Moreover, magnetic resonance imaging taken 18 months later indicated the formation of new
myelin around axons and clinical observations of the treated patients indicated that their motor functions remained stable or enjoyed modest gains.
Axons of these nerves leave the spinal cord in the ventral branches (rami) of the spinal nerves, and then separate out as «white rami» (so called from the shiny white sheaths of
myelin around each axon) which connect to two chain ganglia extending alongside the vertebral column on the left and right.
Not exact matches
Throughout childhood
Myelin continues to be build
around the
axons and dendrites in your child's brain to improve the transmission of nerve signals.
In the AIDP variant of Guillain - Barré syndrome, the focus of the autoimmune attack is the
myelin sheath, a layer of insulation that surrounds nerve
axons, similar to the insulation
around the wires of an electric cable.
The other is that the virus itself directly attacks neural cells and destabilizes the
myelin sheath
around them or damages
axons to cause GBS.
They make
myelin, the fatty coating
around axons — long, threadlike fibers that relay neural impulses from one cell to the next, activating the circuitry that endows us with the physical and emotional capacity to fully embrace the world.
Those signals are disrupted because
myelin, the insulating sheath
around a nerve cell's message - transmitting
axons, becomes damaged.
The brain creates new oligodendrocytes that wrap fresh
myelin around the affected
axons, Popko and colleagues reported in January 2016 in Nature Neuroscience.
OLs formed before tamoxifen injection are red, newly - forming OLs have a yellow «cell body» containing the nucleus surrounded by a green «bundle of sticks» which are short stretches of
myelin wrapped
around thread - like
axons.
Instead, supportive cells called oligodendrocytes are responsible for making the
myelin sheath that wraps
around axons.
RIPK1, the researchers found, inflicts damage by directly attacking the body's
myelin production plants — nerve cells known as oligodendrocytes, which secrete the soft substance, rich in fat and protein that wraps
around axons to support their function and shield them from damage.
The genes in question are all involved in the production of
myelin, which forms the fatty insulation
around nerve cell
axons that enables efficient communication in the central nervous system.
An unpredictable disease that disrupts the flow of information within the brain and between the brain and the body, MS is triggered when the immune system attacks the
myelin sheath, the protective covering
around the
axons of nerve fibers.
In the peripheral nervous system,
myelin forms when «membrane tongues» extend from Schwann cells to spirally wrap
around an adjacent
axon.
Myelin twists
around the
axon like a jelly - roll cake and prevents the loss of electrical signals.
Each time a network is activated — the information recalled for review or use — the connections become stronger and faster (speed through a circuit is largely determined by the layers of
myelin coating that are built up
around the
axons — this is also in response to the flow of the electric current of information transport when the circuit is activated).
Myelin forms an insulating layer
around these
axons, the purpose of which is to allow electrical impulses to transmit efficiently and rapidly along the axonal pathways.