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Retinoic acid regulates the ubiquitin– proteasome system in a middle cerebral artery occlusion animal model

Kang JB, Shah MA, Park DJ, Koh PO

Background: Retinoic acid is a major metabolite of vitamin A and exerts beneficial effects including anti-oxidant and anti-inflammatory activities in neurons. The ubiquitin–proteasome system is an important biological system that...
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Application time and persistence of transcranial direct current stimulation (tDCS) against neuronal death resulting from transient cerebral ischemia

Lee JH, Jung BH, Yoo KY

Background: Transcranial direct current stimulation (tDCS) has been studied as a tool to stimulate the functional recovery of neurons after stroke. Although this device has recently begun to be utilized...
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Identification of Differentially-Methylated Genes and Pathways in Patients with Delayed Cerebral Ischemia Following Subarachnoid Hemorrhage

Kim BJ, Youn DH, Chang IB, Kang K, Jeon JP

Objective : We reported the differentially methylated genes in patients with subarachnoid hemorrhage (SAH) using bioinformatics analyses to explore the biological characteristics of the development of delayed cerebral ischemia (DCI). Methods...
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Readmission into intensive care unit in patients with aneurysmal subarachnoid hemorrhage

Park HS, Lee SH, Kim KM, Cho WS, Kang HS, Kim JE, Ha EJ

Objective: Aneurysmal subarachnoid hemorrhage (aSAH) is a devastating cerebrovascular event; patients are routinely admitted to the intensive care unit (ICU) for initial management. Because complications may be delayed, unplanned ICU...
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Systemic macrophage depletion attenuates infarct size in an experimental mouse model of stroke

Lee SW, Song DJ, Ryu HS, Kim YS, Kim TS, Joo SP

Objective: Macrophages have been shown to play important roles in various pathophysiological processes of the central nervous system via neuroinflammation, leading to an increased interest in macrophage biology. Circulating blood...
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Quercetin attenuates the reduction of parvalbumin in middle cerebral artery occlusion animal model

Park DJ, Kang JB, Shah FA, Koh PO

Background: Calcium is a critical factor involved in modulation of essential cellular functions. Parvalbumin is a calcium buffering protein that regulates intracellular calcium concentrations. It prevents rises in calcium concentrations...
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Dual antiplatelet treatment associated with reduced risk of symptomatic vasospasm and delayed cerebral ischemia in aneurysmal subarachnoid hemorrhage

Sun GU, Park E, Kim DW, Kang SD

Objective: Cerebral vasospasm and delayed cerebral ischemia (DCI) are considered complications after aneurysmal subarachnoid hemorrhage (aSAH). Several hypotheses involving platelet activation have been asserted in the pathophysiology of cerebral vasospasm...
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Brain Factor-7® improves learning and memory deficits and attenuates ischemic brain damage by reduction of ROS generation in stroke in vivo and in vitro

Noh Y, Lee JW, Hong J, Kim SS, Ahn JH, Lee TK, Kim B, Won MH

Brain Factor-7® (BF-7), silk fibroin peptide, is known to be effective in improvement of memory and learning ability. In this study, the effects of BF-7 (10 mg/kg, p.o., pre-treatment for 7 days...
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Neuroprotective Effect of Chronic Intracranial Toxoplasma gondii Infection in a Mouse Cerebral Ischemia Model

Lee SH, Jung BK, Song H, Seo HG, Chai JY, Oh BM

Toxoplasma gondii is an obligate intracellular protozoan parasite that can invade various organs in the host body, including the central nervous system. Chronic intracranial T. gondii is known to be...
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Anesthesia for the patient with a recently diagnosed concussion: think about the brain!

