetS) clusters cardiovascular and metabolic risk factors, along with hypogonadism (HG) and erectile dysfunction (ED). Lifestyle modifications, including physical exercise (PhyEx), are well-known treatments for this condition. We previously established a non-genomic, high-fat diet (HFD)-induced rabbit model of MetS that recapitulates the human phenotype, including HG and ED. We now report studies on the effect of PhyEx on hypothalamus-pituitary-testis (HPT) ...

ea0063p604 | Diabetes, Obesity and Metabolism 2 | ECE2019

The effects of testosterone treatment on fat tissue dysfunction and nonalcoholic fatty liver disease in obese men undergoing bariatric surgery

Maseroli Elisa , Corno Chiara , Comeglio Paolo , Cellai Ilaria , Filippi Sandra , Mello Tommaso , Galli Andrea , Facchiano Enrico , Beltrame Benedetta , Lucchese Marcello , Rastrelli Giulia , Maggi Mario , Vignozzi Linda

Objective: Substitution treatment of hypogonadism in clinical and experimental models has shown beneficial effects on insulin sensitivity and accumulation of visceral and liver fat. Aim of the study was to analyze the effects of testosterone replacement therapy on benign prostatic hyperplasia/lower urinary tract symptoms (BPH/LUTS) clinical parameters, adipose tissue dysfunction and nonalcoholic fatty liver disease (NAFLD) in obese patients candidates for bariatric surgery.</p...

ea0063p1123 | Reproductive Endocrinology 2 | ECE2019

Study of the anti-inflammatory effects of dihydrotestosterone in human vaginal smooth muscle cells

Maseroli Elisa , Cellai Ilaria , Corno Chiara , Rastrelli Giulia , Filippi Sandra , Comeglio Paolo , Amoriello Roberta , Ballerini Clara , Sarchielli Erica , Morelli Annamaria , Maggi Mario , Vignozzi Linda

Inflammation is hypothesized to play an important role in several diseases associated to the female genital tract and dihydrotestosterone (DHT) has shown immunomodulatory protective effects in experimental models of chronic inflammation. In the present study we aimed to evaluate the potential anti-inflammatory effects of DHT in a model of smooth muscle cells (hSMCs) isolated from human vagina biopsies and their potential role as APCs (Antigen Presenting Cells), crucial for the...