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How SARS-CoV-2 takes over the cell's protein factory

A research team has discovered how the Covid virus reproduces itself by taking over the cell's protein factory. The team identified a specific structure in viral mRNA that allows the virus to access the ribosome and produce its own proteins, while blocking cellular production. This discovery opens up new avenues for antiviral treatments.

Making the invisible visible: A clearer ‘picture’ of blood vessels in health and disease thanks to new imaging approach

Researchers developed a new imaging approach called VascuViz to visualize blood vessels at different spatial scales. The method enables detailed mathematical models and complementary images to clarify the role of blood flow in health and disease, advancing our understanding of tissues throughout the body.

SourceJohns Hopkins Medicine·JournalNature Methods·DateFeb 28, 2022

An age-old problem

Researchers have developed a new model system using Daphnia to study aging, focusing on interventions that extend active life and health rather than just lifespan. This approach addresses existing problems in the field, such as lack of standardized data and misinterpretation of results.

SourceHarvard Medical School·JournalAging Cell·DateFeb 28, 2022

Providence study: COVID vaccine effectiveness declines after 6 months without boosters

A Providence study confirms COVID vaccines are 94% effective at preventing hospitalization within 50-100 days of vaccination, but protection declines to 80.4% after 200-250 days. The study also identifies key risk factors for severe breakthrough infections, including advanced age, comorbidities, and vaccine type.

SourceProvidence Health & Services·JournalThe Lancet Respiratory Medicine·TypeCase study·DateFeb 25, 2022

New study in Journal of Pharmaceutical Analysis marries modern science with traditional knowledge to decipher anti-diarrheal effect of cashew stem bark extract

A new study found that cashew stem bark extract inhibits abnormal gut motility associated with diarrhea, revealing a potential low-cost remedy for treating and managing the condition. The extract's mechanism of action involves blocking muscarinic acetylcholine receptors responsible for gastrointestinal motility.

SourceCactus Communications·JournalJournal of Pharmaceutical Analysis·TypeExperimental study·DateFeb 23, 2022

Tackling an epidemic

The opioid crisis in the US has reached epidemic levels, with over 100,000 drug overdose deaths reported for the first time. The US Centers for Disease Control and Prevention attributes the rise to abuse of synthetic opioid fentanyl and the COVID-19 pandemic.

SourceVeterans Affairs Research Communications·JournalThe Lancet·TypeCommentary/editorial·DateFeb 2, 2022

Lighting up tough pancreatic cancers

Researchers have designed a nanoparticle system that can deliver fluorescent dyes to diagnose and treat pancreatic cancer tumors. The system overcomes the challenge of reaching cells deep within dense tumor masses, enabling detailed images of tumor structures and potentially targeted therapies.

SourceAmerican Chemical Society·JournalJACS Au·DateFeb 2, 2022

Unveiling the secrets of biofilms at lightsource BESSY II

Researchers studied Bacillus subtilis biofilms using X-ray diffraction and fluorescence, finding that calcium ions accumulate in the matrix while zinc, manganese, and iron ions accumulate along wrinkles. These findings suggest a link between structure, nutrients, water, and bacterial behavior.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 31, 2022

Multi-organoid system to simulate human liver-islet axis in normal and type 2 diabetes

Researchers developed a novel multi-organoid system to simulate the human liver-islet axis, enabling 3D co-culture of hiPSC-derived organoids for up to 30 days. The system exhibited cooperative interaction between liver and islet organoids, reflecting the dynamic interplay among organs in type 2 diabetes.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalAdvanced Science·TypeCommentary/editorial·DateJan 25, 2022

iDIRECT network framework developed at the University of Oklahoma could help scientists better understand biological systems

A new framework, iDIRECT, can effectively infer direct relationships in association networks, improving our understanding of complex systems. This approach has been successfully applied to gene regulatory networks in E. coli and microbial communities in response to climate warming.

