keyword
MENU ▼
Read by QxMD icon Read
search

mcao

keyword
https://www.readbyqxmd.com/read/28523591/assessment-of-the-neuroprotective-effects-of-arginine-rich-protamine-peptides-poly-arginine-peptides-r12-cyclic-r22-and-arginine-tryptophan-containing-peptides-following-in-vitro-excitotoxicity-and-or-permanent-middle-cerebral-artery-occlusion-in-rats
#1
Bruno P Meloni, Diego Milani, Jane L Cross, Vince W Clark, Adam B Edwards, Ryan S Anderton, David J Blacker, Neville W Knuckey
We have demonstrated that arginine-rich and poly-arginine peptides possess potent neuroprotective properties with arginine content and peptide positive charge being particularly critical for neuroprotective efficacy. In addition, the presence of other amino acids within arginine-rich peptides, as well as chemical modifications, peptide length and cell-penetrating properties also influence the level of neuroprotection. Against this background, we have examined the neuroprotective efficacy of arginine-rich protamine peptides, a cyclic (R12-c) poly-arginine peptide and a R22 poly-arginine peptide, as well as arginine peptides containing tryptophan or other amino acids (phenylalanine, tyrosine, glycine or leucine) in in vitro glutamic acid excitotoxicity and in vivo rat permanent middle cerebral artery occlusion models of stroke...
May 18, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28523230/targeting-resolution-of-neuroinflammation-after-ischemic-stroke-with-a-lipoxin-a4-analog-protective-mechanisms-and-long-term-effects-on-neurological-recovery
#2
Kimberly E Hawkins, Kelly M DeMars, Jon C Alexander, Lauren G de Leon, Sean C Pacheco, Christina Graves, Changjun Yang, Austin O McCrea, Jan C Frankowski, Timothy J Garrett, Marcelo Febo, Eduardo Candelario-Jalil
BACKGROUND: Resolution of inflammation is an emerging new strategy to reduce damage following ischemic stroke. Lipoxin A4 (LXA 4) is an anti-inflammatory, pro-resolution lipid mediator that reduces neuroinflammation in stroke. Since LXA 4 is rapidly inactivated, potent analogs have been synthesized, including BML-111. We hypothesized that post-ischemic, intravenous treatment with BML-111 for 1 week would provide neuroprotection and reduce neurobehavioral deficits at 4 weeks after ischemic stroke in rats...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28522551/inhibition-of-mir-143-during-ischemia-cerebral-injury-protects-neurons-through-recovery-of-the-hexokinase-2-mediated-glucose%C3%A2-uptake
#3
Xianzhu Zeng, Na Liu, Jing Zhang, Lei Wang, Zhecheng Zhang, Ju Zhu, Qian Li, Yuwen Wang
Ischemic stroke, a major cause of death, is caused by occlusion of a blood vessel, resulting in a significant reduction in regional cerebral blood flow. MicroRNAs (miRNAs) are a family of short noncoding RNAs (18 to 22 nucleotides) and bind the 3' un-translated region (UTR) of their target genes to post-transcriptionally suppress gene expression. In this study, we report miR-143 is downregulated in rat neurons but high expressed in astrocytes cells. In vivo middle cerebral artery occlusion (MCAO) and ex vivo oxygen-glucose deprivation (OGD) results showed miR-143 was significantly induced by ischemia injury...
May 18, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28522364/inhibition-of-mir-181a-protects-female-mice-from-transient-focal-cerebral-ischemia-by-targeting-astrocyte-estrogen-receptor-%C3%AE
#4
Creed M Stary, Lijun Xu, Le Li, Xiaoyun Sun, Yi-Bing Ouyang, Xiaoxing Xiong, Jing Zhao, Rona G Giffard
Whether the effect of miR-181a is sexually dimorphic in stroke is unknown. Prior work showed protection of male mice with miR-181a inhibition. Estrogen receptor-α (ERα) is an identified target of miR181 in endometrium. Therefore we investigated the separate and joint effects of miR-181a inhibition and 17β-estradiol (E2) replacement after ovariectomy. Adult female mice were ovariectomized and implanted with an E2- or vehicle-containing capsule for 14d prior to 1h middle cerebral artery occlusion (MCAO). Each group received either miR-181a antagomir or mismatch control by intracerebroventricular injection 24h before MCAO...
