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Science News Archive 2025 - Page 374


Page 374 of 574

Another way longer paternity leaves help new parents

A longer paternity leave can improve the co-parenting relationship between moms and dads by making mothers less likely to discourage fathers' involvement. When fathers take more time off after their child is born, mothers relax unrealistic high standards for fathers' parenting and are less reliant on others' evaluations.

SourceOhio State University·JournalSex Roles·TypeObservational study·DateFeb 20, 2025

Recognizing the evolution of clinical syndrome spectrum progression in individuals with single large-scale mitochondrial DNA deletion syndromes (SLSMDS))

A retrospective natural history study of 30 patients with single large-scale mitochondrial DNA deletion syndromes (SLSMD) reveals a broader clinical presentation than previously thought. The study identifies key molecular details, including a recurrent deleted region in the MT-ND5 gene and elevated levels of biomarker GDF-15.

SourceChildren's Hospital of Philadelphia·JournalGenetics in Medicine·DateFeb 20, 2025

The inner ear of Neanderthals reveals clues about their enigmatic origin

A study led by Alessandro Urciuoli and Mercedes Conde-Valverde found that the morphological diversity of Neanderthals' semicircular canals is lower than previously thought, suggesting a bottleneck event. This challenges the theory that Neanderthals originated after a significant genetic diversity loss.

SourceInstitut Català de Paleontologia Miquel Crusafont·JournalNature Communications·TypeExperimental study·DateFeb 20, 2025

Politecnico di Milano and Georgia Tech unveil new scenarios for asteroid deflection

Researchers from Politecnico di Milano and Georgia Tech analyzed NASA's DART mission to asteroid Dimorphos, revealing a viable mechanism for ejecta evolution and understanding the impact of an asteroid's shape on deflection. The studies suggest that sending multiple smaller impactors can increase the asteroid push while reducing costs.

SourcePolitecnico di Milano·JournalNature Communications·TypeObservational study·DateFeb 20, 2025

New ACS study shows cancer mortality rates among Black people declining, but remain higher than other racial and ethnic groups

According to a new ACS study, cancer mortality rates among Black people have declined by 49% since 1991, with similar declines in men and women. However, these disparities persist, with Black individuals facing a higher risk of cancer death for various cancers and lower survival rates compared to other racial and ethnic groups.

SourceAmerican Cancer Society·JournalCA A Cancer Journal for Clinicians·DateFeb 20, 2025

Daily cannabis use linked to public health burden

A new study at George Washington University suggests daily cannabis use is associated with a syndrome that causes severe symptoms, including pain and repeated hospital trips. The condition, cannabinoid hyperemesis syndrome, affects individuals who start using cannabis in their teens and can lead to costly medical issues.

SourceGeorge Washington University·JournalAnnals of Emergency Medicine·DateFeb 20, 2025

Deep Nanometry reveals hidden nanoparticles

Deep Nanometry enables high-speed analysis of nanoparticles, detecting even trace amounts of rare particles like extracellular vesicles indicative of colon cancer. This technique has potential applications in various fields including vaccine development and environmental monitoring.

SourceUniversity of Tokyo·JournalNature Communications·TypeExperimental study·DateFeb 20, 2025

Unveiling the intricate mechanisms behind oxysterol-induced cell death

Researchers at Doshisha University reveal that 25-hydroxycholesterol causes a specific type of cell death called ferroptosis, which could contribute to various diseases. The study identifies two key mechanisms by which 25-OHC induces ferroptosis, including inhibition of cellular pathways and disruption of antioxidant systems.

SourceDoshisha University·JournalFree Radical Biology and Medicine·TypeExperimental study·DateFeb 20, 2025

A new gene identified in the search for a therapy to treat malignant cardiac arrythmia

Researchers have discovered a novel gene therapy that can reverse conduction slowing and prevent cardiac arrhythmias by introducing the SCN10a-short gene into heart muscle cells. The treatment has shown promise in animal models and human cell studies, offering a potential solution for millions affected by arrhythmias worldwide.

SourceAmsterdam University Medical Center·JournalEuropean Heart Journal·TypeRandomized controlled/clinical trial·DateFeb 20, 2025

Unique composite architecture of phosphor-in-glass film coated on different heat-conducting substrates for high-brightness laser lighting

A new type of phosphor-in-glass film converter on heat-conducting substrates has been developed to improve the performance and efficiency of high-brightness laser lighting. The researchers found that the converters with different substrates have varying effects on heat transfer, light transport, and luminescence saturation.

SourceTsinghua University Press·JournalJournal of Advanced Ceramics·DateFeb 19, 2025

The first comprehensive field study on Critical Height Sampling (CHS) – A model-free method for Forest Volume Estimation

A new field study on CHS suggests that this approach could revolutionize forest stand volume estimation, providing consistent results across varying environmental conditions. The method eliminates potential biases from traditional methods and offers efficiency advantages in terms of measurement time.

SourceTsinghua University Press·JournalForest Ecosystems·DateFeb 19, 2025

About 740,000 global deaths from suicide occur annually--that's one death every 43 seconds

The study found that global age-standardized mortality rate for suicide declined by nearly 40% from 1990 to 2021, but progress is not universal, with four regions reporting increases in suicide rates. Males were more than twice as likely to die by suicide than females, but females were 49% more likely to attempt it.

SourceInstitute for Health Metrics and Evaluation·JournalThe Lancet Public Health·DateFeb 19, 2025

Macrophages express high level of Spp1, linking the environmental particle pollution exposure and the development of emphysema - an important finding for COPD

Macrophages expressing high Spp1 levels are found in emphysema patients and those exposed to cigarette smoke or soot-like particles. This study highlights Spp1 as a crucial mediator of environmental particle pollution-related COPD development, offering potential preventive targets.

New toolkit empowers healthcare providers with evidence-based strategies for childhood obesity prevention and treatment

The Childhood Obesity Prevention, Evaluation and Treatment Toolkit provides healthcare providers with practical guidance for preventing, evaluating, and treating childhood obesity. The toolkit is grounded in scientific evidence and offers actionable treatment approaches for children and adolescents dealing with overweight and obesity.

Racism in medicine - are things getting better?

Despite increased efforts to address racism, underreporting remains a significant issue, particularly on clinical placements. Initiatives are transforming workforce experience and representation, but true equity will take time to achieve.

SourceBMJ Group·JournalThe BMJ·TypeCommentary/editorial·DateFeb 19, 2025

Fitness apps fuelling disordered eating

A systematic review of 38 studies found that frequent use of health and fitness apps is associated with problematic habits related to food and exercise. The research highlights the need for app developers to consider the psychological impacts of these tools on users' mental health.

SourceFlinders University·JournalBody Image·TypeSystematic review·DateFeb 19, 2025

Duke-NUS study targets proteins to reverse lung scarring

Scientists have pinpointed two proteins in immune cells that, when blocked, can significantly reduce lung tissue scarring and restore regeneration. Blocking YAP and TAZ can curb scar formation by dampening inflammation, maintaining a healthy immune cell ratio, and disrupting their communication with nearby cells.

SourceDuke-NUS Medical School·JournalEuropean Respiratory Journal·TypeExperimental study·DateFeb 19, 2025