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Life sciences and medical news including gerontology, nutrition, and preventive health.

Global Debate Continues over Fair Allocation of Donor Hearts
NewsApr 25, 2026

Global Debate Continues over Fair Allocation of Donor Hearts

At the ISHLT’s 46th annual meeting, experts highlighted the global struggle to allocate scarce donor hearts. Approximately 7,000 transplants occur each year while 10‑15% of wait‑list patients die before receiving an organ. Dr. Guillaume Coutance compared status‑based systems, used by...

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New Cytometer Measures Cell Stiffness to Improve Disease Diagnosis
NewsApr 25, 2026

New Cytometer Measures Cell Stiffness to Improve Disease Diagnosis

Researchers at Brown University and NIST introduced a mechanophenotyping cytometer that gauges cell stiffness via time‑of‑flight measurements in microfluidic channels. The device can analyze 60–100 cells per second, dramatically outpacing atomic force microscopy’s one‑cell‑per‑30‑seconds rate. By linking travel time to...

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Natural Compound Obakulactone Shows Therapeutic Potential for Rheumatoid Arthritis
NewsApr 25, 2026

Natural Compound Obakulactone Shows Therapeutic Potential for Rheumatoid Arthritis

Researchers have identified obakulactone, a natural tetracyclic triterpenoid from Phellodendri cortex, as a promising therapeutic for rheumatoid arthritis (RA). In a CFA‑induced rat model, oral dosing (50‑200 mg·kg⁻¹·d⁻¹) over 21 days markedly reduced joint swelling, restored cartilage integrity, and modulated immune...

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Brain-Gut Health Initiative Supports AI-Assisted Diagnosis of Psychiatric Disorders
NewsApr 25, 2026

Brain-Gut Health Initiative Supports AI-Assisted Diagnosis of Psychiatric Disorders

Chinese researchers launched the Brain‑Gut Health Initiative (BIGHI), a prospective cohort of more than 1,200 adults with schizophrenia, depression, bipolar disorder and healthy controls. The study integrates neuroimaging, EEG, blood panels, and gut‑microbiome sequencing to uncover multi‑system biomarkers. Early results...

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Study Finds Different Types of Crystalloid Fluids Are Equally Effective for Pediatric Sepsis
NewsApr 25, 2026

Study Finds Different Types of Crystalloid Fluids Are Equally Effective for Pediatric Sepsis

A multinational trial involving more than 9,000 children with suspected septic shock found that balanced crystalloid fluids and 0.9% saline are equally effective at preventing major adverse kidney events within 30 days. MAKE30 occurred in 3.4% of the balanced‑fluid group...

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Ultra-Processed Foods Linked to Measurable Drops in Human Attention Span
NewsApr 25, 2026

Ultra-Processed Foods Linked to Measurable Drops in Human Attention Span

A new cross‑sectional study of over 2,100 Australian adults links higher consumption of ultra‑processed foods (UPFs) to measurable declines in attention span, even among those following otherwise healthy diets. Researchers found that a 10 percent increase in UPF intake—roughly one extra...

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Losing Weight Improves Heart Muscle Contraction in People with Obesity and Heart Failure
NewsApr 25, 2026

Losing Weight Improves Heart Muscle Contraction in People with Obesity and Heart Failure

A Johns Hopkins‑led NIH study published in Science shows that severe obesity (BMI > 40) markedly weakens heart‑muscle cell contraction in patients with heart‑failure with preserved ejection fraction (HFpEF). The dysfunction is linked to excess phosphorylation of the contractile protein troponin‑I. In...

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Intercellular Heme Transfer Pathway Sustains Red Blood Cell Production Under Stress
NewsApr 25, 2026

Intercellular Heme Transfer Pathway Sustains Red Blood Cell Production Under Stress

University of Maryland researchers identified the heme‑responsive gene 1 (HRG1) as a critical transporter that allows late‑stage erythroblasts to import heme from neighboring cells. Using single‑cell RNA sequencing and HRG1 knockout mice, they showed that loss of HRG1 impairs stress‑induced...

