Endocrine Abstracts

Background: Levothyroxine (LT4-Rx) is one of the most prescribed drugs worldwide and the vast majority of patients receive long-term treatment. However, in a recent study of 291 subjects we found that 60% of this cohort were euthyroid two months after LT4-Rx discontinuation1.Aim of the study: A prospective clinical cohort follow-up study was carried out. In 688 subjects (82% females) aged 48.01±15.96 (range 17-84years) with 8.59±6.98...

Background: Levothyroxine (LT4Rx) is one of the most prescribed drugs worldwide the vast majority of patients receive long-term treatment. However, in a recent study of 291 subjects, it was found that 60% were euthyroid 2 months after LT4-Rx discontinuation1.Aim of the study: A prospective clinical cohort follow-up study was carried out. In 688 subjects (82% females) aged 48.01±15.96 (range 17-84years) with 8.59±6.98 years on LT4Rx witho...

Background: In the last decade, the combination of the widespread use of streptavidin-biotin technology and biotin–containing supplements (BCS) in the daily clinical practice, have led to numerous reports of erroneous hormone immunoassay results. However, there are no studies assessing the clinical and biochemical significance of that phenomenon, when treating patients with hypothyroidism. Therefore, a prospective study was designed to investigate the potential alteration...

Background: Levothyroxine (LT4) is one of the most prescribed drugs worldwide. Once started, about 90% of patients continue LT4 treatment long-term.Aim of the study: To evaluate the necessity of long-term thyroxine supplementation and to determine the prognostic factors that could identify which patients may discontinue LT4 treatment.Design and methods: LT4 replacement therapy was paused for at least six weeks in all patients conse...

Objective: The clinical phenotype of PCOS includes reproductive and hormonal aberrations. Visceral adiposity index (VAI) is an indicator which could connect hyperandrogenism and anovulation. The objective was to evaluate the relationship between VAI, menstrual disorders and hormonal, biochemical and ultrasound parameters in women with PCOS.Patients: 180 women with PCOS diagnosed with Rotterdam criteria.Measurements: We correlated V...

Background: Hormonal activity and insulin resistance (IR) in patients with incidentally discovered bilateral adrenal adenomas (BA) has not been evaluated until now. Therefore, we have investigated cortisol and aldosterone secretion and IR in 29 patients with BA, in 113 patients with unilateral adrenal adenomas (UA) and in 89 healthy subjects (C).Methods: All subjects underwent the following investigation: 1) Low dose dexamethasone suppression test (LDDST...

Background: Incidentally discovered adrenal adenomas (AA) are associated with increased prevalence of hypertension, obesity, and impaired glucose tolerance, all established risk factors for cardiovascular (CV) morbidity. However, most studies were performed in patients with AA and autonomous cortsisol and/or aldosterone secretion, whereas the presence of cardiovascular risk in patients with non-secreting AA has not been looked into detail.Methods: Cardio...

Aims: While hormonal assays are commonly used for thyroid function assessment, Doppler sonography provides valuable information on vascularization and blood flow. This study aimed to examine the potential associations between Doppler parameters and clinical characteristics of hypothyroid patients, such as the autoimmune nature of the disease and adequacy of LT4 replacement.Methods: A total of 338 patients with hypothyroidism, primarily caused by autoimmu...

Introduction: Adrenal incidentalomas (AI) with or without concomitant autonomous cortisol secretion can be associated with several metabolic alterations that may lead to increased cardiovascular risk. However, data regarding insulin resistance (IR) during long term follow-up of AI are scarce. The aim was to prospectively investigate the presence and evolution of IR in patients with AI between 2003 and 2014.Methods: Seventy three patients with AI for at l...

Introduction: Metabolic syndrome (MetS) is a cluster of interconnected factors that directly increase the risk of DM2 and CVD. Stevia rebaudiana (a low calorie natural sweetener) and its compounds are known for anti-hyperglycemic, anti-inflammatory, anti-oxidant, anti-hypertensive effects.Methods: Thirty-eight patients (age 47.3±10.3 years) (nmales=14, nfemales=24) with MetS (NCEP/ATPIII criteria) wer...