A tiny, translucent juvenile zebrafish, on the hunt for even littler prey, has offered up a big insight into how a specific circuit of nerve cells functions in the brain. The technique used to illuminate this circuitry, and the fish model itself, provide one of the first insights into the way individual sets of neurons control a specific behavior.
OAK BROOK, Ill. – Multidetector computed tomography (CT) helps pinpoint the causes of ischemic strokes, the most common type of stroke, potentially speeding the delivery of life-saving treatments, according to a study published online and in the January issue of Radiology.
"Our results suggest that multidetector CT could become the first-line imaging tool for identifying the cause of acute ischemic stroke," said the study's lead author, Loic Boussel, M.D., Ph.D., professor of radiology at Louis Pradel Hospital in Bron, France.
(SACRAMENTO, Calif.) — Older people who are leading active, healthy lifestyles often have silent vascular disease that can be seen on brain scans that affect their ability to think, according to a new study led by UC Davis researchers and published online today in the Archives of Neurology, one of the JAMA Archives journals.
Patients with stroke who experience improvement within one hour of receiving the clot-dissolving medication tissue plasminogen activator appear more likely to do well three months later, according to a report in the November issue of Archives of Neurology, one of the JAMA/Archives journals.
The preservation of a protein found in particular synapses in the brain plays a key role in protecting against vascular dementia after a stroke, say researchers at King's College London.
The study, funded by the Dunhill Medical Trust, is published today in the 9 November issue of Neurology, the medical journal of the American Academy of Neurology. Researchers say the study findings increase understanding of vascular dementia, and highlight a possible target for future diagnoses and treatment of the condition.
TORONTO, ON – Psychologists at the University of Toronto have shown that the nature of a social interaction has the ability to influence an individual's sensitivity to physical pain. The discovery could have significant clinical implications for doctor-patient relationships and the general well-being of an individual on a daily basis.
Toronto, Canada – A Canadian science team has found more dramatic evidence that speaking two languages can help delay the onset of Alzheimer's symptoms by as much as five years.
The latest study, led by Baycrest's Rotman Research Institute, examined the clinical records of more than 200 patients diagnosed with probable Alzheimer's disease and found that those who have spoken two or more languages consistently over many years experienced a delay in the onset of their symptoms by as much as five years. The study is published in the Nov. 9th issue of Neurology.
One drug's startling ability to restore retinal health in the eyes of diabetic mice has researchers wanting to learn more about how it works and whether it might do the same for people.
WASHINGTON, D.C., November 8, 2010 — A study published in the November edition of Alzheimer's & Dementia: The Journal of the Alzheimer's Association suggests that taking docosahexaenoic acid (DHA) may improve memory and learning in older adults with mild cognitive impairments. This is promising news for many aging Americans who are searching for options to maintain memory and support overall cognitive health.
Irvine, Calif., Nov. 8, 2010 — A small amount of bleeding in the brain seems to be common among older individuals, according to a UC Irvine study.
Neurologist Dr. Mark Fisher and neuropathologist Dr. Ronald Kim found that cerebral microbleeds are highly prevalent in the aging brain – and not primarily products of stroke-related injury, hypertension or neurodegenerative diseases such as Alzheimer's, as had been thought.
Children with learning difficulties can benefit from being encouraged to find their own way to solve arithmetic problems, according to new research from the University of Strathclyde in Glasgow, Scotland.
The brains of newborn humans and Neanderthals are about the same size and appear rather similar overall. It's mainly after birth, and specifically in the first year of life, that the differences between our brains and those of our extinct relatives really take shape, according to a report published in the Nov. 9 issue of Current Biology.
The findings are based on comparisons of virtual imprints of the developing brain and surrounding structures (known as endocasts) derived from the skulls of modern and fossilized humans, including that of a newborn Neanderthal.
Learning a hobby or other complex task in childhood with assistance from a trusted adult may help guard against the emergence of a personality disorder (PD) later on in life, reports a study in the current issue of the journal, Development and Psychopathology.
Do you like to do good things for other people? If so, your genes might be responsible for this. At least, the results of a study conducted by researchers of the University of Bonn suggest this. According to the study, a minute change in a particular gene is associated with a significantly higher willingness to donate. People with this change gave twice as much money on average to a charitable cause as did other study subjects. The results have now been published in the journal Social Cognitive & Affective Neuroscience (doi: 10.1093/scan/nsq083).
