Searchable abstracts of presentations at key conferences in endocrinology

ea0022p51 | Adrenal | ECE2010

In vitro effect of serotonin (5-HT) on cortisol secretion in primary pigmented nodular adrenal disease

Louiset Estelle , Duparc Celine , Perraudin Veronique , Renouf Sylvie , Libe Rossella , Stratakis Constantine A , Bertherat Jerome , Lefebvre Herve

Illegitimate membrane receptors are known to play a role in cortisol secretion in adrenal adenomas and ACTH-independent macronodular adrenal hyperplasia (AIMAH) causing CushingÂ’s syndrome. Conversely, illegitimate receptors have never been described in primary pigmented nodular adrenal disease (PPNAD). In the normal adrenal gland, serotonin (5-HT) has been shown to stimulate cortisol secretion through activation of 5-HT receptor type 4 (5-HT4) whereas, in some AIMAH tissu...

ea0090s7.3 | Aberrant/illicit expression of receptors in adrenal lesions | ECE2023

LHCG Receptor in pheochromocytoma

Lopez Antoine-Guy , Duparc Celine , Renouf Sylvie , Sabourin Jean-Christophe , Buffet Alexandre , Gimenez-Roqueplo Anne-Paule , Dubessy Christophe , Louiset Estelle , Lefebvre Herve

Pheochromocytomas/paragangliomas (PPGL) are catecholamine-producing neuroendocrine tumors that account for less than 1% of all hypertension cases. Despite their rarity, these tumors must be early detected and treated to prevent potentially life-threatening adrenergic crises. Unfortunately, PPGL are frequently unrecognized during pregnancy, leading to a high risk of either maternal or fetal complications. In return, pregnancy can trigger catecholamine secretory discharges in pa...

ea0081oc14.1 | Oral Communications 14: Late Breaking | ECE2022

Expression of luteinizing hormone-chorionic gonadotrophin receptor in pheochromocytomas

Lopez Antoine-Guy , Duparc Celine , Renouf Sylvie , Machevin Elise , Guillou Vincent Le , Sabourin Jean-Christophe , Defortescu Guillaume , Buffet Alexandre , Gimenez-Roqueplo Anne-Paule , Dubessy Christophe , Louiset Estelle , Herve Lefebvre

Pheochromocytomas and paragangliomas (PPGL) are catecholamine-producing neuroendocrine tumors that display the highest heritability rate among all human tumors. Genomic analyses revealed the existence of 2 main clusters of PPGL, i.e. cluster 1 containing SDHx- and VHL-mutated tumors which do not produce epinephrine, and cluster 2 including epinephrine-secreting PPGL related to RET, NF1, TMEM127 and MAX mutations. Early diagnosis and treatment of PPGL is crucial to prevent adre...