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Antioxidant-rich diets improve age-related declines in mental function of rats, USF/VA researchers report

Popeye was right — eat your spinach. In fact, add some fresh-cut apples to that spinach salad.

Two new animal studies by researchers at the University of South Florida Center for Aging and Brain Repair and James A. Haley Veterans Hospital bolster a growing body of evidence that certain fruits and vegetables may protect the brain against the ravages of age. The complementary research papers appear in today’s issue of the Journal of Neuroscience.

“If these pre-clinical fin

Alcohol Use Marker May Also Signal Marijuana Use, Risk Of Depression

An enzyme whose activity is affected by alcohol may prove useful in identifying recent alcohol or marijuna use even though it does not seem to be a good marker for genetic predisposition to alcoholism, a new international study finds. The researchers also found that the activity level of the enzyme, adenylyl cyclase, steadily dropped in people who had abstained from drinking for days to weeks and was generally lower in people with a history of major depression, according to the study published in th

EVEN MODERATE DRINKING RAISES BLOOD PRESSURE IN SOME MEN

One or two drinks a day can raise the risk of developing hypertension in some men, according to two Japanese studies. The studies, published in the July issue of Alcohol: Clinical Experience and Research, found that men who had as few as one or two glasses of alcohol on a regular basis had a much higher incidence of hypertension than those who did not drink at all. Several U.S. studies have found that moderate drinking habits can actually decrease the risk of heart disease. A

Energy blocker may be potential liver cancer treatment

A team of Johns Hopkins researchers has identified and successfully tested in animals a potential new treatment for liver cancer, a disease for which there are few effective treatments. Writing in the July 15 issue of Cancer Research, the scientists report that only cancer cells were killed when the compound, 3-bromopyruvate, was given to rabbits with experimental liver tumors. “It’s very exciting because we expected the compound to be pretty toxic, but somehow normal c

Scientists discover chromatin-modifying enzyme crucial for normal development

Over the past few years, covalent modifications of histone tails have emerged as an important mechanism of gene regulation in eukaryotes. Now, scientists have identified a major euchromatic histone methyltransferase in mammalian cells that is crucial for normal embryonic development, and possibly the prevention of cancer. In a report published in Genes & Development, Dr. Yoichi Shinkai and colleagues have identified a protein called G9a as an enzyme that adds a methyl group to the lysine 9 amino acid

Prostate Cancer Survival Benefit From A Combination Of Androgen Suppression And External Irradiation

Disease-free survival from advanced prostate cancer could be almost doubled if hormone-suppression therapy is used during and after radiotherapy for a duration of 3 years, suggest authors of an international study in this week’s issue of THE LANCET.
Long-term survival after radiotherapy for people with advanced prostate cancer is poor. Michel Bolla from University Hospital, Grenoble, France, and colleagues investigated the added value of long-term male-hormone (androgen) suppression in locally ad

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Physics and Astronomy

Technical Trials for Easing the (Cosmological) Tension

A new study sorts through models attempting to solve one of the major challenges of contemporary cosmic science, the measurement of its expansion. Thanks to the dizzying growth of cosmic…

Researchers crack mystery of swirling vortexes in egg cells

New research led by Flatiron Institute researchers reveals the source of the mysterious swirling flows in some of nature’s largest cells. Egg cells are the largest single cells on the…

Real-time detection of infectious disease viruses

… by searching for molecular fingerprinting. A research team consisting of Professor Kyoung-Duck Park and Taeyoung Moon and Huitae Joo, PhD candidates, from the Department of Physics at Pohang University…

Life Sciences and Chemistry

Peptides on Interstellar Ice

A research team led by Dr Serge Krasnokutski from the Astrophysics Laboratory at the Max Planck Institute for Astronomy at the University of Jena had already demonstrated that simple peptides…

When thoughts flow in one direction

Charité study in Science decodes wiring of the human neocortex. Contrary to previous assumptions, nerve cells in the human neocortex are wired differently than in mice. Those are the findings…

Oxygen vacancies mediated ultrathin Bi4O5Br2 nanosheets

… as efficient piezocatalyst for synthesis of H2O2 from pure water. As an important chemical raw material, hydrogen peroxide (H2O2) is widely applied in various aspects of industry and life….

Materials Sciences

Silicon Carbide Innovation Alliance to drive industrial-scale semiconductor work

Known for its ability to withstand extreme environments and high voltages, silicon carbide (SiC) is a semiconducting material made up of silicon and carbon atoms arranged into crystals that is…

Atom-by-atom: Imaging structural transformations in 2D materials

Silicon-based electronics are approaching their physical limitations and new materials are needed to keep up with current technological demands. Two-dimensional (2D) materials have a rich array of properties, including superconductivity…

“Nanostitches” enable lighter and tougher composite materials

In research that may lead to next-generation airplanes and spacecraft, MIT engineers used carbon nanotubes to prevent cracking in multilayered composites. To save on fuel and reduce aircraft emissions, engineers…

Information Technology

Skyrmions move at record speeds

… a step towards the computing of the future. An international research team led by scientists from the CNRS1 has discovered that the magnetic nanobubbles2 known as skyrmions can be…

How 3D printers can give robots a soft touch

Soft skin coverings and touch sensors have emerged as a promising feature for robots that are both safer and more intuitive for human interaction, but they are expensive and difficult…

6G mobile communications tested in the Alps

Researchers at the University of Stuttgart achieve strongest connection. Making emergency calls even in remote areas and transmitting large amounts of data in real time? This is possible with the…