A UCLA research team has discovered a new hormone called erythroferrone, which regulates the iron supply needed for red blood-cell production. Erythroferrone suppresses hepcidin, allowing more iron to be made available for red blood-cell production and potentially treating iron disorders.
A new study found that red wine and grape seed extract can help prevent cavities by slowing bacterial growth. The authors tested the effects under realistic conditions and found that red wine with or without alcohol was most effective at getting rid of bacteria.
A study by Deanna Soper and colleagues found that exposure to parasites increases mating behavior and promiscuity in New Zealand freshwater snails. This supports the Red Queen hypothesis, which suggests that sexual reproduction helps organisms adapt to a changing environment by increasing genetic diversity.
Astronomers have discovered the coldest known brown dwarf star, located just 7.2 light-years from our solar system. The object, named WISE J085510.83-071442.5, has a temperature between -54 and 9 degrees Fahrenheit, making it even colder than previous record holders.
Genetic evidence reveals that dwarf birch was once common in England and Wales, with genes found across Britain. The study suggests global warming, deer grazing, and hybridisation are threats to the dwindling population.
A study published in Blood demonstrated that the C1s antibody prevents the destruction of human red blood cells exposed to patient autoantibodies in cold agglutinin disease. The antibody inhibits Complement deposition on the red blood cell membrane, preventing macrophage engagement and lysis.
Researchers found that red panda skulls are better at distributing mechanical stress during chewing, while giant panda skulls can withstand greater forces. These differences reflect distinct bamboo feeding preferences, with the giant panda eating harder and larger pieces of bamboo.
The study found that 660 nm red light promotes the migration of bone marrow mesenchymal stem cells, enhancing their contribution to treating hypoxic-ischemic brain damage. After phototherapy and cell transplantation, rats showed a significantly increased active avoidance response rate.
Researchers analyzed stomach contents of pygmy and dwarf sperm whales to better understand their feeding ecologies. The study found that while the two species share similar foraging parameters, pygmy sperm whales consume a greater diversity and size of prey.
Researchers have shed light on the red widow spider's restricted diet, revealing it primarily preys upon five species of scarab beetles endemic to the Florida scrub habitat. This finding highlights the need for habitat conservation efforts in this unique ecosystem.
Researchers found that low oxygen and nitric oxide levels increase red blood cell adhesion to blood vessel walls, leading to debilitating pain crises in sickle cell patients. Restoring normal nitric oxide levels can substantially reduce this adhesion, making it a potentially new therapeutic target.
A recent perspective paper cautions about uncertainties in scientific evidence linking red and processed meat to increased cancer risk. The review discusses differences between animal studies and human data, suggesting that other foods may protect the gut from potential adverse effects of meat.
A new analysis of normal Type Ia supernovae reveals a range of masses, most near or below the Chandrasekhar limit. The SNfactory team used spectrography to 'weigh' the leftover debris, comparing masses and factors with light curves.
Researchers from the Niels Bohr Institute detected a stream of stars in Andromeda II, revealing a remnant of a merged dwarf galaxy. The findings provide insight into the rare event of low-mass galaxy mergers, which are expected during galaxy formation.
A team of astronomers has successfully mapped the surface features of Luhman 16B, a brown dwarf located six light-years from Earth. The new results reveal dark and light patches on the surface, which can be used to study weather patterns in other solar systems.
Researchers at Penn Medicine discovered a new shape of red blood cells when they are compressed during clot formation. The polyhedral structures, also known as polyhedrocytes, are tightly packed within the clot interior and may help explain why clots develop resistance to thrombolytic agents.
Astronomers have discovered a 3-star system that challenges the strong equivalence principle in Albert Einstein's theory of General Relativity. The system, consisting of two white dwarf stars and a superdense pulsar, allows for precise timing observations to test the theory's validity.
Astronomers have found a rare stellar system featuring a neutron star, two white dwarf stars, in an incredibly close orbit. By measuring the gravitational perturbations in this system, scientists can gain insights into the nature of gravity and potentially detect problems with General Relativity.
Research suggests a link between red meat and increased risk of gestational diabetes in pregnant women. Women are advised to consume more vegetable protein, nuts, and fish, while replacing some red meat with poultry.
A study by the University of Liverpool found that red squirrel populations along the Sefton coastline are recovering from a serious outbreak of squirrelpox in 2008. Researchers have identified a few surviving squirrels with antibodies to the virus, suggesting some resistance to the disease.
Researchers found that a mixture of blue and red LEDs enhances lettuce growth rate, biomass accumulation, and antioxidant compound production. Red LED alone stimulates biomass but induces abnormal leaf shape and negative effects on antioxidants.
