New research provides evidence for the significant differences between new and old red blood cells used for transfusions. The study found that older red blood cells have undergone 'significant changes and damage', compromising their cell membrane integrity, making them not useful for transfusions.
Research from Purdue University found that consuming red pepper can manage appetite and burn more calories after a meal, especially for individuals who do not consume the spice regularly. Red pepper consumption increased core body temperature and reduced hunger for fatty, salty, and sweet foods in non-regular consumers.
A recent study published in Ethology found that people with bloodshot eyes are perceived as sadder, unhealthier, and less attractive than those with untinted eye whites. The research tested 208 volunteers and showed that red eyes trigger perceptions of discomfort and affect how we perceive someone's emotional and biological state.
Astronomers have discovered a binary system consisting of two white dwarfs orbiting each other every 39 minutes. The stars are expected to collide and merge in 37 million years, resulting in the formation of a single star. This discovery marks the first time such an event has been observed.
The Kepler spacecraft provides clear views of changes in star brightness, allowing astronomers to probe a star's core and determine its density and chemistry. The mission helps understand the life cycle of red giant stars, including whether they burn hydrogen or helium in the core.
Research reveals that Red Nose Day's success lies in its ability to harness public enthusiasm, but major appeals do not contribute to long-term charity giving. Household donations have increased over the past two decades, with 28% of households donating in 2008 compared to 32% in 1978.
A three-year study on the Nauset Marsh Estuary's red tide problem begins next week. The researchers will collect water samples and analyze them for concentrations of toxic algae to better understand environmental factors influencing the incidence of red tides.
Researchers found that inhaling red mud disaster dust is unlikely to cause serious health problems, but may lead to irritation and coughing. The study suggests that the large size of the particles makes them less likely to be inhaled deeply into the lungs.
Researchers at Cleveland Clinic's Lerner Research Institute found that combining resveratrol with rapamycin suppresses tumor growth in breast cancer cells. Resveratrol, a compound in red wine, mitigates rapamycin-induced resistance and promotes anti-tumor activity.
Scientists report that red mud's high alkalinity and salt content are the main threats to crop growth, not toxic metals or radioactivity. Adding gypsum can reduce alkalinity and accelerate salt removal, recommending long-term monitoring of metal levels in crops.
A Boston College study found that Red Bull's brand identity affects consumers' behavior in video games, with some players speeding up and others crashing. The 'Red Bull effect' shows how non-conscious brand priming can shape consumer performance.
A new extraction method using green chemistry has been developed to recover pigmented carotenoids from dried Capsicum fruit, with a recovery rate of 85% or greater. This process reduces the use of hazardous solvents and minimizes environmental risks, enabling a wider range of red-fruited cultivars to be used for pigment production.
The Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) PS1 telescope has discovered ten Kuiper Belt residents, ranging in size from 180 to 300 miles, and is expected to find a whole range of objects including dwarf planets and comets.
Astronomers have discovered a supermassive black hole in a nearby dwarf galaxy, Henize 2-10, which is thought to be one of the first galaxies to form in the early Universe. The finding suggests that supermassive black holes formed before their surrounding galaxies, challenging current understanding of galaxy evolution.
Researchers have identified a new drug class that can enhance red blood cell production in anemic patients, potentially treating Diamond-Blackfan anemia and other conditions. The discovery was made by determining how corticosteroids act to increase the production of red blood cell progenitors.
Astronomers at Yale University have discovered that small red dwarfs are much more prolific than previously believed, increasing the total number of stars in the universe. The discovery found 20 times more red dwarfs in elliptical galaxies than in the Milky Way, with potential implications for galaxy formation and evolution.
Dr. Karine Le Roch is investigating how malaria parasite multiplies in red blood cells using a $1.7 million NIH grant. The goal is to develop more effective strategies against this devastating disease, with potential new drug strategies also being explored.
Astronomers have discovered a neutron star with twice the mass of our Sun, ruling out certain theoretical models for its internal composition. The discovery has significant implications for astrophysics, nuclear physics, and our understanding of matter at extreme densities.
A new computer simulation by Gurtina Besla and her colleagues shows that the Magellanic Stream resulted from a past close encounter between the Large and Small Magellanic Clouds, rather than the Milky Way's gravity. The study challenges traditional models of galaxy formation.
A study published in the Journal of Experimental Psychology: General found that wearing red or being bordered by the color increases a man's attractiveness and sexual desirability among women. The researchers attribute this effect to the cultural association between red and high status, as well as biological roots in human behavior.
