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Tag: "neurons" at medical news

A new century of Alzheimer's disease research

...imer’s develops, the shape of tau molecules inside neurons changes; they begin to come off the microtubules t...int where the pathology was quite severe, a lot of neurons had died, and the mouse couldn’t remember any of its tasks -- when we hit this molecular switch, the...

New Oncogene for Brain Cancer

...he glial cells which normally support and nourish neurons -- that are highly resistant to treatment. This makes IGFBP2 an important candidate for development of targeted therapy to treat gliomas, Zhang says. Gliomas kill about 13,000 people in the United States annually. The possibilities are not limite...

Insight Into Neural Stem Cells Has Implications For Designing Therapies

...godendrocytes and neurons. Their role in producing neurons is of particular interest to scientists because neurons orchestrate brain functions -- thought, feeling and movement. If scientists could figure out how to...

Scientists Find Single Circuit Channeling Depression in Rats

...igh-resolution cameras to record activity in brain neurons in real time. According to Deisseroth, rat brains show similar depression symptoms to human ones and react to anti-depression medicines in the same way. The testing showed that an alteration in electrical activity flow through the brain could be ...

Fibrinogen may Inhibit Spinal Cord Regeneration

...rvous system, the blood protein contributes to the neurons inability to repair themselves. The findings, wh...fibrinogen from the blood vessels. Once injured, neurons cannot be repaired because of various inhibitors that are present in the brain and the spinal cord a...

Brain Pathway for Depression Revealed

...eal time, enabling the researchers to watch living neurons in action, across entire brain networks. The sys...art, she said, was to look at the formation of new neurons in the hippocampus, a process that neuroscientists have suggested is at the root of how antidepressa...

Parkinsons Disease Mechanism Identified

...patients, the researchers have found evidence that neurons die because of a crippling of a particular protect...s. In their new studies, the researchers analyzed neurons to determine that Cdk5 regulates yet another enzyme called Prx2. This enzyme is known as a peroxidas...

Neurotransmitter That can Yield New Insights in the Fight Against Diabetes Identified

...professor at the university, says that knowing how neurons relay hypoglycemia warnings is critical to underst...ular nucleus activity. The same paraventricular neurons lit up in both sets of animals, and the animals displayed similar increases in hormone levels, sugge...

FDA Approve S Robotic Device to Help Stroke Patients

...t can help the brain forge new connections between neurons or strengthen existing ones. For patients whose st...nt therapy may help the brain to use other, nearby neurons or even neurons in the opposite brain hemisphere to complete a movement. The goal is to make neu...

Stem Cells Research in Parkinsons Disease

...ipients a significant amount of dopamine-producing neurons that were not derived from stem cells. The results suggest that stem cells may actually trigger the brains own self-repair mechanisms by pumping out molecules that boost nerve survival and blood vessel development and decrease neural degeneration. ...

New Understanding on Growth of Human Stem Cells

...nical therapy to regenerate damaged tissue such as neurons for Parkinsons disease, or insulin producing cells for diabetes . The research has been funded by the Canadian Institutes for Health Research and the National Cancer Institute of CanadaThe Nature article is the latest in a series of important papers...

Eap1 in the Brain Regulates the Female Reproductive Cycle

...female reproductive cycle are events controlled by neurons in the hypothalamus that secrete gonadotropin-releasing hormone (GnRH). How signaling to these neurons is controlled remains unclear. In a study appearing online on July 12 in advance of publication in...

Bak Protein Sets Stressed Cells on Suicide Path

...ctured mitochondria. Looking at kidney cells and neurons in a Bak deficient mouse, they also showed that Bak and Bax need each other to successfully spawn cell suicide. "If you have Bak but not Bax, the mitochondria still fragment but they don't die; if you have Bax but not Bak, you still have puncture...

Sensible Diet, Exercise and Weight Control Increases Longevity

... Because reducing insulin-like signalling in the neurons of roundworms and fruitflies extends their lifespan, the researchers decided to examine what would happen when they knocked out one or both copies of the Irs2 gene only in the brains of mice. Mice lacking one copy of the Irs2 gene in brain cells a...

World Epilepsy Week - 2007

... writing. The temporal lobe seizures may also fire neurons that help with this creativeness. Science so far h...es for epilepsy, including transplanting fetal pig neurons into the brains of patients- to learn whether cell transplants can help control seizures, transplant...

Parkinsons Disease Protein Pathway Identified

... central nervous system resulting from the loss of neurons in the brain that produce dopamine. This lowering of dopamine leads to decreased stimulation of the brain's motor cortex. Although scientists have not known the exact cause of the loss of these dopamine-producing neurons, they believe it is related...

Protein Pathway Involved in Parkinson Disease Development Identified

... central nervous system resulting from the loss of neurons in the brain that produce dopamine. This lowering of dopamine leads to decreased stimulation of the brain's motor cortex. Although scientists have not known the exact cause of the loss of these dopamine-producing neurons, they believe it is related...

Scientists Identify Broad Neural Response Behind Speech Reception

...s studies had explored the responses of individual neurons to speech sounds, but not the response of the auditory cortex as a whole. During the course of study, the researchers asked volunteers to listen to spoken sentences such as "he held his arms close to his sides and made himself as small as possible,"...

Neurological Disorder Gene Identified

...s to use the mice in studies to find out why their neurons deteriorate so rapidly...

Estrogen Therapy Protects Against Fading Mental Powers: Study

...). The study suggests that estrogen protects the neurons in the post-menopausal female brain from inevitabl...utopsies showed that the estrogen had affected the neurons in the pre-frontal cortex - a region of the brain associated with cognitive tasks. The treated monke...

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