Endocrine Abstracts

Loss of function of succinate dehydrogenase (SDH), caused by mutations in each of the 4 subunits – SDHA/B/C and D – is associated with development of phaeochromocytomas and paragangliomas (PPGLs). The mutations lead to loss of enzymatic activity and subsequent accumulation of the oncometabolite succinate, a driver of tumourigenesis. It is well established but poorly understood why mutations in SDHB are associated with more aggressi...

Background: Obesity is associated with complex multisystem pathology and significant psychosocial burden. Yet, despite its increasing prevalence, the commissioning of Specialist Weight Management Services remains limited.Methods: Retrospective service evaluation of a proportion of patients (n=179) engaging with the Central London Community Healthcare Specialist Weight Management Service for at least 6-months from 2012 onwards. Outcome measures, ...

Background & Aims: NutriAct is a 36-month randomized controlled multi-center trial aiming to analyze the effects of a dietary pattern focusing on a high-protein and high-unsaturated fatty acids (UFA) intake on healthy aging. We aimed to explore changes in intake of macronutrients and determine factors associated with a successful modulation of dietary pattern after 36 months in elderly community dwelling participants.Methods: 502 participants were ra...

Objective: To study time-dependent changes in the prevalence and patient characteristics of acromegaly, as well as to access the impact of changes in treatment on disease control.Methods: A total of 107 patients with acromegaly were identified by healthcare registries and subsequently validated by patient chart review over a three-decade period (1992-2021).Results: The prevalence of acromegaly significantly increased throughout the...

Evidence indicates that the adrenals are sexually dimorphic and asymmetric. These differences may have implications for the prevalence and progression of adrenal diseases, which also show asymmetry and sexual dimorphism. The present study aims to characterize the morphological and metabolic differences associated with adrenal sex and asymmetry in mice and humans. Adrenals were compared bilaterally in male and female C57B/6NRj mice with regard to morphological and hormonal char...

Introduction: There are limited data on the effectiveness and safety of GHRT in older patients with AGHD. We compared real-world GHRT outcomes in older (aged ≥60 years) vs middle-aged (35–<60 years) adults.Methods: NordiNet® IOS (NCT00960128) and ANSWER (NCT01009905) were non-interventional studies investigating long-term effectiveness and safety of GHRT with Norditropin® (somatropin, Novo Nordisk). Safety was assessed in the ful...

Case: A 33 year old gentleman presented with significantly raised testosterone levels, testicular pain, erectile dysfunction and weight loss. He denied use of anabolic steroids. Upon physical examination he looked muscular and tanned. Left testicle was tender with no palpable mass. Raised androgen levels (Siemens immunoassay) were confirmed by liquid chromatography tandem mass spectrometry (LC-MS/MS), ruling out assay interference. In view of his ongoing denial of substance mi...

Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic disease. Steroid hormones and bile acids are established regulators of metabolic phenotype. 5β-reductase (AKR1D1) is highly expressed in human liver where it inactivates steroid hormones and catalyzes a fundamental step in bile acid synthesis. We hypothesized that AKR1D1 plays a key role in hepatic metabolic homeostasis. Genetic manipulation of AKR1D1 ...

Case: A 33 year old gentleman presented with significantly raised testosterone levels, testicular pain, erectile dysfunction and weight loss. He denied use of anabolic steroids. Upon physical examination he looked muscular and tanned. Left testicle was tender with no palpable mass. Raised androgen levels (Siemens immunoassay) were confirmed by liquid chromatography tandem mass spectrometry (LC-MS/MS), ruling out assay interference. In view of his ongoing denial of substance mi...

Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic disease. Steroid hormones and bile acids are established regulators of metabolic phenotype. 5β-reductase (AKR1D1) is highly expressed in human liver where it inactivates steroid hormones and catalyzes a fundamental step in bile acid synthesis. We hypothesized that AKR1D1 plays a key role in hepatic metabolic homeostasis. Genetic manipulation of AKR1D1 ...