All USA & Canada articles – Page 72
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News
New technique reveals marine microbes’ outsized role in carbon cycle
A small fraction of marine microorganisms are responsible for most of the consumption of oxygen and release of carbon dioxide in the ocean, new research suggests.
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Liquid-coated air filter inspired by carnivorous plant can improve early capture of airborne pathogens
Researchers have designed a new liquid-coated air filter that allows for improved early detection and analysis of airborne bacteria and viruses, including the one that causes COVID-19.
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New contamination detection tool Squeegee targets low microbial biomass microbiomes
Researchers have developed a new contamination detection tool that can distinguish between a potential environmental contaminant and a genuine microbiome signal in low biomass studies – studies that contain little microbial DNA like breastmilk, placenta or amniotic fluid.
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Researchers find new viral entryway into host cells for Covid-19
A University of Ottawa-led team has found a new viral entry for SARS-CoV-2, suggesting it may be able to use proteins to infect a wider range of cells.
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Immune response discovery solves mystery of why colds are more common when it’s cold
Scientists say a newly discovered immune response inside the nose is suppressed by colder temperatures, offering evidence for why colds, flu and COVID-19 are more common in cooler months.
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Pathogen capture method speeds up ID in children with bloodstream infections
Researchers have developed a fast and highly efficient engineered pathogen capture method which shortcuts the accurate detection of pathogens in small blood samples, potentially saving lives.
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COVID-19 infection disrupts gut microbes, especially with antibiotics
Acute infection disrupts a healthy balance between good and bad microbes in the gut, especially with antibiotic treatment, researchers have found.
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Teen acne treatment can have knock-on impact on gut microbiome and maturing skeleton
Long-term use of systemic antibiotics to treat adolescent acne can perturb the gut microbiome, leading to altered profiles of circulating bile acids that reduce osteoblast function and bone mass accrual, researchers show.
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Genome studies uncover common ancestor for 600 scattered fungal species
About 600 seemingly disparate fungi that never found a good fit along the fungal family tree have been shown to have a common ancestor, according to a University of Alberta-led research team that used genome sequencing to give these peculiar lifeforms their own taxonomical grouping.
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Careers
A day in the life of a dairy microbiome field scientist
My role with California-based microbial solutions company Native Microbials takes me from the lab to the heart of the herd
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HIV infection leaves memory that persists in cells even when virus is gone
A new study explains why people living with HIV may suffer from chronic inflammation, which can put them at an increased risk of developing comorbidities such as cardiovascular disease and neurocognitive dysfunction and how suppression or even eradication of HIV in the body may not resolve it. ...
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Gene-delivering viruses cross into brain in step toward gene therapy for neurological diseases
A family of adeno-associated viruses (AAVs) has been developed that are capable of delivering gene therapies to the brain, a particularly challenging target tissue.
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Microbiome in wood warbler’s gut driven by evolution rather than diet
Scientists have found that differences among the microbes that live within wood warblers’ digestive tracts are not primarily driven by diet diversity, contrary to a recently proposed hypothesis.
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Disease-resistant corals can rescue their more vulnerable neighbours
Disease-resistant corals can be used to help “rescue” corals that are more vulnerable to disease, according to a study from the University of California, Davis, that monitored a disease outbreak at a coral nursery in Little Cayman, Cayman Islands.
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Vibrio toxins force key proteins to build ‘roads to nowhere’
Toxins released by a type of bacteria that cause diarrhoeal disease hijack cell processes, forcing important proteins to abandon jobs that are key to proper cell function and assemble into ’roads to nowhere’, a new study has found.
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Common fungus eradicates toxic mercury from soil and water
Researchers have found that the fungus Metarhizium robertsii removes mercury from the soil around plant roots, and from fresh and saltwater, and have genetically engineered the fungus to amplify its mercury detoxifying effects.
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Frequencies cloaked within song could trick systems into triggering deadly pathogen release
Researchers have shown how that the safe operation of a negative pressure room – a space in a hospital or biological research laboratory designed to protect outside areas from exposure to deadly pathogens – can be disrupted by an attacker armed with little more than a smartphone.
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Antibiotic resistant microbes in gut make C difficile more infectious
Scientists have found that Enterococcus – an antibiotic-resistant, opportunistic pathogen – works together with Clostridioides difficile in the human gut, reshaping and enhancing the metabolic environment in the gut so that C. difficile can thrive.
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Bacteria behind biblical disease have potential to regenerate livers
Scientists have discovered that the bacterium that causes leprosy can reprogramme cells to increase the size of a liver in adult animals without causing damage, scarring or tumours.