Researchers at Intermountain Medical Center Heart Institute discovered a link between high RDW levels and increased risk of depression in heart patients. Elevated RDW is associated with poor outcomes, including heart attacks and death, and may indicate anemia or other underlying conditions.
Scientists Pedram Hassanzadeh and Philip Marcus present a new model explaining the Great Red Spot's persistence, suggesting vertical flow plays a key role. The model also predicts radial flow pumping energy into the vortex, enabling it to last longer.
A study using phylogenetic analysis maps out the evolution of folk tales, revealing that Little Red Riding Hood shares a common root with The Wolf and the Kids, which originated in the 1st century AD. The research sheds light on the migration patterns of humans in ancient times by determining the origins and evolution of folk stories.
A study found that green poison-dart frogs vary their mating calls according to the availability of potential mates, adjusting their behavior to balance the risk of predation and securing a mate. In certain contexts, green males appear more conspicuous to females than red males, but less visible to predators.
SPIRou, a near-infrared spectropolarimeter and high-precision velocimeter, will detect habitable Earth twins orbiting nearby red dwarf stars and study the formation of Sun-like stars and their planets. The instrument's advanced technology will reveal the existence of liquid water on planetary surfaces.
Researchers have found evidence of a water-rich rocky planetary body in the shattered remains of a planet that once orbited a white dwarf star. The discovery marks the first time water has been pinpointed in a rocky body outside our solar system, providing insights into the formation and evolution of habitable planets.
The recently discovered ultra-compact dwarf galaxy M60-UCD1 has a density of stars about 15,000 times greater than in the Milky Way. The galaxy's central bright X-ray source suggests a massive black hole weighing 10 million times the sun's mass.
New research reveals that 'red nugget' galaxies, previously thought to be extinct, were actually hidden within previous survey data. These compact galaxies may represent a missing link between distant 'red nuggets' and nearby elliptical galaxies.
Researchers studying hibernating fat-tailed dwarf lemurs found they can go days without deep sleep during winter hibernation. This supports the idea that sleep regulates body temperature and metabolism in humans.
Researchers found that dwarf lemurs experience REM sleep at high temperatures, while ground squirrels do not, suggesting a link between temperature and metabolism. The study confirms that hibernation is not a state of dormancy but rather a unique form of sleep.
Scientists discovered a surprising rebound in red spruce growth in New England, with trees growing at rates almost twice the average for the last 100 years. The study suggests that reductions in pollution made possible by the Clean Air Act of 1990 may be contributing to this turn-around.
The study found that shortening yellow duration and increasing speed limits increase the chance of drivers running a red light, while shortening cycle lengths do not impact safety. The researchers suggest a combination of strategies could produce adequate revenue without causing traffic delays or congestion.
Researchers from Mainz and Antananarivo have identified a previously unknown primate species, the Lavasoa Dwarf Lemur, with an estimated population size of less than 50 individuals. The newly described species inhabits isolated forest fragments in southern Madagascar and is considered extremely rare and endangered.
Researchers used the Hubble Space Telescope to measure alpha, the fine-structure constant, on a white dwarf star. They found no significant variation in alpha near the star and compared it with laboratory measurements.
A new test could use sound waves to diagnose blood-related diseases by analyzing the shape and size of red blood cells. Researchers have developed a method that can identify irregularly shaped red blood cells with high confidence, which is a significant indicator of blood-related diseases.
A new study by the University of Chicago and Northwestern University expands the habitable zone for alien planets orbiting red dwarfs, doubling the number of potentially habitable planets. The research suggests that up to 60 billion planets may be habitable in the Milky Way galaxy.
Engineers at Queen Mary University created a highly accurate simulation of how damaged and healthy red blood cells interact with each other in the body. This new technology could aid medical professionals in visualizing oxygen flow and identifying areas where patients may be suffering from inadequate oxygen supply after heart surgery.
Researchers from Brown University have developed computer models that show how different types of red blood cells interact to cause sickle cell crisis. The findings suggest that softer, deformable red blood cells known as SS2 cells start the process by sticking to capillary walls, leading to blockages.
A large-scale study published in JAMA Internal Medicine found that consuming more red meat over time increases the risk of developing Type 2 diabetes. The research followed over 149,000 participants and documented a 48% elevated risk for those who increased their red meat intake by more than 0.50 servings per day.
