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Medical Xpress / Dynamic protein behavior drives blood-brain barrier specialization, study reveals
A study led by researchers at the Institute for Bioengineering of Catalonia (IBEC), in collaboration with the Proteomics Platform of the Institute for Research in Biomedicine (IRB Barcelona), has uncovered a key mechanism ...
Phys.org / Microtubules in ovarian cell bridges may be key to fertility
Female fertility depends on the successful growth and maturation of eggs (oocytes) within ovarian follicles. Within these follicles, the oocyte is surrounded by granulosa cells that supply nutrients, signaling molecules and ...
Medical Xpress / COVID's lingering shadow faded after omicron—but not for everyone
Six years after the world first learned of COVID-19, the pandemic has faded into an unpleasant memory for many. For others, however, it never fully ended. A long-term study by Hiroshima University has found that while lingering ...
Medical Xpress / Dementia-causing substance turns into a therapeutic 'switch' with new Alzheimer's drug strategy
A substance that worsens dementia has become a "switch" that initiates treatment. KAIST researchers have developed a new therapeutic approach that uses hydrogen peroxide (H₂O₂), a reactive oxygen species that damages cells ...
Phys.org / Deliberate slow growth could explain bacteria survival strategies
Escherichia coli (E. coli) are mostly harmless bacteria that live in the intestines of animals and humans. They are the most well-studied bacteria and, often, when scientists discover something about E. coli, they extrapolate ...
Medical Xpress / Stem cell scientists engineer 'synthetic organizer' cells to improve kidney organoids
In a study published in Science, USC researchers paired a biological discovery with an engineering feat to create more faithful, reproducible lab-grown kidney structures from stem cells, known as organoids.
Phys.org / Physicists demonstrate Hong–Ou–Mandel interference with more than 10 atoms
In a new study published in Nature Physics, researchers have demonstrated the Hong–Ou–Mandel (HOM) effect with up to 12 indistinguishable neutral atoms—an effect that has been predominantly observed in photonic systems.
Phys.org / An iconic spear-throwing device likely wasn't used by prehistoric hunters until around 10,000 years ago
Archaeologists have long pictured prehistoric hunters taking down mammoths and other megafauna using the atlatl, a handheld spear-throwing device that uses leverage to achieve greater velocity and force when throwing darts. ...
Medical Xpress / BCG vaccine may rewire brain immunity, shift Alzheimer's markers over 12 months
New research led by Mass General Brigham investigators suggests that the Bacillus Calmette-Guérin (BCG) vaccine—which is delivered through the skin to prevent tuberculosis—may remodel the human brain's immune environment, ...
Medical Xpress / Parkinson's patients undergoing deep brain stimulation show little to no cortical Lewy pathology
Researchers at the Icahn School of Medicine at Mount Sinai have found that patients with Parkinson's disease undergoing deep brain stimulation (DBS) show little to no Lewy pathology in the prefrontal cortex at the time of ...
Phys.org / Quiet outings linked to more frequent dangerous wildlife encounters
The more people expand into previously natural areas, the more wildlife and humans step on each other's toes, leading to more interactions that may result in conflict. This includes national parks, where people flock to recuperate ...
Phys.org / New biosensor reveals rare lipid gathers in membrane hotspots during cell stress
Inside every cell are lipid molecules that make up cellular membranes, helping organelles communicate and respond to stress. Researchers have struggled to observe lipids in action because current detection tools lack sufficient ...