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New AI Chatbot Uses Medical Protocols to Guide Patient Care Decisions.
NewsApr 25, 2026

New AI Chatbot Uses Medical Protocols to Guide Patient Care Decisions.

UC San Diego researchers unveiled a multi‑agent AI chatbot that uses American Medical Association flowcharts to guide self‑triage. The system matches patient symptoms to protocol‑based questions, translating clinical language into lay terms. In over 30,000 simulated dialogues it chose the...

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Fibroblast Subtype Found to Be Essential for Coordinating Immune Cells Within Lymph Nodes
NewsApr 25, 2026

Fibroblast Subtype Found to Be Essential for Coordinating Immune Cells Within Lymph Nodes

Researchers at the University of Lausanne identified a specialized fibroblast subtype (MAdCAM1⁺) that produces the chemokine Ccl19, directing cytotoxic T lymphocytes to the central region of lymph nodes. The fibroblasts’ activity is governed by a Notch2‑RBPj signaling cascade, with Jagged‑1...

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Vitamin D May Prevent Diabetes in People with Certain Genes
NewsApr 23, 2026

Vitamin D May Prevent Diabetes in People with Certain Genes

A new analysis of the D2d trial shows that a daily 4,000 IU vitamin D supplement reduces the risk of developing type 2 diabetes by 19 % in prediabetic adults who carry the AC or CC variants of the vitamin D receptor gene, while those...

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Google Search Trends Reflect a Shift Toward Minimally Invasive Heart Care
NewsApr 23, 2026

Google Search Trends Reflect a Shift Toward Minimally Invasive Heart Care

New research presented at the SCAI 2026 Scientific Sessions shows public interest in transcatheter aortic valve replacement (TAVR) surged 340% from 2015 to 2025, while searches for surgical aortic valve replacement (SAVR) fell 42%. The spike aligns with clinicians doubling...

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Drug-Coated Balloons Reduce the Need for Permanent Heart Stents
NewsApr 23, 2026

Drug-Coated Balloons Reduce the Need for Permanent Heart Stents

A sub‑study of the SELUTION DeNovo trial presented at the SCAI 2026 meeting shows that a sirolimus‑eluting balloon (SEB) can treat NSTEMI and unstable angina with outcomes comparable to drug‑eluting stents (DES). The analysis of 1,089 patients found one‑year target‑vessel...

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Early Heart Pump Use Improves Survival in Patients Experiencing Cardiogenic Shock
NewsApr 23, 2026

Early Heart Pump Use Improves Survival in Patients Experiencing Cardiogenic Shock

The CERAMICS registry, a single‑arm study of 124 cardiogenic shock patients across 20 U.S. hospitals with on‑site mechanical circulatory support (MCS), showed that rapid Impella placement and PCI within roughly 75 minutes led to a 71% overall survival to discharge....

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Treatment Goals Guide Cardiogenic Shock Care More Often in Women
NewsApr 23, 2026

Treatment Goals Guide Cardiogenic Shock Care More Often in Women

The Northwell‑Shock Registry analysis of 1,374 AMI‑related cardiogenic shock patients revealed that women are less likely to undergo invasive coronary angiography (78% vs 86% in men). When angiography is performed, subsequent PCI rates are virtually identical between sexes. Deferral of...

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Specific Intestinal Fungi Play Role in the Pathogenesis of MASLD and Cardiovascular Disease
NewsApr 23, 2026

Specific Intestinal Fungi Play Role in the Pathogenesis of MASLD and Cardiovascular Disease

The study examined 103 patients with metabolic dysfunction‑associated steatotic liver disease (MASLD) and found that higher fecal Candida albicans levels were linked to increased coronary artery calcification, especially among those with cirrhosis. Liver stiffness measured by magnetic resonance elastography correlated...

