نتایج جستجو برای: chronic cerebral hypoperfusion

تعداد نتایج: 671218  

Journal: :Frontiers in Cellular Neuroscience 2023

Chronic cerebral hypoperfusion due to carotid artery stenosis is a major cause of vascular cognitive impairment and dementia (VCID). Bilateral (BCAS) in rodents well-established model VCID where most studies have focused on white matter pathology subsequent deficit. Therefore, our aim was study the implication adult hippocampal neurogenesis hypoperfusion-induced mice, its relationship with defi...

2012
Wei Duan Hong Ran Zhujuan Zhou Qifen He Jian Zheng

In previous studies, we have shown that the inactivation of the adenosine A2A receptor exacerbates chronic cerebral hypoperfusion-induced white matter lesions (WMLs) by enhancing neuroinflammatory responses. However, the molecular mechanism underlying the effect of the adenosine A2A receptor remains unknown. Recent studies have demonstrated that cystatin F, a potent endogenous cysteine protease...

Journal: :Stroke 2001
E Miyamoto H Tomimoto S Nakao Si H Wakita I Akiguchi K Miyamoto K Shingu

BACKGROUND AND PURPOSE Postoperative brain dysfunction, such as delirium, is a common complication of anesthesia and is sometimes prolonged, especially in patients with cerebrovascular disease. In the present study we investigated the effect of hypocapnia during anesthesia on neuronal damage using a rat model of chronic cerebral hypoperfusion. METHODS Chronic cerebral hypoperfusion was induce...

Journal: :Stroke 2014
Kenichiro Yata Yuhei Nishimura Miyuki Unekawa Yutaka Tomita Norihiro Suzuki Toshio Tanaka Akira Mizoguchi Hidekazu Tomimoto

BACKGROUND AND PURPOSE Proper brain function is maintained by an integrated system called the neurovascular unit (NVU) comprised cellular and acellular elements. Although the individual features of specific neurovascular components are understood, it is unknown how they respond to ischemic stress as a functional unit. Therefore, we established an in vivo imaging method and clarified the NVU res...

Journal: :jundishapur journal of natural pharmaceutical products 0
sahar mirzapour department of physiology, faculty of sciences, shahrekord branch, islamic azad university, shahrekord, ir iran maryam rafieirad department of biology, faculty of sciences, izeh branch, islamic azad university, izeh, ir iran; epartment of biology, faculty of sciences, izeh branch, islamic azad university, izeh, ir iran. tel: +98-6143643374 leila rouhi department of physiology, faculty of sciences, shahrekord branch, islamic azad university, shahrekord, ir iran

conclusions ferulago angulata extract, because of its antioxidant activities, is probably capable of removing free radicals and oxidant substances from brain and thus it can improve behavioral disorders in brain hypoperfusion ischemia model. results it was found that the administration of 400 mg/kg hydroalcoholic extract of f. angulate for two weeks after brain hypoperfusion ischemia increased ...

2012
Phanit Koomhin Kanokwan Tilokskulchai Sompol Tapechum

Cerebral hypoperfusion is associated with cognitive decline in ageing, mild cognitive impairment, vascular type dementia, and Alzheimer’s disease. The mechanisms leading to such neurological impairments are still uncertain. Although several mechanisms have been proposed as contributing factors leading to neuronal injury, glutamate excitotoxicity seems to be the relevant one. Recently, it was fo...

Journal: :Brain research 2004
Eszter Farkas Adám Institóris Ferenc Domoki András Mihály Paul G M Luiten Ferenc Bari

Chronic cerebral hypoperfusion, a mild ischemic condition is associated with advancing age and severity of dementia; however, no unanimous therapy has been established to alleviate related neurological symptoms. We imposed a permanent, bilateral occlusion of the common carotid arteries of rats (n=18) to create cerebral hypoperfusion. A mitochondrial ATP-sensitive K+ channel opener diazoxide (DZ...

Journal: :Glia 2018
Yasmina Manso Philip R Holland Akihiro Kitamura Stefan Szymkowiak Jessica Duncombe Edel Hennessy James L Searcy Martina Marangoni Andrew D Randall Jon T Brown Barry W McColl Karen Horsburgh

Chronic cerebral hypoperfusion is a key mechanism associated with white matter disruption in cerebral vascular disease and dementia. In a mouse model relevant to studying cerebral vascular disease, we have previously shown that cerebral hypoperfusion disrupts axon-glial integrity and the distribution of key paranodal and internodal proteins in subcortical myelinated axons. This disruption of my...

2017
Eszter Farkas Ádám Institóris Ferenc Domoki András Mihály Paul G.M. Luiten Ferenc Bari

Chronic cerebral hypoperfusion, a mild ischemic condition is associated with advancing age and severity of dementia; however, no unanimous therapy has been established to alleviate related neurological symptoms. We imposed a permanent, bilateral occlusion of the common carotid arteries of rats (n = 18) to create cerebral hypoperfusion. A mitochondrial ATP-sensitive K channel opener diazoxide (D...

2017
Xiaohua Li Changhong Ren Sijie Li Rongrong Han Jinhuan Gao Qingjian Huang Kunlin Jin Yinghao Luo Xunming Ji

Limb Remote ischemic conditioning (LRIC) has been proved to be a promising neuroprotective method in white matter lesions after ischemia; however, its mechanism underlying protection after chronic cerebral hypoperfusion remains largely unknown. Here, we investigated whether LRIC promoted myelin growth by activating PI3K/Akt/mTOR signal pathway in a rat chronic hypoperfusion model. Thirty adult ...

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