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Science News Archive August 2022 - Page 5


Page 5 of 38

Researchers develop equations to prevent the collapse of our globe’s most imperiled ecosystems

A team led by Jianxi Gao developed equations to measure and compare distances to tipping points across various mutualistic systems, allowing for the triage of declining ecosystems. This method enables the identification of areas that need intervention most urgently, providing a critical sense of urgency to mobilize resources.

SourceRensselaer Polytechnic Institute·JournalNature Ecology & Evolution·TypeComputational simulation/modeling·DateAug 29, 2022

Full-dose anticoagulation treatment prevented blood clots in COVID-19 patients

A clinical trial has shown that full-dose anticoagulation therapy is more effective than standard-dose prophylactic anticoagulation in preventing blood clotting complications in COVID-19 patients. The study found a significant reduction in venous or arterial clotting complications among patients who received full-dose treatment.

SourceBrigham and Women's Hospital·JournalCirculation·TypeRandomized controlled/clinical trial·DateAug 29, 2022

State-level earned income tax credit linked to reduction in high-risk HIV behavior among single mothers

A 21% relative risk reduction in reported high-risk HIV behavior was found for single mothers with a State-level Earned Income Tax Credit (SEITC) of 10% or above the Federal EITC. A 10 percentage-point increase in SEITC was also linked to a 38% relative reduction in high-risk behavior.

SourceUniversity of California - Los Angeles Health Sciences·JournalAIDS and Behavior·TypeData/statistical analysis·DateAug 29, 2022

Time’s arrow

Researchers found that brief rapamycin exposure in early adulthood can prevent age-related decline and extend lifespan. The study used fruit flies and mice to test the effects of short-term drug administration, showing protection against intestinal pathology and increased health span.

SourceMax Planck Institute for Biology of Ageing·JournalNature Aging·TypeExperimental study·DateAug 29, 2022

Early plasma antigen levels predict illness severity and clinical outcomes in hospitalized patients with COVID-19

A large cross-sectional study found that baseline plasma antigen levels are highly associated with both the severity of pulmonary illness and clinically important patient outcomes in hospitalized COVID-19 patients. Higher antigen levels were linked to increased risk of pulmonary worsening and delayed hospital discharge.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeObservational study·DateAug 29, 2022

Study reports blocking key enzyme boosts anti-cancer T-cell responses and resistance to immunosuppression

Researchers at LSU Health New Orleans have identified a critical immunosuppressive pathway and developed an experimental inhibitor to protect T-cells from weakening. The CBL-B inhibitors show great potential in enhancing the efficacy of cancer immunotherapy, making patients' T-cells more effective in killing cancer cells.

SourceLouisiana State University Health Sciences Center·JournalFrontiers in Immunology·TypeExperimental study·DateAug 29, 2022

New study from National Institutes of Health RECOVER initiative finds post-acute COVID-19 in children less common than in adults but more frequent than hospitalization rates for acute COVID-19

A new study from the National Institutes of Health RECOVER initiative found that post-acute COVID-19 in children is less common than in adults, but more frequent than hospitalization rates for acute COVID-19. Children with medical complexity and those younger than five years old are at higher risk of long COVID-19.

SourceChildren's Hospital Colorado·JournalJournal of the American Medical Association·TypeData/statistical analysis·DateAug 29, 2022

Water flouridation: Effective prevention for tooth decay and a win for the environment - Trinity research

A new study by Trinity College Dublin researchers shows that water fluoridation has the lowest environmental impact among community-level caries prevention programmes, offering a sustainable solution to prevent dental decay. The study also highlights its cost-effectiveness and ability to reduce disability-adjusted life years.

SourceTrinity College Dublin·JournalBDJ·TypeData/statistical analysis·DateAug 29, 2022

Bacteria provide immunity against giant viruses

Researchers found that intracellular bacteria known as symbionts protect their host amoebae against giant viruses. This discovery suggests a positive effect of the bacterial symbionts on the ecosystem, influencing the flow of nutrients in food webs and potentially impacting ecosystem dynamics.

SourceUniversity of Vienna·JournalProceedings of the National Academy of Sciences·DateAug 29, 2022

A perfect trap for light

Researchers from TU Wien and Hebrew University develop 'light trap' that allows complete absorption of light in thin layers using mirrors and lenses. The system works by steering the light beam into a circle and then superimposing it on itself, blocking any escape.

SourceThe Hebrew University of Jerusalem·JournalScience·TypeObservational study·DateAug 29, 2022

Discovery of the oldest visible planetary nebula hosted by a 500 million year old galactic cluster – a rare beauty with a hot blue heart

Researchers have found the oldest visible planetary nebula, a rare celestial jewel, hosted by a 500 million-year-old galactic cluster. The team determined that the PN has a 'kinematic age' of 70,000 years and estimates its progenitor star's mass and residual core's mass.

SourceThe University of Hong Kong·JournalThe Astrophysical Journal Letters·TypeObservational study·DateAug 29, 2022

X-shaped radio galaxies might form more simply than expected

A Northwestern University study reveals that X-shaped radio galaxies can form through a surprisingly simple process. The simulation, which tracked galactic gas far from the supermassive black hole, found that the galaxy's characteristic X-shape resulted from interaction between jets and infalling gas.

SourceNorthwestern University·JournalThe Astrophysical Journal Letters·TypeComputational simulation/modeling·DateAug 29, 2022

Dental biorhythms track weight gain in adolescents

Researchers found that adolescents with faster dental biorhythms (5-6 day cycle) weighed less and gained less weight over 14 months. Those with slower biorhythms (7-8 day cycle) produced the greatest weight gain, suggesting a link between tooth growth patterns and metabolic rate.

SourceUniversity of Otago·JournalCommunications Medicine·TypeCase study·DateAug 29, 2022

Research Brief: Study examines support programs for pregnant, postpartum people at state prisons

A study from the University of Minnesota Medical School examines support programs for pregnant and postpartum individuals in six US state prisons. The research highlights the importance of collaboration between program facilitators and prison sites in determining program success.

SourceUniversity of Minnesota Medical School·JournalJournal of Criminal Justice·TypeSystematic review·DateAug 29, 2022

How light and temperature work together to affect plant growth

A recent study published in Nature Communications has revealed that PIF7 and auxin proteins accelerate plant growth when exposed to warm temperatures and canopy shade. This discovery will help scientists predict how plants respond to climate change and increase crop productivity, enabling the development of more resilient crops.

SourceSalk Institute·JournalNature Communications·DateAug 29, 2022

Study reveals mechanism involved in rare pediatric brain cancer and points to possible treatment

Researchers have made significant breakthroughs in understanding the molecular mechanisms of supratentorial ependymoma, a rare and aggressive form of childhood brain cancer. By targeting the Hedgehog signaling pathway and primary cilia formation, scientists discovered new potential treatments that overcame resistance to existing drugs.

New diagnostic option for rare eye disease

Researchers at the University of Bonn have tested color-coded fundus autofluorescence as a supportive novel diagnostic method for posterior uveitis. The results indicate that this ratio can be very characteristic and helpful in differentiating various posterior uveitis subtypes.

SourceUniversity of Bonn·JournalScientific Reports·TypeExperimental study·DateAug 29, 2022