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Phys.org / New molecular view of cholera 'tail' could inform better treatment

Cholera is a deadly bacterial disease that kills about 95,000 people every year. Vibrio cholerae bacteria infect cells in the small intestine, which the bacteria can do in part due to their flagella—powerful tail-like structures ...

Dec 4, 2025 in Biology
Phys.org / Jaw versatility enabled the ecological success of amniotes, paleontologists find

New research conducted by paleontologists from the Museum für Naturkunde Berlin (MfN) and Humboldt-Universität zu Berlin reveals a burst in jaw variety in the earliest amniotes—which includes the ancestors of all reptiles, ...

Dec 4, 2025 in Biology
Medical Xpress / Memories are not static: How the brain stores and reshapes personal experiences over time

A study from the University of East Anglia is helping scientists better understand how our brains remember past events—and how those memories can change over time.

Dec 5, 2025 in Psychology & Psychiatry
Medical Xpress / Switching risk and protective alleles improves Alzheimer's-disease-like signatures and disruptions in mice

Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the progressive degradation of brain cells, as well as an associated decline in memory and other mental functions. Earlier research found that different ...

Dec 1, 2025 in Genetics
Phys.org / Traditional note-taking beats AI chatbots for reading comprehension, but a combined approach is still useful

A new study suggests that traditional learning activities like making notes remain critical for students' reading comprehension and retention, while also suggesting that large language models (LLMs), such as ChatGPT or Microsoft ...

Dec 3, 2025 in Other Sciences
Medical Xpress / Backup DNA repair system could be cancer's weak spot

The DNA inside our cells is constantly being damaged, and one of the worst kinds of damage is a double-strand break—when both sides of the DNA helix are cut at once. Healthy cells can normally fix these breaks using highly ...

Dec 4, 2025 in Oncology & Cancer
Phys.org / Seeing inside smart gels: Scientists capture dynamic behavior under stress

Advances in materials science have led to the development of "smart materials," whose properties do not remain static but change in response to external stimuli. One such material is poly(N-isopropylacrylamide), or PNIPAM, ...

Dec 4, 2025 in Chemistry
Medical Xpress / Protein unties tangled DNA linked to hotspots of cancer mutations

New research published in Nature Communications has linked a normal cellular process to an accumulation of DNA mutations in cancer and identified cancer-driving mutations in an underexplored part of the genome.

Dec 4, 2025 in Oncology & Cancer
Medical Xpress / KRAS-mutant cancers: Potential target could overcome treatment resistance

Researchers at The University of Texas MD Anderson Cancer Center have identified a specific protein, RASH3D19, that is responsible for activation of RAS signaling pathways involved in aggressive tumor growth and resistance ...

Dec 4, 2025 in Oncology & Cancer
Phys.org / Simulations reveal how black holes generate intense light from infalling matter

Surprisingly, some of the universe's brightest objects are black holes. As scorching gas and dust flow around and into a black hole, they glow with fierce intensity across the light spectrum. Now, a team of computational ...

Dec 3, 2025 in Astronomy & Space
Phys.org / Lemon shark caught preying on invasive freshwater fish in Fernando de Noronha, Brazil

Researchers recorded lemon sharks (Negaprion brevirostris) preying on an invasive species, the jaguar cichlid (Parachromis managuensis), for the first time. This observation was made in Sueste Bay in March 2024. Sueste Bay ...

Dec 3, 2025 in Biology
Phys.org / C-Compass: AI-based software maps proteins and lipids within cells

A new tool developed by Helmholtz Munich and the German Center for Diabetes Research and the University of Bonn makes spatial proteomics and lipidomics easier to use—no coding required. C-COMPASS allows scientists to profile ...

Dec 4, 2025 in Biology