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Tag: "astrocytes" at medical news

Astrocytes Found To Cause Epilepsy

...s the production of abnormal cells called reactive astrocytes – oversized, bloated, star-shaped cells that no lo... function. Monkeys have roughly the same number of astrocytes as neurons in their brains, whereas humans have 10 times as many astrocytes as neurons. Recently, mo...

Stem Cell Technology Gives Hope in Spinal Cord Injuries

... given immature immune system support cells called astrocytes and this resulted in a 40-percent rise in nerve-fiber growth at the site of the injury in only eight days. The results of the research is published in the April 26 in the open-access Journal of Biology. The Christopher Reeve Foundation has partly ...

Fines Paid By Speeding Motorists Used in Funding Spinal Cord Injury Research

...nt to study the role of star-shaped cells known as astrocytes in spinal cord injury. Traditionally such research...ing and Developmental Biology, has discovered that astrocytes are very important in spinal cord injury as well as epilepsy, Alzheimer's disease, and migraine head...

Naturally Occurring Enzyme Can Break Down Key Part of Alzheimer's Plaques

... the production of MMP-9 in astrocytes. They found astrocytes close to amyloid plaques increased their MMP-9 production. Imaging studies also showed that MMP-9 levels increased around blood vessels laden with amyloid. "Astrocytes become activated around plaques as they develop, and then eventually form a wall...

Potential Key to Brain Blood-Flow Disorders Explored by Scientists

... surrounds and encases blood vessels. In this way, astrocytes are capable of integrating information from a larg...ow. In order to try and find out how neurons use astrocytes to communicate rapidly to blood vessels, the team of scientists at the University of Vermont employe...

Stem Cells Provide New Tool for Studying Disease and Identifying ALS Drugs

...i's groups observed that non-neuronal cells called astrocytes may have a toxic effect on motor neurons in ALS. ... The Columbia study provides further evidence that astrocytes are toxic to motor neurons in ALS. The Columbia team's discovery of astrocyte-toxic mediators provid...

Reduced Oxygen to the Brain Increases Alzheimers Risk in Stroke Victims

...ded. Researchers found that if at some point the astrocytes become hypoxic, they are less able to mop up these transmitters, allowing the residual chemicals to accumulate and become toxic. The team is further investigating two key signalling molecules, which are very sensitive to fluctuations in oxygen leve...

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