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Science News Archive 2021 - Page 421


Page 421 of 510

Nature: new compound for male contraceptive pill

Researchers at The Lundquist Institute have discovered a new compound called triptonide, which exhibits ideal male contraceptive effects in pre-clinical studies. Triptonide can be purified from a Chinese herb or produced through chemical synthesis and induces altered sperm with minimal motility, leading to male infertility in 3-4 weeks.

SourceThe Lundquist Institute·JournalNature Communications·DateMar 3, 2021

How to track the variants of the pandemic faster

Scientists highlight the need for sustainable collaboration frameworks and harmonization of health data practices to tackle the pandemic. Improved sequencing could enable better tracking of transmission and mutations, leading to more accurate estimates of R-number and improved understanding of mutational impacts.

SourceUniversity of Bern·JournalNature·DateMar 3, 2021

Tracking data reveals shared political responsibility for the conservation of albatrosses and petrel

Researchers analyzed tracking data of 5,775 birds across 39 species to estimate global political responsibility for their protection. The study found that many countries lack agreements with each other's breeding grounds, highlighting the need for international agreements to conserve these threatened seabirds.

Color blindness-correcting contact lenses

Researchers developed infusing contact lenses with gold nanoparticles to create a safer way to see colors for people with color blindness. The gold nanocomposite lenses improved red-green color perception in clinical trials without leaching dye, offering a potential solution for those struggling with the condition.

SourceAmerican Chemical Society·JournalACS Nano·DateMar 3, 2021

Tackling tumors with two types of virus

A Swiss research group has developed a novel cancer vaccine strategy utilizing two different viruses to stimulate the immune system against tumor cells. In animal experiments, this approach led to the elimination or slowing down of tumors in 20-40% of cases.

SourceUniversity of Basel·JournalCell Reports Medicine·DateMar 3, 2021

Influenza vaccine produces protective antibodies against diverse flu strains in animals

A nanoparticle-based vaccine has been shown to produce protective antibodies against multiple H1 and H3 influenza A viruses in nonhuman primates. The vaccine's broad immunity suggests it may provide long-term protection, offering a promising solution to the challenge of creating a universal flu vaccine.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateMar 3, 2021

Study: Bahamas were settled earlier than believed

Researchers at Texas A&M University discovered evidence of human settlement in the Bahamas around 1200-1300 A.D. using charcoal deposits from human fires thousands of years ago. The new settlers dramatically changed the landscape, leading to increased deforestation and loss of native species.

SourceTexas A&M University·JournalProceedings of the National Academy of Sciences·DateMar 3, 2021

Opioid overdose reduced in patients taking buprenorphine

Patients taking buprenorphine for opioid use disorder who also take benzodiazepines experience a 40% lower risk of overdose, according to research published in The American Journal of Psychiatry. This finding suggests that buprenorphine can protect patients from overdose even when taking benzodiazepines.

SourceWashU Medicine·JournalAmerican Journal of Psychiatry·DateMar 3, 2021

Researchers discover SARS-CoV-2 inhibitors

A research team has discovered two families of active substances that can block the replication of SARS-CoV-2 by targeting its main protease enzyme. The drug candidates show promise for therapeutic development, but extensive clinical trials are still required.

SourceUniversity of Bonn·JournalAngewandte Chemie International Edition·DateMar 3, 2021

Conquering the timing jitters

A team of scientists from Argonne National Laboratory developed a method to dramatically improve ultrafast time resolution achievable with X-ray free-electron lasers. This breakthrough enables new insights into the behavior of materials and chemical processes, allowing for more efficient designs and discoveries.

SourceDOE/Argonne National Laboratory·JournalNature Physics·DateMar 3, 2021

Bioinspired materials from dandelions

Researchers at the University of Trento have discovered that dandelion clocks can trap air when submerged in water, leading to the development of new materials that could be used in underwater operations. The discovery was made by students and professors who were inspired by a observation made by a high school student.

SourceUniversità di Trento·JournalMaterials Today Bio·DateMar 3, 2021

Researchers reveal process behind harmful glial cell change in motor neurone disease

Researchers at the Francis Crick Institute have identified the key cellular change that leads to harmful astrocytes in amyotrophic lateral sclerosis (ALS). The discovery could lead to new therapies to slow disease progression and is also relevant to other neurodegenerative diseases like Parkinson's and Alzheimer's. Understanding this c...

SourceThe Francis Crick Institute·JournalNucleic Acids Research·DateMar 3, 2021

Report: The Impact of the COIVD-19 pandemic on CUNY students

A recent survey found that the COVID-19 pandemic has taken a toll on the mental health and financial stability of approximately 274,000 City University of New York (CUNY) students. Over half reported experiencing depression and/or anxiety, with food insecurity and housing worries being strong predictors of anxiety/depression.

SourceCUNY Graduate School of Public Health and Health Policy·JournalJournal of Urban Health·DateMar 3, 2021

Study examines motives for dropping out of higher education

A new study analyzed reasons for university dropout, finding lack of interest in field of study and academic performance issues as key motivators. The research suggests implementing early warning systems and personalized counseling services to support students at risk.

SourceWiley·JournalEuropean Journal of Education·DateMar 3, 2021

Vaping marijuana associated with more symptoms of lung damage than vaping or smoking nicotine

A new University of Michigan study suggests that adolescents who vape cannabis are at greater risk for respiratory symptoms indicative of lung injury than those who smoke cigarettes or vape nicotine. The study found that vaping marijuana was associated with a stronger relationship between respiratory symptoms and asthma diagnosis.

SourceUniversity of Michigan·JournalJournal of Adolescent Health·DateMar 3, 2021