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Microplastics in the Liver May Drive Global Liver Disease Rates
NewsApr 23, 2026

Microplastics in the Liver May Drive Global Liver Disease Rates

Researchers at the University of Plymouth’s Centre of Environmental Hepatology have published a review in Nature Reviews Gastroenterology & Hepatology linking micro‑ and nanoplastic accumulation in the liver to oxidative stress, inflammation and fibrosis. The paper introduces the concept of...

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Tirzepatide Significantly Reduces Cardiovascular Risk in High-Risk Patients
NewsApr 23, 2026

Tirzepatide Significantly Reduces Cardiovascular Risk in High-Risk Patients

Two recent real‑world studies demonstrate that tirzepatide, a dual GIP/GLP‑1 receptor agonist, markedly lowers cardiovascular risk in high‑risk patients. In a propensity‑matched cohort of 1,281 type‑2 diabetics undergoing percutaneous coronary intervention, tirzepatide reduced mortality by 62% and cut major adverse...

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Researchers Identify High Rates of Untreated Hypertension in Young Veterans
NewsApr 22, 2026

Researchers Identify High Rates of Untreated Hypertension in Young Veterans

A new study in the Journal of the American Heart Association examined over 1.1 million post‑9/11 veterans, average age 33, and found that 45% meet clinical criteria for hypertension. Among those with high blood pressure, roughly half were never diagnosed and...

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Study Reveals Genetic Factors Influencing SYNGAP1 Encephalopathy Disease Severity
NewsApr 22, 2026

Study Reveals Genetic Factors Influencing SYNGAP1 Encephalopathy Disease Severity

A multicentre study of 44 Spanish patients with SYNGAP1 encephalopathy shows that disease severity is not dictated solely by the primary SYNGAP1 mutation. Researchers identified four previously unknown SYNGAP1 variants and demonstrated that the location of a mutation—particularly within the...

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Immunotherapy Drug Helps Bladder Cancer Patients Avoid Major Organ Removal
NewsApr 22, 2026

Immunotherapy Drug Helps Bladder Cancer Patients Avoid Major Organ Removal

A phase‑2 trial led by NYU Langone Health found that adding pembrolizumab (Keytruda) to standard chemotherapy, radiation, and surgery allowed 60% of patients with muscle‑invasive bladder cancer to avoid cystectomy for up to two years. The study, the largest of...

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Breast Milk Sugars Promote Beneficial Bacterial Balance in Infant Guts
NewsApr 22, 2026

Breast Milk Sugars Promote Beneficial Bacterial Balance in Infant Guts

A European team led by Prof. Lindsay Hall discovered that human milk oligosaccharides (HMOs) enable a mutualistic relationship between Bifidobacterium bifidum and Escherichia coli in infants. Bifidobacterium breaks down HMOs, releasing simple sugars that E. coli scavenges, while E. coli supplies cysteine...

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Rapid Blood Infection Test Fails to Improve Survival
NewsApr 22, 2026

Rapid Blood Infection Test Fails to Improve Survival

A large, open‑label randomized trial of 899 patients with gram‑negative bacteremia compared rapid antimicrobial susceptibility testing directly from positive blood cultures to standard sub‑culture testing. The rapid approach delivered susceptibility results in about 7.5 hours versus 44 hours for the conventional method,...

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New "Plug-and-Play" AI Outperforms Pathologists in Lymph Node Metastasis Detection
NewsApr 22, 2026

New "Plug-and-Play" AI Outperforms Pathologists in Lymph Node Metastasis Detection

HKUST researchers unveiled PRET, a plug‑and‑play AI pathology system that learns new cancer types from just one to eight annotated slides. The model achieved AUC scores above 97% on 15 of 20 benchmark tasks, including a perfect 100% for colorectal...

