Tag: "firing" at medical news
University Of Kentucky One Of First To Use New Technique To Treat Atrial Flutter
...destroy electrical pathways in the heart that were firing
erratically and causing the upper chamber of the heart to quiver -- a condition called "atrial flutter." Efforts to control it with conventional therapy had failed. But late yesterday UK officials termed the new treatment a success. They said that ...
Medication Offers Hope For Relief From Burning Mouth Pain
...iconvulsant, the clonazepam may preventspontaneous firing
of the cranial nerve that carries sensations of pa...ste messages to the brainand stops the spontaneous firing
of the pain nerve. Even though eating offers relief from the pain of BMS, Grushka adds, BMS sufferer...
New Theory May Explain Ritalin Action In Hyperactivity
...pamine levels five timesnormal, their neurons were firing
at abnormally high rates, causing them tobehave as do humans with ADHD or those using cocaine. Such mice showedhyperactivity, inattentiveness and lack of impulse control in a novelenvironment. This behavior was measured by their ability to complete...
Disabilities Don't Raise Insurance Costs
...her benefitshad ever been denied. While wrongful firing
was cited as the claim most frequently filed againstemployers by people with disabilities, encouragingly 71 percent of therespondents reported that their company had a grievance or dispute resolutionprocess for dealing with disability and accommodati...
Using spatial illusion to learn how the brain processes sound
...es sound. "We know that sound is recorded in the firing
pattern of neurons in the auditorycortex---the par.... "We interpretthese results as evidence that the firing
pattern we see in cat neurons could bea model for brain processes that underlie spatial perception r...
Scientists can now see sense of smell
...pping, or whether there wassome timing of neuronal firing
involved. However, we have found that we coulddistinguish odorants just on the basis of the pattern of activated glomeruli,"Katz said. Katz believes the olfactory visualization system offers high promise instudying the machinery of the learni...
New theory of epilepsy could lead to treatment for patients
...here is a transition from thenormal uncoordinated firing
of neighboring nerve cells in the brain (neurons),...ion increases, groups of neurons can quickly start firing
in unison -which often leads to a full blown seizure. One of the most important findings in this r...
Laser heart treatment shown to be safe and effective at lowering pain associated with heart disease
...nding decrease in painassociated with angina. The firing
of the laser beams is synchronized to thepatient's heartbeat, allowing surgeons to create these channels without stoppingthe patient's heart. In the New England Journal of Medicine article, the first peer-reviewed study ofits kind, researchers from 1...
Interpretations of brain activity based on cognitive theories fail to recognize background neuronal firing
...e brain at rest is doing the same sort of neuronal firing
as it does when stimulated by a task. Brain activity slightly increases when a task is performed and those increases are generally assumed to measure activity." Shulman, in a study published in the January issue of The American Journal of Psychia...
Mouse provides clues about chronic pain
...owers the threshold that neurons must reach before firing
off a message. That makes it easier for them to send messages back and forth along sensory pathways. Back in 1999, Zhuo detected the LTP enhancement by studying slices of NR2B mouse brain. When the brain slices were exposed to a weak electrical stim...
Area of brain found to play key role in initiating memory storage
...ology that allows for the simultaneous tracking of firing
neurons in several places of the brain.In the study, involving 26 male rabbits, researchers temporarily disabled the amygdala. Rabbits with unaltered brains were able to learn the consequences of two differently sounding tones: one that resulted in...
Hand size counts in safe handgun use
...r the plaintiff to position her hand in the proper firing
position (to be described next), and neither handgun could be fired safely. In this article, I address the importance of the proper match between a handgun and its user's hand, describe a critical anthropometric dimension of the hand, and present a...
Researchers demonstrate direct, real-time brain control of cursor
...linear filters, to create a model that related the firing
of the neurons to a cursor's target position. These linear filters then allowed the researchers to reconstruct hand trajectory from any new neural signals. The electrode array was connected to a computer by thin cables. While the subject played a sim...
Penn finds atrial fibrilation cure eliminates need for pacemakers, medicine
...electrophysiologists infuse drugs that promote the firing
of so-called "hot spots" in the pulmonary veins. Once those triggers are identified with the use of sophisticated electrical recording techniques, a catheter-based ablation procedure isolates the abnormal fibers that cause them. The Penn team has dev...
Outsmarting cancer - new results from novel enzyme inhibitors
...her key enzyme the 26S proteasome is also in the firing
line for smart drugs. Proteasome is a protein complex that modulates the behaviour of cells during the cell cycle. It regulates the levels of key proteins that control the fine balance between normal cell division and normal programmed cell death. In...
Research explains possible origin of Parkinson's tremors
...But in our model, we saw cells firing
together in lockstep, creating a synchronized ... were able to reproduce the normal, random firing
of brain cells. When they simulated the loss of dopamine, a different firing
Rubber bullets not safe for crowd control
...was dependent on ballistic features of the bullet, firing
range, and anatomic site of impact. Two casualties...rously limited to the lower limbs, and the minimum firing
range should always be kept above 40 m....
'Cheerleader' brain signal may act as a task master, Science study suggests
...s during a random series of tasks, the distinctive firing
patterns disappeared. The authors believe that this signal may be at least partly responsible for conditions like obsessive compulsive disorder or drug addiction, both of which are known to involved greater than normal activity in this particular bra...
U-M study finds new target in war against graft-versus-host disease
...atients cells as the enemy. These cells respond by firing
salvos of inflammatory cytokines, especially tumor necrosis factor-alpha and interleukin-1. The cytokine barrage transform good immune cells in the patients new bone marrow into an army of destructive effector cells all primed to attack and kill the ...
Drug targets brain circuits that drive appetite and body weight
...s in mice, scientists found that d-FEN doubles the firing
rate in the POMC neurons, an effect reversed by dr...ivate POMC neurons, causing them to increase their firing
and release chemical messengers. Findings propose that d-FEN stimulates the release of serotonin in...