May 15, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28508173/neuroprotective-effects-of-lycium-barbarum-polysaccharide-on-focal-cerebral-ischemic-injury-in-mice
#5
Peng Zhao, Ru Zhou, Xiao-Yun Zhu, Gang Liu, Yu-Ping Zhao, Peng-Sheng Ma, Wei Wu, Yang Niu, Tao Sun, Yu-Xiang Li, Jian-Qiang Yu, Zhong-Ming Qian
Increasing evidence demonstrates inflammation contributes to neuronal death following cerebral ischemia. Lycium barbarum polysaccharide (LBP) has been reported to prevent scopolamine-induced cognitive and memory deficits. We recently indicated that LBP exerts neuroprotective effect against focal cerebral ischemic injury in mice via attenuating the mitochondrial apoptosis pathway. The aim of this study was to investigate the neuroprotective effects of LBP against the behavioral dysfunction induced by focal cerebral ischemia injury in mice...
May 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28506130/fullerenol-nanoparticles-decrease-ischaemia-induced-brain-injury-and-oedema-through-inhibition-of-oxidative-damage-and-aquaporin-1-expression-in-ischaemic-stroke
#6
Shamsi Darabi, Mohammad Taghi Mohammadi
BACKGROUND: We examined the possible protective effects of fullerenol nanoparticles on brain injuries and oedema in experimental model of ischaemic stroke through inhibition of oxidative damage and aquaporin-1 (AQP-1) expression. METHODS: Experiment was done in three groups of rats (N = 66): sham, control ischaemia and ischaemic treatment. Ischaemia was induced by 90-minutes middle cerebral artery occlusion (MCAO) followed by 24 hours of reperfusion. Rats received a dose of 10 mg/kg of fullerenol 30 minutes before MCAO...
May 16, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28488565/evaluation-of-parametric-response-mapping-to-assess-therapeutic-response-to-human-mesenchymal-stem-cells-after-experimental-stroke
#7
Rui He, Anaïck Moisan, Olivier Detante, Chantal Rémy, Alexandre Krainik, Emmanuel Luc Barbier, Benjamin Lemasson
Stroke is the leading cause of disability in adults. After the very narrow time frame during which treatment by thrombolysis and mechanical thrombectomy is possible, cell therapy has huge potential for enhancing stroke recovery. Accurate analysis of the response to new therapy, using imaging biomarkers, is needed to assess therapeutic efficacy. The aim of this study is to compare two analysis techniques: the parametric response map (PRM), a voxel-based technique, and the standard whole-lesion approach. These two analyses were performed on data collected at 4 time points in a transient middle cerebral artery occlusion (MCAo) model, which was treated with human mesenchymal stem cell (hMSC) therapy...
May 9, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28488007/effects-of-rat-anti-mouse-interleukin-6-receptor-antibody-on-the-recovery-of-cognitive-function-in-stroke-mice
#8
Jun Wei, Chongling Sun, Chang Liu, Qimei Zhang
This study aimed to investigate the effects of rat anti-mouse interleukin (IL)-6 receptor antibody (MR16-1) on the recovery of cognitive function in stroke mice. Adult male C57BL/6 mice were subjected to middle cerebral artery occlusion (MCAO). Mice were randomly assigned into three groups: sham group, model group, and MR16-1 group. After the treatment of MR16-1, spatial learning and memory performance of mice were evaluated by the Morris water maze (MWM) and Y-maze tests. Then, brain slices were obtained and infarct volume and neuronal apoptosis were assessed by 2,3,5-triphenyltetrazolium chloride (TTC) staining and Terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, respectively...
May 9, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28486941/neuroprotective-effect-of-salvianolate-lyophilized-injection-against-cerebral-ischemia-in-type-1-diabetic-rats
#9
Fujiang Wang, Qiansong He, Jinxin Wang, Qing Yuan, Hong Guo, Lijuan Chai, Shaoxia Wang, Limin Hu, Yue Zhang
BACKGROUND: Salvianolate lyophilized injection (SLI) has been clinically used in China for the treatment of acutely cerebral infarction. Clinical and experimental studies have shown that Diabetes mellitus (DM) not only increases the risk of ischemic stroke recurrence but also leads to poor outcomes and increases fatality rates after stroke. Our previous study has proved that SLI can reduce the infarct volume after stroke in type 1 diabetic rats. The aim of the study is to explore the mechanism of SLI on stroke outcome in type 1 diabetic (T1DM) rats...
May 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28479337/capsaicin-protects-cortical-neurons-against-ischemia-reperfusion-injury-via-down-regulating-nmda-receptors
#10
Ming Huang, Gen Cheng, Han Tan, Rui Qin, Yimin Zou, Yun Wang, Ying Zhang
Capsaicin, the ingredient responsible for the pungent taste of hot chili peppers, is widely used in the study and management of pain. Recently, its neuroprotective effect has been described in multiple studies. Herein, we investigated the underlying mechanisms for the neuroprotective effect of capsaicin. Direct injection of capsaicin (1 or 3nmol) into the peri-infarct area reduced the infarct volume and improved neurological behavioral scoring and motor coordination function in the middle cerebral artery occlusion (MCAO)/reperfusion model in rats...
