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Tag: "nerve" at biology news

Cocaine high caused by interference in neuronal receiving stations

...een two types of receiving stations in neurons for nerve signals from their neighbors. The researchers' stu...Neuron, published by Cell Press. Neurons trigger nerve impulses in their neighbors by launching bursts of chemicals called neurotransmitters at them. The n...

Hopkins researchers discover how brain protein might control memory

...it has been long known that stimulating individual nerve cells - by an act as simple as exploring new envir...ories." According to Worley, memories form when nerve cells connect and "talk" to other nerve cells. It's thought that the stronger these connections are,...

Fast-freeze snapshot yields new picture of nerve-muscle junction

When nerve cells excite muscle fibers to flex, getting synapt...micals at the junctions -- the signal that enables nerve cells to issue commands. The technique described in the new study, high-pressure freeze electron mi...

Neural networking nanotubes

...able biomedical devices that can act as artificial nerve cells, control severe pain, or allow otherwise par...bon nanotubes, to connect an integrated circuit to nerve cells. The new technology offers the possibility of building an interface between biology and electr...

A new target for painkillers

A brand new approach to treating severe nerve pain ?by aiming drugs at a previously unrecognized...t cone snail toxins named RgIA and Vc1.1 can treat nerve hypersensitivity and pain by blocking a molecule in cells known as the "alpha9alpha10 nicotinic acet...

Stem cells found in adult hair follicles may provide alternative to embryonic stem cells

...desirable characteristics that could lead to local nerve replacement and re-myelination (restoration of nerve pathways and sheaths). Neural crest stem cells generate a wide array of cell types and tissues an...

Most important actors in the growth process of neurons identified

...wth process of our neurons often underlie brain or nerve diseases, such as Alzheimer's disease or multiple ...g can lead to better understanding of a variety of nerve diseases. A complex network A human being has approximately 100 billion neurons, the body's informa...

Nerve cell software keeps track of brain change

...CSIRO launches in the United States its HCA-Vision nerve cell analysis software at Neuroscience 2006 in Atl...e complex than the intricate, web-like branches of nerve cells photographed down a microscope. HCA-Vision allows researchers to reliably measure significan...

Vaccine for brain tumors shows promising results

... connective tissue cells that surround and support nerve cells. The most common site of involvement of a glioma is the brain. Malignant glioma is currently a fatal disease. The trial results are being presented at the Immunotherapy Task Force Meeting, sponsored by the Society of Neuro-Oncology and th...

Slow brain waves play key role in coordinating complex activity

While it is widely accepted that the output of nerve cells carries information between regions of the brain, it's a big mystery how widely separated regions of the cortex involving billions of cells are linked together to coordinate complex activity. A new study by neuroscientists at the University of...

Molecular structure reveals how botulinum toxin attaches to nerve cells

...toxins bind to and enter neurons, interfering with nerve transmission and disrupting the communication between the nerve and muscle fibers throughout the body. Poisoning with botulinum toxins leads to an often-fatal paral...

Human stem cells delay start of Lou Gehrig's disease in rats

...duplicate Lou Gehrig's disease delays the start of nerve cell damage typical of the disease and slightly prolongs life. The grafted stem cells develop into nerve cells that make substantial connections with existing nerves and do not themselves succumb to Lou Ge...

Researchers image molecular motor structural changes

...ical neurotransmitters that carry messages between nerve cells. Down syndrome, in which chromosomes do not divide properly in egg cells, also is thought to be caused by defects in kinesins. Finding methods to stimulate kinesin activity might help in the treatment of these human diseases, the researchers s...

Two central mysteries in genome inheritance solved at UCSD

...y's cells, resulting in adverse side effects, like nerve pain and loss of sensation ," said Desai. "If we could specifically target dividing cells, we should improve on current chemotherapy to treat the cancer with fewer side effects." The second paper from Desai's research group, to be published in t...

New mechanism underlying pain found

...ntaneous pain and abnormal sensitivity following a nerve injury, typically results from a traumatic injury,...al activity and resulting sensitivity that follows nerve injury," said Alan Wickenden, Ph.D., Research Fellow in the Pain and Related Disorders Team at J&...

A natural chemical found in strawberries boosts memory in healthy mice

...t might be able to promote new connections between nerve cells." Interestingly the signaling pathway activated by fisetin in neural differentiation also played a role in memory formation, a process neuroscientists call "long-term potentiation" or LTP. LTP allows memories to be stored in the brain by stre...

Stem cell activity deciphered in the aging brain

...y the aging brain produces progressively fewer new nerve cells in its learning and memory center. The scien... by stimulating the brain's ability to produce new nerve cells, said senior study investigator Ashok K. Shetty, Ph.D., professor of neurosurgery at Duke Univ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...als, which are indicators for how well the brain’s nerve cells and nerve sheaths are constituted, rose significantly. The increase of the nerve cell marker correlated with t...

Critical hearing gene helps send auditory messages to brain

...e sound stimulation into the release of a chemical nerve messenger, or neurotransmitter, that would usually...or synapse, between the sensory cells and auditory nerve endings. That chemical release allows nerve messages to be passed from one neuron to another. In i...

Zinc plays important role in brain circuitry

...conclusively that the metal plays a role in normal nerve cell transmission. However, in an article in the November 22, 2006, issue of the journal Neuron, published by Cell Press, Heinrich Betz and colleagues conclusively demonstrate just such a role for zinc. In their experiments, the researchers pro...

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