Sentences with phrase «around neurons»

Yes, getting older slows us down: parts of the brain associated with memory and executive function shrink, myelin sheaths around our neurons start to erode, slowing down signalling, and arteries narrow diminishing blood supply.

When this happens, the brain generates plaques, which accumulate around the neurons and eventually disrupt the signaling system between brain cells.

A third class of glia, known as Schwann cells and oligodendrocytes, form insulating sleeves around neurons to keep their electric signals from diffusing.

Long, tree - shaped cells called Müller glia span the entire thickness of the retina, wrapping their branches around neurons to support their health and encourage the development of synapses.

The classic villain in Alzheimer's disease is ß amyloid, a protein fragment that can misfold and form sticky plaques around neurons in the brain.

The technique allows scientists an unprecedented glimpse of the brain regions that are most active during particular tasks or states of mind, but it does not do so directly: the scans measure blood flow, which seems to increase around neurons that are firing.

One of the telltale signs of Alzheimer's disease (AD) is sticky plaques of ß - amyloid protein, which form around neurons and are thought by a large number of scientists to bog down information processing and kill cells.

Brain cancer cells often cluster around neurons, a phenomenon called «perineuronal satellitosis,» and the extent of innervation in tumors has long been recognized as predictive of patient outcome.

They study how specific cell surface proteins regulate nervous system development, including formation of myelin, the insulating layer around neurons that degenerates in MS. Myelin ensures rapid flow of electrical signals, similar to the plastic coating around a wire and protects neurons from degenerating.

For example, Parkinson's disease, as well as ALS, were thought to be neuronal diseases; just recently it was shown in Parkinson's disease that you can manipulate a gene in the supporting cell around the neurons, and that if you stimulate a specific stress pathway in the support cells, you can dramatically slow down the progression of the disease.

For this reason, having a slice of avocado every day can help improve myelin levels around neurons, and much improve information transfer rates.

When applied to cultured brain tissue or administered nasally to live animals, these dendritic cell - derived exosomes significantly increased baseline levels of myelin — the protective sheath around neurons, which is damaged in multiple sclerosis.

This is largely composed of the fatty myelin sheaths around neurons and so reveals the brain's connections.