May 4, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28469806/radial-extracorporeal-shock-wave-therapy-improves-cerebral-blood-flow-and-neurological-function-in-a-rat-model-of-cerebral-ischemia
#11
Nan Kang, Jing Zhang, Xiaotong Yu, Yuewen Ma
We performed middle cerebral artery occlusion (MCAO) in rats to investigate the effect and some of the underlying mechanisms of radial extracorporeal shock wave therapy (rESWT) in cerebral ischemia rats. We measured neurological function and cerebral blood flow (CBF) using a full-field laser perfusion imager and brain infarct volume on days 3, 12, and 30. Immunofluorescence, western blot, and real-time polymerase chain reaction (PCR) techniques were used to detect the expression of vascular endothelial growth factor (VEGF), neuron-specific enolase (NSE), nestin, Wnt3a, and β-catenin in the ischemic hemisphere...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28469478/spatiotemporal-changes-in-p-glycoprotein-levels-in-brain-and-peripheral-tissues-following-ischemic-stroke-in-rats
#12
Kelly M DeMars, Changjun Yang, Kimberly E Hawkins, Austin O McCrea, David M Siwarski, Eduardo Candelario-Jalil
P-glycoprotein (P-gp) is known to transport a diverse array of xenobiotics, including therapeutic drugs. A member of the ATP-binding cassette (ABC) transporter family, P-gp is a protein encoded by the gene Mdr1 in humans and Abcb1 in rodents (represented by 2 isoforms Abcb1a and Abcb1b). Lining the luminal and abluminal membrane of brain capillary endothelial cells, P-gp is a promiscuous efflux pump extruding a variety of exogenous toxins and drugs. In this study, we measured dynamic changes in Abcb1a and Abcb1b transcripts and P-gp protein in the brain, liver, and kidney after experimental stroke...
2017: Journal of Experimental Neuroscience
https://www.readbyqxmd.com/read/28467977/treatment-with-enriched-environment-reduces-neuronal-apoptosis-in-the-periinfarct-cortex-after-cerebral-ischemia-reperfusion-injury
#13
Xiuping Chen, Xin Zhang, Li Xue, Chizi Hao, Weijing Liao, Qi Wan
BACKGROUND/AIMS: Enriched environment (EE) has been reported to exert neuroprotective effect in animal models of ischemic stroke. However, the underlying mechanism remains unclear. The purpose of this study was to investigate the effect of EE treatment on neuronal apoptosis in the periinfarct cortex after cerebral ischemia/reperfusion (I/R) injury. METHODS: The cerebral I/R injury was established by middle cerebral artery occlusion (MCAO). A set of behavioral tests including the modified neurological severity score (mNSS), limb-placing test and foot-fault test were conducted...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28460604/the-15-lo-1-15-hete-system-promotes-angiogenesis-by-upregulating-vegf-in-ischemic-brains
#14
Li Chen, Yan-Mei Zhu, Yu-Nong Li, Peng-Yan Li, Di Wang, Yu Liu, You-Yang Qu, Da-Ling Zhu, Yu-Lan Zhu
OBJECTIVES: Angiogenesis promotes neurobehavioral recovery after cerebral ischemic stroke. 15(S)-hydroxyeicosatetraenoic acid (15-HETE) is one of the major metabolites of arachidonic acid by 15-lipoxygenase (15-LO) and stimulates the production of vascular endothelial growth factor (VEGF), thus, inducing autocrine-mediated angiogenesis. The present study aimed to investigate the role of 15-LO/15-HETE system on VEGF expression and angiogenesis in brain ischemia. METHODS: Rat cerebral arterial vascular endothelial cells were used to set up a cell injury model of oxygen-glucose deprivation and reoxygenation (OGD/R), mimicking a condition of brain ischemia...
May 1, 2017: Neurological Research
https://www.readbyqxmd.com/read/28456933/genetic-deletion-of-kr%C3%A3-ppel-like-factor-11-aggravates-ischemic-brain-injury
#15
Xuelian Tang, Kai Liu, Milton H Hamblin, Yun Xu, Ke-Jie Yin
Krüppel-like factors (KLFs) belong to the zinc finger family of transcription factors, and their function in the CNS is largely unexplored. KLF11 is a member of the KLF family, and we have previously demonstrated that peroxisome proliferator-activated receptor gamma-mediated cerebral protection during ischemic insults needs recruitment of KLF11 as its critical coactivator. Here, we sought to determine the role of KLF11 itself in cerebrovascular function and the pathogenesis of ischemic stroke. Transient middle cerebral artery occlusion (MCAO) was performed in KLF11 knockout and wild-type control mice, and brain infarction was analyzed by TTC staining...
