All USA & Canada articles – Page 42
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NewsLab-grown algae removes microplastics from water
Scientists have applied a revolutionary strain of algae toward capturing and removing harmful microplastics from polluted water. The aim is to repurpose the collected microplastics into safe, bioplastic products such as composite plastic films.
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NewsCommon bacteria discovered in the eye linked to cognitive decline
Chlamydia pneumoniae can linger in the eye and brain for years and may aggravate Alzheimer’s disease. Research suggests this bacterium can amplify Alzheimer’s disease and points to potential interventions including inflammation-limiting therapies and early antibiotic treatment.
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NewsHow fire-loving fungi learned to eat charcoal
Wildfire causes most living things to flee or die, but some fungi thrive afterward, even feasting on charred remains. A new study is among the first to investigate how fungi that are barely detectable in the soil before a fire are able to proliferate wildly once an area has burned.
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NewsNew dashboard helps predict and plan for disease outbreaks
When infectious diseases surge, response often comes down to whether communities can position the right people and supplies before case counts spike. Researchers have designed a new platform to translate academic disease forecasting into actionable guidance for decision-makers.
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NewsLaunch of clinical trial of investigative nasal spray medicine to prevent illnesses from respiratory viruses
A new clinical trial will test a new experimental intranasal spray designed to boost immune defenses and reduce illness from respiratory viruses.
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NewsGenetic system makes worker cells more resilient producers of nanostructures
Researchers report the development of a new genetic regulatory system to improve cell viability during the production of gas vesicles.
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NewsResearchers enable microorganisms to build molecules with light
Researchers are continually looking for new ways to hack the cellular machinery of microbes to make useful products. A new study shows they can expand the biosynthetic capabilities of these microbes by using light to help access new types of chemical transformations.
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NewsStudy suggests far fewer cervical cancer screenings are needed for HPV‑vaccinated women
In a modeling study of women vaccinated against human papillomavirus (HPV), researchers found that cervical cancer screening could be done far less often than current recommendations without compromising health benefits.
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NewsOne of Earth’s most abundant organisms is surprisingly fragile
A group of ocean bacteria long considered perfectly adapted to life in nutrient-poor waters may be more vulnerable to environmental change than scientists realized. The bacteria, known as SAR11, dominate surface seawater worldwide and can make up as much as 40% of marine bacterial cells.
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NewsNew research finds crosstalk inside cells helps pathogens evade drugs
Biologists have uncovered a new mode of communication inside cells that helps bacterial pathogens learn how to evade drugs. Their findings describe how these mechanisms drive antimicrobial resistance in Listeria monocytogenes, the foodborne bacteria that causes listeriosis.
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NewsGut bacteria may tip the balance between feeding tumors and fueling immunity
A new study reveals how bacteria in the gut can help determine whether the amino acid asparagine from the diet will feed tumor growth or activate immune cells against the cancer.
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NewsSepsis study IDs simple ways to save lives in Africa
Tuberculosis (TB) is a major unrecognized cause of deadly sepsis among people with HIV in Africa, a new study reveals. It found that more than half of the hundreds of patients enrolled in the study had TB and that immediate treatment increased their chances of survival significantly.
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NewsMetformin shown to prevent Long COVID across risk groups in multiple randomized trials
Multiple randomized clinical trials and electronic health record studies now show that metformin, a widely used and well-established medication, significantly reduces the risk of developing Long COVID when taken during or shortly after acute infection with SARS-CoV-2.
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NewsNasal vaccine combats bird flu infection in rodents
Researchers have developed an intranasal H5N1 vaccine that elicited strong immune responses when tested in hamsters and mice and prevented infections in exposed animals. The team also confirmed their vaccine remained effective regardless of prior flu exposure.
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NewsFossilized plankton study gives long-term hope for oxygen depleted oceans
A new study suggests the world’s oxygen depleted seas may have a chance of returning to higher oxygen concentrations in the centuries to come, despite our increasingly warming climate. Source: Anya Hess Scanning electron image of fossilised planktonic foraminifera. Researchers at the University of Southampton (UK) and ...
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NewsInstitut Pasteur issues statement on U.S. administration’s attacks against biomedical research, global public health action and vaccination
For several months now, the current U.S. administration has consistently attacked and endeavored to weaken biomedical research and public health action in the United States and worldwide with unparalleled vigor, the Institut Pasteur has said in a new statement.
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NewsNew tool shows how to enter and change pneumocystis fungi
Researchers have reported success in genetically modifying the fungal pathogen Pneumocystis murina. Their approach uses extracellular vesicles from mouse lungs to deliver gene-modifying molecules inside the fungal cells. The modified fungus expressed the introduced genomic modifications.
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NewsMineral dust accelerating melting of Greenland ice sheet
Scientists have found that airborne mineral dust and other aerosols are directly connected to how much algae grows on the ice. The algae interfere with albedo, or the reflection of the sun’s rays, exacerbating melting.
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NewsGlowing bacterial sensors detect gut illness in mice before symptoms emerge
Researchers have engineered gut bacteria that dim their fluorescent glow in the presence of illness. Their findings could improve how we diagnose problems in the gut by using bacteria that already live there.
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NewsHow genes influence the microbes in our mouths
A new study has found human genetic factors that influence the oral microbiome and may increase risk of cavities and tooth loss in some people. Analysis of the now largest collection of oral microbiome profiles reveals interactions between human and bacterial DNA.