Endocrine Abstracts

Introduction and objectives: The strategies for therapy of metastatic medullary thyroid carcinoma (MTC) are limited. Although Tyrosine kinase inhibitors (TKI) seem to be the first-line treatment, we want to explore other possibilities. Metaiodobenzylguanidine (MIBG) is a guanethidine derivative, structurally similar to norepinephrine. It was developed as an imaging agent with 123I radiolabeling. MIBG localizes neuroendocrine tumors including MTC. We are investigatin...

Introduction: Tyrosine kinase inhibitors (TKIs) are used for treatment of iodine-refractory differentiated thyroid cancer (DTC) in patients with progressive advanced disease.Sorafenib and lenvatinib are the TKIs currently approved for this indication.Objective: To describe the clinical experience in patients with iodine-refractory DTC treated with TKIs in our Institution.Materials and methods: Restrospective cohort study of patient...

Introduction: There are known biological differences between men and women in coronary heart disease. It is important to know these differences in order to avoid inequalities in prevention, diagnosis and treatment of this pathology.Methods: We designed a retrospective, descriptive study in which we included all diabetic patients admitted to the hospital with acute coronary syndrome in 2016. Demographic data and degree of control of risk factors were regi...

Thyroid hormone (TH) signaling is essential for nervous system development. The clinical relevance of this simple statement is underscored by the severe neurological phenotypes resulting from global TH deficiency or perturbed local TH signaling during fetal development. A major aim of our research is to better understand the local action of TH during early human cortex development using cerebral organoids derived from human induced pluripotent stem cells (hiPSC) as a model sys...

The lipodystrophic syndromes are a heterogeneous group of congenital or acquired disorders characterized by either complete or partial lack of adipose tissue with the apparent accumulation of fat in other regions of the body. Their prevalence is low and ranges from 1:200000/500000 and they usually suffer metabolic abnormalities associated with the abnormal distributition of fat such as severe insulin resistance with acantosis and diabetes, progressive liver disease along with ...

Introduction: Detransition is the act of stopping or reversing a gender medical, social or surgical transition. The study’s purpose was to describe our experience with a group of transsexual people in detransition phase.Material and methods: A cohort of 204 people with gender incongruence attending the Identity Gender Unit Hospital Clinico of Valladolid from January 2014 to December 2022 was studied. Seven of those participants detransitioned and we...

Objectives: Some authors have defined subtypes within gestational diabetes (GD) based on the calculation, from glucose and insulin levels during oral glucose overload (OGTT), of indices of insulin sensitivity (Matsuda) and insulin secretion (Stumvoll). Powe et al [1] found that 30% of women with GD had predominantly low insulin secretion, 51% low insulin sensitivity and 18% both (mixed). The aim of this work is to analyze the correlation of these indices with other kn...

Introduction: Biotin is a water-soluble vitamin involved in several and important metabolic processes, recommended daily intake for adults is 30–100 μg/day and normal plasma concentrations are 0.4–1.2 ng/day. Nowadays biotin is being used in inherited metabolic diseases, multiple sclerosis and as a supplement in, over the counter multivitamins widely used for common hair and skin problems. The supraphysiologic biotin intake has produced emerging problems with bi...

Glycosylated haemoglobin (HbA1c) is considered the Gold Standard parameter for evaluating long-term glycemic control in individuals with Diabetes Mellitus (DM). The presence of hemoglobin variants or others conditions that modify its glycosylation, can affect the veracity of its measurement. The detection of these hemoglobinopathies and his knowledge by the clinicians is very important for the correct diagnosis and follow-up. We present the case of a patient who presented a he...

Introduction: ‘Atypia of undetermined significance (AUS) or follicular lesion of undetermined significance’ category is established by The Bethesda System for Reporting Thyroid Cytopathology because of the necessity to report those thyroid fine-needle aspiration (FNA) results that are not easily classified into the benign, suspicious or malignant categories. In most cases, a repeated FNA results in a more definitive interpretation. Estimated risk of malignancy for an...