Hälsa & medicin

A study of Kenyan children exposed to multiple malaria parasites found no evidence that cumulative infections accelerate cellular aging, challenging assumptions about hidden health costs from endemic disease. The finding could reshape how researchers think about long-term health impacts in malaria-prone regions and inform resource allocation for childhood interventions.EN

Researchers have developed an artificial intelligence system that detects dangerous heart attacks from ECG readings with 95% accuracy—significantly better than current clinical standards that rely on ST-segment changes and troponin tests. The breakthrough could reduce delays in getting patients to life-saving procedures and cut unnecessary emergency catheterizations, reshaping how hospitals triage cardiac emergencies.EN

Researchers discovered that lupus patients carrying high genetic risk scores maintain elevated immune system inflammation even when disease appears controlled and treated with standard drugs. The finding suggests current therapies may mask rather than resolve underlying biological differences, potentially reshaping how doctors monitor and treat the autoimmune disease.EN

Swedish researchers tracked over 3.6 million women and found that premenstrual disorders and psychiatric conditions mutually reinforce each other — not a one-way relationship. The finding could reshape how clinicians diagnose and treat both conditions, affecting treatment protocols across healthcare systems and potentially reducing misdiagnosis rates.EN

A new study reveals that bariatric surgery reshapes the gut microbiome in ways linked to diabetes remission, independent of how much weight patients lose. The finding could help doctors predict which patients will see the best metabolic improvements and inform development of microbiome-targeted therapies for diabetes.EN

An international study of 222 patients found that needle biopsies of phaeochromocytomas and paragangliomas—rare neuroendocrine tumors—are safer than long-standing medical guidance suggested. The finding challenges a decades-old recommendation based mainly on isolated case reports, potentially opening diagnostic pathways that were previously considered too risky.EN

Malmö universitet presenterar en molekylär imprinting-teknik som löser ett långvarigt problem inom cancerforskningen: att särskilja närliggande fosforyleringssajter på proteiner. Konventionell fosfoproteomik missar låga concentrationer av peptider och kan inte skilja mellan isomerer — en kritisk begränsning när man kartlägger cellulär signalering. Forskarna utvecklade syntetiska receptorer baserade på imprinted polymerer för att selektivt fånga definierade fosfopeptidmotiv från cancercellproteom. Med ZAP70-kinase som modell kunde de lösa fosforylering vid två närliggande tyrosinresiduerna (pY492 och pY493) i ett regulatoriskt motiv — en genombrytning för sajt-upplösning. Integrerat med vätskekromatografi-masspektrometri möjliggör metoden känslig detektion av låg-abundanta, isomeriska peptider som traditionell berikelse missar. För leverantörer av analysservices och diagnostik öppnar denna plattform vägar att sälja högupplösta signalerings-karteringar för precision-onkologi redan inom 3–5 år.

A new experimental study reveals that wane—a natural wood defect where edges are missing—significantly compromises the strength of wood finger joints used in construction and furniture. The findings could force manufacturers to reconsider quality standards and timber grading practices, potentially affecting production costs and building safety protocols.EN

A Phase 3 trial published in the New England Journal of Medicine has tested brepocitinib for dermatomyositis, a rare autoimmune condition that attacks skin and muscles. The result could expand treatment options for patients with this debilitating disease and signal a new therapeutic pathway for related autoimmune disorders.EN

Swedish researchers tracking 3 million births found that maternal diabetes—both gestational and type 1/2—significantly increases offspring cardiovascular disease risk decades later. The finding has major implications for prenatal screening programs, insurance models, and clinical follow-up protocols that currently treat these children as lower-risk after birth.EN

A new study finds that personalized psychological treatment focused on a patient's most influential mental barriers produces better outcomes than random approaches. The research suggests healthcare systems could improve pain management by first identifying which psychological factor matters most to each individual, then building treatment around that priority.EN

GLP-1-receptoragonister ökar risken för framre iskemisk optikusneuropati jämfört med SGLT-2-hämmare, enligt svensk registerdata från 107 518 respektive 185 898 patienter. Efter ett år rapporterades AION hos 0,04 procent av GLP-1-RA-användare mot 0,02 procent av SGLT-2-hämmare-användare (RR 1,93), medan motsvarande siffror efter fem år var 0,12 procent respektive 0,07 procent (RR 1,69). Karolinska Institutet och danska forskare identifierade emellertid väsentlig konfundering kopplat till diabetessvårighetsgrad. Vid analys av patienter som redan använder metformin minskade de relativa riskkvoterna markant (RR 1,24 vid fem år), vilket tyder på att observerade skillnader delvis förklaras av sjukdomsstyrka snarare än läkemedlet. För inköpschefer och regulatoriska specialister kräver dessa fynd klarare riskklassificering och noggrann patient- och läkemedelsval vid typ 2-diabetes, men det absoluta antalet fall är lågt.

