Japan's Ryukyu Islands, which includes Okinawa, are the exclusive home to two rare mammals, the Amami rabbit and Ryukyu long-furred rat. These animals are hard to observe, but conservationists wish to find out specific details about their diets. So researchers inspected the teeth from deceased specimens to find out what the animals were eating, and at different times. Their findings show the rabbits have consistent diets, whereas the rats' change... Read more ›
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Researchers discovered the blood vessels at the back of the eye -- called retinal microvasculature -- can show early signs someone is at risk of developing dementia. Read more ›
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Researchers have developed a handheld device that could potentially replace stethoscopes as a tool for detecting certain types of heart disease. Read more ›
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Two undergraduate medicine students have led a major study examining how cardioprotective glucose-lowering therapies -- medications that lower blood sugar and reduce the risk of heart disease in people with diabetes -- affect the risk of developing dementia. Read more ›
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Although sedentary behavior may be an evolutionarily selected trait, it is still important to try to be physically active, says a new study. Researchers have shown for the first time that genetic predisposition to sedentary behavior is associated with a higher risk of developing the most common cardiovascular diseases. A high genetic predisposition to sedentary behavior can increase the risk of cardiovascular diseases by up to 20%. Read more ›
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While the daily ebb and flow of people across a city might seem chaotic, new research reveals underlying universal patterns. A study unveils fundamental spatiotemporal scaling laws that govern these population dynamics. Read more ›
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Ecologists are investigating the decline of insect populations in the world's tropical forests. Insects, the most abundant and diverse group of animals on Earth, are experiencing alarming declines, prompting this research effort. Read more ›
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Calcium transport into and out of mitochondria -- the powerhouses of cells -- is central to cellular energy production and cell death. To maintain the balance of calcium within these powerhouses, cells rely on a protein known as the mitochondrial sodium-calcium exchanger, or NCLX. Now, in new research, scientists have discovered a novel regulator of NCLX activity, a protein called TMEM65, which helps move calcium out of mitochondria, protecting against... Read more ›
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Every galaxy is thought to form at the center of a dark matter halo. Stars are formed when gravity within dark matter halos draws in gas, but astrophysicists don't know whether star-free dark matter halos exist. An Diego astrophysicist has calculated the mass below which halos fail to form. Read more ›
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Just steps from the center of Tikal, a 2,400-year-old Maya city in the heart of modern-day Guatemala, a global team of researchers has unearthed a buried altar that could unlock the secrets of a mysterious time of upheaval in the ancient world. The altar, built around the late 300s A.D., is decorated with four painted panels of red, black and yellow depicting a person wearing a feathered headdress and flanked... Read more ›
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When faced with a potential threat, mice often freeze in place. Moreover, when two animals are together, they typically freeze at the same time, matching each other's periods of immobility. In a new study, researchers found that coordination during fear looks different in males and females. Read more ›
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Organoids are made to model human organs and are promising for research and therapy, but there are limitations in their growth and function. A recent study found that placenta-derived IL1 under hypoxic conditions, can greatly increase growth of human stem cell-derived liver organoids. By promoting liver progenitor cell expansion through a specific signaling pathway, this method offers a promising route to improve organoid models and regenerative medicine. Read more ›
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Researchers have identified a new molecular target for treating pancreatic cancer. Scientists focused on transcription-replication conflicts (TRCs), which occur when the mechanisms responsible for gene expression and genome duplication collide. The clash disrupts cells' ability to read and copy genes, leading to replication stress, a frequent phenomenon in pancreatic cancer. The added stress causes cells to make errors copying their DNA, enabling cancer to gain a foothold and spread. Overall,... Read more ›
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Researchers have shown that differences in the entire rotavirus genome -- not just its two surface proteins -- affect how well vaccines work, helping to explain why some strains are more likely to infect vaccinated individuals. Read more ›
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A new study shows a compound found in certain fruits and vegetables could hold key to treating neurodegenerative diseases. Read more ›
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A researcher spent a year living in a jjokbang-chon, an extremely impoverished neighborhood in Seoul, South Korea. While there, he calculated residents' carbon footprints, finding they contribute much less to climate change than their fellow citizens, and detailed how they suffer the effects of extreme heat and other climate issues. He advocates for social work to take a role in addressing such climate injustice in a way that does not... Read more ›
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A new way to watch catalytic reactions happen at the molecular level in real time could lead to better fundamental understanding and planning of the important reactions used in countless manufacturing processes every day. Read more ›
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Researchers have worked to optimize the use of coffee grounds in pour-over coffee. They recommend pouring from as high as possible while still maintaining the water's flow. In particular, the group found the thick water jets typical of standard gooseneck kettles are ideal for achieving this necessary height and laminar flow. Displaced grounds recirculate as the water digs deeper into the coffee bed, allowing for better mixing between the water... Read more ›
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In the first comprehensive, cell-by-cell analysis of brain tissue from individuals with Tourette syndrome, researchers have pinpointed exactly which cells are perturbed and how they malfunction, revealing how different types of brain cells are affected by the condition. Findings from this groundbreaking study provide unprecedented insights into the interplay of different brain cell types in Tourette syndrome, suggesting new therapeutic directions. Read more ›
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Experimental drug NU-9 -- a small molecule compound approved by the U.S. Food and Drug Administration (FDA) for clinical trials for the treatment of amyotrophic lateral sclerosis (ALS) -- improves neuron health in animal models of Alzheimer's disease, according to a new study. Read more ›
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16.06.2026 10:31
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