The disruption of axons—the thread-like part of nerve cells that transmits electrical signals—is associated with Alzheimer’s disease. One way axonal function may be hindered is through damage to the ...

While comparing neurons and transistors is a convenient metaphor (and not completely out of left field), the brain is ...

In this image, an axon appears in green, while abnormal protein clumps (amyloid, red) lodge in tiny channels within the myelin sheath. Amyloid aggregates form filament-like strands across the ...

The myelin sheath surrounding the axons, or nerve fibers, can be compared to the insulation covering an electric wire. Without it, the rapid propagation of electric signals would not be possible.

Cortical amyloid plaques are known to induce tau phosphorylation, so this could possibly extend to amyloid deposits beneath the myelin sheath. Such sub-myelin amyloid accumulation may similarly ...

The myelin sheath surrounding the axons, or nerve fibers, can be compared to the insulation covering an electric wire. Without it, the rapid propagation of electric signals would not be possible.

Nerve fibers are surrounded by a myelin sheath. Scientists at the Technical University of Munich (TUM) have now made the first-ever "live" observations of how this protective layer is formed. The ...

Myelin is an insulating sheath around axons -- the processes connecting nerve cells -- that is mostly composed of lipids and proteins. It enables rapid conduction of electrical signals and ...

This is the case, for example, when myelin sheaths have been attacked by immune cells, but continue to surround the axons and thus isolate them from the environment. Oligodendrocytes are not only ...

In young adults, the myelin sheath (dark rings) around axons (light gray circular structures) can be rebuilt, but this process is not fully efficient and its efficiency decreases sharply with age ...