Rasouli MR, Kavin M, Stache S, Mahla ME, Schwenk ES

Some patients require emergent, urgent, or elective surgery in the time period immediately following diagnosis of concussion. However, changes in brain homeostatic mechanisms following a concussion and concern for secondary...
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Platycarya strobilacea leaf extract protects mice brain with focal cerebral ischemia by antioxidative property

Lee JH, Jeong JH, Jeong YG, Kim DK, Lee NS, Na CS, Doh ES, Han SY

The leaf extract of Platycarya strobilacea (PSL) has long been recognized as possessing various health-promoting activities. However, information on its possible protective effects against ischemic stroke is currently lacking. Here,...
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Neuregulin 1/ErbB4 signaling attenuates neuronal cell damage under oxygen-glucose deprivation in primary hippocampal neurons

Yoo JY, Kim HB, Yoo SY, Yoo HI, Song DY, Baik TK, Lee JH, Woo RS

The hippocampus is one of the most important brain areas of cognition. This region is particularly sensitive to hypoxia and ischemia. Neuregulin-1 (NRG1) has been shown to be able to...
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Correlation between Carotid Arterial Calcium Score and Silent Cerebrovascular Lesions in Obstructive Sleep Apnea Patients: by Using Upper Airway CT and Brain MRI

Kim MS, Kang EJ, Bae WY, Kim JK, Kim CH, Choi JH, Kim SH, Kim DY, Lee KN

PURPOSE: To investigate the relationship between carotid arterial calcium score (CarACS) and silent cerebrovascular lesions in patients with obstructive sleep apnea (OSA). MATERIALS AND METHODS: This study involved retrospective evaluation of...
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Fully Automatic Segmentation of Acute Ischemic Lesions on Diffusion-Weighted Imaging Using Convolutional Neural Networks: Comparison with Conventional Algorithms

Woo I, Lee A, Jung SC, Lee H, Kim N, Cho SJ, Kim D, Lee J, Sunwoo L, Kang DW

OBJECTIVE: To develop algorithms using convolutional neural networks (CNNs) for automatic segmentation of acute ischemic lesions on diffusion-weighted imaging (DWI) and compare them with conventional algorithms, including a thresholding-based segmentation. MATERIALS...
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Caffeic acid phenethyl ester protects against photothrombotic cortical ischemic injury in mice

Hwang SA, Kim CD, Lee WS

In this study, we aimed to investigate the neuroprotective effects of caffeic acid phenethyl ester (CAPE), an active component of propolis purified from honeybee hives, on photothrombotic cortical ischemic injury...
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Quercetin attenuates the injury-induced reduction of γ-enolase expression in a middle cerebral artery occlusion animal model

Jeon SJ, Kim MO, Ali-Shah F, Koh PO

Quercetin, a natural flavonoid, copiously exists in vegetable, fruits and tea. Quercetin is beneficial to neurodegenerative disorders via its strong anti-oxidant and anti-inflammatory activities. γ-Enolase is one of the enzymes...
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Pre-treated Populus tomentiglandulosa extract inhibits neuronal loss and alleviates gliosis in the gerbil hippocampal CA1 area induced by transient global cerebral ischemia

Park JH, Lee TK, Ahn JH, Shin BN, Cho JH, Kim IH, Lee JC, Kim JD, Lee YJ, Kang IJ, Hong S, Kim YH, Jeon YH, Lee YL, Won MH

The genus Populus (poplar) belonging to the Salicaceae family has been used in traditional medicine, and its several species show various pharmacological properties including antioxidant and anti-inflammatory effects. No study...
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Endogenous Agmatine Induced by Ischemic Preconditioning Regulates Ischemic Tolerance Following Cerebral Ischemia

Kim JH, Kim JY, Jung JY, Lee YW, Lee WT, Huh SK, Lee JE

Ischemic preconditioning (IP) is one of the most important endogenous mechanisms that protect the cells against ischemia-reperfusion (I/R) injury. However, the exact molecular mechanisms remain unclear. In this study, we...
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Cerebral ischemic injury decreases α-synuclein expression in brain tissue and glutamate-exposed HT22 cells

Koh PO

α-Synuclein is abundantly expressed in neuronal tissue, plays an essential role in the pathogenesis of neurodegenerative disorders, and exerts a neuroprotective effect against oxidative stress. Cerebral ischemia causes severe neurological...
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Feasibility and Safety of Mild Therapeutic Hypothermia in Poor-Grade Subarachnoid Hemorrhage: Prospective Pilot Study

Choi W, Kwon SC, Lee WJ, Weon YC, Choi B, Lee H, Park ES, Ahn R

Therapeutic hypothermia (TH) improves the neurological outcome in patients after cardiac arrest and neonatal hypoxic brain injury. We studied the safety and feasibility of mild TH in patients with poor-grade...
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