Articles tagged with Iron
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Scientists at the University of Leeds discovered that acidic clouds can convert large particles of iron from dust into small, soluble nanoparticles that plankton can use. This finding highlights a previously unknown source of bioavailable iron delivered to the Earth's surface in precipitation.
Researchers have identified a link between the mutated FGFR4 protein and the spread of childhood cancer. Additionally, changes in iron levels are found to affect inflammation via the TLR4 pathway, while glial cells play a crucial role in stimulating red blood cell production.
Researchers have developed a method to control the formation of carbon nanotubes, which can be used as semiconductors or metals. The breakthrough could lead to more powerful, compact and energy-efficient computers and ultra-thin electronic circuits.
Researchers from the National Oceanography Centre have made significant discoveries using iron isotopes to study sediment respiration and iron cycling processes in the deep-sea. The findings provide new insights into iron's role in the ocean's carbon cycle and its impact on climate.
Rice University chemist Bob Hauge's team creates bundles of SWNTs using a novel printing process, yielding a high yield of nanotubes. The process could lead to large-scale production of meter-long strands of nanotubes.
Two papers published in APS Physics journals describe different electron behavior in iron-based superconductors, suggesting distinct origins. The findings challenge theories on the similarities between these materials and cuprates, potentially altering the direction of research in this field.
In the high-latitude North Atlantic, low iron availability unexpectedly limits summer biological production. Experimental results show that adding iron increases photosynthetic efficiency and growth of phytoplankton, but insufficient iron is available to support the bloom.
A study by UC Davis geochemists has produced the first picture of how different isotopes of iron were initially distributed in the solid Earth 4.5 billion years ago. The discovery could lead to investigations into the evolution of Earth's mantle and its geologic history.
The collaboration aims to better understand the industry's needs and ensure expertise and capabilities are used effectively. BHP Billiton plans to relocate 15 researchers to the Queensland Centre for Advanced Technologies from July 2009.
A new study published in American Journal of Hematology finds that iron chelation therapy is not a reliable predictor of patient survival. Instead, degree of anemia and need for red blood cell transfusion at diagnosis are stronger predictors.
Researchers measured carbon particles from plankton blooms in the Southern Ocean, finding most don't reach the deep ocean. Plankton blooms stimulate carbon capture, but carbon tied up in plankton doesn't sink far or fast.
A new study found that iron deficiency in womb may delay auditory neural maturation in preemies, affecting sound processing and later language development. The research evaluated 80 infants over 18 months, revealing abnormal brain maturity in those with low iron levels.
Researchers found that the last atom in a line of single-atom contacts behaves differently than expected, altering the defining properties of ferromagnetic metals. The Kondo effect is observed in these tiny contacts, contradicting conventional wisdom about metal behavior at the nanoscale.
Researchers have constructed a systems biology map of iron metabolism, a crucial process in animal cell survival. The study aims to improve our understanding of iron regulation and its potential manipulation for therapeutic benefits.
Combining a mainstay antibiotic with drugs to deprive bacteria of iron boosts infection killing, according to Dartmouth researchers. Their study found that using two FDA-approved iron chelators and tobramycin eradicated biofilms by 90 percent.
Researchers at the University of Toronto have created a new green catalyst using iron that could replace expensive and toxic platinum metals in industrial chemical processes. This breakthrough has the potential to significantly reduce costs associated with drug production by avoiding costly purification techniques.
Researchers at Duke University Medical Center have identified a signaling pathway that initiates the flushing response associated with nicotinic acid. Analysis of human cell lines revealed that beta-arrestin proteins play a key role in this process, which may be targeted to prevent side effects while maintaining therapeutic benefits. I...
Researchers at the University of Utah developed a new method to locate trapped miners in collapsed mines by installing seismic listening devices on the ground. The system uses unique 'fingerprints' generated by miners banging on iron plates to pinpoint their location, showing promising results in tests.
Researchers found that high levels of iron cause oxidative stress and lead to the death of cancer cells. The study suggests a novel approach for treating cutaneous T cell lymphoma by selectively releasing iron.
Researchers at Diamond Light Source have developed a new technique using X-ray eyes to map metal distribution in brain tissue, which could lead to early diagnosis and treatment of Parkinson's disease. By studying the distribution of metal ions in affected regions, scientists hope to improve MRI detection and diagnosis.
Researchers discovered that iron spewed out of hydrothermal vents remains protected and usable by ocean organisms due to a complex matrix of carbon compounds. This finding challenges current paradigms about the iron cycle and opens up new research directions.
