搜索结果：Cell death discovery

Scientists have uncovered a surprising secret hidden inside fat cells that could reshape how we think about obesity and metabolic disease。 A protein called HSL, long believed to simply release stored fat when the body needs energy, turns out to have a second job deep inside the nucleus of fat cells—helping keep those cells healthy and balanced。 Eve

Researchers found a new way to kill harmful “zombie” cells that linger after chemotherapy and help cancers become more aggressive。 These senescent cells survive by relying on a protective protein called GPX4, even while sitting on the edge of a deadly iron-triggered collapse。 New drugs remove that protection, causing the cells to self-destruct

Scientists revisiting mysterious 540-million-year-old microfossils from Brazil have overturned a major idea about early animal life。 What were once thought to be trails left behind by tiny worm-like creatures are now believed to be fossilized communities of bacteria and algae — some with remarkably preserved cells and organic material still intact

Scientists may have uncovered a surprising secret behind why life exists at all。 A new study suggests that the Universe’s fundamental constants — the deep physical rules that govern everything from atoms to stars — appear to sit within an incredibly narrow “sweet spot” that allows liquids to flow properly inside living cells。 Even tiny shifts in th

The cases seek to use consumer product safety laws to rein in chatbot companies

A team at King’s College London has created a powerful new aluminum compound capable of doing the work of expensive rare metals。 Its unique triangular structure gives it remarkable stability and reactivity, allowing it to drive chemical reactions in ways never seen before。 The discovery could lead to greener and far more affordable industrial proce

Scientists at the University of Maryland, Baltimore County, have uncovered a crucial trick used by enteroviruses—the group behind diseases like polio, myocarditis, encephalitis, and even the common cold—to reproduce inside human cells。 The team captured, in unprecedented detail, how viral RNA recruits both viral and human proteins to assemble the m

A medieval monk may have beaten Edmond Halley to one of astronomy’s greatest discoveries by nearly 700 years。 Researchers say Eilmer of Malmesbury recognized that the blazing comet seen in 1066 was the same one he had witnessed in 989。 At the time, comets were viewed as terrifying omens tied to war and royal deaths, adding even more drama to the fa

Scientists have uncovered a hidden “stop-scratching” signal in the nervous system that tells your brain when enough scratching is enough。 The discovery centers on a molecule called TRPV4, which acts like part of an internal braking system for itch relief。 In experiments involving chronic itch similar to eczema, mice missing this signal scratched le

Scientists at UBC Okanagan have uncovered how plants produce mitraphylline, a rare natural compound with promising anti cancer potential。 The team identified two enzymes that work together to build the molecule’s unusual twisted structure, solving a mystery that had puzzled researchers for years。 Because mitraphylline appears only in tiny amounts i

Astronomers have unleashed a powerful new AI tool called RAVEN to comb through data from NASA’s TESS mission—and it’s paying off in a big way。 By analyzing millions of stars, the system has confirmed over 100 exoplanets, including 31 brand-new worlds, and identified thousands more promising candidates。 What makes this especially exciting is the dis

Curiosity has detected a surprising variety of organic molecules on Mars, including compounds tied to the chemistry of life。 Some of these molecules may be billions of years old, preserved in ancient clay-rich rocks that once held water。 One standout find resembles building blocks of DNA, raising exciting questions about Mars’ past

Scientists have uncovered the true boundary of the Milky Way’s star-forming region using stellar “age mapping。” They found a telltale U-shaped pattern showing that star formation drops sharply around 35,000–40,000 light-years from the center。 Beyond that, stars are mostly migrants, slowly drifting outward rather than forming in place