Hälsa & medicin

A new trial shows a brief digital intervention—asking people to play a visual puzzle on their phone after trauma—cuts intrusive memories by roughly 50% within weeks. For employers managing burnt-out frontline staff, the finding offers a scalable, low-cost tool to reduce psychological injury and keep experienced workers healthy and productive.EN

Researchers have pinpointed how a genetic mutation causes ALS by disrupting the body's purine metabolism—a finding that could open new drug targets. The discovery, made in patient cells and cerebrospinal fluid, suggests pharmaceutical companies may be able to reverse the damage by restoring a single enzyme.EN

Researchers are developing a practical management guide to help grassroots sports club leaders implement health initiatives—a critical gap since most lack the training and tools to do so. The framework, tested across 22 international experts, could reshape how community sports organizations operate as public health assets.EN

Researchers have defended findings showing elite footballers possess distinct cognitive profiles, pushing back against recent criticism. The dispute matters because understanding how professional athletes think could reshape talent identification, training methods, and investment strategies in sports organizations worldwide.EN

Researchers have identified a molecular pathway that allows tumors and pathogens to evade immune detection by exploiting the cell's natural stress response. The discovery of lipocalin 2's role in this immune evasion could reshape immunotherapy design and inform new strategies for cancer and infectious disease treatment.EN

A study of 1,250 Iranian employees found that effort-reward imbalance—when workers feel their effort isn't matched by fair compensation—and depression each significantly worsened sleep quality. Depression alone cut sleep quality by 2.3 points on a standard scale. The findings suggest companies face hidden productivity costs from poor workplace conditions and untreated mental health.EN

A tightly controlled clinical trial shows that rising estrogen levels during the menstrual cycle reduce gray matter volume in the striatum, a brain region critical for emotion regulation. The finding clarifies how sex hormones physically reshape the brain and could inform treatment strategies for mood disorders and contraceptive development.EN

A major European trial found that giving acetaminophen to extremely premature infants within hours of birth may prevent a common heart condition without the side effects of current drugs. The finding could reshape treatment protocols across neonatal intensive care units and reduce long-term complications in one of medicine's most vulnerable populations.EN

Researchers in Romania have identified a lichen extract that dramatically boosts the antioxidant power of cosmetic oils—potentially offering green beauty brands a competitive edge. The discovery matters because natural ingredients with proven stability and safety could reshape the $60+ billion natural cosmetics market, where supply chains and ingredient efficacy remain industry pain points.EN

Mekanisk ventilering på intensivvård orsakar snabb muskelförtvining genom selektiv myosinförlust — en mekanism som nu är kartlagd in vivo. Forskningsgruppen vid Friedrich-Alexander-Universitetet i Erlangen reproducerade kritisk sjukdomsmyopati (CIM) i råttor genom ICU-simulation och dokumenterade förändrad proteinomsättning och minskade aktinkraftförhållanden efter 5–10 dagars intervention. Fyndet är kliniskt relevant för intensivvårdsprotokoll: muskelåterhämtning kräver målriktade interventioner redan under ventileringsfasen, inte först efter utskrivning. För regionvård betyder det att evidensbaserad rehabilitering och näringsstöd under ICU-vistelsen får högre prioritet för att begränsa långvarig funktionell förlust. Sveriges lantbruksuniversitet bidrog till studien, vilket stärker Skandinaviens forskningsmässiga närvaro på området. Resultaten öppnar vägar för farmakologiska eller mekaniska interventioner som motverkar myosinabbrytninga — potentiell marknad för MedTech-lösningar riktade mot muskelpreservering.

NephroNet möjliggör tillförlitlig automatiserad klassificering av njurpatologi på CT-bilder — ett kritiskt behov då befintliga AI-modeller ofta lider av kalibreringsfel och dataleakage mellan patientbilder. Forskarna från Xi'an Jiaotong-Liverpool University och Stockholm University utvecklade en kompakt neuralnätverksmodell (1,46 miljoner parametrar) tränad på 12 446 bilder från multicenter-kohort för att skilja mellan normal vävnad, cystor, tumörer och stenar. Modellen uppnådde 99,97 procent noggrannhet och ECE-värde på 0,0021, vilket indikerar stark sannolikhetskalibrering — en förutsättning för klinisk tillit. Transparenta tränings- och valideringssplit samt explicit rapportering av osäkerhet stödjer reproducerbar jämförelse mellan kliniska IT-system. Begränsningen är att data kommer från en region, så extern validering återstår innan inköp för regionvårdens bildanalysplattformar kan rekommenderas.