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New Algorithms Help Surgeons Make High-Stakes Transplant Decisions in Minutes
NewsApr 22, 2026

New Algorithms Help Surgeons Make High-Stakes Transplant Decisions in Minutes

Researchers at the ISHLT meeting unveiled AI tools designed to speed heart‑transplant decisions, aiming to cut the 15‑30 minute evaluation window. The flagship model, TOPHAT, analyzes 20 donor variables to predict a center’s likelihood of accepting a heart, while a...

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Muscle Energy Recovery May Explain Fatigue in Cancer Survivors
NewsApr 21, 2026

Muscle Energy Recovery May Explain Fatigue in Cancer Survivors

A pilot study using phosphorus‑31 magnetic resonance spectroscopy (31P‑MRS) measured how quickly skeletal‑muscle mitochondria restore energy after exertion in 11 cancer survivors. Older participants (≥65) recovered about 10% slower and showed weaker grip strength, higher self‑reported fatigue, and fewer daily...

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APC-Deficient Cancer Cells Rely on Single Enzyme for Survival
NewsApr 21, 2026

APC-Deficient Cancer Cells Rely on Single Enzyme for Survival

Researchers have identified aldehyde dehydrogenase 2 (ALDH2) as a critical survival factor for colorectal cancer cells lacking functional APC. Computational screening and lab experiments show that pharmacological inhibition of ALDH2, using agents such as disulfiram, sharply reduces proliferation and induces...

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Trial Shows Safety of Novel KIR-CAR T Therapy in Solid Tumors
NewsApr 21, 2026

Trial Shows Safety of Novel KIR-CAR T Therapy in Solid Tumors

A Phase I dose‑escalation trial of SynKIR‑110, a novel KIR‑CAR T therapy, demonstrated safety in nine patients with advanced ovarian cancer, mesothelioma or cholangiocarcinoma. The multi‑chain design uses NK‑cell receptors to provide an on/off switch, reducing T‑cell exhaustion and side...

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Skin-Conforming Electrodes Improve Comfort in Long-Term Heart Monitoring
NewsApr 21, 2026

Skin-Conforming Electrodes Improve Comfort in Long-Term Heart Monitoring

Researchers at NC State and UNC have created a skin‑conforming, gel‑free polymer electrode for ECG monitoring. The device incorporates a conductive polymer and surfactant into a POMaC elastomer, delivering adhesive, comfortable wear while matching the signal quality of commercial patches....

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WHO-Recommended Antibiotics Ineffective for Many Neonatal Sepsis Cases
NewsApr 21, 2026

WHO-Recommended Antibiotics Ineffective for Many Neonatal Sepsis Cases

Researchers from Oxford and a network of hospitals in Pakistan, Bangladesh and Nigeria presented the BARNARDS II study at ESCMID Global 2026, revealing that the WHO‑recommended first‑line antibiotics ampicillin plus gentamicin are likely effective against only 25 % of neonatal sepsis pathogens in...

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Personalized Bioelectrodes Improve Brain Signal Monitoring and Compatibility
NewsApr 17, 2026

Personalized Bioelectrodes Improve Brain Signal Monitoring and Compatibility

Penn State researchers have created 3D‑printed hydrogel bioelectrodes that are customized to an individual’s brain geometry using MRI‑derived models. The honeycomb‑inspired, stretchable design conforms to cortical gyri and sulci far better than conventional stiff, one‑size‑fits‑all probes, delivering higher‑quality electrical signals....

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Researchers Discover How Cell Membrane Composition Drives Cancer Proliferation
NewsApr 17, 2026

Researchers Discover How Cell Membrane Composition Drives Cancer Proliferation

MIT chemists have shown that a cell membrane rich in negatively charged lipids can lock the epidermal growth factor receptor (EGFR) into an over‑active state, driving uncontrolled cancer cell proliferation. Normal membranes contain about 15% of these lipids, but when...