A sweeping analysis of 232 million people over 44 years reveals a fundamental divergence: obesity growth has plateaued in high-income countries but continues accelerating in low- and middle-income nations. The finding reshapes how global health agencies, insurers, and food companies must allocate resources and plan product strategies in emerging markets.EN

A major Swedish study quantifies for the first time how often thiazide diuretics—among the most prescribed hypertension treatments worldwide—trigger severe low sodium levels, with women and elderly patients at significantly higher risk. The findings could reshape clinical guidelines and force pharmaceutical companies and health systems to reconsider prescribing practices for millions of patients.EN

Researchers have identified how variations in people's genes affect their ability to develop protective antibodies against influenza. The finding suggests that one-size-fits-all flu vaccines may miss people with certain genetic profiles, pointing toward personalized vaccine strategies that could improve protection across diverse populations.EN

Genetic analysis of 13 Islamic-period burials from Ibiza (950-1150 CE) documents direct evidence of sub-Saharan African presence on European islands centuries ago, linked to documented slave and military networks. The findings reshape understanding of medieval migration patterns and reveal how pathogens—including leprosy—spread across continents, with implications for how historians and policymakers interpret trade-driven cultural exchange and disease ecology.EN

A major Swedish study tracking thousands of children into adulthood found that being metabolically healthy doesn't protect obese kids from future diabetes, hypertension, and other serious conditions. The finding challenges current clinical practice, which often deprioritizes treatment for obese children without immediate metabolic warning signs—potentially affecting treatment guidelines and healthcare resource allocation worldwide.EN

Vitamin K-profylax till nyfödda minskar blödningsrisken drastiskt — men allt fler föräldrar vägrar behandlingen. Svenska data från över 2 miljoner födslar mellan 2003 och 2021 visar att andelen nyfödda utan intramuskulär vitamin K steg från 0,66 procent år 2006 till 1,50 procent 2021. Barn utan profylax hade 1,5 gånger högre risk för blödning under första levnadshålvåret och nästan 3 gånger högre risk för intrakraniell blödning jämfört med behandlade barn. Karolinska Institutet genomförde studien med data från svenska medicinska register. För vårdgivare och regionledning innebär detta ett regulatoriskt och kliniskt behov att återkommunicera vitalet i denna profylax — ökningen av vägran motsäger den etablerade evidensen. Tidshorisont för interventioner är omedelbar för att förhindra alvarliga komplikationer.

Forskare vid Lund University och National Autonomous University of Mexico har utvecklat en höggenomströmnings-proteinanalys direkt från rutinhistologiska vävnadsprover, utan tidigare tids- och arbetskrävande förbehandling. Metoden analyserade 40 melanomfall och identifierade över 8 200 proteingrupper per tumor. Akral lentiginös melanom — en ovanlig, aggressiv hudcancerform — uppvisade karakteristisk proteinprofil med minskad ATP5IF1-nivå, en central regulator av mitochondriell energiproduktion. Detta samband indikerar omställning från normal cellrespiration till ökad glukosförbranning, en erkänd överlevnadsmekanism för cancerceller. Metodens format — 96-brunnsplatta, automatiserad — möjliggör retrospektiv analys av befintliga vävnadsarkiv utan nya provsamlingar. För sjukhuspatologer och inköpschefer innebär detta potential att snabbt klassificera melanomsubtyppr och identifiera behandlingsmål. Lund Universitys deltagande stärker svensk MedTech-position inom diagnostik.

Adjuvant pertuzumab är rekommenderat av ESMO och NCCN för HER2-positiv bröstcancer med lymfkörtelmetastaser, men används inte i Sverige på grund av kostnadseffektivitetsbetäckningar. En nationell svenska kohortanalys av 3 495 patienter med primär operation och 465 med neoadjuvant behandling visar att patientpopulationen för adjuvant pertuzumab minskar när neoadjuvant terapi blir vanligare. Tioårsöverlevnaden var 71,6 procent i den primärt opererade gruppen respektive 92,3 procent bland patienter som uppnådde patologisk komplett respons efter neoadjuvant trastuzumab. Tumörstorlek och lymfkörtelstadium prognostiserade självständigt, medan östrogenreceptivitet korrelerade med sen recidiv. För inköpschefer och budgetar inom regionvård är fynnena relevanta: växande andel patienter får neoadjuvant terapi med betydligt bättre utfall, vilket kan förskjuta behovet av adjuvant pertuzumab och påverka långsiktiga medicinkostnader och behandlingsplaneringen.

Researchers found that laypeople responding to traumatic injuries face cognitive barriers that training programs largely ignore, despite widespread adoption of civilian hemorrhage control initiatives. The findings suggest that first-aid curricula and public health campaigns may need fundamental redesign to account for stress, perception, and decision-making under extreme pressure.EN

A major Swedish study finds that adverse childhood experiences significantly increase the risk of treatment-resistant depression — a form that doesn't respond to typical antidepressants. The finding, which accounts for genetic factors, has implications for how psychiatrists diagnose and treat millions of patients and could reshape mental health policy and pharmaceutical development priorities.EN

Researchers have identified the exact molecular pathway that causes joint pain in arthritis, opening a direct route to targeted pain relief without broad immunosuppression. The finding could reshape treatment strategies for the millions of arthritis patients who suffer debilitating pain despite existing anti-inflammatory drugs.EN

Scientists now understand the immune system as a sophisticated biosensor that simultaneously manages muscle recovery, coordinates post-exercise adaptation, and signals when an athlete's body is under stress. This systems-level view could reshape how teams monitor athlete health and manage injury risk, especially as wearable technology makes personalized immune tracking feasible for the first time.EN

A major Swedish study tracking nearly 1 million women for up to 18 years found the quadrivalent HPV vaccine significantly reduces invasive cervical cancer risk—reinforcing the case for vaccination programs. The findings matter for public health budgets, screening program costs, and vaccine hesitancy debates as governments weigh prevention versus treatment spending.EN