Obese People at Greater Risk for Alzheimers Aug 28, 2009
In looking at both grey matter and white matter of the brain, they found that the people defined as obese had lost brain tissue in the frontal and temporal lobes, areas of the brain critical for planning and memory, and in the anterior cingulate gyrus (attention and executive functions), hippocampus (long term memory) and basal ganglia (movement). Overweight people showed brain loss in the basal ganglia, the corona radiata, white matter comprised of axons, and the parietal lobe (sensory lobe). (Newsmax)
Obesity can inflict big toll on brain Aug 27, 2009
Overweight subjects showed brain loss in the basal ganglia, but also showed shrinkage in the corona radiata, white matter comprised of axons, and the parietal lobe (sensation and cognition). The study concludes that obese people's brains look 16 years older than those of lean people, while the brains of overweight people look eight years older. (Pittsburgh Post-Gazette, PA)
Overweight People Have Skinnier Brains Aug 27, 2009
In looking at both gray matter and white matter of the brain, the researchers said they found that the people defined as obese had lost brain tissue in the frontal and temporal lobes, areas of the brain critical for planning and memory, and in areas involved in attention, long-term memory and movement. "The brains of obese people looked 16 years older than the brains of those who were lean, and in overweight people looked eight years older," said Thompson. (Click2Houston, TX)
Teens' risky behaviour may signal mature brain Aug 26, 2009
Emory University neuroscientists used a form of magnetic resonance imaging (MRI), diffusion tensor imaging (DTI) to measure structural changes in brain's white matter and probe the link between high risk taking and cerebral development ... "We were surprised to discover that risk-taking was associated with more highly-developed white matter -- a more mature brain," says Berns ... Both grey and white matter are important for understanding brain function. (India Times, India -- Health/Science)
Surprising results in teen study: adolescent risky behavior may signal mature brain Aug 26, 2009
A new study using brain imaging to study teen behavior indicates that adolescents who engage in dangerous activities have frontal white matter tracts that are more adult in form than their more conservative peers ... In order to better understand the relationship between high risk-taking and the brain's development, Emory University and Emory School of Medicine neuroscientists used a form of magnetic resonance imaging (MRI) called diffusion tensor imaging (DTI) to measure structural changes in... (EurekAlert!)
Are the Brains of Reckless Teens More Mature Than Those of Their Prudent Peers? Aug 26, 2009
Countering conventional wisdom, a brain-imaging study finds that, in risk-taking teens, the brain's white matter looks like that of an adult ... Risk and white matter ... Second, a technology known as diffusion tensor imaging (DTI) was used to assess the development of white matter in the frontal cortex of teens' brains. (Scientific American)
Why Repair Of Brain's Wiring Fails Aug 25, 2009
They lesioned a small region of white matter in healthy mice, then monitored the repair process, examining the tissue after five, 10, and 14 days ... The researchers also tested human tissue for the presence of Tcf4, and found the protein in areas damaged by MS but not in healthy white matter ... (May 8, 2007) Scientists have discovered to their surprise that nerves in the mammalian brain's white matter do more than just ferry information between different brain regions, but in fact process... (Science Daily)
Concussions And Brain Tissue Injury Linked Aug 25, 2009
Patients and controls also underwent diffusion tensor imaging (DTI), a recently developed MRI-based imaging technique that can detect subtle changes in the brain by measuring the diffusion of water in the brain's white matter ... 27, 2007) Researchers report that diffusion tensor imaging can identify structural changes in the white matter of the brain that correlates to cognitive deficits even in patients with mild traumatic brain. (Science Daily)
Neural Pathway Missing In Tone-deaf People Aug 20, 2009
29, 2006) A new study has discovered that the brains of people suffering from tone-deafness are in fact lacking in white matter. The study published in the current issue of Brain was conducted by a team of. (Science Daily)
Brain Damage Seen On Brain Scans May Predict Memory Loss In Old Age Aug 15, 2009
Participants underwent brain scans where scientists looked for small areas of brain damage called white matter hyperintensities, often referred to as ministrokes ... The study found that people with white matter hyperintensities were nearly twice as likely to have mild cognitive impairment that included memory loss ... "The most interesting finding in this study was that white matter hyperintensities, or ministrokes, predicted memory problems, while strokes predicted non-memory problems," said... (Science Daily)
Study Ties Mini-Strokes to Memory Loss Aug 12, 2009
The researchers used brain scans to check for white matter hyperintensities, which are small areas of damage caused by mini-stroke, and for areas of dead brain tissue caused by stroke ... "The most interesting finding in this study was that white matter hyperintensities, or mini-strokes, predicted memory problems, while strokes predicted non-memory problems," study author Dr. Jose Luchsinger, of Columbia University Medical Center in New York City, said in a news release from the American Academy... (MEDLINEplus)
Psychopaths have faulty brain connections Aug 8, 2009
But a new technique, called diffusion tensor magnetic resonance imaging (DT-MRI), allowed the researchers to look at the white matter tract linking the two key brain areas. As well as finding clear structural deficits in the tract in psychopathic brains, they also found the degree of abnormality was significantly linked to the degree of psychopathy. (MSNBC -- Health)