A team of scientists has made a groundbreaking discovery that challenges the long-held assumption about oceanic iron cycles. They found that organic compounds can capture some iron spewed by hydrothermal vents, enabling it to be carried away in seawater and reaching the surface, where it can nourish marine life more efficiently.
A University of Minnesota-led study connects iron sources from extreme depths to surface life, shedding light on nutrient cycling. Researchers found that hydrothermal vents release rusty iron, which can provide essential nutrients for sea life.
Scientists found that natural iron fertilization enhanced phytoplankton growth and productivity in the Southern Ocean, leading to two to three times more carbon export to the deep ocean. The research suggests that ocean islands are a key source of iron for these blooms.
A phase 3 clinical trial has shown that ferumoxytol, a novel intravenous form of iron, is effective in treating iron deficiency in CKD patients on dialysis. The study found significant improvements in hemoglobin levels compared to oral iron supplementation.
A study by Vanderbilt University researchers found a surprising link between brain iron levels and serotonin, a neurotransmitter involved in neuropsychiatric conditions. The team identified multiple trait differences affected by the SERT GK/ER variation, including traits associated with alcohol consumption and brain dopamine signaling.
Research found a high prevalence of gluten-sensitive enteropathy (GSE) in patients with iron deficiency anemia of unknown origin. A gluten-free diet improved anemia in GSE patients with mild duodenal lesions, suggesting GSE as a potential cause of iron-deficient anemia.
Only 3% of fast-food kids' meals met federal dietary guidelines, with fruit as a side dish and milk being common, while most exceeded sodium and added sugar limits. Researchers call on the industry to develop nutritious options and parents to make informed choices.
Ariel Anbar's research focuses on how changes in ocean element abundances influenced life, ecosystems, and evolution on Earth. He examines sedimentary rocks to infer past ocean compositions and investigates the role of essential nutrients like iron, sulfur, and copper.
Scientists at Carnegie Institution's Geophysical Laboratory found that highly oxidized iron in mantle minerals is crucial for heat transfer in the lower mantle. The discovery challenges current models of mantle dynamics and has significant implications for understanding material movement throughout the planet.
Using two million pounds of iron, researchers improved pollutant levels by 87%, removing BOD, nitrogen, phosphorus, and colors from industrial wastewater. The low-cost iron-based method has great potential for developing countries.
Scientists have created a new compound that selectively kills cancer cells while sparing healthy cells, offering hope for more effective chemotherapy drugs. The compound targets cancer cells' high iron levels, delivering toxic molecules that ultimately lead to cell death.
Researchers are studying the effects of lunar dust on the respiratory system and developing technologies to clean it from space suits. The powdery grey dirt is formed by micrometeorite impacts that can wreak havoc on equipment, but its unique properties also make it susceptible to magnets.
A glitch in iron transport may underlie Type IV mucolipidosis (ML4) and related symptoms like mental retardation and diminished motor abilities. The same deficit is also implicated in aging and neurodegenerative diseases such as Alzheimer's and Parkinson's, leading to potential new avenues for treatment.
A study published in PLoS One found that a restricted-calorie diet can reduce iron accumulation in muscle cell mitochondria, which can contribute to muscle loss in aging adults. The research suggests that reducing caloric intake early on may help limit muscle wasting in later years.
Adding intravenous iron to chemotherapy-induced anemia treatment boosts response rates by up to 50% and reduces treatment duration, according to a new study. Lower doses of darbepoetin alfa also show improved results with the addition of iron therapy.
Researchers at UCLA and Intrinsic LifeSciences have developed the first method to directly measure hepcidin, a hormone that regulates iron absorption. The new blood test will help clinicians diagnose conditions like anemia of chronic disease and hemochromatosis more efficiently.
Researchers have adapted a human test to screen for elevated iron levels in marmosets and tamarins, enabling early identification and treatment of hemosiderosis. This diagnostic tool also helps veterinarians provide tailored care to individual animals.
Researchers at the University of Utah have developed a rapid test for hepcidin, which helps diagnose anemia related to chronic illness and diseases of iron overload. The test can distinguish between causes of iron overload, enabling doctors to provide more accurate diagnoses.
Researchers found that certain bacteria can harness iron from the environment or human host using a unique gene. This discovery could lead to new ways to target diseases like tuberculosis by limiting access to essential iron sources.
Researchers at Dartmouth College have identified a crucial gene involved in chloroplast iron acquisition and efficient photosynthesis. The FRO7 gene is essential for plants to take up iron from the soil, particularly in iron-deficient conditions.
