Endocrine Abstracts

In vitro 3D cell culture systems seem to appropriately reproduce the tumor cell microenvironment, including nutrients-oxygen conditions and cell-cell interactions. These models may better mimic in vivo tumor conditions and more accurately reproduce drug treatments effects. Since most in vitro studies in neuroendocrine tumors (NETs) are performed in 2D culture systems (monolayer), we aimed to compare the monolayer system with a 3D spheroid cell cultur...

It is known that the synthesis and release of pituitary GH is controlled by complex neuroendocrine mechanisms that involve several neuropeptides, such as GHRH, SST, PACAP, TRH, GnRH, Ghrelin, among other regulators. Previous reports indicate that, during vertebrate evolution, the potency and efficacy of these secretagogues may vary and play differential effects upon GH regulation. In this work we aimed to study, in vitro, the capacity of these peptides to control the ...

Background: Cross-sex hormone therapy (CHT) is known to lead to alterations in cardiovascular risk factor(CVRF).Objective: To assess changes in lipid profile and other CVRF in transsexual subjects receiving CHT.Materials and methods: Retrospective longitudinal study. We evaluated individuals with gender identity disorder following CHT, assisted in the Gender Identity Unit from 2015 to 2017. Primary endpoint was lipid profile change...

Background: The main limitation of fine-needle aspiration (FNA) is represented by indeterminate category (Bethesda III and IV) in which the risk of malignancy is between 5-30%. Given this result, surgical treatment is necessary in many cases. The aim of our study is to assess whether the ultrasound patterns proposed by the ATA, help us to stratify the risk of malignancy in nodules with Bethesda IV cytology result.Methods: From January 2011 to June 2017 w...

Objetive: The aim of our study is to asses the validity of ultrasound patterns proposed by the ATA and malignancy risk in the cytological diagnosis classified by the Bethesda System.Methods: Prospective study including all thyroid nodules (with no previous cytological results), assessed in our center from July/2016 to June/2017. We classified nodules in ATA sonographic risk patterns and follow-up its fine needle aspiration (FNA) recommendations. The stat...

Sex hormone-binding globulin levels are low in adult subjects with obesity when compared to normal-weight individuals. Obesity is associated with higher tumor necrosis factor alpha (TNFα) plasma levels and lower adiponectin levels. Moreover, we have recently elucidated the molecular mechanisms by which TNFα and adiponectin regulate hepatic SHBG production. The main objective of this study was to assess if the adult associations between TNFα, Adiponectin and SHBG...

IntroductionDyslipidemia is a major cardiovascular risk factor, being its detection and control essential due to risk of serious complications. Numerous trials have demonstrated its relationship with T2D, but it has not been so well studied in T1D.ObjectiveTo obtain information about relationship between dyslipidemia and T1D and analyze its prevalence and control in a sample of patients.<p class="abstext"...

Sex hormone-binding globulin (SHBG) is a circulating plasma glycoprotein produced by the liver, which in the blood binds estrogens and androgens with high affinity and regulates its bioavailability. Low plasma SHBG levels are associated with obesity, metabolic syndrome and non-alcoholic fatty liver disease. Importantly, epidemiological studies have demonstrated that low plasma SHBG levels is a risk factor for developing type 2 diabetes and cardiovascular disease. In the last y...

Background: Despite a high relapse rate, antithyroid drugs (ATDs) remain the first-line therapy of Graves’ disease (GD). Long-term follow-up studies of GD in Spain are scarce. Our aims were to identify clinical differences between patients who relapsed vs those who attained remission and to describe the relapse rate of GD after ATD withdrawal.Methods: We analyzed patients with the first episode of GD who were treated with ATDs during 2010 - 2020, in...

Objective: The definitive treatment of primary hyperparathyroidism (PPH) is the removal of the affected gland(s). However, its localization can be complicated. The usefulness of 18F-Choline PET-CT versus classical techniques is unknown. The aim of this study was to evaluate the results of 18F-Choline PET-CT in the detection of hyperfunctioning parathyroid tissue with respect to conventional imaging tests and to analyze the relationship between its findings and the levels of ca...