Sentences with phrase «reduction in brain volume»

Not exact matches

The study also suggests that the reduction in volume drives the reduction in brain activity,» says doctoral student Kristoffer NT Månsson, who led the study together with Linköping colleague Gerhard Andersson and researchers from the Karolinska Institutet, Uppsala University, Umeå University and Stockholm University.

Some 30 animals have been domesticated, he notes, and in the process every one of them has lost brain volume — typically a 10 to 15 percent reduction compared with their wild progenitors.

Specifically, compared with controls, marijuana abusers had significantly attenuated behavioral («self - reports» for high, drug effects, anxiety, and restlessness), cardiovascular (pulse rate and diastolic blood pressure), and brain DA [reduced decreases in distribution volumes (DVs) of [11C] raclopride, although normal reductions in striatal nondisplaceable binding potential (BPND)-RSB- responses to MP.

They found reductions in the volume of gray matter in multiple regions of the brains of children with OSA.

The condition has been linked to widespread reduction in the brain's tissue volume but it was observed that certain brain regions show a subtle increase in tissue over time.

MRI volumetric analysis detected significant reduction of volume of whole brain, striatum and hippocampus at 24 weeks of age in the knock - down mice.

There are precedents that parallel our apparently paradoxical finding.36, 37 In a β - amyloid immunization trial among those with probable Alzheimer disease, immunization led to significant clinical benefit, reduced β - amyloid load, and reduced brain volume.36 The investigators hypothesized that removal of β - amyloid and / or other protein constituents from brain tissue may have caused cerebral fluid shifts, resulting in brain volume reductions on magnetic resonance imaginIn a β - amyloid immunization trial among those with probable Alzheimer disease, immunization led to significant clinical benefit, reduced β - amyloid load, and reduced brain volume.36 The investigators hypothesized that removal of β - amyloid and / or other protein constituents from brain tissue may have caused cerebral fluid shifts, resulting in brain volume reductions on magnetic resonance imaginin brain volume reductions on magnetic resonance imaging.

Although reduced brain volumes are commonly associated with impaired function, 35 the groups who improved cognitive executive function and muscular function in our study also had brain volume reductions.

It has been proposed that the volume mismatch between the CCF and brain parenchyma in CKCS can be explained by impaired occipital bone development and the consequent reduction in CCF volume [5], [16], [21].

Specifically, exposure to prenatal and / or postnatal stress is associated with increased basal and stress - induced responsiveness of the hypothalamic pituitary adrenal axis, increased central corticotropin - releasing hormone and norepinephrine drive, decreased γ - aminobutyric acid / benzodiazepine functioning, multiple alterations in the serotonergic system, and reduction in hippocampal volume, a brain structure vulnerable to the neurotoxic effects of stress - induced elevations in circulating glucocorticoids (e.g., cortisol) and amino acids (e.g., glutamate).

[9] There is evidence to support the claim that stress causes brain changes, such as reductions in hippocampal volume.9 Research has also indicated that recurrent episodes of MDD might cause reductions in hippocampal volume.