Tuesday, November 1, 2022

Protein kinase CK2 has key role in killer T cells during infection by Listeria monocytogenes

The protein kinase CK2 is involved in a wide range of biological processes and cellular functions, including inflammatory responses and pathologies associated with inflammation. CD8+ T cells, also known as killer T cells, are critical to maintain health by controlling infections by intracellular pathogens, including viruses and intracellular bacteria. Researchers now report that protein kinase CK2 controls CD8+ T cell effector and memory functions during infection. These experiments were done in mouse CD8+ T cells and a mouse model of infection by the intracellular pathogenic bacteria Listeria monocytogenes.

from Top Health News -- ScienceDaily https://ift.tt/aFgBSZo

Better understanding of the development of intestinal diseases

Bacteria in the small intestine adapt dynamically to our nutritional state, with individual species disappearing and reappearing. Researchers have now been able to comprehensively study the bacteria of the small intestine and their unique adaptability for the first time. The findings contribute to a better understanding of intestinal diseases such as Crohn's disease or Celiac disease and to the development of new therapeutic approaches.

from Top Health News -- ScienceDaily https://ift.tt/xGywW3I

Researchers 'feed' leftover coffee grounds to microalgae to produce low emission biodiesel

Researchers have produced high-quality biodiesel after 'feeding' and growing microalgae on leftover coffee grounds.

from Latest Science News -- ScienceDaily https://ift.tt/voy8Fgl

Scientists uncover new clues about the climate and health impact of atmospheric particles

Peering inside common atmospheric particles is providing important clues to their climate and health effects, according to a new study by chemists. Secondary organic aerosol (SOA) particles are ubiquitous in the atmosphere and play an important role in air quality and climate. They can add to air pollution and damage the lungs, as well as help deflect solar radiation or aid cloud formation. Different types of SOA can mix together in a single particle and their environmental impacts are governed by the new particles' physical and chemical properties, particularly the number of phases --or states-- it can exist in. In a new research letter published in the European Geosciences Union's open access journal Atmospheric Chemistry and Physics, an international team of researchers found that particles with two phases can form when different types of SOA mix. The finding could help improve current models that predict SOA climate and health effects.

from Top Health News -- ScienceDaily https://ift.tt/OzNrVkL

'A silent killer' -- COVID-19 shown to trigger inflammation in the brain

Researchers have found that COVID-19 activates the same inflammatory response in the brain as Parkinson's disease. The discovery identified a potential future risk for neurodegenerative conditions in people who've had COVID-19, but also a possible treatment.

from Latest Science News -- ScienceDaily https://ift.tt/PvNHECW

Violent supershear earthquakes are more common than previously thought

About 14% of magnitude 6.7 or greater strike-slip earthquakes since 2000 have been supershear. That's 50% more than previously thought. Supershear earthquakes occur when a fault ruptures faster than seismic shear waves can travel through rock. The events were thought to be rare because scientists had mostly looked for them on land. The findings suggest that disaster planning assessments should include whether a fault is able to produce supershear quakes, which are potentially more destructive than other types.

from Latest Science News -- ScienceDaily https://ift.tt/oxYOeGR

'A silent killer' -- COVID-19 shown to trigger inflammation in the brain

Researchers have found that COVID-19 activates the same inflammatory response in the brain as Parkinson's disease. The discovery identified a potential future risk for neurodegenerative conditions in people who've had COVID-19, but also a possible treatment.

from Top Health News -- ScienceDaily https://ift.tt/PvNHECW

Scientists discover first new penguin species in more than 100 years

Genetic evidence has revealed a previously unknown gentoo penguin species on the remote Kerguelen Islands and shown that gentoos actually co...