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Science News Archive 2021 - Page 409


Page 409 of 510

The 3Rs of the genome: Reading, writing, and regulating

A high-resolution map of protein binding locations in yeast has produced two distinct gene regulatory architectures, challenging traditional models of gene regulation. The study revealed unique protein assemblages and absence of specific regulatory control signals at housekeeping genes.

SourcePenn State·JournalNature·DateMar 10, 2021

Where am I going? Just ask your subiculum

A team at Osaka City University has found that the subiculum sorts and routes spatial information from the hippocampus to specific regions of the brain, enabling smooth navigation. This discovery could shed light on disorders such as dementia and improve our understanding of brain function.

SourceOsaka City University·JournalScience Advances·DateMar 10, 2021

Second shot of COVID-19 vaccine may not be necessary in previously infected individuals -- Mount Sinai

Researchers at Mount Sinai found that a single shot of COVID-19 vaccine can provide immunity to individuals who have previously been infected by the virus. This could help stretch limited vaccine supplies and spare individuals from unnecessary side effects of a second dose.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNew England Journal of Medicine·DateMar 10, 2021

harp reductions in costs of producing cannabis, fentanyl likely to spur widespread changes in use, dependence

A new analysis by Carnegie Mellon University professor Jonathan Caulkins explores the effects of reduced production costs on cannabis and opioid use. Sharp declines in prices may alter consumption patterns and lead to changes in drug markets, including reduced violence and disruption of criminal organizations.

SourceCarnegie Mellon University·JournalInternational Journal of Drug Policy·DateMar 10, 2021

Bioaccumulation of phased-out fire retardants is slowly declining in bald eagles

Research published in Environmental Toxicology and Chemistry shows a sustained 3.8% annual decline in PBDE concentrations in bald eagle nestlings' blood samples across Minnesota and Wisconsin. The findings are instructive for regulators to set protective levels for wildlife and fish consumption advisories for humans.

SourceSociety of Environmental Toxicology and Chemistry·JournalEnvironmental Toxicology and Chemistry·DateMar 10, 2021

Deciphering the impacts of small RNA interactions in individual bacterial cells

Researchers deciphered the impacts of sRNA interactions on individual bacterial cells, revealing minor effects from base-pairing interactions and significant effects from disruptions in Hfq binding. The study used high-throughput sequencing and quantitative super-resolution imaging to understand the regulation of gene expression under ...

Analysis of "virtual" pollinator trade reveals global dependence on biodiversity for food consumption

Developed countries heavily rely on imported pollination services from developing nations with high crop export rates, indicating a global dependence on biodiversity. Countries that export most pollinator-dependent crops also experience fastest cropland expansion and highest biodiversity decline rates.