Undersea anchors of ice that help prevent Antarctica’s land ice from slipping into the ocean are shrinking at more than twice the rate compared with 50 years ago, research shows.
A new study led by the University of Oxford has found that a high proportion of SARS-CoV-2 infections in the general population lead to persistent infections lasting a month or more. The findings have been published today in the journal Nature.
Scientists report a major step toward a simple blood test for Alzheimer’s disease. Researchers at Washington University School of Medicine in St. Louis and Lund University in Sweden showed that a blood test is as good at identifying people in early stages of the disease as cerebrospinal fluid tests approved by the Food and Drug Administration (FDA) for Alzheimer’s diagnosis. The findings indicate that a blood test soon may replace more expensive and invasive brain scans and spinal taps for detecting signs of Alzheimer’s in the brain.
Systemic sclerosis causes the skin to tighten and harden resulting in a potentially fatal autoimmune condition that is associated with lung fibrosis and kidney disease. University of Michigan Health researchers have studied the pathology of systemic sclerosis to understand better the disease and identify key pathways in the disease process that can be targeted therapeutically.
Kun Luo is combining his experience in materials experimentation and theoretical simulations to explain the atomic mechanisms that create special properties in high-performance materials.
Weedy rice is an agricultural pest with a global economic impact. It is an aggressive weed that outcompetes cultivated rice and causes billions of dollars in yield losses worldwide. A study from Washington University in St. Louis offers new insights into genetic changes that give weedy rice its edge over cultivated rice in tropical regions of the world.
Membranes of vertically aligned carbon nanotubes (VaCNT) can be used to clean or desalinate water at high flow rate and low pressure. Recently, researchers of Karlsruhe Institute of Technology (KIT) and partners carried out steroid hormone adsorption experiments to study the interplay of forces in the small pores. They found that VaCNT of specific pore geometry and pore surface structure are suited for use as highly selective membranes. The researchers report in Nature Communications. (DOI: 10.1038/s41467-024-44883-2)
The recent approval of a CRISPR-Cas9 therapy for sickle cell disease demonstrates that gene editing tools can do a superb job knocking out genes to cure hereditary disease.
For the first time, researchers from The University of Queensland (UQ) have mapped out the proteins implicated in the early stages of motor neurone disease (MND).
Cycles of a diet that mimics fasting can reduce signs of immune system aging, as well as insulin resistance and liver fat in humans, resulting in a lower biological age, according to a new USC Leonard Davis School of Gerontology-led study.
Any drug that is taken orally must pass through the lining of the digestive tract. Transporter proteins found on cells that line the GI tract help with this process, but for many drugs, it’s unknown which of those transporters they use to exit the digestive tract.
Published today in Nature Climate Change, the study found that exported used vehicles generate at least 13-53% more emissions per mile than those that are scrapped or on the road in Great Britain.
Microalgae in water are responsible for roughly 50% of the photosynthesis that converts carbon dioxide from the atmosphere into organic carbon. Researchers have now quantified the activity in the microbiome associated with these microalgae to investigate how the microbiome’s members process and exchange carbon and nitrogen from algal cells. They used isotopes and high-resolution imaging mass spectrometry to quantify these exchanges at the single-cell level.
With GPS data from as little as 6% of vehicles on the road, University of Michigan researchers can recalibrate traffic signals to significantly reduce congestion and delays at intersections.
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A team led by scientists at the Case Western Reserve University School of Medicine has identified a new therapeutic approach for combating neurodegenerative diseases.
An ingredient in many toothpastes is sodium fluoride, a compound of fluorine. It is added to protect teeth against decay. But compounds containing fluorine have other practical uses that might surprise you. The U.S. Department of Energy’s Argonne National Laboratory scientists have discovered a fluoride electrolyte that could protect a next generation battery against performance decline.
The U.S. Department of Energy’s Argonne National Laboratory scientists have discovered a new pathway to enhance lithium-sulfur batteries, addressing their major drawback of short lifetimes. The discovery, published in Nature, reveals a previously unknown reaction mechanism that overcomes rapid performance decline in lithium-sulfur batteries.
