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Categories: Biology: Cell Biology, Offbeat: General
Published Ketogenic Diet may reduce friendly gut bacteria and raise cholesterol levels
(via sciencedaily.com) Original source A study reveals that ketogenic low-carbohydrate diets can increase cholesterol levels and reduce beneficial gut bacteria, specifically Bifidobacterium.
Published Carvings at ancient monument may be world's oldest calendars
(via sciencedaily.com) Original source Markings on a stone pillar at a 12,000 year-old archaeological site in Turkey likely represent the world's oldest solar calendar, created as a memorial to a devastating comet strike, experts suggest.
Published Smallest arm bone in human fossil record sheds light on the dawn of Homo floresiensis
(via sciencedaily.com) Original source A new study reports the discovery of extremely rare early human fossils from the Indonesian island of Flores, including an astonishingly small adult limb bone. Dated to about 700,000 years old, the new findings shed light on the evolution of Homo floresiensis, the so-called 'Hobbits' of Flores whose remains were uncovered in 2003 at Liang Bua cave in the island's west.
Published Horse miscarriages offer clues to causes of early human pregnancy loss
(via sciencedaily.com) Original source A study of horses -- which share many important similarities with humans in their chromosomes and pregnancies -- revealed that 42% of miscarriages and spontaneous abortions in the first two months of pregnancy were due to complications from an extra set of chromosomes, a condition called triploidy.
Published Astronomers uncover risks to planets that could host life
(via sciencedaily.com) Original source A groundbreaking study has revealed that red dwarf stars can produce stellar flares that carry far-ultraviolet (far-UV) radiation levels much higher than previously believed.
Published Hydraulic lift technology may have helped build Egypt's iconic Pyramid of Djoser
(via sciencedaily.com) Original source The Pyramid of Djoser, the oldest of Egypt's iconic pyramids, may have been built with the help of a unique hydraulic lift system, according to researchers. A new study suggests that water may have been able to flow into two shafts located inside the pyramid itself, where that water could have been used to help raise and lower a float used to carry the building stones.
Published Preventing Parkinson's disease may lie in seaweed antioxidants
(via sciencedaily.com) Original source A research team examined the effect of Ecklonia cava polyphenols on the prevention of Parkinson's disease. It was found that the oral intake of the seaweed antioxidants restores motor function and protects dopaminergic neurons in model mice, while cellular experiments revealed the biochemical interaction of their preventive effect.
Published Cracking the code of life: new AI model learns DNA's hidden language
(via sciencedaily.com) Original source With GROVER, a new large language model trained on human DNA, researchers could now attempt to decode the complex information hidden in our genome. GROVER treats human DNA as a text, learning its rules and context to draw functional information about the DNA sequences.
Published Why virus causing cold sores does not spread to devastating brain infection
(via sciencedaily.com) Original source A previously unknown defence mechanism in the brain prevents herpesvirus from infecting the brain's nerve cells.
Published Physicists develop new method to combine conventional internet with the quantum internet
(via sciencedaily.com) Original source Researchers send entangled photons and laser pulses of the same color over a single optical fiber for the first time.
Published 'Laser view' into the avocado: New method reveals cell interior
(via sciencedaily.com) Original source Checking whether an avocado is hard or soft by looking at it? This would require recognizing how the plant cells behave behind the skin. The same applies to all other cells on our planet: Despite more than 100 years of intensive research, many of their properties remain hidden inside the cell. Researchers now describe a new approach that can determine the particularly difficult-to-detect mechanical properties of the cell interior by taking a closer look.
Published Improving cat food flavors with the help of feline taste-testers
(via sciencedaily.com) Original source Cats are notoriously picky eaters. But what if we could design their foods around flavors that they're scientifically proven to enjoy? Researchers used a panel of feline taste-testers to identify favored flavor compounds in a series of chicken-liver-based sprays. The cats particularly enjoyed the sprays that contained more free amino acids, which gave their kibble more savory and fatty flavors.
Published Discovery of a new population of macrophages promoting lung repair after viral infections
(via sciencedaily.com) Original source Researchers have discovered a new population of macrophages, important innate immune cells that populate the lungs after injury caused by respiratory viruses. These macrophages are instrumental in repairing the pulmonary alveoli. This groundbreaking discovery promises to revolutionize our understanding of the post-infectious immune response and opens the door to new regenerative therapies.
Published Scientists pin down the origins of the moon's tenuous atmosphere
(via sciencedaily.com) Original source Scientists say they have identified the main process that formed the moon's atmosphere and continues to sustain it today. The team reports that the lunar atmosphere is primarily a product of 'impact vaporization.'
Published New compound effective against flesh-eating bacteria
(via sciencedaily.com) Original source Researchers have developed a compound that is effective against common bacteria that can lead to rare, dangerous illnesses.
Published Allergy cells' hidden secret
(via sciencedaily.com) Original source Known for their role in allergic reactions, mast cells have long been recognised as key players in our immune system. When they encounter allergens, they release chemicals that trigger typical allergy symptoms such as tissue swelling and inflammation. Now, researchers have discovered a hidden talent of mast cells: they can capture and use another type of immune cell called neutrophils. This surprising discovery sheds new light on how our immune system works, particularly during allergic reactions.
Published Reduction in folate intake linked to healthier aging in animal models
(via sciencedaily.com) Original source Scientists found that decreasing folate intake can support healthier metabolisms in aging animal models, challenging the conventional belief that high folate consumption universally benefits health.
Published Coinfecting viruses impede each other's ability to enter cells
(via sciencedaily.com) Original source The process by which phages -- viruses that infect and replicate within bacteria -- enter cells has been studied for over 50 years. In a new study, researchers have used cutting-edge techniques to look at this process at the level of a single cell.
Published Ancient Antarctic microorganisms are aggressive predators
(via sciencedaily.com) Original source Antarctic dwelling single-celled microorganisms called archaea can behave like parasites, new research shows.
Published Circular RNAs: The new frontier in cancer research
(via sciencedaily.com) Original source Unravelling the complexities of circular RNAs (circRNAs) in cancer biology has positioned scientists on the cusp of revolutionary breakthroughs in the diagnosis and treatment of cancer. A new study predicts remarkable potential for circular RNAs to improve cancer treatment and patient outcomes within the next 5-10 years.