Endocrine Abstracts

Purpose : To assess the utility of (18F)fluoroethyl-L-tyrosine PET co-registered with magnetic resonance imaging (FET-PET/MRICR) in patients with difficult-to-localize prolactinoma to inform clinical decision making and treatment planning.Methods: Retrospective cohort study of 17 consecutive patients with difficult-to-localize prolactinoma undergoing FET-PET/MRICR between October 2020 and Amgust 2022 for either (1) additional inform...

Background: Patients with non-functioning pituitary macroadenoma (NFMA) currently have no established medical treatment options. Somatostatin analogues may decrease tumour size, but randomised controlled trials are lacking. In vivo somatostatin receptor assessment with 68Ga-DOTATATE PET could help in selecting patients for treatment. We aimed to determine the effect of the somatostatin analogue lanreotide on tumour size in patients with a 68Ga-DOTATATE PE...

Background: Hypopituitarism is common in patients with pituitary tumors. Still, the influence of pituitary tumor surgery on gonadal function and reproductive health remains underexplored.Objective: a) To assess gonadal function and its impact on quality of life (QoL) in patients with non-functioning pituitary adenomas (NFPA) before and after transsphenoidal surgery (TSS), b) to identify factors that predict recovery of gonadal function following TSS, and...

Background: Acromegaly is a rare disease typically caused by a benign growth hormone (GH)-secreting pituitary adenoma that stimulates over-production of insulin-like growth factor-1 (IGF1) from the liver. Treatment with somatostatin analog (SSA) monotherapy does not provide optimal control of circulating IGF-1 levels in the majority of patients. AZP-3813, a 16-amino acid, bicyclic GH receptor antagonist (GHRA) binds to the GH receptor and prevents endogenous GH from stimulatin...

Introduction: Disruption of the hypothalamic/pituitary axes may lead to hypopituitarism. Anterior pituitary deficiencies (APD) and arginine-vasopressin deficiency (AVP-D) are well established and are treated with hormone replacement. Over the last decade, preliminary studies support the presence of an oxytocin (OXT)-deficient state that might be clinically relevant in patients with hypopituitarism and hypothalamic damage (HHD). Therefore, identifying a provocative test to diag...

Background: Metastases to the sellar region are extremely rare tumours in surgical series. The reported incidence has recently increased with advances in neuroimaging. Survival of patients with metastatic cancer has improved due to progress in oncologic therapies and diagnostics. Patients with sellar metastases (SM) follow a variable disease course that is not well defined.Objective: The objective was to evaluate the clinical characteristics, surgical ap...

Overview: Despite marked insulin resistance, patients with active acromegaly have low hepatocellular lipid content (IHL) and an unfavourable hepatic lipid composition (UI). As previously shown, inadequate mitochondrial activity in the liver might counteract lipid accumulation in the liver. The purpose of this study was to understand changes in hepatic metabolism, and lipidomic profile with therapy of acromegaly.Methods: We prospectively included thirteen...

In our country, as in others, there is a lack of data on the success rate of transsphenoidal surgery for producing pituitary adenomas. We evaluated the results reported in TESSPAIN, a retrospective multicenter nationwide project that includes all the TSS performed in the participating centers in the period between 2018 and 2022, both included. Surgical treatment success is defined according to the published criteria for each disease: normal IGF-1 and GH after 75 g of oral gluc...