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Scientists Find Unexpected Immune Pathways for mRNA Cancer Vaccines
NewsApr 17, 2026

Scientists Find Unexpected Immune Pathways for mRNA Cancer Vaccines

Scientists at Washington University demonstrated that mRNA cancer vaccines can elicit potent anti‑tumor T‑cell responses even when the classic cDC1 dendritic cell subset is absent. Using mouse models lacking cDC1, cDC2, or both, they showed that cDC2 cells also prime...

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Age Shapes Melanoma Progression and Immune Response
NewsApr 17, 2026

Age Shapes Melanoma Progression and Immune Response

Researchers at Fox Chase Cancer Center presented evidence that melanoma metastasis follows a non‑linear age curve in mice: low in young animals, peaking in middle‑aged subjects, and declining in very old mice. The pattern correlates with the abundance of protective...

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Key Gene Variants Tied to Developmental Dysplasia of the Hip and Osteoarthritis
NewsApr 17, 2026

Key Gene Variants Tied to Developmental Dysplasia of the Hip and Osteoarthritis

A multinational GWAS involving 350,000 European samples identified three genetic loci—COL11A2, CALN1, and TRPM7—shared between developmental dysplasia of the hip (DDH) and hip osteoarthritis (OA). Led by Dr. Ryosuke Yamaguchi and Dr. Chikashi Terao, the study also uncovered nine loci...

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New Study Highlights Fructose’s Unique Role in Metabolic Disease
NewsApr 17, 2026

New Study Highlights Fructose’s Unique Role in Metabolic Disease

A new Nature Metabolism review led by Richard Johnson reveals that fructose acts as a distinct metabolic signal, not merely an extra calorie. The authors show that fructose bypasses key regulatory steps, driving de novo lipogenesis, ATP depletion, and metabolites...

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Obesity, GLP-1s, and Metabolic Care
NewsApr 17, 2026

Obesity, GLP-1s, and Metabolic Care

In an interview, hVIVO’s Chief Medical Officer Professor Thomas Forst explains how GLP‑1 receptor agonists have reshaped obesity treatment by targeting metabolic dysfunction rather than just weight loss. He highlights that these drugs reduce cardiovascular events, improve renal outcomes and...

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Childhood Flu Infection Leaves Lasting Immune Imprint
NewsApr 17, 2026

Childhood Flu Infection Leaves Lasting Immune Imprint

A new study in Science Advances shows that the influenza strain first encountered in childhood creates a lasting immune imprint that shapes mortality risk throughout life. By analyzing U.S. death records from 1860 to 2020, researchers found that cohorts imprinted...

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New Lab-Grown Organoids Accurately Mimic Pediatric Brain Tumor Biology
NewsApr 16, 2026

New Lab-Grown Organoids Accurately Mimic Pediatric Brain Tumor Biology

Scientists at St. Jude Children’s Research Hospital have created patient‑derived tumor organoids and organoid xenografts that faithfully recapitulate the genetic, epigenetic and cellular landscape of pediatric brain tumors. The 3D models, validated with DNA methylation, bulk and single‑cell RNA sequencing, and...

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BMI Increases in Early Childhood May Reflect Muscle Growth, Not Fat
NewsApr 16, 2026

BMI Increases in Early Childhood May Reflect Muscle Growth, Not Fat

A study of 2,410 U.S. children from the 2021‑2023 NHANES cohort shows that while BMI rises during the classic adiposity rebound around age six, waist‑to‑height ratio continues to fall, indicating the BMI increase reflects lean‑tissue growth rather than excess fat....

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New Findings Explain Why Eccentric Training Prevents Common Sprinting Injuries
NewsApr 16, 2026

New Findings Explain Why Eccentric Training Prevents Common Sprinting Injuries

A nine‑week Nordic hamstring exercise program increased eccentric knee‑flexor strength by roughly 40% and lengthened biceps femoris fibers by about 25%, without changing individual sarcomere length. Ultrasound and motion‑capture data suggest the muscle adds sarcomeres in series, allowing fibers to...

