All articles by Linda Stewart – Page 8
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NewsStudy detects, for the first time in Brazil, bacteria that cause a serious disease in farmed fish
Columnaris disease pathogens, which were previously only found in Asia and the United States, were identified in samples from São Paulo, Minas Gerais, and Paraná. This finding underscores the need for epidemiological surveillance and new vaccines.
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NewsIn the right place, even a less fit species can win
A study based on mathematical models shows that, when competing populations colonize new territory, greater fitness is not enough: position and expansion speed also matter.
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NewsReshaping the gut microbiome can boost chemotherapy delivery to tumors
A common antibiotic reshaped gut bacteria in preclinical models, significantly reducing liver clearance and doubling how long chemotherapy remained in circulation to reach tumors.
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NewsScientists fight drug-resistant parasites with nature-inspired drugs
As parasites become increasingly resistant to existing drugs, researchers are working to develop a new generation of treatments for two serious infectious diseases: malaria and babesiosis.
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NewsRedistributing sunlight boosts algae biomass productivity sixfold
Researchers have developed a low-energy way to distribute sunlight more evenly throughout algae cultivation systems. The technology increased algae biomass productivity by as much as six times in outdoor testing.
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NewsShort-chain fatty acids and bile acids signaling in chronic hepatitis B
Current therapies suppress chronic hepatitis but rarely achieve functional cure (sustained HBsAg loss). Emerging gut‑liver axis evidence shows that microbial metabolites modulate HBV replication and immunity.
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NewsBioactive metabolite boosts HIV treatment response, reverses gut dysfunction
Scientists have identified a naturally occurring metabolite that repairs gut damage caused by HIV infection and significantly improves the effectiveness of antiretroviral therapy in the nonhuman primate model of HIV/AIDS.
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NewsGeology: Antarctica’s Blood Falls reveals an ancient marine community
Salty water flowing through Antarctica’s Blood Falls contains a distinct community of marine-specific microorganisms, providing evidence that the brine system beneath the glacier has a marine origin.
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NewsTwo deadly flowers have big medical potential
Two plants that cause neurotoxicity and paralysis in the tiniest doses are also known to counter pain, malaria, cancer and pests. For the first time, researchers have discovered a way to recreate these powerful compounds in the lab - with the help of yeast.
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NewsThe amino acid arginine helps the body fight tumors and viral infections
Scientists have discovered that an arginine-deficient diet impacts the immune system by stalling the production of the MHC-1 protein, which alerts the immune system to dangers such as a mutating cell or an invading virus.
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NewsNew discovery could hold key to making microbes more resistant towards industrial processes
In the bacterium Pseudomonas putida, the membrane protein CrcB pumps harmful fluoride ions out of the cells. Researchers investigated how P. putida adapts to a fluoride-containing environment, when it is deprived of the ability to produce the CrcB protein.
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NewsScientists bring Florida high school students to the front lines of pandemic preparedness
Thirty outstanding high school students from 18 communities across Florida arrived in Tampa last week for the Global Virus Network (GVN) Global Guardians for Pandemic Preparedness Program, curious about viruses and considering careers in science.
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NewsTuberculosis drug discovery gets smarter with AI
Scientists have built an artificial intelligence tool to help scientists focus their efforts after initial screening of potential tuberculosis drugs. The team is also using AI to organize years of collaborative data into a searchable form.
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NewsHighly reliable LFIA based on selenium nanoparticle reveals long-term real-world dynamics of neutralizing antibodies against SARS-CoV-2
SDS modified selenium nanoparticles enable reliable lateral flow immunoassay, showing that neurological and hematological patients lose vaccine induced immunity much faster.
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NewsLeishmania: When tropical parasites use immune cells as a taxi
Tom Beneke intends to clarify, as part of the new Emmy Noether Research Group ‘LeishMove’, exactly how the Leishmania parasites control their host cells and which variations in the parasites are necessary for this.
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NewsHepatitis B virus infection or reactivation and HBV-related liver dysfunction in patients with inflammatory bowel disease receiving infliximab
A real-world study examines HBV infection and reactivation rates in a large cohort of Chinese IBD patients treated with infliximab.
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NewsNew framework to reveal how microbial modulators can work alongside agricultural practices to boost plant performance
Scientists have proposed a new framework for understanding how microbes, soil fauna, viruses and compounds in the soil can be used alongside agricultural practices to reshape the native plant microbiome and boost plant performance.
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NewsLeaky gut might make food allergies worse
A “leaky gut” might increase the severity of food allergies, according to new research conducted in mice and published in The Journal of Immunology. The researchers found that changes to the gut microbiome in mice were linked to increased intestinal permeability (leaky gut), and an increase in food allergy severity. ...
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NewsMicroorganisms actively shape the ocean floor
At a newly discovered hydrothermal system in the Mediterranean, researchers were able to demonstrate how different intensities of hydrothermal fluid flow shape microbial communities and control mineral formation on the ocean floor.
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NewsImmune system: the farm effect is clearer than ever thanks to bacteria
An international research team has identified for the first time which bacteria in barn air are responsible for the ‘farm effect’ that can protect against allergies, asthma, and hay fever.