All USA & Canada articles – Page 58
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Bioluminescent bacteria coordinate signalling to colonize squid’s light organ
Researchers reveal how bioluminescent bacteria coordinate their behaviour to colonize the Hawaiian bobtail squid through cellular signaling and cues from the environment.
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Bacterial protein may contribute to reduced fertility and birth defects
Scientists have published new findings that emphasize the crucial role of the urinary and genital tract microbiota in adverse pregnancy outcomes and genomic instability that originate in the womb during foetal development.
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Researchers craft ‘origami DNA’ to control virus assembly
Researchers have used DNA ‘origami’ templates to control the way viruses are assembled. The global team behind the research, published in Nature Nanotechnology, developed a way to direct the assembly of virus capsids – the protein shell of viruses - at physiological conditions in a precise and programmable manner. ...
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Discovery of new gene unveils sex determination in green algae
Scientists determine how female and male reproductive cells develop in volvocine algae.
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Cell wall of Lyme disease pathogen causes lingering symptoms
The National Institutes of Health awarded a College of Agriculture and Life Sciences researcher $2.7 million to understand how the cell wall of the Lyme disease-causing pathogen makes people sick.
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High-res map of the human placenta reveals COVID virus hideouts
Researchers have developed a high-resolution map of the human placenta visualizing an array of different immune microenvironments in healthy placentas from uninfected pregnancies, and those from pregnancies affected by COVID infections.
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Investigational three-month TB regimen is safe but ineffective
The first clinical trial of a three-month tuberculosis (TB) treatment regimen is closing enrollment because of a high rate of unfavorable outcomes with the investigational course of treatment.
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Widely consumed vegetable oil leads to an unhealthy gut
Researchers examined the gut of mice that were consistently fed a diet high in soybean oil for up to 24 weeks in the lab, finding beneficial bacteria decreased and harmful bacteria increased — conditions that can lead to colitis.
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Packaging tray can signal Salmonella contamination before food is unwrapped
Researchers have created a new packaging tray that can signal when Salmonella or other dangerous pathogens are present in packages of raw or cooked food such as chicken.
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Artificial cells show that ‘life finds a way’
Scientists studying a synthetically constructed minimal cell that has been stripped of all but its essential genes have found it can evolve just as fast as a normal cell.
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Scientists develop all-species Covid test
In an advance that will help scientists track coronavirus variants in wild and domesticated animals, researchers report they can now detect exposure to the SARS-CoV-2 virus in any animal species.
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Scientists uncover secrets of bacteria threatening Vidalia onion production
Researchers have confirmed which genes in the bacterial pathogen Pantoea ananatis high virulence cluster are essential and which genes contribute partially to a disease that causes rotting symptoms in Vidalia onions.
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New CRISPR gene editing approach opens up more of the genome
Scietnists have come up with a new way to identify diverse CRISPR RNA variants that can specifically home in on challenging areas of DNA to target for editing. The new approach opens up more of the genome for editing, enabling the repair of mutations associated with more diseases.
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Nearly half of TB cases in prisons worldwide go undetected
In the first global assessment of tuberculosis among incarcerated people, a new study found consistently high TB case rates and low case detection in prisons.
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Immune-boosting therapy helps honey bees resist deadly viruses
Scientists have successfully tested a novel way of boosting honey bees’ immune systems to help them fend off deadly viruses, which have contributed to the major losses of the critical pollinator globally.
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CRISPR-like system in eukaryotes can edit the human genome
The first RNA-guided DNA-cutting enzyme found in eukaryotes, Fanzor could one day be harnessed to edit DNA more precisely than CRISPR/Cas systems.
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Nanoparticle may improve mRNA cancer vaccines
Tests in mice with melanoma and colon cancer show the tiny particle creates an ‘army’ of immune cells that carry vaccine’s instructions, say the researchers.
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Molecular insights may inform new treatments for drug-resistant TB
Researchers have used state-of-the-art imaging to examine two new compounds that target ATP synthase, potentially stopping TB bacteria from producing the energy they need to survive.
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Squash bugs devour each other’s poo to stock their microbiome
Researchers have found that, to acquire healthy gut bacteria, young squash bugs innately seek out and eat the faeces from older squash bugs.
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Digital test directly measures HIV viral load
Researchers have developed a time and cost-efficient digital assay that can directly measure the presence of HIV in a single drop of blood.