All USA & Canada articles – Page 12
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NewsWhy some people naturally control HIV even after stopping therapy — and how we can leverage that to treat others
New research offers a path toward life without daily HIV pills, suggesting a common diabetes pill could help achieve long-term remission.
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NewsSmart wound dressing delivers antibiotics on-demand, accelerating healing and reducing resistance
Biomedical engineers have developed a new wound dressing material that releases antibiotic drugs only when harmful bacteria are present in a wound. The material could help rapidly clear wound infections to accelerate healing while reducing the unnecessary use of antibiotics.
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NewsReplicating bacteria DNA relies on accordionlike folds to separate
A new study deepens our understanding of what bacterial cells use to separate their DNA during replication, since they do not rely on external structures like human cells do.
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NewsKorean live microbes survey finds less inflammation from consuming fermented foods
A new study that analyzed South Korean health data to determine whether live microbe intake from fermented foods like kimchi is associated with certain health indicators, found a link between increased consumption of live microbe-rich foods and lower systemic inflammation.
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NewsWeaning, more than a change of food: It shapes a life-long, healthy gut
According to a team of researchers, weaning or switching from milk to solid food in early life doesn’t just change what babies eat, it helps reprogram the gut’s immune defenses to mount faster and stronger responses that can last into adulthood.
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NewsFood scientists develop new antimicrobial for cleaning and sanitizing dry-food processing equipment
New research describes a novel chemical mixture for sanitation in low-moisture environments. Scientists found that a formulation containing cyclomethicone combined with vinegar-based acetic acid was the most effective against Salmonella and Cronobacter bacteria.
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NewsMulti-strain probiotic therapy shows promise in preventing bacterial vaginosis recurrence
A global team of experts has identified a promising new approach to prevent recurrence of bacterial vaginosis (BV). In a phase 1 randomized clinical trial, researchers found that a short course of a multi-strain probiotic restored protective bacteria to the vagina, significantly reducing disease recurrence.
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NewsStudy shows breath test can confirm bacterial infection
A study shows how molecules that are only broken down by infecting bacteria, and not by gut bacteria, can be used to confirm infection. By enriching these molecules with a naturally occurring carbon isotope, the researchers found that carbon dioxide produced when they break down is easily detected in a breath test.
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NewsTarget behind cancer drug shown to help fight influenza in mice
A protein already targeted by FDA-approved cancer drugs may also help the body fight influenza. A study found that Programmed Death-Ligand 1 (PD-L1), best known for helping tumors evade immune attack, instead helped immunocompromised mice clear flu-infected lung cells and survive infection.
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NewsScientists uncover how HPV-positive cancers hide from the immune system — and how to make them visible again
A new study solves a major mystery in cancer immunology by uncovering how HPV hides cancer cells from the immune system by using MARCHF8 to destroy MHC-I, which serves as a warning flag for the immune system.
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NewsPrototype breath tests spot bacterial infections in minutes
Researchers have adapted the long-used breath test for Helicobacter pylori, a bacterium that causes a common stomach infection, expanding the technology’s capabilities to detect a broader range of bacterial infections.
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NewsA newly identified disease of corn and sorghum may be mistaken for iron deficiency
A newly identified bacterial disease affecting corn and sorghum can closely resemble iron deficiency, potentially leading farmers to apply costly nutrient treatments that do not address the underlying problem.
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NewsFantastic fungi found with ability to freeze water
An international group of researchers has discovered the identity of fungal proteins that can catalyze ice formation at high subzero temperatures. One potential application of this discovery could be to engineer weather.
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NewsTrace levels of food pathogen do not always translate to health risk, says study
Ultra-sensitive food safety tests may drive food waste and unavailability with limited public health benefit, according to a study. These food safety measures and ultra-sensitive tests may drive edible food being thrown away, excessive packaging, and extra costs for consumers.
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NewsInappropriate antibiotic use for COVID-19 is linked to resistance
Taking azithromycin for as little as one day triggers antibiotic resistance in the respiratory tract, according to a first-of-its kind look by scientists at the changes that occur in the microbiome of hospitalized patients who were treated for COVID-19.
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NewsEngineered yeast gives the US a green edge in the critical minerals market
A new, U.S.-based, environmentally friendly method for mining rare-earth elements used in consumer electronics, clean energy, defense and biomedical imaging uses oxalic acid made by sugar-eating engineered yeast, extracting almost all the rare-earth elements from low-grade ore.
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NewsStudy identifies causes of potato dry rot in Colorado
Researchers have identified multiple fungal species causing dry rot in Colorado. By analyzing structural and molecular features, plant pathologists identified four Fusarium species associated with potato dry rot – including one that hadn’t previously been found in the U.S.
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NewsStudy maps how tuberculosis bacteria power themselves
A new study provides the first detailed 3D structure of a protein called EtfD, which the bacterium Mycobacterium tuberculosis uses to extract energy from lipids (fats), along with the first laboratory test capable of directly measuring its activity.
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NewsHeart disease risk tied to certain molecules made by gut microbes
In a study involving data from thousands of people, the risk of a new coronary heart disease diagnosis was statistically associated with bloodstream levels of nine specific molecules that are produced by gut microbes.
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NewsNew study fills research gap in food safety to better protect pregnant women from Listeria
Researchers developed new biologically plausible dose-response models — one for maternal infection and one for stillbirth — built on data from guinea pigs and gerbils, which share key biological traits with humans relevant to listeria pathogenesis.