Isotope Encoded Spatial Biology Identifies Amyloid Plaque-Age-Dependent Structural Maturation, Synaptic Loss, and Increased Toxicity.

Understanding how amyloid beta (Aβ) plaques form and progress to neurotoxicity in Alzheimer's disease remains a significant challenge. This study aims to elucidate the processes involved in Aβ plaque formation and maturation using a knock-in Aβ mouse model ( ). By employing mass spectrometry imaging and stable isotope labeling, we timestamped Aβ plaques from their initial deposition, enabling the spatial tracking of plaque aging.

Health-Related Quality of Life and Health Utility After Metabolic/Bariatric Surgery Versus Medical/Lifestyle Intervention in Individuals With Type 2 Diabetes and Obesity: The ARMMS-T2D Study.

Objective: Type 2 diabetes and obesity are associated with reduced health-related quality of life (HRQoL) and health utility (HU), but long-term effects of metabolic/bariatric surgery (MBS) compared with those of medical/lifestyle intervention (MLI) on these outcomes are unclear.

Research Design And Methods: We studied 228 individuals with type 2 diabetes and obesity randomly assigned to MBS (Roux-en-Y gastric bypass, sleeve gastrectomy, or gastric band; n = 152) or MLI (n = 76) in the ARMMS-T2D study. HRQoL (36-Item Short-Form Health Survey [SF-36], including Physical Component Score [PCS] and Mental Component Score [MCS]) and HU (Short Form 6 Dimensions [SF-6D]) were measured annually up to 12 years.

Patient Perceptions of Provider Race Concordance and Quality of Chronic Illness Care.

Background: Black people are more likely to have hypertension and report lower quality of care than White people. Patient-provider race concordance could improve perceived quality of care, potentially lessening disparities.

Objective: Investigate the association between patient-provider race concordance and patient-perceived quality of chronic disease care, as measured by the Patient Assessment of Chronic Illness Care (PACIC) scale.

Definition and diagnostic criteria of clinical obesity.

Current BMI-based measures of obesity can both underestimate and overestimate adiposity and provide inadequate information about health at the individual level, which undermines medically-sound approaches to health care and policy. This Commission sought to define clinical obesity as a condition of illness that, akin to the notion of chronic disease in other medical specialties, directly results from the effect of excess adiposity on the function of organs and tissues. The specific aim of the Commission was to establish objective criteria for disease diagnosis, aiding clinical decision making and prioritisation of therapeutic interventions and public health strategies.

Reconciling heterogeneous dengue virus infection risk estimates from different study designs.

Uncovering rates at which susceptible individuals become infected with a pathogen, i.e., the force of infection (FOI), is essential for assessing transmission risk and reconstructing distribution of immunity in a population.