Overactive cell metabolism linked to biological aging

Why do cells, and by extension humans, age? The answer may have a lot to do with mitochondria, the organelles that supply cells with energy. Though that idea is not new, direct evidence in human cells had been lacking. Until ...

Abnormal RNA gums up the works in brain cells, shows study

Our DNA contains four types of molecules, adenine, cytosine, thymine, and guanine—called nucleotides or bases—running along the strands that make up our chromosomes. Since there are only four, it is not unusual to find ...

Perseverant bacteria challenge antibacterial treatment

Bacterial perseverance is a new phenomenon that helps explain how bacteria adapt to survive antibiotic treatments. A group of researchers at Uppsala University have studied how individual bacteria react when exposed to different ...

Self-assembling proteins can store cellular 'memories'

As cells perform their everyday functions, they turn on a variety of genes and cellular pathways. MIT engineers have now coaxed cells to inscribe the history of these events in a long protein chain that can be imaged using ...

Novel mechanisms regulate inflammatory skin diseases

Investigators have identified a novel role for an intracellular trafficking pathway in regulating epidermal developmental processes, which could serve as a future therapeutic target for inflammatory skin diseases, according ...

Life and death of an 'altruistic' bacterium

Biofilms, complex communities of bacteria, abound around us: on the surface of cheese where they give off flavors and aromas, in streams where they form the slimy substance on rocks, on our teeth where they form plaque.

Human fetal lung cell atlas uncovers 144 cell states

The developing human lung has been mapped in unprecedented detail, identifying 144 cell states in the early stages of life, and uncovering new links between developmental cells and lung cancer.

Bat virus receptor studies vital to predict spillover risk

New research shows that the closest bat virus relatives of the human Middle-East Respiratory Syndrome (MERS) coronavirus efficiently bind to bat ACE2 receptors as an entry point into these cells. These receptors have some ...

page 18 from 40