Tag: "insulating" at medical news

Plasmonics book gives overview of technology that could revolutionize computing

... are much smaller than those that can be made with insulating materials such as glass, the backbone of fibre-optic communications. The new plasmonic devices could pave the way for computer chips that transmit and process information using light instead of electrons, with vastly improved computing speeds. Th...

Researchers discover gene crucial for nerve cell insulation

...th that surrounds a nerve cell is analogous to the insulating material that coats an electrical cord or wire, keeping nerve impulses from dissipating, allowing them to travel farther and faster along the length of the nerve cell. The researchers discovered how a defect in just one copy of the gene, known as e...

Can a vitamin alleviate chronic, progressive multiple sclerosis?

...s, are damaged through inflammation, loss of their insulating myelin coating, and degeneration. This damage disrupts nerves' ability to conduct electrical impulses to and from the brain, causing such symptoms as fatigue, difficulty walking, pain, spasticity, and emotional and cognitive changes. Current treatmen...

Stem cell treatment succeeds in spinal cord-injured rats

...royed at the injured site, and produced myelin, an insulating layer around nerve fibers that transmits signals from the brain. An injured spinal cord loses its ability to regenerate myelin-forming cells, leading to paralysis. Fehlings showed that where stem cells restored myelin in the injured spine, rats show...

Controlling your (nerve) impulses

...mpulses along axons is aided by the presence of an insulating cover, known as myelin, which maintains the electrical activity along the entire length of the axon. The nerve impulse is able to skip across the unmyelinated regions of the axon at the nodes of Ranvier, with the help of sodium and potassium channels...

Multiple sclerosis research into reparative cells offers new avenue for fighting disease

...se mental sharpness. In MS, nerve cells lose their insulating fatty covering, called myelin. Myelin comes from nearby cells called oligodendrocytes, which send out projections that wrap around nerve cells. Myelin allows electrical signals to travel quickly and with high fidelity. The damaged area becomes surro...

New research offers clues to prevent brain damage in premature babies

...e to become oligodendrocytes that make myelin (the insulating sheath surrounding nerve fibers in the brain and spinal cord) throughout life. In some cases, these cells fail to mature and cannot repair damage to the white matter of the brain. The white matter is made up of long nerve fibers wrapped in myelin. ...

American Academy of Neurology sums up scientific highlights from 57th annual meeting

...New York showed that when immune cells destroy the insulating myelin around neurons, a molecule called 7-ketocholesterol is released. This molecule may stimulate other immune cells to attack the neuron. Understanding this important step may help design therapies to block it. [S12.004] Meanwhile, researchers fro...

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(Date:10/18/2014)... Berlin, 19th October 2014 Psychological stress and stress-related ... for aging-related diseases, but the molecular mechanisms ... mechanisms may contribute to the development of ... treatments for these devastating diseases. This work ... Neuropsychopharmacology congress in Berlin., Now an international ...
(Date:10/17/2014)... have shown for the first time how bacteria can ... giving them the opportunity to get tremendous insights into ... study also discovered the bacterial growth in chronic lung ... slowed down by the immune cells. The researchers discovered ... "suffocate" the bacteria, forcing the bacteria to switch to ...
(Date:10/16/2014)... researchers have challenged conventional thinking on how the bowel ... mechanism for how bowel cancer starts. , The researchers ... and regenerating the ,crypts, that are a feature of ... involved in bowel cancer development, a controversial finding as ... , Using 3D imaging technologies, Dr Chin Wee Tan ...
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