Researchers discovered a new biological pathway where microRNA helps protect red blood cells from injury caused by chemicals called free radicals. The study found that the microRNA regulates gene activity by acting on an unexpected signaling pathway, which may have medical implications beyond blood cell development.
Researchers at UT Southwestern Medical Center discovered a tiny RNA fragment, miR-451, that regulates red blood cell production. By inhibiting this process, they hope to develop new treatments for cancers and anemia.
Astronomers have discovered a brown dwarf companion to a young sun-like star, PZ Tel A. The discovery reveals the early stages of solar system formation and provides insights into planetary formation.
Scientists investigate white dwarf remnants and binary systems to understand supernovae origins. However, the search for accreting white dwarfs yields few results, leading researchers to reconsider their theories.
Researchers at Boston Children's Hospital found a gene that regulates transcriptional elongation, enabling the body to rapidly produce mature red blood cells. This discovery may have implications for treating severe anemia and leukemia by understanding how the body can quickly switch on production of red cells.
Researchers at UAB will investigate the mechanisms behind red blood cell interactions with nitric oxide, shedding light on potential negative effects of older stored blood units on circulation and immune response. The goal is to design therapies to prevent transfusion-related toxicities.
The NHLBI is funding nine research grants to examine the effects of red blood cell storage time on patient outcomes. A large clinical trial, RECESS, will compare heart surgery patients' outcomes based on stored red blood cells' age.
Researchers have identified the complement receptor 1 (CR1) as an alternative protein used by the malaria parasite to invade red blood cells. This finding has significant implications for the development of a vaccine against malaria, and may help prevent the proliferation of parasites that rely on this pathway.
A University of Alberta researcher discovered female red squirrels adopt abandoned babies with common genes, ensuring the continuation of their gene pool. This behavior, initially thought to be unique to social animals, reveals a rare instance of altruism in solitary creatures like red squirrels.
Researchers at Walter and Eliza Hall Institute identify heparin-like carbohydrates that block malaria parasite's attachment to red blood cells, offering new potential for anti-malarial drugs. The study provides hope for developing effective treatments against the disease, which affects millions worldwide.
Researchers at EMBL identified microRNAs MiR144 and MiR451 as crucial regulators of efficient red blood cell formation. These molecules help fine-tune genes involved in haematopoiesis, allowing for stable oxygen transport under challenging conditions.
The discovery of SN2005E reveals a supernova whose origin cannot be explained by any previously known mechanism. It is rich in helium and surprisingly different from typical white dwarf systems.
A team of UCSB astrophysicists has discovered a unique eclipsing binary star system, confirming a theory about white dwarf stars. The researchers measured the size of a rare helium-core white dwarf for the first time, revealing it burns hotter and is larger than ordinary white dwarfs.
Mediterranean red coral populations thrive in three decades-old Marine Protected Areas, but future conservation efforts may be needed to ensure species resilience. The areas have proven effective in conserving this slow-growing species.
A team of researchers from the University of Bonn has confirmed that Magyarosaurus dacus was a dwarf sauropod dinosaur, contrary to earlier theories that it was just a juvenile. The study reveals that dinosaurs on islands underwent the same ecological and evolutionary processes as modern mammals.
Red and pink coral are in steep decline due to overharvesting; governments failed to grant trade protection despite scientific evidence. Conservationists urge the jewelry and design industries to act where governments have failed.
A newly discovered star in the Sculptor dwarf galaxy has a chemical makeup similar to the Milky Way's oldest stars, lending support to the 'bottom-up model' of galaxy formation. The star's unusually low metal abundance resembles those of old Milky Way stars, further validating the theory.
Scientists have discovered a relic star from the early universe, which has a remarkably similar chemical composition to the Milky Way's oldest stars. The discovery supports the theory that our galaxy underwent a 'cannibal' phase by swallowing smaller galaxies and other galactic building blocks.
A study led by Queen's University astronomer Terry Bridges reveals that up to a quarter of the Milky Way's star clusters are foreign, originating from other galaxies. The research suggests six additional dwarf galaxies may exist within the galaxy beyond the two previously confirmed.
Researchers at Walter and Eliza Hall Institute have identified Plasmepsin V as a key survival protein used by the malaria parasite to transform human red blood cells. This discovery offers a clear target for developing a new class of anti-malarial drugs that destroy the parasite, providing hope for combating the disease.
