|
KMID : 1139220190150030370
|
|
Journal of Exercise Rehabilitation
2019 Volume.15 No. 3 p.370 ~ p.376
|
|
|
Preischemic treadmill exercise improves short-term memory by inhibiting hypoperfusion-induced disruption of blood-brain barrier after bilateral common carotid arteries occlusion
|
|
Lee Jae-Min
Baek Seung-Soo
Kim Tae-Woon
Park Hye-Sang
Park Sang-Seo
Park Jong-Min
Kim Youn-Jung
Lee Hyun-Seob
Shin Mal-Soon
|
|
|
Abstract
|
|
|
|
Bilateral common carotid arteries occlusion (BCCAO) causes an abrupt reduction of cerebral blood flow, and this method has been used to investigate the effects of chronic cerebral hypoperfusion on vascular dementia and neuronal injuries. Chronic cerebral hypoperfusion leads to functional changes in the hippocampus and then results in a cognitive impairment. We investigated the effect of preischemic treadmill exercise on short-term memory and blood-brain barrier integration following cerebral hypoperfusion caused by BCCAO. The rats in the preischemic treadmill exercise and BCCAO group were made to run on a treadmill for 30 min once a day for 4 weeks. At 4 weeks after performing treadmill exercise, right carotid artery was ligated, and 1 week after, left common carotid artery was ligated. At 20 days after BCCAO, short-term memory was evaluated. Half of the rats were sacrificed 2 days after BCCAO and the other rats were sacrificed at 3 weeks after BCCAO. Immunohistochemistry and western blot were performed. Preischemic treadmill exercise alleviated impairment of short-term memory in the step-down avoidance task. Preischemic treadmill exercise reduced microvascular injury in the hippocampus. Preischemic treadmill exercise prevented the reduction of zonula occludens-1 in the hippocampus and inhibited the activation of matrix metalloproteinase-9. Therefore, pre-conditioning treadmill exercise might be used as a therapeutic strategy for the prevention of stroke in patients.
|
|
|
KEYWORD
|
|
|
Preischemic treadmill exercise, Cerebral hypoperfusion, Bilateral common carotid artery occlusion, Short-term memory
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|