Brain Difference In Psychopaths Identified Aug 5, 2009
There is a white matter tract that connects the amygdala and OFC, which is called the uncinate fasciculus (UF). However, nobody had ever studied the UF in psychopaths. (Science Daily)
High Blood Pressure May Lead To 'Silent' Strokes Jul 31, 2009
Also, people with another type of small brain damage called white matter hyperintensities were nearly five times as likely to have silent strokes as those without the condition. The study was supported by the National Health and Medical Research Council of Australia. (Science Daily)
People Over 60 at Risk for 'Silent Stroke' Jul 29, 2009
Also, study participants with a condition called white matter hyperintensities were almost five times more likely to have a silent stroke than those without this small type of brain damage, the researchers found. Although relatively symptom-free, silent strokes are a major health problem among the elderly, according to the American Academy of Neurology. (MEDLINEplus)
White matter helps brain learn Jul 24, 2009
For FREE access to this article and more, you must register. The article you are attempting to read is only available to registered users of The Scientist. (The Scientist)
Fist-sized Tumor From Brain With Help Of New 3-D Brain Mapping Jul 21, 2009
Leach processed the images, highlighting the location of speech and movement areas, white matter tracts and arteries and veins. He also highlighted the tumor location, then imported all of the information into BrainLAB s navigation software at University Hospital. (Science Daily)
White Matter Changes May Predict Dementia Risk Jul 16, 2009
The study found that those who had the fastest rate of growth in the amount of small areas of brain damage, or white matter hyperintensities, were more likely to later develop permanent thinking problems that in many cases led to dementia than those with a slow rate of growth in these types of brain lesions ... "We need to determine factors that can decrease the accumulation of white matter hyperintensities over time," said study author Lisa Silbert, MD, MCR, of Oregon Health & Science... (Science Daily)
Difference In The Way Children With Autism Learn New Behaviors Described Jul 11, 2009
The study findings also provide support for observations from previous studies suggesting that autism may be associated with abnormalities in the wiring of the brain; specifically, with overdevelopment of short range white matter connections between neighboring brain regions and underdevelopment of longer distance connections between distant brain regions. The findings from this study are consistent with this pattern of abnormal connectivity, as the brain regions involved in proprioception are... (Science Daily)
Alterations in brain's white matter key to schizophrenia, UCLA study shows Jun 23, 2009
White matter 'integrity' may be predictive of functional outcome ... In the first study of its kind, the researchers used a novel form of brain imaging to discover that white matter in the brains of adolescents at risk of developing schizophrenia does not develop at the same rate as healthy people ... Reporting in the online edition of the journal Biological Psychiatry, lead author Katherine Karlsgodt, a postdoctoral fellow in UCLA's Department of Psychology, and senior authors Tyrone Cannon and... (EurekAlert!)
It seems that money and Silly Putty grow on trees Jun 21, 2009
He might, however, share a personal memory that is stuck between grey and white matter inside his balding, mis-shaped skull. But first, there isn't a better time to stop using the third-person, singular, personal pronoun as "he" isn't fooling anyone. (Bismarck Tribune, ND)
Marisols Maze Jun 18, 2009
A foundation has been established that is actively raising funds in Marisol s memory and working hard toward its goals: Support of ongoing research in the cause, origin and cure of CACH (Vanishing White Matter Disease) Leukodystrophy and the support of families who are struggling to care for children with neurological disorders. This park, and in particular Marisol s Maze and Marisol s Bench will provide us with a wonderful space in which we can all remember Marisol s loving smile, said... (Burlington Union, MA)
A Man with Progressive Neurologic Deficits May 28, 2009
Ten months before this admission, magnetic resonance imaging (MRI) of the brain, performed after the administration of gadolinium, showed enhancement of the genu and rostrum of the corpus callosum, and T2-weighted signal abnormality in the white matter and cortex of the left frontal, temporal, and parietal lobes. He was. (New England Journal of Medicine)
Protein Identified As Critical To Insulating The Body's Wiring Could Also Become Treatment Target May 27, 2009
12, 2007) Subplate neurons -- once thought to die after directing the wiring of the cerebral cortex or gray matter -- remain in the white matter of the adult brain in small numbers and maintain activity. . (Science Daily)
Inside the Autistic Mind May 21, 2009
The distribution of white matter, the nerve fibers that link diverse parts of the brain, is abnormal, but it's not clear how much is the cause and how much the result of autism. 1. (Time.com)
Cerebral Neurons Assist Adjacent Neurons May 20, 2009
12, 2007) Subplate neurons -- once thought to die after directing the wiring of the cerebral cortex or gray matter -- remain in the white matter of the adult brain in small numbers and maintain activity. (Nov. (Science Daily)
Popular cancer drug linked to often fatal brain virus May 19, 2009
A brain biopsy and a spinal tap confirmed the diagnosis of a swiftly moving and often fatal viral brain infection called progressive multifocal leukoencephalitis (PML) that attacks the brain's white matter. Both had lymphoma and had been taking the popular cancer drug rituximab (brand name Rituxan) before they developed the brain infection. (EurekAlert!)
