All USA & Canada articles – Page 71
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NewsFungal-rich soil may improve green roofs
Active management of green roof mycorrhizal fungi accelerates soil development faster than if mycorrhizal fungal communities are left to passively reestablish on their own, a new study shows.
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NewsGreen alternative for treating Streptococcus iniae bacteria in hybrid striped bass
Scientists at the United States Department of Agriculture (USDA)’s Agricultural Research Service (ARS) have developed a green antibiotic alternative to treat the deadly pathogen Streptococcus iniae in hybrid striped bass, the fourth most farmed finfish in the United States, according to a recent study. Source: Matt McEntire, ...
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NewsSwitching to vegan or ketogenic diet rapidly impacts immune system - and gut microbiome
A study found that switching to a vegan diet prompted responses linked to innate immunity, while the keto diet elicited responses associated with adaptive immunity, along with metabolic changes and shifts in the gut microbiomes.
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NewsLifetime of ‘biodegradable’ straws in the ocean is 8-20 months, study finds
Researchers found that some commercial bioplastic or paper straws might disintegrate within eight to 20 months in coastal ocean systems and switching to foam makes a major difference.
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NewsBIPOC individuals bear greater post-COVID burdens
In a study, black and multiracial participants reported more days of lost work and health aftereffects when compared with white participants.
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NewsGut microbiota influence severity of respiratory viral infection
The composition of microbiota found in the gut influences how susceptible mice are to respiratory virus infections and the severity of these infections, a new study reveals.
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NewsTomato juice’s antimicrobial properties can kill salmonella
Tomato juice can kill Salmonella typhi and other bacteria that can harm people’s digestive and urinary tract health.
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NewsDNA particles that mimic viruses hold promise as vaccines
Using a DNA-based scaffold carrying viral proteins, researchers created a vaccine that provokes a strong antibody response against SARS-CoV-2.
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NewsViral protein fragments may unlock mystery behind serious COVID-19 outcomes
‘Zombie’ virus fragments continue to cause inflammation after the virus is destroyed, a new study finds.
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NewsRising sea levels could lead to more methane emitted from wetlands
A low-salinity Bay Area estuary ecosystem is producing higher-than-expected levels of methane.
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NewsResearchers create safer form of Coxiella burnetii for scientific use
Scientists have unexpectedly discovered that the weakened form of the bacteria Coxiella burnetii (C. burnetii) not typically known to cause disease, has naturally acquired an ability to do so.
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NewsSimulations show how HIV sneaks into the nucleus of the cell
A new study has revealed how HIV squirms its way into the nucleus as it invades a cell.
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NewsSingle dose typhoid conjugate vaccine (TCV) provides lasting efficacy in children
A single dose of the typhoid conjugate vaccine, Typbar TCV®, provides lasting efficacy in preventing typhoid fever in children ages 9 months to 12 years old, according to a new study.
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NewsStudying defensive bacteria in squid and newts may help human gut health
Elizabeth Heath-Heckman has received a $1.9 million grant to support her research studying the bacteria animals like squid and newts use to protect themselves.
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NewsResearchers pinpoint most likely source of HIV rebound infection
Researchers used genetic sequencing techniques on the nonhuman primate version of HIV to identify that lymph nodes in the abdomen are the main source of rebound infection after the first week of stopping antiretroviral treatment.
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NewsStudy in mice uncovers new protective benefit of breast milk
An immune component of breast milk known as the complement system shapes the gut environment of infant mice in ways that make them less susceptible to certain disease-causing bacteria, according to a new study.
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NewsFoodborne-pathogen Listeria may hide from sanitizers in multi-species biofilms
The finding could result in more effective sanitation procedures, leading to safer food supply, researchers said.
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NewsProtein may be the ‘glue’ that helps COVID virus stick
A study found that perlecan LG3 – a protein most commonly found in blood vessels and the brain – readily formed a stable bond with the COVID spike protein and perhaps enhanced the virus’ ability to bind with cells.
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NewsNew tool reveals gene behavior in bacteria
Researchers showed that the way in which genes are turned on and off as bacteria grow provide clues to their regulation.
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NewsExperiment shows how predator mass mortality events affect food webs
A team of biologists experimentally caused a predator die-off to understand how rapid predator deaths affect freshwater ecosystems.