Searchable abstracts of presentations at key conferences in endocrinology

ea0063p1135 | Reproductive Endocrinology 2 | ECE2019

Assessment of the feasibility and safety of a novel transvaginal ovarian drilling method in a bovine model: ovarian rebalancing

Bongrani Alice , Dupont Mickael , Rame Christelle , Amer Saad , Briant Eric , Dupont Joelle

Polycystic Ovary Syndrome (PCOS), the most common endocrinopathy affecting reproductive-aged women, is characterized by oligo-/anovulation, hyperandrogenism and polycystic ovaries. In PCOS women with anovulatory infertility, the accepted first-line treatment is clomiphene citrate (CC). For patients resistant to CC, laparoscopic ovarian drilling (LOD) is recommended as a second-line therapy. Whilst very effective, LOD is an invasive technique requiring general anaesthesia and a...

ea0063p1139 | Reproductive Endocrinology 2 | ECE2019

Androgen steroids profile in follicular fluid of Polycystic Ovary Syndrome (PCOS) women

Bongrani Alice , Plotton Ingrid , Rame Christelle , Guerif Fabrice , Fromenty Pascal , Dupont Joelle

Polycystic Ovary Syndrome (PCOS), the most common endocrinopathy of reproductive-age women, was initially defined by the association of anovulation and clinical and/or biochemical hyperandrogenism (1990 NIH). Since Rotterdam Consensus Conference in 2003, its diagnosis requires the presence of at least two of the following features: oligo-/anovulation, hyperandrogenism and polycystic ovaries on ultrasound. However, since its introduction, this definition was strongly challenged...

ea0063p1141 | Reproductive Endocrinology 2 | ECE2019

Ovarian expression of adipokines in polycystic ovary syndrome: characterisation of the ‘ECHO’ condition

Bongrani Alice , Mellouk Namya , Rame Christelle , Cornuau Marion , Guerif Fabrice , Froment Pascal , Dupont Joelle

Introduction: Polycystic Ovary Syndrome (PCOS) is a very common endocrinopathy affecting 6 to 13% of women of reproductive age and one of the leading causes of female poor fertility. It was initially defined by the association of anovulation and clinical and/or biochemical hyperandrogenism (1990 National Institutes of Health-sponsored conference). Since Rotterdam ESHRE/ASRM Consensus Conference in 2003, polycystic ovaries morphology on ultrasound (ECHO condition) was added as ...

ea0063p1143 | Reproductive Endocrinology 2 | ECE2019

AdipoRon, an adiponectin receptor agonist, reduces the proliferation and secretion of steroids by human granulosa cells

Grandhaye Jeremy , Plotton Ingrid , Hmadeh Sandy , Bongrani Alice , LeGuevel Remy , Rame Christelle , Dupont Joelle , Froment Pascal

Diet, and especially metabolic dysregulation such as obesity can influence the ovarian activity. Adipose tissue plays an important role since it is known to be one of the most important endocrine organs producing hundreds of cytokines, such as adiponectin. Our team has observed that adiponectin modulated steroid secretion by the ovarian granulosa cells and its concentration in the follicular fluid was influenced by the metabolic status. Recently, a small adiponectin mimetic sy...

ea0081p262 | Adrenal and Cardiovascular Endocrinology | ECE2022

Key role for vasopressin V2 receptors in hypertension development in Spontaneously Hypertensive Rats (SHRs)

Verzicchio Ignazio , Bongrani Alice , Tedeschi Stefano , Graiani Gallia , Cavazzini Stefania , Zappa Jessica , Palladini Barbara , Cremaschi Elena , Calvi Anna , Coghi Pietro , Vicini Vanni , Cannone Valentina , Volpi Riccardo , Borghetti Alberico , Cabassi Aderville

Water and electrolyte balance regulation plays a key role in essential hypertension pathogenesis. Indeed, alterations in kidney ability to excrete sodium and water in relation to intake have been proposed as a basic process of hypertension development. Vasopressin (AVP) acts through V2 receptors on the basolateral membrane of collecting duct principal cells to trigger the phosphorylation of Aquaporin 2 (AQP2) which moves from the cytoplasm to the apical membrane, making the ce...

ea0090p53 | Diabetes, Obesity, Metabolism and Nutrition | ECE2023

The concentration of Polycyclic Aromatic Hydrocarbons (PAHs) in human serum and adipose tissues and In Vitro stimulatory effect of naphthalene in adipogenesis in 3T3-L1 cells

Mlyczyńska Ewa , Bongrani Alice , Rame Christelle , Węgiel Małgorzata , Maślanka Anna , Major Piotr , Zarzycki Piotr , Ducluzeau Pierre-Henri , De Luca Arnaud , Bourbao-Tournois Celine , Froment Pascal , Rak Agnieszka , Dupont Joelle

Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants derived from the incomplete combustion of organic materials. In urban and industrial areas, level of pollution with these compounds is high, which leads to numerous negative health effects. Some literature data indicate the involvement of PAHs in the development of obesity, however, there is no data showing the distribution patterns of PAHs in human adipose tissue (AT) and their impact on the process o...