Obesity (Silver Spring)
September 2025
Objective: The melanocortin-4 receptor agonist setmelanotide has demonstrated effectiveness in phase 3 clinical trials for patients with monogenic obesity caused by biallelic variants in the leptin receptor (LEPR) and pro-opiomelanocortin (POMC), as well as for individuals with Bardet-Biedl syndrome (BBS). However, real-world evidence remains limited. This study evaluates the long-term effectiveness and safety of setmelanotide in patients who received treatment under a pre-marketing early-access authorization.
View Article and Find Full Text PDFBackground: Elexacaftor-tezacaftor-ivacaftor (ETI) became available for adults with cystic fibrosis (CF) in 2019, but its impact on CF-related diabetes (CFRD) remains unclear.
Methods: A single-center retrospective cohort study was conducted among adults with CFRD to examine the change in insulin dose-adjusted Hemoglobin A1c (IDAA1c). Linear mixed effects model (LMEM) analysis was used to investigate the change in IDAA1c between baseline and 24 months of follow up, comparing an ETI-treated group to an unexposed group.
Aims/hypothesis: The importance for normal insulin secretion of ceramide synthesis is unclear. ceramide synthesis requires serine palmitoyl transferase, SPT2, encoded by .
Methods: We generated β-cell-selective null mice by crossing animals with alleles to mice expressing recombinase from the locus.
Glucagon-like peptide 1 (GLP-1) stimulates insulin secretion and holds significant pharmacological potential. Nevertheless, the regulation of energy homeostasis by centrally-produced GLP-1 remains partially understood. Preproglucagon cells, known to release GLP-1, are found in the olfactory bulb (OB).
View Article and Find Full Text PDFObjective: The central melanocortin system is essential for the regulation of food intake and body weight. Agouti-related protein (AgRP) is the sole orexigenic component of the central melanocortin system and is conserved across mammalian species. AgRP is currently known to be expressed exclusively in the mediobasal hypothalamus, and hypothalamic AgRP-expressing neurons are essential for feeding.
View Article and Find Full Text PDFThe G protein-coupled receptor melanocortin-4 receptor (MC4R) and its associated protein melanocortin receptor-associated protein 2 (MRAP2) are essential for the regulation of food intake and body weight in humans. MC4R localizes and functions at the neuronal primary cilium, a microtubule-based organelle that senses and relays extracellular signals. Here, we demonstrate that MRAP2 is critical for the weight-regulating function of MC4R neurons and the ciliary localization of MC4R.
View Article and Find Full Text PDFBackground: Acute thiamine deficiency can occur in patients with or without history of alcohol abuse and can lead to life-threatening complications. Clinical diagnosis is challenging, often resulting in delayed recognition and treatment. Patients may present with heterogenous symptoms, more diverse than the historical neurological description.
View Article and Find Full Text PDFRheumatoid arthritis (RA) leads not only to joint destruction but also to systemic manifestations, with an increased incidence of cardiovascular events (CVE). Many studies have shown a link between RA severity and CV risk, but the duration of follow-up remains often insufficient to allow a conclusion. The CVE definition was generally reduced to myocardial infarction and stroke, and few studies were conducted in non-Anglo-Saxon countries with low CV incidence.
View Article and Find Full Text PDFRheumatoid arthritis (RA) remains a cause of morbidity and mortality in many patients while new treatments have changed the face of the disease. Despite the emergence of these new drugs, cardiovascular (CV) diseases remain more frequent in RA patients compared with the general population. However, predictive biomarkers of RA severity and precise guidelines to manage the CV risk in these patients are still lacking.
View Article and Find Full Text PDFBackground: Plasma citrulline is currently used in clinical practice as a marker of small bowel functional mass. Behaviour of plasma citrulline after bariatric surgery and its link with post-operative outcome are still poorly understood.
Objective: Primary objective was to compare plasma citrulline 12 months after two types of bariatric surgery with pre-operative concentrations.
Background: Monogenic diabetes (MgD) accounts for 1-2% of all diabetes cases. In adults, MgD is difficult to distinguish from common diabetes causes. We assessed the diagnosis rate and genetic spectrum of MgD using next-generation sequencing in patients with late adolescence/adult-onset diabetes referred for a clinical suspicion of MgD.
View Article and Find Full Text PDF