Treadmill Exercise Suppresses Cognitive Decline and Increases White Matter Oligodendrocyte Precursor Cells in a Mouse Model of Prolonged Cerebral Hypoperfusion

AbstractClinical evidence suggests that patients with subcortical ischemic vascular dementia (SIVD) perform better at cognitive tests after exercise. However, the underlying mechanism for this effect is largely unknown. Here, we examined how treadmill exercise changes the cognitive function and white matter cellular pathology in a mouse model of SIVD. Prolonged cerebral hypoperfusion was induced in 2-month-old male C57BL/6J mice by bilateral common carotid artery stenosis. A week later, the mice were randomly divided into a group that received 6-week treadmill exercise and a sedentary group for observation. In multiple behavioral tests (Y-maze, novel object recognition, and Morris water maze tests), the treadmill exercise training was shown to ameliorate cognitive decline in the hypoperfused SIVD mice. In addition, immunohistological analyses confirmed that there was a larger population of oligodendrocyte precursor cells in the subventricular zone of exercised versus sedentary mice. Although further investigations are needed to confirm a causal link between these findings, our study establishes a model and cellular foundation for investigating the mechanisms through which exercise preserves cognitive function in SIVD.
Source: Translational Stroke Research - Category: Neurology Source Type: research

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In this study 66 clinically mildly affected patients aged 54-87 years without a history of dementia underwent extensive neuropsychological assessment after first ever ischemic stroke and again 6 months after the event (follow-up assessment). Demographic, clinical and paraclinical parameters were assessed as potential predictors for long-term cognitive outcome. RESULTS: At the group level significant performance improvements were found for most of the neurocognitive domains at the follow-up assessment. The greatest cognitive improvement was found in visuospatial processing. Immediately after stroke 54.5% of p...
Source: Der Nervenarzt - Category: Neurology Authors: Tags: Nervenarzt Source Type: research
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Source: Neurologia - Category: Neurology Source Type: research
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Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Tags: Case Report Source Type: research
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Source: Translational Stroke Research - Category: Neurology Source Type: research
Authors: Pluta R, Ułamek-Kozioł M, Januszewski S, Czuczwar S Abstract As the population is aging all over the world, the economic burden of ischemic brain injuries is constantly increasing. Human brain ischemia is one of the leading causes of premature death, significant morbidity and physical and mental disabilities, resulting in a lower quality of life and unusually high costs of health and social care. One of the most difficult problems associated with the pathology of the brain after ischemia is progressive dementia observed in people who survived the stroke. More recently, brain ischemia has been shown to el...
Source: Folia Neuropathologica - Category: Neurology Tags: Folia Neuropathol Source Type: research
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Source: Journal of the Association of Physicians of India - Category: General Medicine Tags: J Assoc Physicians India Source Type: research
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Source: Archives of Physical Medicine and Rehabilitation - Category: Rehabilitation Authors: Source Type: research
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Source: Age and Ageing - Category: Geriatrics Source Type: research
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research
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