white matter


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Related to white matter: gray matter

white matter

the whitish tissue of the brain and spinal cord, consisting mainly of myelinated nerve fibres
References in periodicals archive ?
White Matter Injuries in Mild Traumatic Brain Injury and Post-traumatic Migranes: Diffusion Entropy Analysis.
By comparing the white matter in the brain of kids with SPD and typically developing kids, we were able to relate them to direct measurements of auditory and tactile function and find strong correlations between the white matter and sensory functioning, said senior author Pratik Mukherjee, MD, PhD, a professor of radiology and biomedical imaging and bioengineering at UCSF.
While the results show a link between high-potency cannabis use and white matter damage, they can't prove that cannabis caused the trouble.
Co-author of the report, Dr Tiago Reis Marques, said: "This white matter damage was significantly greater among heavy users of high-potency cannabis than in occasional or low-potency users and was also independent of the presence of a psychotic disorder.
In accordance with our previous observations [11, 13, 19] acute and subacute white matter impairment with cellular oligodendrocyte degeneration and myelin basic protein (MBP) expression were determined at P7 and P11, respectively.
A further follow-up MRI was done 2 months later, which showed near complete resolution of hemorrhage and white matter abnormalities, as well as a completely normal neurological exam (Figures 4(a) and 4(b)).
But the imaging revealed changes in the brain's gray and white matter that appeared unrelated to dopamine loss.
Ideguchi et al studied 412 patients with Behcet's disease, of whom 54 (13%) had neurological involvement mainly in the brainstem, white matter, and basal ganglia11.
The researchers observed a 42% greater risk of periventricular white matter lesion progression for every 50 picomole per liter decrease in vitamin B12.
Our hypothesis in this study is that HWMs observed in the frontal white matter in early stage AD patients in whom frontal cortical involvement is not expected lead to depressive symptoms relatively independent of medial temporal lobe (MU) atrophy by interrupting fronto-subcortical circuits and this leads to additional impact in patients whose activities of daily living are already affected.
It is well established that the primary cause of hemiparesis following hemispheric stroke is damage to the motor cortex or the white matter pathways in the centrum semiovale, periventricular white matter (PVWM), or the posterior limb of the internal capsule linking this cortex to the brain stem and spinal cord [1-10].