Altered structures in Tourette's brain May 13, 2009
To identify TS related abnormalities in gray and white matter we used optimized voxel-based morphometry (VBM) and magnetization transfer imaging (MTI) which are more sensitive to tissue alterations than conventional MRI and provide a quantitative measure of macrostructural integrity ... Decreases in white matter volumes were detected in the right inferior frontal gyrus, the left superior frontal gyrus and the anterior corpus callosum ... In MTI, white matter reductions were seen in the right... (BioMed Central)
Glutamate Identified As Predictor Of Disease Progression In Multiple Sclerosis May 8, 2009
(May 8, 2007) Scientists have discovered to their surprise that nerves in the mammalian brain's white matter do more than just ferry information between different brain regions, but in fact process information the. . (Science Daily)
Gluten Sensitivity and Mental Illne... May 4, 2009
In other studies, untreated celiac disease is also associated with the development of lesions and scaring in the white matter of the brain. Gluten Free Diet Helped Patients With Schizophrenia. (Suite101.com)
Binge Drinking May Damage Teens' Brains Apr 28, 2009
White matter' impairment could mean a 10% decline in information recall, scientists say ... WEDNESDAY, April 22 (HealthDay News) -- When teens go on a binge drinking episode, they may be doing serious damage to the sensitive "white matter" in their brain, a new MRI-based study suggests ... White matter is involved in relaying information between brain cells, the researchers said. (MEDLINEplus)
Brain metastases hijack neuron-supporting cells to resist chemotherapy Apr 20, 2009
"You take the tumor out, and the brain and white matter expand over time until you see no sign of the resected tumor," Sawaya said. The patient lived for more than five years. (EurekAlert!)
Prenatal meth use studied Apr 17, 2009
The research, the first of its kind, showed that children with prenatal exposure had differences in the white matter, which carries messages throughout the brain, and in the maturation of their brains compared with unexposed children. "Our findings suggest prenatal meth exposure accelerates brain development in an abnormal pattern," Chang said. (Honolulu Advertiser)
Prenatal Methamphetamine Exposure Linked To Abnormal Brain Development Apr 17, 2009
The scans showed that children with prenatal meth exposure had differences in the white matter structure and maturation of their brains compared to unexposed children. The children with prenatal meth exposure had up to four percent lower diffusion of molecules in the white matter of their brains ... "While we don't know how prenatal meth exposure may lead to lower brain diffusion, less diffusion of molecules in white matter typically reflects more compact axonal fibers in the brain," said Chang.... (Science Daily)
Brain Scans Reveal Secrets of 'Writer's Cramp' Apr 17, 2009
Lehericy explained that although prior research had already linked writer's cramp to problematic alterations in the gray matter in certain brain regions, the current investigation identified problems with the white matter of certain nerve pathways in brain areas that are responsible for generating motor commands. Such white matter, explained Lehericy, "contains fiber bundles that convey information from one brain region to another, as well as to the spinal cord." ... Among the writers cramp... (MEDLINEplus)
Fetal Exposure to Methamphetamine May Harm Child's Brain Apr 17, 2009
By mapping out microscopic structural changes in the children's' brains, the researchers identified clear differences in both "white matter structure" and brain maturation between the exposed and unexposed children. The study authors say the disparities may reflect abnormal developmental patterns among exposed versus unexposed offspring. (MEDLINEplus)
UH study shows meth's effects on fetal brain development Apr 16, 2009
Diffusion tensor imaging, which allows evaluation of brain microstructures, showed meth-exposed children had abnormal development in the white matter that carries messages throughout the brain. The researchers said they plan to follow the children as they grow to see if the differences persist. (Honolulu Advertiser)
Imaging Reveals Abnormalities In Pathways Connecting Brain Areas In Those With Writer's Cramp Apr 16, 2009
All participants underwent diffusion-tensor magnetic resonance imaging (DTI), which has been shown to assess the status of white matter (coated nerve fibers that allow impulses to travel through the brain). The DTI scans of patients with writer's cramp revealed areas of abnormalities in the white matter of nerve pathways connecting the main sensorimotor cortex to brain areas below the cortex, such as the thalamus. (Science Daily)
Writers Cramp? Blame Your Brain Apr 16, 2009
D, and his colleagues found that people with writers cramps had abnormalities in the white matter of nerve pathways as well. The researchers studied 52 right-handed people. (Newsmax)
