illustration of neurons in blue with synapses lighting up
Gut Molecule Linked to Decreased Myelination in Mouse Brains
A study shows that a molecule produced by intestinal microbes can enter the brain and that its presence is also associated with altered brain connectivity.
ABOVE: © ISTOCK.COM, ISMAGILOV
Gut Molecule Linked to Decreased Myelination in Mouse Brains
Gut Molecule Linked to Decreased Myelination in Mouse Brains

A study shows that a molecule produced by intestinal microbes can enter the brain and that its presence is also associated with altered brain connectivity.

A study shows that a molecule produced by intestinal microbes can enter the brain and that its presence is also associated with altered brain connectivity.

ABOVE: © ISTOCK.COM, ISMAGILOV

myelin

Inadequate Myelination of Neurons Tied to Autism: Study
Lisa Winter | Feb 4, 2020
A mouse model of autism and postmortem brains of autistic individuals showed a lack of mature oligodendrocytes and less myelination than controls.
Image of the Day: Telling Scans
Aggie Mika | Oct 16, 2017
In children’s brain scans, scientists uncovered signs of multiple sclerosis before the kids showed any symptoms of the disease.
Week in Review: October 13–17
Jef Akst | Oct 17, 2014
Snail not extinct after all; results too good to be true?; mice need myelin production for motor learning; keeping the brain young; the evolution of archaea
Myelin’s Role in Motor Learning
Ashley P. Taylor | Oct 16, 2014
The production of new myelin in the brain—a function of non-neuronal glial cells—may be necessary for motor learning, a mouse study shows.
Remodeling Myelin
Dan Cossins | Aug 1, 2013
New oligodendrocytes in the adult mouse brain appear to remodel existing myelin sheaths, which may fine-tune the speed of nerve impulses.
Stem Cells Myelinate Human Brain
Sabrina Richards | Oct 10, 2012
In a Phase I trial, researchers show that neural stem cells transplanted into humans can differentiate and begin producing myelin.