Parthanatos pathway behind neuron loss in multiple sclerosis identified

Multiple sclerosis (MS) is a chronic, often debilitating autoimmune disease that affects the central nervous system (CNS). This disease causes the immune system to mistakenly attack the protective sheath surrounding nerve ...

Biochemistry

Not one ring but many: Antioxidant enzyme family can assemble in far more diverse ways than previously thought

Peroxiredoxins are among the most abundant enzymes involved in managing oxidative stress. They control the levels of peroxides such as hydrogen peroxide, relay redox signals, and help protect other proteins during stress. ...

Cell death in photoreceptor cells is reversible, study finds

Photoreceptors are specialized cells in the eye that convert light energy into neural signals. Several diseases that cause irreversible vision loss, including age-related macular degeneration, retinitis pigmentosa and retinal ...

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Improperly disposed wet wipes could shed microplastics in rivers

Wet wipes conveniently clean and sanitize soiled surfaces and skin. Because some labels do not clearly indicate how consumers should dispose of them, these small cloths are often flushed down the toilet and released by sewage ...

Quantum dots generate entangled photon pairs on demand

For the first time, researchers in China have demonstrated how quantum dots can be engineered to consistently generate pairs of entangled photons. By carefully tailoring the photonic environment surrounding a single quantum ...

Australia added to global sharks and rays database

A global database documenting the location of critical habitats for sharks, rays, and chimeras has recently expanded to include Australia, with years of extensive research by Charles Darwin University (CDU) contributing to ...

Do schools' car-free drop-offs really work?

It's a familiar sight at schools across the country: a line of slow-moving vehicles pulling up to the curb before a child jumps out. A similar scene plays out in the afternoons, only with children hopping into cars waiting ...

Seeing global trade through the lens of physics

New research from the Complexity Science Hub (CSH) shows why widely used algorithms for measuring economic complexity produce trustworthy results and how these tools may benefit diverse areas such as ecology, social science, ...

Selfish sperm hijack Overdrive gene to kill healthy rivals

A new University of Utah-led study has discovered the mechanism behind a decades-old evolutionary mystery—how "selfish chromosomes" cheat the rules of genetic inheritance. The researchers found that rogue chromosomes hijack ...

Seals and sea lions provide clues to evolution of vocalization

Neuroscientists have uncovered new insights into a key evolutionary question: Why can humans talk when most animals can't? The journal Science published the research led by Emory University and the New College of Florida. ...

Turning penicillin into a lethal force against bacteria again

When many disease-causing bacteria encounter penicillin, they are not always destroyed right away, shifting into a temporary survival state called antibiotic tolerance. This state allows them to withstand drug levels that ...

Lost page of legendary Archimedes palimpsest found in France

It all started off as a joke, a French researcher told AFP. But what the team found was a piece of history—a long-lost page from a legendary manuscript by ancient Greek mathematician Archimedes which had been languishing, ...

Wolves kill—and ravens remember where

When a wolf pack runs down its prey, the first on the scene is often the raven. Even before the predators have had time to dig in, the ravens are already in line, waiting to take advantage of the odd scrap of meat that becomes ...

Shell game: How oysters enlist help from microbes

For an oyster, creating an internal environment for calcification that forms its distinctive hard shell is essential. But new Harvard research has found that these bivalves may outsource the work, coordinating with microbes ...

Cattle grazing boosts nature recovery in Yorkshire Dales

Cattle grazing at a nature reserve in the Yorkshire Dales has increased plant diversity by more than 40%, according to research by the University of Leeds. Allowing native cattle breeds to roam large areas of the landscape ...

Why the Doomsday Clock has outlived its usefulness

The Doomsday Clock—a symbolic device to signal an array of existential threats to the world since 1947—was recently moved to 85 seconds before midnight, the closest it has ever been to midnight. And that was before all-out ...