White matter fibers connect the different areas of the brain and
abnormalities in white matter may be tied to the development of dementia and other cognitive disorders.
However, despite this
reduction in white matter, cognitive tests did not find any evidence that being overweight was linked to reduced brain function.
Published in the Neurobiology of Aging, the study, which focused on detecting
changes in the white matter connections of the brain, offers tantalizing potential for the identification of biomarkers connected to the development of dementia, including Alzheimer's disease.
In particular, the study, published Jan. 6 in the journal Molecular Psychiatry, revealed
differences in the white matter of patients» brains and in the cerebellum, an area of the brain not previously linked with the disorder.
Players had troublesome changes
in white matter tracts — nerve cell bundles that carry messages across the brain — three months after injury, despite normal thinking and memory abilities, researchers reported in November in Neurology.
Phenotypic and functional characterization of T
cells in white matter lesions of multiple sclerosis patients
«Our findings suggest that differences
in white matter microstructure may partially account for the variance in functional outcomes among this population.
While this change may cause irregularities
in white matter development, Dr. Blüml noted that the newborn brain has a remarkable capacity to adapt or even «re-wire» itself — a concept known as plasticity.
«But there is quite a substantial
decrease in white matter, which is primarily composed of cells that function in axon insulation.
The study also found that people who had high long - chain omega - 3 polyunsaturated fatty acid content in blood also had fewer changes
in the white matter in their brains.
Premature birth appears to trigger developmental
processes in the white matter of the brain that could put children at higher risk of problems later in life, according to a study being presented next week at the annual meeting of the Radiological Society of North America (RSNA).
While beautifully showing the longing and absence of modern romance, this work, like several
others in White Matter (s), expresses only a tenuous connection to the exhibition's theme.
These results agree with an anatomical observation that the researchers have confirmed using MRI: amusical individuals have an excess of grey matter in the inferior frontal cortex, accompanied by a
deficit in white matter, one of whose essential constituents is myelin.
In collaboration with Emory University and UGA's College of Veterinary Medicine, the team's work shows improved
recovery in white matter, the «superhighways of connectivity» that connect key centers of the brain.
They attribute this breakdown to the loss of the myelin sheaths that normally surround part of the
neurons in the white matter and help transmit signals (Radiology, DOI: 10.1148 / radiol.2016152038).
We have corrected this error and note that in the LEFT entorhinal cortex, the microelectrode is
indeed in the white matter, so no statistics or analyses from the manuscript text were affected.
When compared to the control group, type 2 patients showed decreased
integrity in the white matter of two different areas in the brain — the cingulum bundle, which is a fiber tract that connects regions in the default - mode network, and the uncinate fasciculus, which connects regions important for executive function and memory.
In addition, they determined that volumes of human prefrontal gray and white matter match the expected volumes for the number of neurons and other cells
in the white matter when compared to other primates.
«We had performed multiple imaging studies on contact sports athletes in the past where we found changes
in white matter diffusion over the course of a single season of sport (and exposure to repetitive head impacts),» explained study author Inga Katharina Koerte of the University of Munich and Harvard Medical School.
Pediatric neuroimaging studies, up to now exclusively cross sectional, identify linear decreases in cortical gray matter and increases
in white matter across ages 4 to 20.
Lesions
in white matter tissue are evidence of a mini-stroke or some other problem impeding blood flow within the brain.
The
abnormality in white matter in the right parahippocampal gyrus may make it harder for Internet addicts to temporarily store and retrieve information, if a recent study is correct.
SSRI group infants also had «a significant increase»
in white matter connections between those two regions, relative to the other groups.
Some people's electrodes were in the entorhinal cortex's gray matter, and some were
in its white matter fibers, which extend to the hippocampus, an area known for its role in memory.
White's own studies show that veterans who were most exposed to these substances showed
reductions in white matter, and another 2010 study found smaller hippocampal volumes in the vets, much like the changes seen in victims of the 1995 sarin gas attack in Tokyo.
These lesions occur most frequently in older dogs and preferably
occur in the white matter of the brain as single or multi-focal masses.
Activated FoxO3 selectively localized to oligodendrocyte lineage
cells in white matter lesions from human preterm neonates and adults with multiple sclerosis.
Young hockey players who have suffered concussions may still show
changes in the white matter of the brain months after being cleared to return to play, researchers at Western University have found through sophisticated Magnetic Resonance Imaging (MRI) techniques.
The team also found that the insomniacs had poorer connections
in the white matter of the thalamus, a brain region that regulates consciousness, alertness and sleep.