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Tea compound aids dying brain cells
09-29-2007 · Science News OnlineA constituent of green tea rescues brain cells damaged in a way that mimics the effect of Parkinson's disease.
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- HIV is a 'double hit' to the brain
08-15-2007 · EurekAlert!
New evidence reported in the August issue of Cell Stem Cell, a publication of Cell Press, offers a novel perspective on how the HIV/AIDS virus leads to learning and memory deficits, a condition known as HIV-associated dementia. A protein found on the surface of the virus not only kills some mature brain cells, as earlier studies had shown, but it also prevents the birth of new brain cells by crippling "adult neural progenitors," the new study finds.
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- AIDS interferes with stem cells in the brain
08-15-2007 · EurekAlert!
Scientists at the Burnham Institute for Medical Research have discovered how HIV/AIDS disrupts the normal replication of stem cells in the adult brain, preventing new nerve cells from forming. Drs. Stuart Lipton, Marcus Kaul, Shu-ichi Okamoto and colleagues uncovered a novel molecular mechanism that inhibits stem cell proliferation and that could possibly be triggered in other neurodegenerative diseases. These findings were published today online by the journal Cell Stem Cell.
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- Distracted? Tea might help your focus
09-29-2007 · Science News Online
An amino acid in tea combines with the brew's caffeine to enliven brain cells that aid concentration.
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- New treatments prevent brain injury hours after stroke in rats
12-28-2006 · EurekAlert!
Two novel treatments -- a basic compound found in every cell in the body and an extract of green tea -- may prevent brain damage caused from stroke, according to two studies in rats led by a researcher at the San Francisco VA Medical Center.
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- Chemical compound found in tree bark stimulates growth, survival of brain cells
10-01-2007 · EurekAlert!
Researchers have identified a compound in tree bark that mimics the chemical reactions of a naturally occurring molecule in the brain responsible for stimulating neuronal cell signaling. The tree bark compound, known as gambogic amide, behaves much like Nerve Growth Factor, a molecule found in the brain. NGF binds to TrkA, a neuronal receptor, and activates neuronal signaling. It is known that the loss of TrkA density correlates with neuronal atrophy and severe cognitive impairment such as that associated with Alzheimer's disease.
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- Humpback whales have brain cells also found in humans
11-27-2006 · EurekAlert!
A new study compared a humpback whale brain with brains from several other cetacean species and found the presence of a certain type of neuron cell that is also found in humans. This suggests that certain cetaceans and hominids may have evolved side by side.
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- Neural stem cells lend the brain a surprising capacity for self-repair
12-14-2006 · EurekAlert!
The brain contains stem cells with a surprising capacity for repair, researchers report in the Dec. 15 issue of the journal Cell, published by Cell Press. The novel insight into the brain's natural ability to heal might ultimately have clinical implications for the treatment of brain damage, according to the researchers.
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- When is a stem cell not really a stem cell?
08-26-2007 · EurekAlert!
Working with embryonic mouse brains, a team of Johns Hopkins scientists seems to have discovered an almost-too-easy way to distinguish between "true" neural stem cells and similar, but less potent versions. Their finding could simplify the isolation of stem cells not only from brain but also other body tissues.
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- Green tea may protect brain cells against Parkinson's disease
12-13-2007 · EurekAlert!
Does the consumption of green tea, widely touted to have beneficial effects on health, also protect brain cells? Authors of a new study being published in the Dec. 15 issue of Biological Psychiatry share new data that indicates this may be the case.
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- An AIDS-related virus reveals more ways to cause cancer, Penn researchers find
10-08-2007 · EurekAlert!
Researchers have shed new light on how Kaposi's Sarcoma-associated Herpes Virus subverts normal cell machinery to cause cancer. A KSHV protein called latency-associated nuclear antigen (LANA) helps the virus hide out from the immune system in infected cells. When LANA takes the place of other proteins that control cell growth, it can cause uncontrolled cell replication.
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