April 29, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28455258/protective-effect-of-pilose-antler-peptide-on-cerebral-ischemia-reperfusion-i-r-injury-through-nrf-2-oh-1-nf-%C3%AE%C2%BAb-pathway
#16
Luning Bai, Wei Shi, Jiping Liu, Xiaoping Zhao, Yi Zhang, Zhengguo Zhou, Wen Hou, Tao Chang
The purpose of the current study was to detect the effect of pilose antler peptide (PAP) on cerebral ischemia and explore its potential mechanism. Middle cerebral artery occlusion (MCAO) was performed to investigate the effects of PAP on cerebral ischemia. The rats were randomly divided into five groups: sham group, model(I/R) group, I/R+Clopidogrel group, I/R+PAP (50mg/kg) group, I/R+PAP (100mg/kg) group. The results showed that PAP significantly reduced brain infarct size, inhibited cerebral edema, decreased th eneurological deficits...
April 25, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28453191/naringenin-prevents-ischemic-stroke-damage-via-anti-apoptotic-and-anti-oxidant-effects
#17
Kaihua Wang, Zhenzhen Chen, Jianmin Huang, Longjian Huang, Ning Luo, Xiulin Liang, Mingkun Liang, Wei Xie
Apoptosis and oxidative stress are considered to be the major factors associated with the development and progression of many ischemic cerebrovascular diseases. Naringenin (NAR) is an abundant flavanone in citrus plants and has been found to exhibit anti-oxidant, anti-carcinogenic and anti-apoptotic effects. This study aimed to investigate the anti-apoptotic and anti-oxidant effects of naringenin on ischemic stroke. In vitro, cortical neuron cells isolated from the brains of neonatal Sprague-Dawley rats were randomly divided into control, oxygen and glucose deprivation/reperfusion (OGD/Rep), NAR-L, NAR-M and NAR-H groups...
April 28, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28446953/neuroprotective-effects-of-exercise-on-brain-edema-and-neurological-movement-disorders-following-the-cerebral-ischemia-and-reperfusion-in-rats
#18
Nabi Shamsaei, Soheila Erfani, Masoud Fereidoni, Ali Shahbazi
INTRODUCTION: Cerebral ischemia and reperfusion causes physiological and biochemical changes in the neuronal cells that will eventually lead to cell damage. Evidence indicates that exercise reduces the ischemia and reperfusion-induced brain damages in animal models of stroke. In the present study, the effect of exercise preconditioning on brain edema and neurological movement disorders following the cerebral ischemia and reperfusion in rats was investigated. METHODS: Twenty-one adult male wistar rats (weighing 260-300 g) were randomly divided into three groups: sham operated, exercise plus ischemia, and ischemia group (7 rats per group)...
January 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28446216/the-effect-of-adipose-tissue-derived-stem-cells-in-a-middle-cerebral-artery-occlusion-stroke-model-depends-on-their-engraftment-rate
#19
Saskia Grudzenski, Sebastian Baier, Anne Ebert, Pim Pullens, Andreas Lemke, Karen Bieback, Rick M Dijkhuizen, Lothar R Schad, Angelika Alonso, Michael G Hennerici, Marc Fatar
BACKGROUND: In the field of experimental stem cell therapy, intra-arterial (IA) delivery yields the best results concerning, for example, migrated cell number at the targeted site. However, IA application also appears to be associated with increased mortality rates and infarction. Since many rodent studies systemically apply 1 × 10(6) cells, this could also be a consequence of engrafted cell number. The aim of this study was therefore to investigate the effect of different doses of adipose tissue-derived stem cells (ASCs) on engraftment rates and stroke outcome measured in vivo using 9...
April 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28441917/identification-of-il-17a-derived-neural-cell-type-and-dynamic-changes-of-il-17a-in-serum-csf-of-mice-with-ischemic-stroke
#20
Shujuan Li, Qingqing Dai, Jinling Yu, Ting Liu, Shuiqiao Liu, Longhui Ma, Ying Zhang, Song Han, Junfa Li
BACKGROUND: Interleukin (IL)-17A was reported to be involved in the development of post-ischemic stroke inflammatory response and functional recovery. However, the IL-17A dynamic changes in serum/cerebrospinal fluid (CSF) and its role in neuronal injury following ischemic stroke are unclear. METHODS: In vivo ischemic stroke was induced by 1 h of middle cerebral artery occlusion (MCAO) and 6 h-7 d reperfusion (R) in mice, while in vitro stroke was induced by 1 h oxygen-glucose deprivation (OGD)/24 h reoxygenation (R) in cultured cortical neurons...
April 25, 2017: Neurological Research
keyword
keyword
38350
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"