All USA & Canada articles – Page 79
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NewsBacteria in anal glands help cats to communicate
A new study shows how domestic cats send signals to each other using odors derived from families of bacteria living in their anal glands.
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NewsNeurotoxin BMAA found in dust from Great Salt Lake
Researchers have identified a chronic neurotoxin known as BMAA, linked to neurodegenerative illnesses, in dust particles from the Great Salt Lake’s dried lakebed.
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NewsMicrobes in gastrointestinal tracts may foretell Alzheimer’s and Parkinson’s
Researchers have found that healthy, anti-inflammatory gut bacteria are less abundant among people who are diagnosed with Parkinson’s disease.
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NewsAntibacterial material developed for use with internal medical devices
Researchers have developed an effective and flexible antimicrobial material that could be used to coat medical devices placed inside the body, such as hip replacements or pacemakers.
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NewsScientists uncover how bacteria recognize viral invasion and activate immune defenses
Researchers have discovered that bacteria sense phages via a defensive response called CBASS that detects viral RNA.
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NewsMicrobes could help reduce the need for chemical fertilizers
Chemical engineers have developed a coating that protects nitrogen-fixing bacteria from heat and humidity, which could allow them to be deployed for large-scale agricultural use.
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NewsFourth dose of COVID vaccine boosts protection in patients with rheumatic disease
A new study suggests that the recommendation for patients receiving disease-modifying antirheumatic drugs to receive a fourth dose of the mRNA vaccine has saved lives and reduced hospitalizations among patients in this high-risk group.
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NewsNovel C. diff structures are required for infection and offer new therapeutic targets
Iron storage ‘spheres’ inside the bacterium C. diff — the leading cause of hospital-acquired infections — could offer new targets for antibacterial drugs to combat the pathogen.
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NewsNew report outlines microbial solutions to mediate methane emissions
A new report highlights recommendations to further the scientific community’s understanding of microbial processes of methane production and consumption to mitigate methane emissions and address climate change.
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NewsNew method detects bird flu on wetlands beloved of waterfowl
Researchers have developed a method that can detect infectious bird flu virus in wetlands frequented by waterfowl.
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NewsVegan diet fosters changes in gut microbiome that reduce hot flashes by 95%
A low-fat vegan diet that includes soy fosters changes in the gut microbiome that decrease postmenopausal vasomotor symptoms, or hot flashes, overall by 95%, according to a new study.
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NewsDangerous bee virus growing less deadly in at least one US forest, researchers find
The findings suggest the virus can evolve to be less severe and could help inform solutions to mitigate the virus in managed honey bee colonies.
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NewsTiny hinges bend the infection-spreading spikes of a coronavirus
Disabling those hinges could be a good strategy for designing vaccines and treatments against a broad range of coronavirus infections, including COVID-19.
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NewsStudy uncovers mediators of persistent HIV viremia
Researchers examining people with non-suppressible HIV viremia (NSV) despite receiving antiretroviral therapy (ART) have found large reservoirs of proviruses inserted into transcriptionally active regions of immune cell genomes.
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NewsCOVID-19 compromised U.S. gains in controlling HIV and worsened health disparities
The COVID-19 pandemic slowed previous gains made in controlling HIV blood levels and worsened health disparities, according to researchers leading the largest U.S. evaluation of the impact of the public health crisis on people with HIV.
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NewsMaternal dengue immunity worsens birth defects caused by Zika virus
A new study finds prior dengue antibodies substantially raise the risk of microcephaly and fetal defects with Zika infection.
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NewsHow green algae count cell divisions reveals key step needed for multicellular life
Scientists have made an unexpected discovery of a biased counting mechanism used by the single-celled green alga Chlamydomonas to control cell division.
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NewsResearchers invent single, rapid test for both HIV and TB
Scientists have developed a new and rapid test that can detect both HIV and tuberculosis at the same time with just a small amount of blood.
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NewsFungi drive ice formation by excreting small proteins
An international team of researchers explored the characteristics and properties of fungal ice nucleators, revealing that they are made up of small protein subunits and play a role in both promoting and inhibiting ice growth.
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NewsHalophilic fungi can restructure cell walls to withstand extreme environments
Researchers have shown how microorganisms known as halophilic fungi stand up to high salt concentrations that would be lethal to other microbes.