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Science News Archive December 2023 - Page 28


Page 28 of 29

Studies help explain why some prostate cancers become resistant to hormone therapy

Two studies led by UCLA researchers reveal how cancer cells use energy to survive and grow, shedding light on why some prostate cancers become resistant to hormone therapy. The findings highlight the importance of considering cell metabolism in developing new cancer treatments, particularly those targeting the androgen receptor.

Eating disorder hospitalizations on the rise, affecting 'atypical' groups the most

A new study reveals a disproportionate increase in pediatric eating disorder hospitalizations, particularly among males, younger teens, and those with eating disorders other than anorexia or bulimia. Hospitalizations rose by 139% over 17 years, with the greatest increases seen for these atypical groups.

SourceInstitute for Clinical Evaluative Sciences·JournalJAMA Network Open·TypeObservational study·DateDec 4, 2023

New study maps ketamine's effects on brain

A new study published in Cell Reports mapped ketamine's effects on the brains of mice, revealing widespread structural changes in the dopamine system after repeated use. The findings suggest that targeting specific areas of the brain with ketamine therapy could minimize unintended effects.

SourceColumbia University·JournalCell Reports·TypeExperimental study·DateDec 4, 2023

Unravelling the mechanism of urticaria from eruption shapes

A study by Kyoto University researchers uses hierarchical mathematical modeling to analyze the shapes of skin eruptions and link them to the in vivo pathological dynamics of CSU. The Criteria for Classification of Eruption Geometry (EGe criteria) was developed, demonstrating high reliability among dermatologists.

SourceInstitute for the Advanced Study of Human Biology (ASHBi), Kyoto University·JournalCommunications Medicine·TypeComputational simulation/modeling·DateDec 4, 2023

New study: deep sea sensor reveals that corals produce reactive oxygen species

A new study published in PNAS Nexus reveals that deep-sea corals and sponges produce the ROS superoxide, a highly reactive compound with previously unknown effects on ocean life and chemistry. The researchers used a one-of-a-kind deep-sea chemiluminescent sensor to detect superoxide in water closely surrounding corals.

SourceWoods Hole Oceanographic Institution·JournalPNAS Nexus·TypeExperimental study·DateDec 4, 2023

Most adults eligible for statins for prevention are not using them

According to a new study published in Annals of Internal Medicine, most adults who qualify for statin use for primary prevention are not receiving them. The study found that despite increased overall statin use over time, only 35% of eligible adults were taking statins between 2013 and 2018. The researchers suggest that innovative effo...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateDec 4, 2023

December issues of APA journals cover childhood resilience and adult outcomes, genetics and postpartum depression, increasing rates of suicide among Black women, and more

The December issues of The American Journal of Psychiatry and Psychiatric Services explore postpartum depression, responses to stress in adulthood, and adversity in children. APA highlights increased rates of suicide among Black women, shedding light on childhood resilience and genetics.

SourceAmerican Psychiatric Association·JournalAmerican Journal of Psychiatry·DateDec 4, 2023

Endovascular catheter opens blocked arteries deep within lungs, researchers at the Lewis Katz School of Medicine at Temple University report

Researchers at Temple University Health System report that the BASHIR Endovascular Catheter reduces blockages in lung arteries and correlates with improved right ventricle function, suggesting better survival outcomes. The catheter also shows significantly lower bleeding rates compared to other devices.

SourceTemple University Health System·JournalJACC Advances·DateDec 4, 2023

Japan's first multicenter investigator-initiated clinical trial of patients with mild cognitive impairment: Results of the COMCID study

The COMCID study demonstrates the safety of cilostazol in patients with MCI, but shows no efficacy in preventing disease progression. However, treatment with cilostazol increased blood concentrations of albumin and β-amyloid complex, suggesting a potential role in clearing β-amyloid from the brain.

SourceNational Cerebral and Cardiovascular Center·JournalJAMA Network Open·DateDec 4, 2023

Investigation of degradation mechanism for all-solid-state batteries takes another step toward commercialization

Researchers at KIST identified degradation factors causing rapid capacity degradation and shortened lifespan in all-solid-state batteries. The team found that cracking of the cathode material, irreversible phase transformation, and lithium consumption contribute to overall cell capacity reduction.

SourceNational Research Council of Science & Technology·JournalAdvanced Energy Materials·DateDec 4, 2023

10 billion year, 50,000 light-year journey to black hole

Astronomers discover star S0-6 with chemical composition similar to small galaxies outside Milky Way, suggesting extragalactic origin. The star, 10 billion years old, has traveled over 50,000 light-years from its birthplace to reach vicinity of Sagittarius A*, raising questions about its past and possible companions.

SourceNational Institutes of Natural Sciences·JournalProceedings of the Japan Academy Series B·TypeObservational study·DateDec 4, 2023

Polarized hetero-structured luminant: The “marriage” of 2D materials and 0D quantum dots

Researchers developed an all-inorganic nano-heterostructure luminant with enhanced sensitivity, stability, and efficiency, paving the way for multifunctional optical control devices. The 0D/2D configuration enables polarized blue fluorescence and multifunctional capabilities.

Pioneering the future: An innovative approach to plant synthetic genomics

A new bottom-up approach to genome synthesis in multicellular plants is proposed using the model moss Physcomitrium patens. The study discusses challenges such as genome assembly and plant transformation, highlighting recent breakthroughs and limitations that must be overcome for wider application.

