Repairing brain damage from stroke may be possible with brain cell transplants
...splanting laboratory-grown neuronal cells into the brains of stroke patients is safe and well-tolerated by patients, according to a study in the August 22 issue of Neurology, the scientific journal of the American Academy of Neurology. "More research needs to be done, but these results are exciting," s...OHSU researchers capture cell transmissions on tape for first time
... transmissions take place between the cells of our brains every day. This happens whenever nerve cells reach out toward each other and connect by forming structures called synapses. At these synapses, packets of information sent by one cell are received by other cells. Researchers at Oregon Health Sciences ...UT Southwestern Nobel laureate leads bold project changing way scientists conduct research
...an said. "We actually are gluing together people's brains and their ideas, but the research is not going to be done in their individual labs." Instead, the researchers will use the Internet as their joint laboratory. "This is all Internet-enabled, and we're going to meet by the Internet. We'll have audiovis...Why does an anti-depressant work for some people, but not others?
...ed 'distinct differences' in the change pattern in brains of responders compared to non-responders on Prozac... have identified a distinct chain of events in the brains of people who respond well to a specific anti-depressant, we can start to investigate if the same is...Study describes brain changes during learning
...earning of a new skill, but that their brains had also changed. Associated with that learning, the strength of synaptic connections between neurons in the motor cortex had increased through a process consistent with the use of LTP. Importantly, the overall ra...Researchers identify promising target to slow Alzheimer's
...lates in the brain of its victims. Although normal brains contain beta-amyloid, those with the disease have comparatively large amounts. The protein is thought to produce chemicals called free radicals, which are toxic to the brain, according to the study's lead researcher, Allan Butterfield, Ph.D., a profe......at this means can be seen by considering that the brains signal at rest is, for example, 100. Once it undertakes a task, the brains activity level rises by a small amount, say, from 100 to 101. "When we look at it pixel by pixel and...... Despite these numbers, our understanding of the brains long-term response to injury is still incomplete. A brain-injured patient may look stable, but cells are still dying. Realizing this is important developing ways to recover, regenerate, and stem the loss of brain tissue, said McIntosh. We hope that b...Scientists find link between dopamine and obesity
...s measured the number of dopamine receptors in the brains of ten severely obese individuals and ten normal c...brain. Then, the researchers scanned the subjects' brains using a positron emission tomography (PET ) camera. The PET camera picks up the radioactive signal o...Area of brain found to play key role in initiating memory storage
...ily disabled the amygdala. Rabbits with unaltered brains were able to learn the consequences of two differently sounding tones: one that resulted in nothing and another followed in five seconds by a mild shock to the feet. Rabbits that correctly learned the consequences could avoid the shock by moving th...Specifying alcohol-related brain damage in young women
...rticularly if they are female, risk damaging their brains through chronic, heavy use of alcohol. "It is now well-established," said Sullivan, "that adults with years of chronic alcoholism suffer enduring mild to moderate cognitive and motor deficits even long after detoxification and with long-term sobr...Georgetown researchers to present evidence of biological cause of dyslexia
... and that these areas may not work properly in the brains of people with dyslexia. However, the researchers...or of the Center, used fMRI technology to scan the brains of 37 participants-20 with dyslexia and 17 without the disorder-and found that each participant used...Cell transplants offer hope of brain repair following stroke
...indicating the possibility of someday manipulating brains and spinal cords into repairing trauma from stroke...earchers injected the cortical stem cells into the brains of normal adult rats and adult rats damaged by stroke. The cells were marked with a chemical that g...Brain's efforts to save itself during Alzheimer's may backfire
...to rescue the afflicted brain but, over time, the brains own attempted cure makes a bad situation worse. "T...ration of cholinergic neurons. Mufson examined the brains of the transgenic mice and found that they have 70 percent fewer cholinergic neurons in the horizont...Stimulating environment protects brain against damage from lead exposure
...in chemicals important to brain cell health in the brains of rats in the enriched, stimulating environment than in the animals that were isolated and exposed to lead. In many cases, the lead-exposed animals in the stimulating environment did just as well as those animals that weren't exposed to lead. "Beha...License agreement signed to commercialize intelligent hearing aid
...ngineering and a member of the Beckman team. "Our brains utilize both the time of arrival and the intensity of impinging sound waves to perform spatial processing and filtering. This allows us to focus our attention in the direction of the desired sounds and ignore the rest."To perform this process artifi...Hopkins researcher finds retroviral 'footprint' in brains of people with schizophrenia
...rm of the disease. The footprint was absent in the brains and cerebrospinal fluid of all people who did not have schizophrenia. "While a low level of retrovirus expression occurs in most human tissues, we found an unexpectedly high level of expression in the cerebrospinal fluids from individuals whod h...Transplanted human neural stem cells improve memory in rats
...cessfully transplanted for the first time into the brains of aged rats and dramatically improved the animals...ntrol animals. Postmortem examination of the rats' brains demonstrated that the transplanted human brain cells had not only differentiated and were thriving i...Human brain has unsuspected oxygen reserve, challenging previous theories
..., Mintun and colleagues examined blood flow to the brains of nine healthy volunteers. The subjects were aske... humans. Mintun now is determining whether animals brains have a smaller capillary content than the human brain compared to their use of oxygen. Such a findin...New research shows even a single drug exposure can alter brain function
...rs said that the changes that were observed in the brains of the rats and mice may be important not just for the early stages of addiction, but also may help explain the neural basis for relapse, where a single exposure to cocaine after a period of abstinence can induce renewed drug-seeking behavior....