Endocrine Abstracts

Background: Peptide receptor radionuclide therapy (PRRT) including Lutetium177 (Lu177) has changed the treatment landscape of metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs). There is a subgroup of patients who are resistant or develop resistance after initial success to PRRT, indicating that accurate predictive markers are urgently needed to identify who will benefit from PRRT. We hypothesize that expression of ATRX (Alpha Thalassemia and Mental Retardation...

Background: Somatostatin analogues (SSAs) are the standard of care first line therapy for metastatic well-differentiated neuroendocrine tumors (NETs). They are approved for both alleviating hormone-related symptoms for functional tumors and inhibiting tumor growth. Their anti-proliferative benefit in the refractory setting is debatable due to lack of supportive literature. This systematic review compared efficacy of targeted therapies (Everolimus, Sunitinib, Surufatinib, Lenva...

Vasopressin (VP) and oxytocin (OT), the antidiuretic and natriuretic hormone, respectively, maintain the osmotic homeostasis. These molecules are synthesized in the magnocellular neurons (MCNs) of the supraoptic nuclei (SON) in the hypothalamus, transported via the axons toward the neural lobe of hypophysis (NLH) and released into the blood stream.Dp71 is the major form of dystrophins in the SON and NLH, where it was located in the glial-end-feet and end...

Background: Mutations in succinate dehydrogense-B (SDH-B) or von Hippel Lindau (VHL) genes can result in chromaffin tumours.Objective: To compare the clinical phenotypes of subjects developing chromaffin tumours as a result of SDH-B or VHL mutations.Subjects: Thirty-one subjects with chromaffin tumours. Sixteen subjects had SDH-B gene mutations and 15 subjects had a diagnosis of VHL.<p ...

Changes in maternal dietary intake during gestation can affect muscle development1 and may be linked to the catabolic actions of hormones, such as glucocorticoids, which inhibits the insulin like growth factor 1 (IGF1) pathway. This study examines the potential effects of glucocorticoids and skeletal muscle adaptations in seven-day-old offspring exposed to suboptimal gestational environments.Pregnant sows were randomly assigned to a commercial...

While female fertility is known to be sensitive to conditions of low body fuel reserves, the reproductive consequences of persistent energy excess remain ill defined. Yet, the pandemic proportions of obesity, and its potential impact on the gonadotropic axis, call for a better understanding of this phenomenon. Alike, the influence of ovarian hormones on the pathophysiology of obesity and its complications merits further investigation. In this work, we aimed to elucidate the me...

Background: Arginine vasopressin (AVP) changes during altitude acclimatization is of clinical interest as increases in their plasma levels (with reference to sea-level (SL)) have been associated with fluid retention accompanied by elevated plasma cortisol levels. Studies have reported no change/ decrease in plasma AVP during ‘normal’ acclimatization. This study was conducted to evaluate plasma AVP changes and the associated physiological changes during chronic exposu...

Subcutaneous lipomas (SL) are the most common benign mesenchymal tumors with an estimated prevalence of 1%. They usually appear single, between 50–60 years of age, without gender differences. However, multiple lipomatosis (ML) occurs in 5–10% of patients, more frequently in men and almost 30% of them have family history of ML. Cytogenetic abnormalities are found in 50–80% of cases (at 12q15) and the presence of an underlying mitochondrial dysfunction has been su...

Introduction: Somatostatin analogues (SSA) are one of the main effective drug used in acromegaly. Sludge and/or cholelithiasis development represents oneof the more common side effect. The aim of the study was to analyze the frequency of biliary adverse events (BAE) and possible predictive factors, to propose a work-up strategy for their management.Method: This is a single centre, longitudinalretrospective study; we enrolled 91 acromegaly patients during...

Ceramide (Cer) and sphingomyelin (SM) belong to a family of sphingolipids (SLs). Both SLs are mixtures of many species, differed in length and saturation of the fatty acid chain. Cer and SM are important components of the plasma membrane. In addition, Cer is a cellular second messenger, mediating apoptosis. The altered profiles of blood plasma/serum SLs were found in many pathologies. Interestingly, circulating SLs were proposed to be the early predictors of Alzheimer disease....