Exercising lab-grown human muscle autonomously blocks the damaging effects of interferon gamma — ScienceDaily

Biomedical engineers at Duke University have demonstrated that human muscle has an innate ability to ward off the damaging effects of chronic inflammation when exercised. The discovery was made possible through the use of lab-grown, engineered human muscle, demonstrating the potential power of the first-of-its-kind platform in such research endeavors. The results appear online on […]

Shift in caribou movements may be tied to human activity — ScienceDaily

Human activities might have shifted the movement of caribou in and near the Arctic National Wildlife Refuge, according to scientists with the University of Cincinnati. Each year caribou take on one of nature’s longest land migrations, trekking hundreds of miles across Alaska and Canada to find food and give birth in their preferred calving grounds. […]

How many early human species existed on Earth?

We Homo sapiens didn’t used to be alone. Long ago, there was a lot more human diversity; Homo sapiens lived alongside an estimated eight now-extinct species of human about 300,000 years ago. As recently as 15,000 years ago, we were sharing caves with another human species known as the Denisovans. And fossilized remains indicate an […]

Shift in caribou movements may be tied to human activity

University of Cincinnati assistant professor Joshua Miller records data from a shed caribou antler in the Arctic National Wildlife Refuge. Credit: Eric Wald Human activities might have shifted the movement of caribou in and near the Arctic National Wildlife Refuge, according to scientists with the University of Cincinnati. Each year caribou take on one of […]

Point-of-care test developed for tumor marker in human saliva based on lanthanide nanoprobes

Schematic illustration of CEA detection in saliva. Eu2O3 NCs and disposable syringe filter equipped with nitrocellulose membrane are employed as nanoprobes and bioassay platform, respectively. The whole assay can be carried out within 10 min, including incubation, labeling, and washing procedures, which allows both quantitatively time‐resolved (TR) and qualitatively visual detection of CEA.Advanced Science (2021). […]

Meipu teeth shed light on the human settlement of Asia

Comparison of the upper first molar of Meipu with other fossils from Africa, Asia and Europe. Credit: S. Xing et al María Martinón-Torres and José María Bermúdez de Castro, researchers at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), have participated in a study published in the Journal of Human Evolution, on one […]

Tweaking AI software to function like a human brain improves computer’s learning ability

WASHINGTON – Computer-based artificial intelligence can function more like human intelligence when programmed to use a much faster technique for learning new objects, say two neuroscientists who designed such a model that was designed to mirror human visual learning. In the journal Frontiers in Computational Neuroscience, Maximilian Riesenhuber, PhD, professor of neuroscience, at Georgetown University […]

SARS-CoV-2 infection demonstrated in a human lung bronchioalveolar tissue model

Heidelberg/Germany, 11 January 2021 – Development of an in vitro human-derived tissue model for studying virus infection and disease progression in the alveolar cells of the lungs responsible for oxygen and carbon dioxide exchange with the blood might enable the study of possible therapies for acute respiratory distress syndrome (ARDS) triggered by SARS-CoV-2. Researchers in […]

Rare quadruple-helix DNA found in living human cells with glowing probes

Quadruple-helix DNA. Credit: Imperial College London New probes allow scientists to see four-stranded DNA interacting with molecules inside living human cells, unraveling its role in cellular processes. DNA usually forms the classic double helix shape of two strands wound around each other. While DNA can form some more exotic shapes in test tubes, few are […]