Psykedeliska substanser väcker intresse som potentiell behandling för ADHD, men en systemativ granskning från Karolinska Institutet och King's College London visar att evidensbasen är för svag för kliniska rekommendationer. Forskarna analyserade 1 023 studier och inkluderade sex uppfyllande kriterier: en randomiserad kontrollerad försök fann ingen signifikant effekt jämfört med placebo, tre tvärsnittsstudier rapporterade positiv effekt utifrån patientbeskrivningar, och en mätning med Child Bipolar Questionnaire visade förbättring. En fallrapport dokumenterade att ketamin förbättrade både depressiva symtom och funktion. Studierna löser inte kritiska frågor: det är okänt om ketaminrespondenter faktiskt hade ADHD, och ingen forskning undersökte effekter på patientundergrupper med olika orsaker till symptom. Resultaten pekar på behovet av väl utformade kliniska försök innan psykedelika kan värderas för regulatorisk godkännande eller inköpsbeslut inom regionvården.

A new study reveals that Sweden's 2013 palliative care guidelines have failed to shift where terminally ill cancer patients die, with hospitals remaining the dominant place of death rather than patients' homes. Regional disparities persist, suggesting governance gaps are leaving healthcare systems unprepared to deliver end-of-life care equitably—a finding with implications for how countries organize oncology services.EN

An international panel of 29 critical care specialists has reached consensus on how to safely use citrate anticoagulation in kidney replacement therapy, despite risks of metabolic complications. The guidance could improve outcomes for thousands of ICU patients annually while reducing dangerous blood clots and minimizing reliance on alternative anticoagulants.EN

A major Nordic study of 14.9 million workers found that female farmers and male fishermen face significantly elevated thyroid cancer risk—suggesting occupational exposures, not just better detection, drive rising rates. The findings could reshape how employers and health systems identify and monitor at-risk populations.EN

A study of nearly 4,000 peer comments in dental education reveals that while students can give specific, actionable feedback, they often default to passive praise rather than critical analysis. The finding suggests that professional training programs may need to overhaul how they teach evaluation skills—a gap with implications for quality control in healthcare and other fields relying on peer assessment.EN

Researchers have identified a direct biological link between fatty liver disease and bone loss: excess fat in the liver shuts down the production of active vitamin D, crippling the body's ability to maintain bone strength. The discovery, made using advanced 3D human tissue models, suggests that bone fragility in metabolic disease patients may be preventable by restoring liver vitamin D metabolism.EN

Researchers found that children carrying a single copy of the β-thalassaemia gene face significantly higher rates of severe anemia requiring hospital care—a finding that could reshape screening and treatment protocols across sub-Saharan Africa. The discovery complicates the assumption that the genetic variant offers net health benefits by protecting against malaria.EN

Researchers have refined a prediction model that more accurately identifies which men with prostate cancer can safely skip aggressive treatment and opt for monitoring instead. The finding could expand active surveillance options for lower-risk patients while reducing overtreatment—a major driver of healthcare costs and patient side effects.EN

A new review reveals that hospitals worldwide follow wildly different protocols for tracking lung transplant recipients, leaving patients vulnerable to delayed detection of organ failure. The fragmentation in post-transplant surveillance—from imaging schedules to blood tests—is costing lives and creating liability risks, driving urgent calls for industry-wide standards.EN

Researchers found that four commonly used mouse models of lupus activate distinct molecular pathways, suggesting results from one model may not predict human outcomes. The discovery could reshape how biotech and pharma companies design lupus drug trials, potentially reducing expensive late-stage failures by better matching preclinical work to actual patient biology.EN

Swedish researchers tracking 11,000 adults found that depressive symptoms significantly increase the risk of atherosclerotic heart disease, even accounting for traditional risk factors. The finding suggests mental health screening could become a practical tool for identifying high-risk patients earlier and may reshape how insurers and healthcare systems prioritize preventive care.EN

Swedish researchers have validated a brief assessment tool that clinics can use to quickly spot family caregivers struggling with anxiety and depression. The finding matters because overwhelmed caregivers often miss work and generate hidden healthcare costs—early intervention could reduce both.EN

Platelet-rich plasma injections significantly accelerate return-to-sport timelines for athletes with acute muscle injuries, according to a meta-analysis of nine clinical trials. The finding could reshape sports medicine protocols and reduce lost-time costs for professional teams and athletic organizations.EN

Swedish researchers found that dementia patients dying at home require significantly more emergency room visits and hospital care than those in nursing homes, despite being younger and healthier overall. The finding has major implications for healthcare systems planning end-of-life capacity and for policymakers weighing home care versus institutional settings.EN