Human ES Cells Progress Slowly In Myelin's Direction Apr 11, 2009
(May 8, 2007) Scientists have discovered to their surprise that nerves in the mammalian brain's white matter do more than just ferry information between different brain regions, but in fact process information the. (Dec. (Science Daily)
> read more Apr 9, 2009
I haven't yet acquired a taste for dark matter I'm more a "white matter" kind of guy. But I sure enjoy ogling the 6dF project's maps of the southern sky at high-res and the nifty fly-through animations assembled by the team. (SkyAndTelescope.com)
A Wiring Diagram in the Brain for Depression Apr 7, 2009
Working with fellow imaging experts Heidi Johansen-Berg and Tim Behrens of the University of Oxford and others, Mayberg used DTI to produce detailed images of area 25 s tractography, the layout of the white matter tracts that connect disparate brain regions. They identified five connective tracts that run through this pea-size region, carrying neural traffic among five vital areas: the amygdala, a deep-brain area that mode-rates fear and other emotions; the orbi-tofrontal and medial frontal... (Scientific American)
Gulf War Veterans Display Abnormal Brain Response To Specific Chemicals Mar 25, 2009
Recent studies had shown evidence of chemical abnormalities and shrinkage of white matter in the brains of veterans exposed to certain toxic chemicals, such as sarin gas during the 1991 Persian Gulf War. The research, published in the March issue of the journal Psychiatry Research: Neuroimaging,enables investigators to visualize exact brain structures affected by these chemical exposures, Dr. Haley said. (Science Daily)
Mechanism Of Alzheimer's Suggests Combination Therapy Needed Mar 24, 2009
23, 2009) Researchers at the University of Illinois at Chicago College of Medicine have discovered a mode of action for mysterious but diagnostic protein snarls found in the brains of Alzheimer's patients that suggests a one-two punch of therapy may be needed to combat the neurodegenerative disease. Alzheimer's disease, which may affect as many as 5 million Americans and is among the most costly diseases to society in the United States and Europe, is characterized by two distinctive protein... (Science Daily)
You owe your intelligence to your parents Mar 19, 2009
While an MRI scan shows the volume of different tissues in the brain by measuring the amount of water present, HARDI tracks how water diffuses through the brain's white matter - a way to measure the quality of its myelin. HARDI measures water diffusion,' said Thompson, who is also a member of the UCLA Laboratory of Neuro-Imaging. (India Times, India -- Health/Science)
Well-known Enzyme Is Unexpected Contributor To Brain Growth Mar 14, 2009
(July 22, 2003) Changes in the brain's white matter, a common occurrence among the elderly, increase a person's risk of having multiple strokes, according to a report in today's rapid access issue of. (Feb. (Science Daily)
Brain damage found in cognitively normal people with Alzheimer's marker Mar 11, 2009
They used a computer program to analyze the MRI scans and determine whole brain volume, a measurement of the amount of space taken up by a patient's gray and white matter minus the CSF fluid circulating in the skull. Participants with normal levels of A-beta 42 in their CSF had whole brain volumes within expected ranges. (EurekAlert!)
Aging Brain May Contribute to Some Hearing Loss Feb 19, 2009
"There are past indications of that. But this is the first study I've heard of to explore this idea in a new way by use imaging in humans, and that's exciting and provides this finding with some sizzle. And locating evidence of the problem in the gray matter part of the brain -- where neural processing goes on, as opposed to the white matter which is the communication zone, so to speak -- is also pretty new and important.". HealthDay. (MEDLINEplus)
Moms-to-Be Who Drink May Damage Fetus' White Matter Feb 7, 2009
FRIDAY, Dec. 19 (HealthDay News) -- Drinking alcohol during pregnancy can damage white matter in a fetus' frontal and occipital lobes, which play a major role in executive function and visual processing ... "The brain's white matter is made up of nerve bundles that transfer information between brain regions," study corresponding author Susanna L. Fryer, a researcher at San Diego State University's Center for Behavioral Teratology, said in a news release. (MEDLINEplus)
Memory Loss Tied to Brain's White Matter Feb 7, 2009
THURSDAY, Jan. 15 (HealthDay News) -- The "white matter" that connects the regions of the brain may have more of a role in memory and cognitive loss than previously believed, a new study says. By comparing brain scans of groups of healthy young and old adults, Massachusetts Institute of Technology (MIT) neuroscientists discovered a relationship between loss of memory and cognitive performance in older people and the deterioration of the white matter in the parts of their brains related to those... (MEDLINEplus)