A team of researchers has resolved a long-standing conflict in the theory of galaxy formation, using millions of hours of supercomputer simulations. The study reveals that cosmic explosions, such as supernovas, play a key role in preventing the formation of stars and dark matter at the centers of dwarf galaxies.
Researchers found two brown dwarf-sized masses around an ordinary star, which is extremely rare. The discovery suggests that planets may assemble around stars more quickly and efficiently than thought possible.
Astronomers have discovered a 'super-Earth' orbiting a red dwarf star 40 light-years from Earth. The planet, GJ1214b, is about 6.5 times as massive as the Earth and orbits its star once every 38 hours.
Researchers have found that infectious HIV-1 virus particles can bind to the surface of red blood cells, significantly increasing their infectivity. This discovery suggests that erythrocytes may serve as a hidden reservoir for infectious HIV-1 virions.
A faint star Alcor has been found to have a smaller red dwarf companion, orbiting it every 90 years. The discovery was made using the 'common parallactic motion' technique developed by Project 1640, which measures the movement of nearby stars relative to more distant ones.
Stiffer and stickier red blood cells cause anemia and joint pain in malaria patients. Researchers developed models to predict the disease's progression by analyzing temperature fluctuations and cell stiffness.
Researchers have found two Earth-sized bodies with oxygen-rich atmospheres, which are not planets but rather unusual white dwarf stars. The discovery was made using data from the Sloan Digital Sky Survey and suggests that these stars may have descended from massive progenitor stars.
Astronomers have discovered a possible new type of supernova that occurs when helium flows onto a white dwarf, causing a thermonuclear explosion. The object, dubbed SN 2002bj, is characterized by its rapid rise and fall and strong helium signature.
Researchers found that iron naturally occurring in red wine causes the unpleasant fishy aftertaste when paired with fish. Low-iron red wines might be a suitable match for seafood, contrary to the traditional rule of thumb.
A team of researchers has created the first full-star simulation of a white dwarf star's final hours leading up to a Type Ia supernova explosion. The simulations, run on supercomputers, provide detailed insights into the process and may be critical in understanding how these massive stellar explosions occur.
A recent study published in Critical Care found that severe trauma patients who receive old red blood cells are twice as likely to die. The study, which analyzed data from 202 patients, suggests that using fresher red blood cells may reduce mortality rates and complications.
Astronomers have discovered the first close-up of a white dwarf star orbiting a companion star, set to explode into a supernova in a few million years. The white dwarf is unusual, with twice its expected mass and a diameter half that of Earth.
Researchers have successfully modified a human embryonic stem cell line to glow red when it becomes a red blood cell, representing a significant step towards generating mature red blood cells from human stem cells. This breakthrough could aid in tracking the differentiation of embryonic stem cells into specific cell types.
Astronomers have discovered a mechanism for the formation of dwarf spheroidal galaxies, which are thought to be composed mostly of dark matter. The 'cosmic dance' of gravitational interactions between galaxies may trigger the removal of stars from smaller dwarf galaxies, transforming them into the observed dwarfs.
Scientists are synchronizing lenses of the Whole Earth Telescope network to monitor a white dwarf, shedding light on its composition and applying knowledge to Earth's weather. The star, WDJ1524-0030, is losing brightness as it cools, with astronomers studying its pulses to understand internal movements.
New calculations suggest hundreds of massive rogue black holes are left over from the early universe, potentially wandering the Milky Way's outer reaches. These relics could provide clues about galaxy formation history and the formation of black holes in the early universe.
Researchers discovered that red pandas prefer artificial sweeteners like aspartame, which may reflect unique structural variations in their sweet taste receptor. This finding could lead to insights into individual differences in human taste function and nutritional health.
A new study published in Cancer Epidemiology, Biomarkers and Prevention found that red wine had no effect on breast cancer risk. Women who consumed moderate amounts of alcohol had a higher risk of breast cancer, regardless of the type of drink.
A new red raspberry cultivar, 'Moutere', has been developed in a planned breeding program at The New Zealand Institute of Plant and Food Research Limited. This variety is characterized by high yields of large, uniform size, bright red berries suitable for early season consumption.
Astronomers have identified a new type of dwarf galaxy, formed out of pristine gas without dark matter. Led by Johns Hopkins University, the discovery was made using the Galaxy Evolution Explorer and suggests that these galaxies may be common throughout the early universe.