Defensa y seguridad

C3a receptor signalling in ObRb-expressing neurons promotes leptin resistance and obesity-associated cardiac remodelling

07/10/2026 - Obesity is associated with hypothalamic inflammation, leptin resistance and increased cardiometabolic risk, but the neuroimmune signals linking nutrient excess to these outcomes remain incompletely...

Scientists warn a popular vitamin D supplement may have a hidden downside

08/10/2026 - Not all vitamin D supplements are created equal, and new research suggests that one popular form may have an unexpected downside. Scientists found that taking vitamin D2 can actually lower the...

Humans may not be as hardwired for violence as we thought

06/10/2026 - A study comparing 100 primate species, including humans, suggests that everyday aggression and lethal violence did not evolve as part of the same simple behavioral spectrum. Species that frequently...

“Relief empire”: Racial aphasia, colonial unknowing and international organizations in the global governance of refugees, by Megan Bradley

02/10/2026 - International organizations play vital roles in the global governance of refugees, with the Office of the UN High Commissioner for Refugees (UNHCR) spearheading assistance and protection efforts. Yet...

Ukraine rolls out drone-stopping razor fence to thwart attacks

01/10/2026 - Most of the drones being used by Russia in the war with Ukraine are controlled by cables several tens of kilometres long. A new defensive tool cuts the cables to stop the drones

A refined sticker-spacer grammar marks disordered regions with interpretable pathogenic missense variation

30/09/2026 - Intrinsically disordered regions (IDRs) of proteins show low sequence conservation, and sequence position alone is a weak predictor of disease risk. Phase-separating IDRs (PS-IDRs) are an exception,...

Intranasal adenovirus type 5 influenza vaccination enhances milk antibody responses and passive transfer to neonatal ferrets

28/09/2026 - Newborns and infants are particularly vulnerable to influenza, largely due to the immaturity of their immune systems. As such, maternal immunization is a valuable strategy to enhance...

Biodiversity protection must include language preservation

29/09/2026

TFAM Dependent Mitochondrial Fitness Limits CD8⁺ T Cell Immunopathology and Sustains Protective Immunity during Viral Pneumonia

27/09/2026 - During respiratory virus infection, CD8⁺ T cells kill infected cells and establish antigen-specific memory, but mechanisms regulating these functions remain incompletely understood. Here, we...

Taking HRT in perimenopause may ward off cardiovascular disease

24/09/2026 - Hormone replacement therapies may reduce the risk of heart attacks and stroke, but the timing of when they are started could be critical

Metabolic-epigenetic coupling between leucine catabolism and glycolysis drives CDK4/6 inhibitor resistance

24/09/2026 - Resistance to CDK4/6 inhibitors limits the durability of therapy for ER+ breast cancer. Despite the identification of mechanisms that regulate resistance, the metabolic adaptations that enable...

Single-cell atlas of transcriptomic vulnerability across brain disorders

23/09/2026

Dimensional and Categorical Predictors of Theory of Mind Network Activation: A transdiagnostic fMRI Study in Psychiatric Inpatients

23/09/2026 - Socio-cognitive alterations are widely observed across different psychiatric conditions, yet it remains unclear whether these deficits map onto distinct diagnostic categories or represent a shared...

Comparative Genomics Reveals Genetic Factors Associated with Intraspecific Pigmentation Differences in Cassava

22/09/2026 - Cassava produces starch-filled tubers which are a crucial food source for many people, especially in Africa. This plant species is famous for drought tolerance and resilience, but changing conditions...

Differential Cytotoxicity of PVP-Copper Nanoparticles in Breast Cancer Cell Lines: Insights from Basal Transcriptomic Profiles

22/09/2026 - Breast cancer is a heterogeneous disease comprising molecular subtypes with distinct therapeutic vulnerabilities. Among emerging therapeutic strategies, copper-based nanoparticles have shown...

Chronic stress may be quietly reshaping your heart

21/09/2026 - Chronic inflammation tied to stress, lifestyle, mental health, and socioeconomic conditions may silently change the heart for years before any symptoms appear. People with the highest inflammation...

Stopping Ozempic may raise heart attack and stroke risk

21/09/2026 - A large study suggests the cardiovascular benefits of GLP-1 drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound can disappear surprisingly quickly when treatment stops. After two years off the...

Vulnerability of triple negative breast cancer to daraxonrasib pan-RAS(on) inhibition

18/09/2026 - Triple-Negative Breast Cancer (TNBC) is a clinical subtype where aberrant expression of receptor tyrosine kinases (RTKs) leads to the activation of the RAS-RAF-MEK-ERK pathway contributing to tumor...

Robots clash in first naval engagement between uncrewed sea drones

17/09/2026 - Earlier this month, the Ukrainian Navy used an uncrewed vessel to attack and sink an uncrewed naval robot operated by Russian forces

Jet-powered drones pose a new threat to Ukraine – can they be stopped?

14/09/2026 - Ukraine is racing to design faster, more capable interceptor drones to tackle Russia's new generation of jet-powered Shahed attack drones

Scientists find signs of extreme aging and youth in the same 117-year-old

11/09/2026 - A remarkably detailed study of Maria Branyas, who lived past 117, reveals that extreme longevity may involve both intense aging and powerful biological protection at the same time. Researchers found...