Dietary restriction (DR) robustly increases lifespan across taxa. However, in humans, long-term DR is difficult to maintain, leading to the search for compounds that regulate metabolism and increase lifespan without reducing caloric intake. The magnitude of lifespan extension from two such compounds, rapamycin and metformin, remains inconclusive, particularly in vertebrates. Here, we conducted a meta-analysis… Continue reading #Rapamycin, Not #Metformin, Mirrors #Dietary Restriction-Driven #Lifespan Extension in Vertebrates: A Meta-Analysis
#Fecal #metabolite profiling identifies critically #ill patients with increased 30-day #mortality
Critically ill patients admitted to the medical intensive care unit (MICU) have reduced intestinal microbiota diversity and altered microbiome-associated metabolite concentrations. Metabolites produced by the gut microbiota have been associated with survival of patients receiving complex medical treatments and thus might represent a treatable trait to improve clinical outcomes. We prospectively collected fecal specimens, defined… Continue reading #Fecal #metabolite profiling identifies critically #ill patients with increased 30-day #mortality
Human– #AI collectives most accurately #diagnose #clinical vignettes
Large language models (LLMs) have great potential for high-stakes applications such as medical diagnostics but face challenges including hallucinations, biases, and lack of common sense. We address these limitations through a hybrid human–AI system that combines physicians’ expertise with LLMs to generate accurate differential medical diagnoses. Analyzing over 2,000 text-based medical case vignettes, hybrid collectives… Continue reading Human– #AI collectives most accurately #diagnose #clinical vignettes
Active #Travel Mode and Incident #Dementia and #Brain Structure
Importance Active travel modes, such as walking and cycling, are feasible and readily embraced forms of physical activity, but their association with dementia risk and brain structure remains unclear.Objectives To investigate the long-term association between travel modes and dementia risk and brain structural metrics and to evaluate whether genetic predisposition could modify the association between… Continue reading Active #Travel Mode and Incident #Dementia and #Brain Structure
#Glucagon-Like Peptide-1 Receptor Agonists and Risk of Neovascular Age-Related #Macular #Degeneration
Importance Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) are extensively used in treating diabetes and obesity, yet little is known about the long-term ocular effects of systemic prolonged exposure.Objective To evaluate the risk of developing neovascular age-related macular degeneration (nAMD) associated with the use of GLP-1 RAs in patients with diabetes.Design, Setting, and Participants This population-based,… Continue reading #Glucagon-Like Peptide-1 Receptor Agonists and Risk of Neovascular Age-Related #Macular #Degeneration
Association of #plant -based diets with subclinical #cardiovascular disease in U.S. adults, 1999-2004
BackgroundDietary patterns currently recommended for cardiovascular health often emphasize the consumption of plant foods.MethodsWe included 7,708 participants from the National Health and Nutrition Examination Survey 1999-2004 aged ≥20 years who were not pregnant and did not have a self-reported history of cardiovascular disease. Dietary intake was assessed using a 24-hour dietary recall. All plant-based dietary… Continue reading Association of #plant -based diets with subclinical #cardiovascular disease in U.S. adults, 1999-2004
Volume and Intensity of #Walking and Risk of Chronic Low #Back #Pain
Importance Chronic low back pain (LBP) is a prevalent and costly condition, and regular physical activity may reduce its risk. Walking is a common and accessible form of physical activity, but its association with the risk of chronic LBP is unclear.Objective To examine whether accelerometer-derived daily walking volume and walking intensity are associated with the… Continue reading Volume and Intensity of #Walking and Risk of Chronic Low #Back #Pain
Social #anxiety disorder-associated gut #microbiota increases #social #fear
Understanding the biological basis of social anxiety disorder (SAD), one of the most disabling of the anxiety disorders, will allow for novel treatment strategies to be developed. Here, we show that gut microbiota may be such a target. Mice that received SAD patient microbiota had a specific heightened sensitivity to social fear without affecting other… Continue reading Social #anxiety disorder-associated gut #microbiota increases #social #fear
Contribution of Modifiable Midlife and Late-Life #Vascular Risk Factors to Incident #Dementia
Importance Midlife vascular risk factors are associated with an elevated risk of dementia. However, the total contribution of vascular risk factors in midlife and late life with incident dementia is uncertain.Objective To quantify the proportion of incident dementia attributable to modifiable vascular risk factors measured in midlife and late life and to examine differences by… Continue reading Contribution of Modifiable Midlife and Late-Life #Vascular Risk Factors to Incident #Dementia
2 Medical News 