Neuroscience

Scientists cast light on the brain's social cells

Picture yourself hovering over an alien city with billions of blinking lights of thousands of types, with the task of figuring out which ones are connected, which way the electricity flows and how that translates into nightlife. ...

Alzheimer's disease & dementia

Tracking down the causes of Alzheimer's

Genes are not only important for regular memory performance, but also for the development of Alzheimer's disease. Researchers at the University of Basel now identified a specific group of genes that plays a central role in ...

Medical research

Preventing calcification of bioprosthetic heart valves

A defective heart valve is the second most common form of heart disease. Most cases involve a narrowed aortic valve, but often the mitral valve can also be affected. Prostheses significantly increase the life expectancy of ...

Medical research

Immunity restrained by ion influx

B cells maintain stockpiles of calcium ions (Ca2+), which are released during the course of the immune response. When the presence of a foreign antigen stimulates the B cell receptor (BCR) complex, these internal reserves ...

Neuroscience

Researchers identify how cells control calcium influx

(Medical Xpress)—When brain cells are overwhelmed by an influx of too many calcium molecules, they shut down the channels through which these molecules enter the cells. Until now, the "stop" signal mechanism that cells ...

Neuroscience

'Lightning bolts' in the brain show learning in action

Researchers at NYU Langone Medical Center have captured images of the underlying biological activity within brain cells and their tree-like extensions, or dendrites, in mice that show how their brains sort, store and make ...

Medical research

Study finds linchpin of skin response to UVA light

Last year, a team of researchers at Brown University discovered that certain skin cells use a light-sensitive receptor found outside of the eye to sense ultraviolet light and quickly begin pumping out melanin to protect against ...

Medical research

Channeling into cell control

A research team from the RIKEN Brain Science Institute in Wako, Japan, has visualized and accurately modeled the molecular changes that open and close the internal membrane channels for calcium ions within cells. The ions ...

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