All USA & Canada articles – Page 2
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NewsDose of psilocybin, dash of rabies point to treatment for depression
Researchers used a combination of psilocybin and the rabies virus to map how – and where – the psychedelic compound rewires the connections in the brain. Specifically, they showed psilocybin weakens the cortico-cortical feedback loops that can lock people into negative thinking.
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NewsEngineered virus boosts immune response against glioblastoma in preclinical models
Researchers have modified a herpes simplex virus (HSV-1) that stimulates the immune system to attack glioblastoma cells. A single dose of the modified virus increased T-cell, natural killer cell, and myeloid cell responses in the tumor microenvironment and increased the overall survival in preclinical models.
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NewsDeep sea microbes yield up their engineering secrets
A biomatrix of tiny tubes of protein, known as cannulae, link cells of the thermal vent-dwelling archaeon Pyrodictium abyssi together into a highly stable microbial community. A study reveals new details about the elegant design of the cannulae and their method of construction.
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NewsSocial lives of viruses affect antiviral resistance
Interactions among viruses can help them succeed inside their hosts or impart vulnerabilities that make them easier to treat. Scientists are learning the ways viruses mingle inside the cells they infect, as well as the consequences of their socializing.
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NewsPostharvest apple immunity: a key factor in shelf life and fruit quality
New research sheds light on how the immune system of apple fruits interacts with their microbiomes during storage, playing a crucial role in maintaining fruit health and preventing spoilage.
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NewsChemists synthesize a fungal compound that holds promise for treating brain cancer
For the first time, chemists have synthesized a fungal compound known as verticillin A, which was discovered more than 50 years ago and has shown potential as an anticancer agent.
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News$1.9m grant supports research on chronic wounds
Assistant Professor Carolyn Ibberson at the University of Tennessee, Knoxville, has received a four-year, $1.9 million grant from the National Institutes of Health to support research on infections in chronic wounds.
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CareersThe Future is Fungi 2025: award-winner Michroma’s mission to harness fungi for clean food dyes and flavors
Winner of The Future is Fungi Award 2025, US and Argentina-based foodtech startup Michroma is replacing petrochemical coloring with fungibased natural ingredients, launching one of the world’s leading sustainable platforms for food flavors and colors. Here’s its story.
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NewsResearchers identify bacterial enzyme that can cause fatal heart conditions with pneumonia infections
Researchers have identified a bacterial enzyme that may be the reason some people get heart complications with pneumonia, while others do not. Since enzymes create chemical reactions to help bacteria survive, grow, and sometimes attack tissues, zmpB could become a target for future therapies.
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NewsTo treat long COVID, we must learn from historical chronic illnesses, medical researchers say
Scientists and doctors have highlighted the importance of studying long COVID in the context of other post-acute infection syndromes or chronic illnesses. By analyzing historical accounts of other epidemics, researchers can gain important perspective on the effects of these chronic illnesses.
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NewsResearchers use ‘brain-on-a-chip’ to revolutionize fight against deadly encephalitis viruses
A transparent chip no larger than a stick of gum is helping scientists transform the way researchers study the human brain and develop treatments for some of the world’s deadliest viruses.
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NewsMental health conditions may heighten liver cancer risk in veterans due to increased hepatitis C
Mental health conditions, especially alcohol use disorder and post-traumatic stress disorder (PTSD), significantly increase the likelihood of developing liver cancer among U.S. veterans living with cirrhosis of any cause.
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NewsNew test distinguishes vaccine-induced false positives from active HIV infection
A new device correctly identified those with active HIV-1 infection 95% of the time and those without active infection but with vaccine-induced molecules that could trigger a false positive, 98% of the time.
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NewsResearchers confirm new rickettsia species found in dogs
Researchers have confirmed that a species of Rickettsia first seen in dogs in 2018 is a new species of bacteria. The new species is associated with symptoms similar to those of Rocky Mountain spotted fever (RMSF) in dogs, but has not yet been found in humans.
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NewsCedars-Sinai and Exobiosphere partner to launch biomedical research aboard the Haven-1 Space Station
Cedars-Sinai is partnering with Exobiosphere, a company that has developed scientific hardware to automate biomedical research in space and on Earth, and will send experiments to Haven-1, set to become the world’s first commercial space station.
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NewsPlant ‘first responder’ cells warn neighbors about bacterial pathogens
Researchers have found that a subset of epidermal cells in plant leaves serves as early responders to chemical cues from bacterial pathogens and communicate this information to neighbors through a local traveling wave of calcium ions.
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NewsAntibiotics could trigger immune response through gut microbiome metabolites
Researchers report how one of the most abundant gut bacteria responds to tetracyclines, a class of commonly prescribed antibiotics. Newly characterized signals released by the bacterium could aid the host’s immune response, inhibit pathogens and restructure the gut microbiome.
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NewsAlgae show how to make two proteins from one messenger RNA
Scientists have uncovered a hidden feature of protein translation in green algae, offering a new perspective on the basic rules of gene expression.
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NewsStudy links childhood vaccination to lower risk of drug-resistant bacteria
Children in Guatemala who received a common vaccine that helps prevent pneumonia were less likely to carry antibiotic-resistant bacteria, according to a new study examining whether rotavirus (RV) and pneumococcal (PCV13) vaccines reduce gut colonization by a group of bacteria.
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NewsPresurgical vaccine may prevent orthopedic device infections
Researchers have developed a novel presurgical vaccine strategy that may prevent dangerous infections in patients receiving hip, knee, and other joint replacements, creating an injectable scaffold designed to stimulate the immune system.