Researchers have discovered a tiny dwarf galaxy, Segue 2, with only 1,000 stars, offering insights into the formation of iron and other elements crucial for human life. The galaxy's size and weight are its most striking features, challenging astronomers' understanding of structure formation in the universe.
Researchers at Whitehead Institute have identified a protein that is the target of glucocorticoids, which increase red blood cell production in patients with certain types of anemia. The discovery could lead to the development of drugs capable of increasing this protein's production without causing severe side effects.
Astronomers have two opportunities to detect planets around Proxima Centauri using a rare stellar alignment. The closest encounters in October 2014 and February 2016 will allow scientists to measure the mass of the red dwarf, which could indicate the presence of smaller terrestrial planets.
A team of researchers used radio telescopes to precisely locate SS Cygni at 370 light-years from Earth, resolving a major problem in understanding the star's regular outbursts. The new distance measurement brings the system into line with standard explanations for similar systems.
A new study published in Psychological Science found that high-testosterone males are more likely to choose the color red when competing. The research suggests that this association may be related to biological systems and affect how opponents respond. However, actual performance in the competitive task was not influenced by color choice.
Researchers have discovered that two little-known lemur species in Madagascar burrow underground and hibernate for three to seven months. The study suggests that primate hibernation may not be as rare or unique as previously thought, offering insights into the behavior of these close genetic relatives.
A newly-discovered pulsar and its white-dwarf companion have provided physicists with a unique opportunity to study the nature of gravity, with General Relativity predictions holding up well under extreme conditions. The system's unique characteristics make it an unprecedented test for alternative theories of gravity.
Researchers have confirmed Einstein's theory of general relativity by observing a unique binary star system with a massive neutron star and a white dwarf. The study found that the system's gravitational waves match exactly what Einstein's theory predicts, providing strong evidence for the validity of the theory.
A team of scientists discovered a unique double object consisting of a massive neutron star and its white dwarf companion, pushing the limits of physical theories. The discovery offers an opportunity to test Einstein's general relativity with unprecedented precision.
Researchers propose that white dwarf stars can support habitable planets, allowing for detection of biomarkers like oxygen and methane. The James Webb Space Telescope will be capable of detecting these signs after only a few hours of observation time.
Researchers have developed a new technology called photoacoustic flowoxigraphy that allows for the measurement of oxygen in individual red blood cells in real-time. This breakthrough could lead to a better understanding of oxygen delivery to normal and diseased tissues, as well as how different disease therapies impact oxygen levels.
Researchers have found that macrophages help produce and eliminate red blood cells, which could lead to novel therapies for diseases affecting red blood cell balance. The study also showed that eliminating certain macrophages can normalize abnormal red blood cell counts in conditions like polycythemia vera.
A new study suggests that future evidence for extraterrestrial life might come from dying stars, specifically from planets orbiting white dwarfs. Detectable oxygen in the atmosphere of these planets could indicate the presence of life, and a recent simulation indicates JWST can detect this with only a few hours of observation time.
Researchers used Modified Newtonian Dynamics (MOND) to predict velocity dispersion in faint dwarf galaxies of Andromeda. In 16 out of 17 cases, their predictions matched the measured velocity dispersions, suggesting that MOND may be a viable alternative to dark matter.
Researchers identified HRG1 protein to safely transport heme-iron, a crucial component of red blood cells. This finding offers promise for new treatments for iron deficiency and parasitic worm infections.
Red tide alerts have been added to Beach Hazards Statements by NOAA, providing public warnings for moderate or high respiratory impacts and environmental threats in southwest Florida. The new service aims to broaden awareness about harmful algal blooms and their potential impacts on human health.
Researchers from the University of York and Universitat Politècnica de Catalunya have made significant discoveries about novae, explosive events driven by nuclear processes. The study's findings improve our understanding of key nuclear reactions and the final abundance of radioactive isotopes involved in these explosions.
Researchers at Case Western Reserve University have discovered a faint dwarf galaxy and another possible young dwarf galaxy in the constellation Ursa Major. They also found evidence pointing to two already known dwarf galaxies as probable forces that pulled the pinwheel-shaped disk galaxy, M101, out of shape.
The team used archival data from NASA's GALEX mission to study the galaxy's size and structure. They discovered a tidal dwarf candidate in the northeastern arm, which is bright in ultraviolet light and contains hot young stars less than 200 million years old.
A team of astronomers used the Spitzer and Hubble space telescopes to create the most detailed weather map yet for a brown dwarf. They found that the object has a stormy atmosphere with planet-sized clouds, similar to those on Earth. The research provides new insights into the atmospheres of brown dwarfs and exoplanets beyond our solar...