Endocrine Abstracts

Introduction: Obesity today is a growing epidemic throughout the world. With weight gain, the risk of type 2 diabetes and hypertension increases. With the approval of GLP-1 RA (semaglutide) by the FDA in June 2021 for weight reduction, a big push was given regarding the possibilities of obesity and especially for people at high risk of developing type 2 diabetes.Aim: To analyze the impact of semaglutide on insulin resistance and weight loss in patients w...

Background and aim: Hyperglycemia is an important pathogenetic factor, which causes abnormalities at the cardiac myocyte level, leading to structural and functional abnormalities and diabetic cardiomyopathy (DCM). It has been proposed that DCM could also occur as a consequence of other metabolic alterations. Adiponectin concentration is negatively associated with obesity, insulin resistance (IR), oxidative stress and endothelial dysfunction. It can be considered as a predictiv...

Background: The cyclic GMP-AMP synthase stimulator of interferon genes (cGAS-STING) signalling pathway is an element of the innate immune response and is activated by the presence of DNA in the cytosol. Triggering of this immune response may occur in the setting of infection or neoplasia. Activation of this pathway results in phosphorylation of interferon regulatory factor 3 and downstream transcription of cytokines such as interferon β and interleukin-6. Polyinosinic:pol...

Introduction: AIP mutations are responsible for 15-30% of cases of familial isolated pituitary adenomas. The pathophysiology that drives this AIP-related pituitary tumorigenesis is not fully understood. We developed a pituitary-specific Aip knockout (KO) mouse model, which mostly recapitulates the human phenotype.Aims: To performed comparative gene expression analysis of Aip-KO mouse pituitary tumours and AIP mutation positive ...

Introduction: Acromegaly links to cardiomyopathy and potential cardiac failure, if untreated. Mechanisms involved in acromegalic cardiomyopathy are incompletely understood. We investigated the effects of growth hormone (GH) excess and somatostatin receptor ligands (SRLs) on cardiac fibrosis using an acromegalic mouse model with pituitary-specific deletion of the Aip gene coding aryl hydrocarbon receptor interacting protein (AipFlox/Flox;Hesx1<su...

BackgroundOxidative stress in hyperlipidemic conditions can affect superoxide dismutase (SOD), a natural antioxidant in the body. One of the organs affected by increased oxidative stress due to hyperlipidemic conditions is the testicular organ. Increased oxidative stress in the testicular organ can damage to sperm cell and increase the risk of infertility. Soy milk is a beverage product made from soybeans which are widely consumed as an alternative to co...

Non-functioning pituitary adenomas (NFPAs) are the second most common subtype (15-43%) of all clinically presenting pituitary adenomas. Although the primary treatment of symptomatic NFPAs is surgery, gross total resection is achieved only in about 66% of the cases, and 20% of gross total resected tumours recur after 10 years. Despite recent advances in medical management of pituitary tumours, NFPAs remain the only subtype with no widely accepted pharmacological treatment. Expr...

Introduction: Germline mutations in the aryl hydrocarbon receptor interacting protein (AIP) gene predispose to growth hormone (GH, 90% of patients) or prolactin (PRL)-secreting tumours, with negligible number of patients with other pituitary tumour types. Animal models of acromegaly are scarce and Aip models have controversial data. Therefore we have generated two pituitary-specific Aip knockout mouse models to study the consequences of loss of AIP p...

Introduction: Myxedema coma is the ultimate stage of severe long-standing hypothyroidism, representing a true endocrinological emergency. Many precipitating factors have been identified, including the initiation of certain drugs.Case report: An 89-year-old woman was admitted to our emergency department due to an inaugural seizure. There was a history of progressive functional deterioration in the last 7 weeks, short after being diagnosed with lymph node ...

Introduction: Hypercalcemia is not uncommon in clinical practice and may present as a life-threatening emergency. Its main aetiologies are primary hyperparathyroidism (80% parathyroid adenomas; 20% multiglandular hyperplasia, <1% parathyroid carcinomas) and hypercalcemia of malignancy, with or without presence of bone metastases.Case Report: We present a case of a 77 years-old male, submitted to a subtotal gastrectomy at the age of 73 due to a perfor...