SourceUniversity of Oklahoma·JournalProceedings of the National Academy of Sciences·DateJan 11, 2022

The link between electrical voltage and brain flexibility a new study by Tel Aviv university found, for the first time; a direct and significant link between changes in G-protein-coupled receptors and the brain’s ability to adapt to external changes

A Tel Aviv University study found a significant link between changes in G-protein-coupled receptors and brain adaptability. Disabling the voltage sensor of these proteins caused uncontrolled brain flexibility, leading to excessive habituation to odors.

SourceTel-Aviv University·JournalNature Communications·DateJan 4, 2022

Presentation of the first personalized virtual planning and navigation system for craniosynostosis surgery

Researchers at Hospital Gregorio Marañón and UC3M developed a navigation system combining surgical navigation, three-dimensional photography, and augmented reality to estimate bone fragment positions during surgery. This system has been used on 7 patients with optimal results, reducing dependency on surgeons' experience.

SourceUniversidad Carlos III de Madrid·JournalPlastic and Reconstructive Surgery Global Open·DateDec 2, 2021

Spicy breast milk?

A study by the Technical University of Munich discovered that pungent substances from chili, ginger, and pepper are transferred to breast milk after consumption. These substances can be detectable in breast milk for several hours, with maximum concentrations being 70- to 350-fold below the taste perception threshold of an adult.

SourceTechnical University of Munich (TUM)·JournalMolecular Nutrition & Food Research·DateNov 29, 2021

Applying systems biology to aging research: AFAR recognizes Junyue Cao of Rockefeller University with 2021 Sagol Network Geromic Award for Junior Faculty

The American Federation for Aging Research (AFAR) has awarded the 2021 Sagol Network GerOmic Award to Junyue Cao, PhD, Assistant Professor at The Rockefeller University. Dr. Cao's project aims to profile single-cell molecular dynamics in aging tissues using high-throughput techniques.

Gastric cells—Plant substance from wine influences acid secretion via a bitter receptor

A study by Veronika Somoza's team found that gallic acid stimulates gastric cells to secrete acid via the bitter receptor TAS2R4. The plant substance affects acid secretion regardless of whether it is added to water or red wine. This discovery provides new insights into the functions of bitter receptors in food ingredients.

SourceLeibniz-Institut für Lebensmittel-Systembiologie an der TU München·JournalJournal of Agricultural and Food Chemistry·TypeExperimental study·DateOct 27, 2021

Molecular scales on biological membranes

Researchers have developed Mass-Sensitive Particle Tracking (MSPT) to analyze proteins on biological membranes in real-time. The method enables the determination of protein location and size changes without labeling, providing valuable insights into dynamic processes at the membrane.

SourceMax-Planck-Gesellschaft·JournalNature Methods·TypeExperimental study·DateOct 12, 2021

News on fine cocoa flavor

Scientists at TUM and LSB developed a new methodology to quantify the flavor profile of cocoa samples. The method provides quantitative data on 66 taste-decisive substances using a single mass spectrometric platform, allowing analysis of 200 samples per week.

SourceTechnical University of Munich (TUM)·JournalJournal of Agricultural and Food Chemistry·DateSep 17, 2021

For some peptides, killing bacteria an inside job

Researchers have found that certain peptides can target the internal mechanisms of bacteria, making them effective against antibiotic-resistant microbes. The study suggests that these peptides could be used to design therapeutic agents that succeed where standard antibiotics fail.

SourceRice University·JournalInterface·TypeComputational simulation/modeling·DateSep 16, 2021

Synthetic tissue model with blood vessels

Scientists create a cell culture system where blood vessels can grow within a framework made of synthetic materials. The team investigates material properties that promote blood vessel formation and refines the model to improve its performance, paving the way for growing implantable tissues.

SourceMax-Planck-Gesellschaft·JournalNature Communications·TypeExperimental study·DateAug 22, 2021