Tag: "signals" at medical news
Implanted medical device aims to lower blood pressure
...ow-level electrical stimulation to this area sends signals
to the brain, 'telling' it to take action to lower blood pressure through a variety of mechanisms, including blood vessel dilatation, heart rate reduction, and promotion of fluid excretion by the kidneys. In this way, the Rheos System provides a phys...
Genetic link to cervical cancer
...nds on a balance between activating and inhibitory signals
generated by a group of protein receptors called killer cell immunoglobulin-like receptors (KIRs). These receptors bind to partner proteins that are expressed on virtually all cell types. Carrington and colleagues found that individuals who have mor...
A probe, not an echo
...t identical to that used by a cell phone to detect signals
sent to its number -- and its number only -- from the flood of electronic signals
on the air at any given time. When the transducer captures the signal, it is processed with advance...
People can learn motor skills by watching
...ematics and associated time-varying neural control signals
to muscles," they wrote....
'Promiscuous' area of brain could explain role of antidepressants
...mitter systems in the brain occasionally get their signals
crossed, causing delays in stabilizing mood. "This study provides a new site for drug discovery in one of the biggest market for drugs those that treat symptoms of depression," said Dr. John Dani, professor of neuroscience at BCM and lead author of ...
Chemical library aids in developing drug system for nerve damage
... it is hoped that eventually they will provide the signals
necessary to stimulate tissue regeneration for conditions such as nerve damage on an appropriate time scale. In conjunction with the sequence technique, Sakiyama-Elbert and her group developed a mathematical model that identifies the kind of...
Insulin-producing cells from brain cursors
...into neural cells, and exposed them to a series of signals
that are known to drive pancreatic islet development. They were able to produce clusters of insulin-producing cells that responded to glucose out of the body. When the cells were then transplanted into immunocompromised mice the cells could also be ...
UT Southwestern researchers show new drug may help treat certain forms of leukemia
...he treatment of patients with CML. The drug blocks signals
within cancer cells and prevents a series of chemical reactions that cause the cells to grow and divide. Although Gleevec has been highly successful against CML, it is unknown whether the drug can permanently eradicate all leukemia cells with the spe...
Surgery to treat vocal-cord spasms shows high success rate
... is a neurological condition that disrupts nervous signals
to the vocal cords, preventing them from vibrating...ms. The surgeon severs the nerve sending abnormal signals
to the vocal cords, and then attaches a healthy nerve from the throat to maintain the vocal cords' m...
Babies' cries linked to their health
...ude, and with short utterances. These types of cry signals
point toward a capacity problem in the respiratory...cularly in high risk infants who may have atypical signals
or high risk parents who may misperceive a normal cry," they write....
New class of drugs may treat lung tumors resistant to Iressa and Tarceva
...n the intricate way the receptor receives chemical signals
and transmits them into the cell. "These cells go through a complex process of internalization, in which the receptors take up their ligand [signalling molecule] on the cell surface, move inside the cell, release the ligand and then move back to the...
Nutrition gene key in regulating immune system
A gene that signals
a yeast cell to make bread rise and mice to eat a better diet also helps selectively silence the immune system, researchers have found. The finding may help explain how a mother avoids rejecting a genetically foreign fetus and provides a new target ...
NIST method improves timing in oscilloscopes
...raphical representations of electrical and optical signals
as waves, showing how the signals
change over time. These instruments often have inaccurate internal clocks that distort output patter...
Scientists observe infectious prion proteins invade and move within brain cells
... long projections that nerve cells develop to send signals
to other nerve cells. "This was difficult from a technical aspect because the scrapie pathogen is largely a corrupted form of a host cell protein," Dr. Baron said. "It can be hard to detect the corrupted prion protein in living infected cells and dis...
Protein essential for hearing also vital for pain perception
...he same protein that "translates" sound into nerve signals
to the brain and enables individuals to hear is also required for pain perception, researchers from Northwestern University Feinberg School of Medicine have found. Because the protein, TRPA1, is found in the majority about 75 percent -- of the body...
Patients with metabolic syndrome, moderate coronary calcium have greater risk of blocked arteries
...tes in the heart according to blood flow, emitting signals
that are captured by a special type of camera. The cardiac images show the parts of the heart which do not get enough blood flow during stress and is very effective in predicting short-term risk of a cardiac event and determining whether it is neces...
Dartmouth professor finds prescription drug advertising 'walks a communications tightrope'
...ween spoken messages, images, and other non-verbal signals
such as music, written words and body language. "I found an intense switching and fusing of styles," says Glinert. "The overall function of the commercials was a blend of promotional, informational and aesthetic. It was a strange combination at time...
Loyola employs high-tech software to target irregular heartbeat more accurately
... With atrial fibrillation, electrical signals
are so chaotic and fast that the atria may beat more than 300 times per minute, in comparison with the typical 60 to 80 beats per minute. This restricts the heart's ability to pump blood, causing reduced blood flow and increasing one's risk of clot f...
Hebrew University researcher develops compounds to control bacteria
...llective activity (or lack thereof). These sensing signals
control the physiology and pathogenicity of the ba...hese bacteria, called auto inducer-2, controls the signals
in this quorum sensing process. Jabbour has succeeded in synthesizing modified chemical compounds, ...
Gene linked to lower breast cancer risk
...t cancer risk. Cytokines are molecules that act as signals
between cells. The authors were examining the cytokine IL 10, which is involved in the development of various tumors. "In breast cancer risk, IL-10 may be a two-edged sword," Dr. Langsenlehner said. "On one hand, higher IL-10 levels could facilitate...
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