More USA & Canada News – Page 17
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NewsCheese fungi color changes help unlock secrets of evolution
Color changes in fungi on cheese rinds point to specific molecular mechanisms of genetic adaptation—and sometimes a tastier cheese.
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NewsSigns of life on Mars? Not so fast, say geologists
Geologists have urged caution in claiming signs of life on Mars from speckled rock found by Perseverance Rover. The researchers believe that a non-biological origin of the speckled rock found on Mars by NASA’s Perseverance rover is just as compelling as a biological one.
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NewsResearch identifies immune response that controls Oropouche infection and prevents neurological damage
Research conducted on mice has identified that the rapid response of a specific type of defense cell is essential for controlling Oropouche virus infections and preventing serious neurological damage.
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NewsMost Americans favor MMR vaccine requirement for public school, survey finds
Research in April 2025 finds that 70% of the US public supports vaccine requirements for MMR (measles, mumps, and rubella) for children to attend public school, more than in 2023.
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NewsResearchers find a way to use antibodies to direct T cells to kill Cytomegalovirus-infected cells
Researchers have found a new way to prompt the immune system to kill cells infected with cytomegalovirus (CMV). They did this by engineering antibodies that direct the immune system’s T-cells to kill cells infected with the virus.
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NewsScientists probe how microbial communities and environmental factors impact cotton development
Soil microbial communities play a vital role in plant health, influencing root development, disease resistance, nutrient and soil water uptake and more.Scientists are investigating how these microbial communities impact cotton development and overall yield across diverse climates, agricultural practices and environmental stressors.
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NewsAI uncovers hidden rules of some of nature’s toughest protein bonds
Scientists have shown how artificial intelligence can reveal the hidden rules of one of biology’s strangest phenomena: catch-bonds – molecular interactions that get stronger when pulled. Their findings shed light on how bacteria cling to surfaces, how tissues resist tearing, and how new biomaterials might be designed to harness force.
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NewsMethod probing dark matter uncovers hundreds of new bacteria, and two potential antibiotics
A new approach to exploring untapped soil resources circumvents the need to grow bacteria in the lab by extracting very large DNA fragments directly from soil to piece together the genomes of previously hidden microbes, and then mines resulting genomes for bioactive molecules.
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NewsUS COVID-19 school closures were not cost-effective - but other non-pharmaceutical interventions were
School closures during the COVID-19 pandemic imposed enormous long-term costs while other measures delivered better health outcomes for far less money, according to new research analysing non-pharmaceutical interventions in the United States.
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NewsSwitch on, switch off: the dynamic defense of a deadly plant disease
Even strains of Phytophthora infestans considered sensitive to mefenoxam can rapidly develop resistance after a single exposure to a low dose. Researchers have uncovered the dynamics of this defense mechanism, revealing a foe that is more adaptable than previously thought.
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NewsResearchers uncover how COVID-19 may linger in cancer patients and affect treatment outcomes
New research is providing important insights into how COVID-19 persists in cancer patients even long after testing positive. Researchers studied three cancer patients who had undergone transplant therapies and were hospitalized with severe COVID-19 infections.
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NewsScientists probe tool used by harmful bacteria to hijack crops
Researchers have identified a tool that helps the bacteria Pseudomonas syringae turn a plant’s fundamental biology against itself. The findings could eventually lead to new approaches to protecting crops.
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NewsMD Anderson and Nature to co-host conference on the tumor ecosystem
The University of Texas MD Anderson Cancer Center and Springer Nature will co-host a free, in-person conference to explore the latest research on the tumor ecosystem, highlighting how its components influence cancer development, progression, diagnosis and treatment.
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NewsScientists report the first use of CRISPR activation to treat a cardiac disease in mice
Researchers have demonstrated for the first time that CRISPR-based gene activation (CRISPRa) can be used to treat genetic heart disease in vivo. The study paves the way for novel targeted therapies for patients with genetic cardiac disorders.
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NewsResearchers uncover potential biosignatures in Bright Angel formation on Mars
A new study has revealed potential chemical signatures of ancient Martian microbial life in rocks examined by NASA’s Perseverance rover.
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NewsResearchers capture new antibiotic resistance mechanisms with trace amounts of DNA
Scientists have developed a method to isolate genes from amounts of microbial DNA so tiny that it would take 20,000 samples to weigh as much as a single grain of sugar.
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NewsAlkali waste dumped in the Pacific Ocean created alkalophilic microbial ecosystems
Barrels filled with industrial waste that were dumped in the sea near Los Angeles more than 50 years ago are creating new microbial ecosystems adapted to highly alkaline conditions.
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NewsExtreme diatoms inside the Arctic ice glide into the record books
Diatoms found in polar ice are active until temperatures drop to -15 C - the lowest ever recorded for movement by a eukaryotic cell.
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NewsLiving ink containing bacteria could help rebuild coral reefs
Researchers created a living material that encourages coral larvae to attach and settle down. Bacterial Reef Ink (BRINK) is a photopolymerized hydrogel hosting two native Hawaiian settlement-inducing bacterial strains.
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NewsResearchers reveal infection risks oral mucositis poses to stem cell transplant patients, introduce a superior AI tool to predict them
Researchers have completed a series of studies that reveal how much painful mouth sores known as oral mucositis increase infection risks in stem cell transplant patients and how artificial intelligence can be used to more accurately predict those risks.