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Researchers Discover How Stress Signals Weaken the Aging Immune System
NewsApr 16, 2026

Researchers Discover How Stress Signals Weaken the Aging Immune System

Aging hematopoietic stem cells (HSCs) lose regenerative capacity as stress signals activate the RIPK3‑MLKL pathway, causing mitochondrial damage without triggering cell death. Researchers from the University of Tokyo and St. Jude Children’s Research Hospital demonstrated that transient MLKL activation in mitochondria...

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Waters Debuts Industry-First Extended-Range MALS Detector for UHPLC/UPLC, Powering Rapid Characterization of Large Molecules
NewsApr 16, 2026

Waters Debuts Industry-First Extended-Range MALS Detector for UHPLC/UPLC, Powering Rapid Characterization of Large Molecules

Waters Corporation launched the omniDAWN™ Multi‑Angle Light Scattering (MALS) Photometer, the first extended‑range detector compatible with UHPLC and UPLC. The instrument covers particle radii from 50 nm to 500 nm, enabling absolute molar mass and size measurements for large biomolecules such as...

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Can Processed Meats Fit Into a Healthy Diet?
NewsApr 16, 2026

Can Processed Meats Fit Into a Healthy Diet?

A recent review in Animal Frontiers argues that processed meats provide high‑quality, complete protein and dense micronutrients, challenging blanket dietary restrictions. The authors note that protein digestibility and essential amino‑acid scores often exceed 100 %, while also highlighting the variability in...

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Are Healthy Foods Really Healthy? Nutrition Researchers Say Context Matters
NewsApr 15, 2026

Are Healthy Foods Really Healthy? Nutrition Researchers Say Context Matters

A recent opinion paper in Clinical Nutrition argues that the health impact of any food cannot be judged in isolation; it depends on what the food replaces on the plate. The authors contend that most nutrition meta‑analyses pool heterogeneous dietary...

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Lower-Protein Toddler Formula Does Not Reduce BMI at Age 2, Trial Finds
NewsApr 15, 2026

Lower-Protein Toddler Formula Does Not Reduce BMI at Age 2, Trial Finds

A multicenter European randomized trial (ToMI) compared lower‑protein (1.5 g/100 kcal) and higher‑protein (6.1 g/100 kcal) toddler formulas in 1,624 children. At 24 months, BMI z‑scores were statistically indistinguishable between groups, indicating no sustained impact on adiposity. However, the high‑protein cohort recorded higher weight and...

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Waist-to-Height Ratio Outperforms BMI in Predicting Hypertension Risk
NewsApr 15, 2026

Waist-to-Height Ratio Outperforms BMI in Predicting Hypertension Risk

A new study by the University of Eastern Finland and Rutgers University shows that waist‑to‑height ratio (WHtR) cut‑offs predict elevated blood pressure and hypertension more accurately than body mass index (BMI). Analyzing 19,124 U.S. participants from NHANES 2015‑2023, researchers found...

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Study Identifies New Genes Linked to Severe Pregnancy Sickness
NewsApr 15, 2026

Study Identifies New Genes Linked to Severe Pregnancy Sickness

USC researchers expanded the genetic landscape of hyperemesis gravidarum, identifying nine additional genes alongside the previously known GDF15, GFRAL, IGFBP7, and PGR. The genome‑wide association study analyzed 10,974 HG cases and 461,461 controls across diverse ancestries, the largest cohort to...

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Behavioral Design Project Aims to Reduce Benzodiazepine Overuse
NewsApr 15, 2026

Behavioral Design Project Aims to Reduce Benzodiazepine Overuse

A collaborative project between the Universitat Oberta de Catalunya (UOC) and Badalona Serveis Assistencials (BSA) is launching a behavioural‑design pilot to curb long‑term benzodiazepine use in primary‑care. The three‑month intervention, beginning in April at the CAP Martí i Julià centre,...

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