Diseases, Conditions, Syndromes

Team finds changes in fat composition of our brains' myelin as we age

The "wear and tear" of aging is often noticed first in our bodies, but our brains also experience changes that make it harder to remember where you left your keys or the name of that acquaintance you ran into at the grocery ...

Neuroscience

What does myelin actually do?

Students of physiology are invariably taught that the primary function of myelin is to insulate nerves. In particular, to make action potentials more efficient by increasing the thickness of the membrane and thereby decreasing ...

Neuroscience

A map of mouse brain metabolism in aging

The first atlas of metabolites in the mouse brain has been published by a team led by UC Davis researchers. The dataset includes 1,547 different molecules across 10 brain regions in male and female laboratory mice from adolescence ...

Neuroscience

Video: Human brain scan

This colorful brain scan is a 3-D model created by tractography, which uses data collected with diffusion weighted MRI to map the brain's white matter. Each line represents a bundle of nerve fibers wrapped in a myelin sheaths, ...

Neuroscience

Thicker nerve fibers enable faster reactions in mice

In order for organisms to react swiftly to stimuli in their environment, they need rapid and precise transmission of nerve impulses along neural extensions known as axons. Whereas some invertebrates have developed very thick ...

page 4 from 16