Endocrine Abstracts

Introduction: Polycystic ovary syndrome (PCOS) is a frequent cause of infertility. Its influence on the results of in vitro fertilization (IVF) is controversial, and generally not isolated from the effect of obesity. A relationship between the FSH receptor (FSHR) polymorphism Asn680Ser and the risk and phenotype of PCOS has been studied with conflicting results.Objectives: To analyze the influence of obesity and PCOS on the gonadal axis...

Introduction: Mitochondrial uncoupling proteins (UCPs) are mitochondrial transmembrane channels belonging to the anion carrier family. Six UCP homologues (UCP1-6) had been identified with a ubiquitous distribution throughout the body and many different physiological functions. UCPs are important regulators of several biological processes, including thermogenesis, oxidative phosphorylation, ROS production, as well as cellular metabolism. However, the knowledge concerning the mo...

Diabetic nephropathy (DN) and insulin resistance (IR) in kidney cells are considered the main cause of end-stage renal failure. Additionally, hyperglycemia and increased fatty (FA) acids are observed in patients with type 2 diabetes mellitus, where lipid accumulation has been correlated to IR. Nonetheless, the impact of IR in early disease stages is still unclear. Moreover, proximal renal tubular cells have high mitochondrial content where aerobic respiration is their primary ...

Introduction: Mitochondrial uncoupling proteins (UCPs) are transmembrane channels present in the inner mitochondrial membrane whose function is the transport of protons and small substrates between the intermembrane space and the mitochondrial matrix. UCPs are key regulators of cellular metabolism, including mitochondrial function, oxidative phosphorylation, and reactive oxygen species (ROS) production. UCPs’ dysfunction has been associated with the onset of metabolic dis...

Introduction: The anatomical and physiological changes induced by bariatric surgery (BS) can significantly impact the absorption and pharmacokinetics of orally administered medication. In particular, levothyroxine (LT4) dosage, given its dependence on patient’s weight and gastric pH for optimal absorption, is expected to change following BS. However, the literature is not unanimous and there is a void of longer-term studies. We aimed to compare LT4 dosage 4 years followin...

Background: Children who were born small for gestational age (SGA) and who do not have adequate catch-up growth until 4 years old have indication for treatment with recombinant human growth hormone (rhGH). The metabolic consequences of this treatment are relatively unknown. Objective: To evaluate the effect of rhGH treatment on insulin sensitivity and lipid profile.Materials and methods: A retrospective observational study of child...

Introduction: Differentiated thyroid cancer (DTC) is one of the most frequent forms of malignancy. Because of its favourable outcome and low mortality rates, identifying prognostic factors has been a challenge. Several risk stratification systems have been developed. Most of them include demographic and tumour specific features, as well as extrathyroidal extension. Our objective was to compare clinical characteristics between DTC patients with and without remission.<p clas...

Introduction: Primary acinic cell carcinoma (ACC) is an uncommon salivary gland (SG) tumor, making up 1–3% of all SG neoplasms, more frequent in women, at 40–60 year old. The cause is still unknown and the only well-established risk factor is ionizing radiation. ACC metastasize in 10–15% of the cases, 35% tends to recur and the rate of disease-associated death is about 16%. Surgical resection is the mainstay treatment, but radiation therapy may be used in some c...

Introduction: Pheochromocytomas and extra-adrenal paragangliomas are rare neuroendocrine tumors, with a peak incidence between the 3rd–5th decades of life and about 10% are malignant. Although they have the same radiographic and histologic characteristics of their benign counterpart, malignant pheochromocytomas are diagnosed by the presence of local invasion or metastatic tumor in the non-chromaffin tissues, and offer a poorer prognosis. Treatment is typically extirpative...

Insulin autoimmune syndrome (IAS) is a very rare cause of hypoglycaemia in western countries. One proposed mechanism is anti-insulin antibody capture of prandial insulin followed by the dissociation of insulin from anti-insulin antibody. The first objective was to study the relationship between glucose, insulin and C-peptide during a prolonged glucose load in two patients with active IAS. The second was to study the variation of these parameters between the active and the reco...