Researchers at Umeå University in Sweden, led by Professor Felipe Cava, have identified a new family of enzymes that creates a unique type of cross-linking between the building blocks of bacterial cell walls. This discovery could help develop new antibiotics against infectious diseases.
As part of a nationwide collaboration, Broad Clinical Labs researchers have optimized 10 polygenic scores for use in clinical research as part of a study on how to implement genetic risk prediction for patients.
University of Pittsburgh School of Medicine researchers discovered a molecular mechanism by which excessive dietary protein could increase atherosclerosis risk.
An analysis of genomic data from nearly 250,000 participants in the National Institutes of Health’s Research Program has identified more than 275 million previously unreported genetic variations, nearly 4 million of which have potential health consequences. The data, reported Feb. 19 in the journal , constitutes a research resource that is unprecedented in its scale and diversity, as 77% of the participants historically have been underrepresented in biomedical research, and 46% are from underrepresented racial and ethnic minorities.
Cleveland Clinic researchers have identified a new pathway that contributes to cardiovascular disease associated with high levels of niacin, a common B vitamin previously recommended to lower cholesterol.
A revolutionary nanomaterial with huge potential to tackle multiple global challenges could be developed further without acute risk to human health, research suggests.
The qualities of flowing blood, or hemodynamics, hold important insights into vascular diseases, but technological limitations have largely kept measurements of these properties out of reach in the clinic. Now, there may be a potential solution on the horizon.
Scientists at the UCLA Health Jonsson Comprehensive Cancer Center have built and demonstrated the potential efficacy of a new chimeric antigen receptor (CAR) T-cell-based immunotherapy specifically designed to treat patients with cutaneous and rare subtypes of melanoma.
Com o avanço da idade, as células podem sofrer envelhecimento, um estado no qual elas param de crescer, mas continuam liberando moléculas inflamatórias e tecido degradado.
Scientists discover that ions hopping through a battery electrolyte can reverse direction in response to a jolt of voltage and briefly return to their previous positions – .the first indication that the ions remembered, in a sense, where they had just been.
Wetlands are Earth’s largest natural source of methane, a potent greenhouse gas that is about 30 times more powerful than carbon dioxide at warming the atmosphere. A research team analyzed wetland methane emissions data across the entire Boreal-Arctic region and found that these emissions have increased approximately nine percent since 2002.
Columbia Biomedical Engineer Ke Cheng has developed a technique that uses inhalation of exosomes, or nanobubbles, to directly deliver IL-12 mRNA to the lungs of mice.
One of the key goals of medical science is to speed up the healing of tissue injuries in a way that would not enable the forming of less functional scar tissue in the affected areas.
Global warming may be interacting with regional rainfall and deforestation to accelerate forest loss in the Amazon, pushing it towards partial or total collapse.
The Amazon rainforest could approach a tipping point, which could lead to a large-scale collapse with serious implications for the global climate system.
A proton’s core consists of three valence quarks, but they contribute only a small fraction of the proton's mass. Most of the mass emerges from intricate quark dynamics and is primarily governed by the strong force mediated by gluons.
A collaborative effort led by Stuti Sharma, PhD, Assistant Professor in the Department of Biochemistry & Cell Biology at Stony Brook University, resulted in a promising study toward a better understanding of mitochondrial adenosine triphosphate (ATP) synthase.
A novel three-drug combination achieved notable responses in patients with advanced HER2-negative breast cancer, according to new research directed by investigators from the Johns Hopkins Kimmel Cancer Center.
A paper published today in the journal Nature finds that online images show stronger gender biases than online texts. Researchers also found that bias is more psychologically potent in visual form than in writing.
White blood cells known as neutrophils feature a nucleus that is structured strikingly different than most nuclei. These unique shapes permit neutrophils to travel all over the body to combat invading pathogens.