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Phys.org / Abalone shells could help trace seafood origins
The rocks beneath our feet are leaving a hidden signature in the shells of marine snails along Australia's ancient coastline, according to new research led by Adelaide University scientists. A study published in Proceedings ...
Phys.org / Snail-derived compound could be a safer anticoagulant compared to heparin
For more than a century, heparin has been the go-to anticoagulant to prevent harmful blood clots in blood vessels or the heart from forming or getting larger. However, a major side effect is an increased risk of excessive ...
Phys.org / Mystery of quinine biosynthesis solved with newly discovered enzymes
For over 350 years, quinine and other extracts from the cinchona tree (Cinchona spp.) were the only effective medicines against malaria, a tropical fever caused by single-celled parasites of the genus Plasmodium and transmitted ...
Medical Xpress / Nasal swab test spots early Alzheimer's signals
Alzheimer's disease affects millions of people worldwide, yet the illness is hardest to catch at the very beginning, when new treatments may work best. In a new study, Duke Health researchers show that a quick, outpatient ...
Medical Xpress / Premature menopause raises long-term heart risk by 40%, large study reveals
Women who enter natural menopause before age 40 face about a 40% higher lifetime risk of developing coronary heart disease than women who experience menopause later, according to a large Northwestern Medicine study that is ...
Phys.org / Bull sharks form social relationships with specific 'friends,' research reveals
Sharks are often viewed as solitary, but a new study—carried out on the Shark Reef Marine Reserve in Fiji—has found that rather than mixing at random, bull sharks have "active social preferences" and choose their social ...
Phys.org / ISS study identifies thresholds for muscle atrophy and fiber changes in reduced gravity
It's well known that spaceflight causes muscle atrophy and other biological changes in reduced gravity, and especially in near-zero gravity (microgravity) environments. However, the gravity threshold needed to maintain sufficient ...
Medical Xpress / Prototype breath tests spot bacterial infections in minutes
Infectious diseases are a major cause of death worldwide, and diagnosing bacterial infections remains a challenge in medicine. And doing so reliably is more important than ever, given the increasing frequency of antibiotic ...
Phys.org / Models warn Thwaites Glacier could rival entire Antarctic ice loss by 2067
The future of one of Antarctica's most iconic glaciers could be far more dramatic than scientists previously thought. Using satellite calibrated ice sheet models, a team of researchers from the University of Edinburgh found ...
Medical Xpress / The Alzheimer's gut-brain link: How butyrate could curb amyloid-β buildup and inflammation
Alzheimer's disease (AD) is a neurodegenerative disease that causes progressive memory loss and a significant decline in mental functions. Past studies have shown that people with AD exhibit a buildup of a protein called ...
Medical Xpress / Hope for preventing stomach cancer: Drug candidate proves extremely effective against H. pylori
Researchers at the Technical University of Munich (TUM) have increased the effectiveness of a standard antibiotic by a factor of 60 through targeted chemical modifications. In laboratory and animal studies, the new drug candidate ...
Phys.org / How humans took over the planet: The role of cultural evolution
Humans really do rule the world. We took over fast and far, more than any other wild vertebrates. We inhabit nearly every corner of the world, and can thrive in deserts, tropical rainforests and even extremely cold climates. ...