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Exercise preconditioning and brain ischemic tolerance.

Summary of "Exercise preconditioning and brain ischemic tolerance."

It is well established that physical exercise can exert neuroprotection both in clinical settings and animal experiments. A series of studies have demonstrated that physical exercise may be a promising preconditioning method to induce brain ischemic tolerance through the promotion of angiogenesis, mediation of the inflammatory response, inhibition of glutamate over-activation, protection of the blood brain barrier (BBB) and inhibition of apoptosis. Through these mechanisms, exercise preconditioning may reduce the neural deficits associated with ischemia and the development of brain infarction and thus provide brain ischemic tolerance. An awareness of the benefits of exercise preconditioning may lead more patients to accept exercise therapy in cases of ischemic stroke.

Affiliation

Department of Rehabilitation, Huashan Hospital, Fudan University, Shanghai 200040, People's Republic of China; Department of Sports Medicine and Rehabilitation, Medical College of Fudan University, Shanghai 200032, People's Republic of China.

Journal Details

This article was published in the following journal.

Name: Neuroscience
ISSN: 1873-7544
Pages: 170-6

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Medical and Biotech [MESH] Definitions

The application of repeated, brief periods of vascular occlusion at the onset of REPERFUSION to reduce REPERFUSION INJURY that follows a prolonged ischemic event. The techniques are similar to ISCHEMIC PRECONDITIONING but the time of application is after the ischemic event instead of before.

The exercise capacity of an individual as measured by endurance (maximal exercise duration and/or maximal attained work load) during an EXERCISE TEST.

A technique in which tissue is rendered resistant to the deleterious effects of prolonged ischemia and reperfusion by prior exposure to brief, repeated periods of vascular occlusion. (Am J Physiol 1995 May;268(5 Pt 2):H2063-7, Abstract)

A disorder characterized by a reduction of oxygen in the blood combined with reduced blood flow (ISCHEMIA) to the brain from a localized obstruction of a cerebral artery or from systemic hypoperfusion. Prolonged hypoxia-ischemia is associated with ISCHEMIC ATTACK, TRANSIENT; BRAIN INFARCTION; BRAIN EDEMA; COMA; and other conditions.

Exposure of myocardial tissue to brief, repeated periods of vascular occlusion in order to render the myocardium resistant to the deleterious effects of ISCHEMIA or REPERFUSION. The period of pre-exposure and the number of times the tissue is exposed to ischemia and reperfusion vary, the average being 3 to 5 minutes.

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