SourceNanjing Agricultural University The Academy of Science·JournalBioDesign Research·TypeExperimental study·DateDec 3, 2023

Generative model unveils secrets of material disorder

Scientists at National University of Singapore developed a hybrid generative machine learning model to explore structural disorders in complex materials. The model unveiled pathways to material disorder, shedding light on factors affecting piezoelectric response. It also found evidence that domain boundaries maximize entropy.

SourceNational University of Singapore·JournalScience Advances·TypeComputational simulation/modeling·DateDec 3, 2023

Study identifies peptide as key mediator in heavy alcohol drinking

A study from Boston University School of Medicine identifies pituitary adenylate cyclase activating polypeptide (PACAP) as a critical player in heavy alcohol consumption. PACAP's action in the brain's bed nucleus of the stria terminalis (BNST) region is found to be linked to increased stress responses and excessive drinking behavior.

SourceBoston University School of Medicine·JournaleNeuro·TypeExperimental study·DateDec 1, 2023

Aging societies more vulnerable to collapse

Pre-modern states faced a steeply increasing risk of collapse within two centuries after formation, driven by environmental degradation, economic inequality, and other internal mechanisms. The research highlights the need to understand these internal processes that contribute to state demise.

SourceSanta Fe Institute·JournalProceedings of the National Academy of Sciences·DateDec 1, 2023

Eminent scientists say a child-centric approach is the blueprint to improve communities

Researchers at Fralin Biomedical Research Institute present comprehensive findings from the Abecedarian Project on early childhood education and development. The study, spanning five decades, shows that coordinated education, healthcare, and social services can improve community quality of life and attract businesses.

SourceVirginia Tech·JournalMedical Research Archives·TypeRandomized controlled/clinical trial·DateDec 1, 2023

ADA Forsyth scientists work to bring tissue regeneration to replace root canal treatment

Researchers at ADA Forsyth have discovered the regenerative properties of Resolvins, specifically RvE1, which promotes pulp regeneration and reduces bacterial invasion in dental pulp. The technology has far-reaching potential for regenerative medicine beyond oral health, including growing bones in other parts of the body.

SourceForsyth Institute·JournalJournal of Dental Research·TypeExperimental study·DateDec 1, 2023

Can preeclampsia be prevented?

A study published in Science Advances found that abnormal cell stress in the placenta's syncytiotrophoblast layer may lead to preeclampsia. Researchers also developed a mouse model to demonstrate the effects of this stress, showing similar signs of high blood pressure and kidney damage.

SourceMedical College of Wisconsin·JournalScience Advances·TypeExperimental study·DateDec 1, 2023

CHOP researchers discover deep structural biology connections that help improve CAR therapy

Researchers have identified 'backbones' in HLA complexes that link to peptide-centric CARs, allowing for targeted therapies across different variants and tumor types. This breakthrough enables the design of more efficient CAR therapies for a broader range of patients with complex and difficult-to-treat cancers.

SourceChildren's Hospital of Philadelphia·JournalScience Immunology·TypeExperimental study·DateDec 1, 2023

When physics meets biology: prion protein orchestrates liquid-liquid phase separation with copper

Researchers discovered that prion protein and copper form sticky droplets under oxidative stress, leading to abnormal solid formation. The study highlights the biological significance of liquid-liquid phase separation in regulating copper homeostasis by PrP.

Antiviral therapy favors a lower risk of liver cirrhosis in HBeAg-negative chronic hepatitis B with normal alanine transaminase and HBV DNA positivity

A comprehensive study finds that continuous antiviral therapy significantly reduces the risk of liver nodules and cirrhosis in HBeAg-negative CHB patients. Patients with high HBV DNA levels also show a significant decrease in liver cirrhosis risk with ongoing treatment.

SourceXia & He Publishing Inc.·JournalJournal of Clinical and Translational Hepatology·DateDec 1, 2023

Pathogens use force to breach immune defenses, study finds

Researchers at Indiana University discovered that pathogens can apply physical forces during entry into host cells, evading degradation and surviving intracellularly. This finding suggests targeting pathogen movement may be a new way to combat infection inside cells.

SourceIndiana University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateDec 1, 2023

UAB researchers demonstrate how genetics play a role in the development of hypertension

A recent study published in Circulation: Genomic and Precision Medicine reveals that genetics significantly contribute to the sex differences in hypertension development. The research found that females with high genetic risk scores had a higher risk of hypertension compared to males, while low-risk females had a lower risk than males.

SourceUniversity of Alabama at Birmingham·JournalCirculation·TypeData/statistical analysis·DateDec 1, 2023

A new possible explanation for the Hubble tension

Researchers from Universities of Bonn and St. Andrews propose an alternative theory of gravity as the cause of the discrepancy in measured values of the Hubble-Lemaitre constant. This 'modified Newtonian dynamics' (MOND) theory predicts the existence of regions with lower matter density, which would explain the observed deviations.

SourceUniversity of Bonn·JournalMonthly Notices of the Royal Astronomical Society·TypeComputational simulation/modeling·DateDec 1, 2023

Disability, Politecnico di Milano experiments with AI to make historic city centers accessible

Researchers used machine learning and mobile mapping systems to analyze the town of Sabbioneta's streets and pavements, identifying accessible trajectories and paths for citizens with motor disabilities. The study demonstrated the effectiveness of AI in assessing physical accessibility in historic urban contexts.

SourcePolitecnico di Milano·JournalInternational Journal of Applied Earth Observation and Geoinformation·TypeMeta-analysis·DateDec 1, 2023