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Algae in the oceans often steal genes from bacteria

A Rutgers co-authored study found that algae, responsible for producing 70% of oxygen and 45% of global primary production, acquire beneficial genes from bacteria. The study analyzed genomic data from 23 species of brown and golden-brown algae and discovered that gene stealing or acquisition varies substantially among different species.

SourceRutgers University·JournalScience Advances·DateApr 29, 2020

Bid to lower COVID-19 deaths

A new investigation at Flinders University seeks to understand why bacterial infections predispose individuals to severe COVID-19. The research aims to connect respiratory tract bacterial colonization with COVID-19 outcomes in the community.

Milestone for the early detection of sepsis

Researchers developed a ground-breaking method to detect sepsis 2-3 days before clinical symptoms appear using endogenous signals (biomarkers). The test has high accuracy and may increase survival chances for sepsis patients. Approval in the US FDA is underway, with clinical trials starting soon.

SourceGraz University of Technology·JournalJournal of Biotechnology·DateApr 21, 2020

How cells recognize uninvited guests

A research team at the University of Bonn has discovered that the TLR8 immune sensor plays a crucial role in defending human cells against bacteria and other pathogens. The enzymes RNaseT2 and RNase2 break down bacterial RNA into characteristic fragments, allowing TLR8 to recognize and respond to the invasion.

SourceUniversity of Bonn·JournalImmunity·DateApr 14, 2020

Now metal surfaces can be instant bacteria killers

Researchers at Purdue University have developed a technique that uses laser-texturing to create nanoscale patterns on metal surfaces, instantly killing bacteria and viruses. The technology has potential applications in medical devices such as orthopedic implants and wearable patches for chronic wounds.

SourcePurdue University·JournalAdvanced Materials Interfaces·DateApr 9, 2020

Receptors for the immune defense

Researchers discovered that jawless and jawed vertebrates share similar immune receptor gene structures despite independent evolution. The findings provide insight into the evolution of the adaptive immune system and its importance for human health.

SourceMax-Planck-Gesellschaft·JournalScience Immunology·DateMar 13, 2020

Two-faced bacteria

Researchers at Texas A&M University have discovered a previously unknown response to indole in the beneficial gut bacteria E. coli, which seems to both repel and attract bacteria. The Janus response displays sophistication and could lead to a better understanding of the complexities of the gut microbiome.

SourceTexas A&M University·JournalProceedings of the National Academy of Sciences·DateMar 5, 2020

Outsmarting pathogens

Scientists develop a new model to predict bacterial resistance to antibiotics and explore approaches for universal flu vaccines. Researchers also create a platform to accelerate drug development and study the impact of antibiotics on gut bacteria.

Metals could be the link to new antibiotics

University of Queensland researchers have discovered 23 metal compounds with antibacterial and antifungal activity, selectively killing bacteria like MRSA but not human cells. The findings offer promise for outwitting bacterial resistance, as the new compounds may use different mechanisms than existing antibiotics.

SourceUniversity of Queensland·JournalChemical Science·DateFeb 26, 2020

Study finds key mechanism for how typhoid bacteria infects

Researchers have identified a crucial role for the typhoid toxin protein in delivering toxins to host immune cells and disrupting their function. The study's findings suggest that targeting specific sugars on immune cells could prevent the bacteria from entering and infecting them, paving the way for new treatment options.

SourceCornell University·JournalPLOS Pathogens·DateFeb 25, 2020

Potential drug against antibiotic-resistant bacteria

Researchers developed AB569, a combination of acidified nitrite and disodium ethylenediaminetetraacetic acid, which killed Gram-negative and Gram-positive bacterial pathogens, including Pseudomonas aeruginosa. The agent was found to be nontoxic to human cells at bactericidal concentrations, suggesting a potential therapeutic agent for ...

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateFeb 17, 2020