Tag: "nerve" at biology news
...taminate a wound, germinate, and produce botulimum nerve
toxin. The doctors made the diagnosis promptly, and so were able to offer appropriate treatment, including putting the patient on a ventilator and giving him botulinum antitoxin. The patient made a full recovery. The team of doctors who treated...
Electrical activity alters language used by nerve cells
...system. The findings suggest that modification of nerve
activity could have potential as a treatment for a...point, neurotransmitters--the chemical language of nerve
cells--and receptors--the proteins that receive and respond to neurotransmitters--are not specified ...
ACS News Service Weekly PressPac -- Dec. 13, 2006
...ys for delivering neurotransmitters to the tips of nerve
cells, positioning chromosomes for cell division and transporting molecules. On micro-TASs, microtubules would be used as molecular tracks in the chip for filtration, dilution, separation, reactions, detection and other steps in an analysis. The new...
Study reveals molecular basis of botulism toxin's deadly activity
...strong interaction that botulinum toxins form with nerve
cells, a union so robust that a single toxin molecule can completely incapacitate a nerve
cell. Because of this action, even in minute quantities these toxins are potentially deadly, leading...
Leibniz Prize winners 2007 announced
...ng has succeeded in identifying and characterising nerve
cell populations in the hypothalamus that regulate food intake. The key control signal is the insulin that regulates the bodys energy status from the brain. Considering the almost epidemic proliferation of obesity, which now affects nearly 20 perc...
Seeing a neurotoxin's deadly grip
...sm and tetanus can recognize and attack particular nerve
cell proteins at the neuromuscular junction.Researchers knew that the toxins simultaneously bind to two distinct neuronal receptors one a protein and one a sugar-containing lipid called ganglioside but the details of that binding had not been estab...
Botulism study could lead to new vaccines and treatments to counter bioterrorist attacks
...werful neurotoxin binds to and disables individual nerve
cells. Researchers say their discovery, published ...mical messages (neurotransmitters) from inside the nerve
cell to the surface where the neurotransmitters are released. The vesicles then are reprocessed insi...
Study helps explain why botulinum toxin is so deadly
...ulinum toxin uses a similar strategy to latch onto nerve
cells, the first step in inactivating them. The ...n first attaches to a receptor on the surface of a nerve
cell, then looks for a second type of receptor that is nearby. Once the toxin links to this second r...
Forsyth scientists discover early key to regeneration
...urs, regeneration cannot proceed and the growth of nerve
axons becomes abnormal. Later inhibition of apoptosis has no effect, suggesting that the programmed death of a specific cellular component is a very early step in the regeneration program. One possible model is that tissues normally contain a populat...
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 and...
Gas on your mind
... the nervous system and the processes that control nerve
cell regeneration following injury. Researchers r...o found naturally in the brain where it is used by nerve
cells to communicate with each other. So, whilst it can be poisonous, the body also uses it benefici...
Gene discovered by UNC researchers tied to pancreatic cancer
...din is involved in the formation of scar tissue on nerve
cells in the brain or spinal cord, and it's found in cells that are moving, including embryonic cells and cells at the edge of wounds. "Now we find it implicated in pancreatic cancer," said Otey, an associate professor of cell and molecular physiol...
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...
Origin of inherited pain disorder pinpointed
...utations in porelike sodium channels in peripheral nerve
cellsa discovery that they said emphasizes the rol...are central to the neuron's ability to propagate a nerve
impulse. In response to voltage changes in a nerve
cell caused by a nerve
impulse, these channels sn...
Study shows cats can succumb to feline Alzheimer's disease
...identified a key protein which can build up in the nerve
cells of a cat's brain and cause mental deteriorat...disease, this protein creates 'tangles' inside the nerve
cells which inhibit messages being processed by the brain. The team says that the presence of this p...
Penn researchers discover initial steps in the development of taste
...te papillae that are able to attract taste-related nerve
fibers. This study represents the first genetic an...it chemical stimuli from food and other sources to nerve
cells, which convey these signals to the taste centers in the brain. Taste buds sit in the small bum...
Learning during sleep?
...considerable influence on our understanding of how nerve
cells interact during sleep consolidation," confir... they recorded the field potential of thousands of nerve
cells in the cerebral cortex. This allowed them to link the behaviour of the individual nerve
Protein protects against nerve degeneration
A protein called NMNAT protects against nerve
cell degeneration in fruit flies and mice, said Ba...chers in the U.K. discovered a mouse whose injured nerve
cells were slow to die. Even when the nerve
was cut, it had some function two weeks later while in a...
Cell death following blood 'reflow' injury tracked to natural toxin
...lood vessel injuries, the researchers pumped mouse nerve
cells full of PAR-polymer. The cells died, but to be sure PAR-polymer (and not something else) killed them, they examined the brains of mice engineered to lack an enzyme that chews up and gets rid of PAR. These mouse brains contained twice as much PA...
News tips from the Journal of Neuroscience
... counted the number of boutons and active zones on nerve
terminals by light and electron microscopy (EM). The authors report that things dont add up: they found many more functionally determined release sites than anatomically defined active zones as defined by three- dimensional EM reconstructions. Using ...
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