Researchers found that reducing iron blood levels in men with peripheral arterial disease is associated with a decreased incidence of cancer. The study, published in the Journal of the National Cancer Institute, suggests that iron catalyzes the production of free radicals that damage cellular components, including DNA.
MESSENGER data reveals widespread volcanism on Mercury's surface, with lava plains and iron-deficient rock units mapped. The spacecraft has identified three major rock units and confirmed an apparent planet-wide iron deficiency in Mercury's surface rocks.
Researchers have discovered wheel-shaped structures with octa- and enneacoordinate planar cobalt, iron and nickel centered in perfect octagonal and enneagonal boron rings. The stability of these structures is attributed to the contribution from two kinds of orbitals, resulting in aromaticity with six delocalized p electrons.
Researchers at Helmholtz Centre for Infection Research identify enzyme that requires acids and dissolved metals to function, repairing genetic damage under extreme conditions. This discovery opens up new possibilities for biotechnological applications and potential treatments for diseases characterized by over-acidification.
Scientists have discovered a new tool for reconstructing planetary origins using iron isotopes in lava samples from the Kilauea Iki crater. The findings contradict previous views on isotopic variations and provide evidence for a giant collision between Earth and another large object to form the moon.
Researchers found that cells lacking iron reorganize their metabolism to use less efficient glucose-based pathways, producing lower energy levels. This mechanism may help explain human responses to iron deficiency and potentially aid in diabetes research.
Researchers at Montana State University have created the first three-dimensional map of the Steap3 protein, which regulates iron absorption. This breakthrough could lead to the development of targeted drugs for hemochromatosis and iron deficiency conditions.
Researchers developed nanoparticles consisting of metallic iron with a protective carbon coat that could serve as a safe and effective hyperthermia agent. The carbon coating prevented the iron from rusting, allowing heating at greater temperatures and reducing cytotoxic effects on normal cells.
A new study by the University of Michigan suggests that extra iron for infants who don't need it may delay their cognitive and visual-motor development. The study found that 5% of Chilean infants with high hemoglobin levels at 6 months showed poorer outcomes in IQ, visual-motor integration, and other measures.
Dr. Jane Brotanek, a pediatrician at UT Southwestern Medical Center, has received a two-year grant from the Robert Wood Johnson Foundation to investigate the relationship between infant feeding practices and iron deficiency. Her research aims to identify factors contributing to iron deficiency in high-risk populations.
Using C. elegans, researchers identified previously unknown proteins key to transporting heme in human blood and discovered genes involved in heme transport, which could lead to new treatments for iron deficiency. The findings suggest that understanding heme absorption is crucial for effective iron delivery in humans.
Researchers discovered a genetic cause for a rare form of inherited iron deficiency anemia, which may provide insights into iron deficiency in the general population and suggest new treatment approaches. The study identified a gene mutation in the TMPRSS6 protein, leading to excessive hepcidin production and impaired iron absorption.
Researchers Phoebe Lam and James Bishop found that the Kamchatka Peninsula and Kuril Islands are the key sources of iron in the Western North Pacific, contrary to previous assumptions. This discovery has significant implications for understanding climate change and the role of iron in the ocean carbon cycle.
Researchers found hepcidin expression positively associated with stage of colorectal disease and also expressed in a subset of colorectal cancer tissues. This suggests that cancer cells sequester iron to feed their high metabolic activity, perpetuating the cancer phenotype.
Scientists have discovered that a chunk of hematite can conduct electrons when exposed to the right chemical conditions. This phenomenon, linked to mineral surfaces, has important implications for understanding soil evolution and environmental cleanup. The discovery challenges long-held assumptions about electron conduction in minerals.
Researchers found that transferrin protein aggregates into wormlike fibrils, releasing rust-like iron particles. These particles may contribute to neurodegenerative diseases by forming toxic free radicals and destroying nerve cells.
Researchers found that transferrin can assemble into worm-like fibrils when dried, exposing iron and potentially causing cell damage. This process may be linked to the deposition of iron in the brain and contribute to neurodegenerative diseases such as Parkinson's, Alzheimer's, and Huntington's.
Researchers discover hereditary hemochromatosis is a liver disease caused by a genetic defect in the liver that leads to increased iron absorption. The study reveals that the liver cells make an iron hormone called hepcidin to regulate iron uptake, but a mutated HFE gene reduces its production, leading to iron overload.
A Purdue University archaeologist has uncovered an ancient iron ore mine in South America, showcasing the importance of hematite to ancient Andean civilizations. The discovery provides valuable information on the Nasca people's use of minerals for ceramic paints and other purposes.