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Current Neurovascular Research

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https://www.readbyqxmd.com/read/29189156/post-stroke-constraint-induced-movement-therapy-increases-functional-recovery-angiogenesis-and-neurogenesis-with-enhanced-expression-of-hif-1%C3%AE-and-vegf
#1
Ce Li, Bei Zhang, Yulian Zhu, Yingying Li, Peile Liu, Beiyao Gao, Shan Tian, Liang Du, Yu-Long Bai
BACKGROUND: Constraint-Induced Movement Therapy (CIMT) is one efficient approach to improve functional recovery after ischemic stroke. The underlying molecular mechanism remains unclear. In the current study, we investigated the effects of CIMT on angiogenesis and neurogenesis. To start linking our findings to molecular mediators, we further examined the expression of hypoxia-inducible factor-1α (HIF-1α), factor inhibiting HIF-1 (FIH-1) and vascular endothelial growth factor (VEGF)...
November 28, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29185396/new-directions-for-dementia
#2
EDITORIAL
Kenneth Maiese
No abstract text is available yet for this article.
November 28, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29149835/forkhead-transcription-factors-formulating-a-foxo-target-for-cognitive-loss
#3
Kenneth Maiese
BACKGROUND: With almost 47 million individuals worldwide suffering from some aspect of dementia, it is clear that cognitive loss impacts a significant proportion of the global population. Unfortunately, definitive treatments to resolve or prevent the onset of cognitive loss are limited. In most cases such care is currently non-existent prompting the need for novel treatment strategies. METHODS: Mammalian forkhead transcription factors of the O class (FoxO) are one such avenue of investigation that offer an exciting potential to bring new treatments forward for disorders that involve cognitive loss...
November 15, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29149834/cystatin-c-in-cerebrovascular-disorders
#4
Yaru Zhang, Li Sun
Cystatin C (CysC), a cysteine protease inhibitor, has been widely proven to be a highly sensitive biomarker to predict the kidney function. The similarity of the renal and cerebral small vessels has awakened a surge of studies suggesting that CysC plays a key role in various cerebrovascular disorders. This review focuses on four major mechanisms of CysC in a variety of cerebrovascular diseases. (1)The property of the CysC Leu-68-Gln (L68Q) variant to aggregate and the property of the wild type CysC protein to co-aggregate with Amyloid-β (Aβ); (2)The disruption of equilibrium between CysC and related cysteine proteases; (3)The function of CysC as an inflammatory inducing factor; (4)The ability of CysC to induce autophagy...
November 15, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29119925/post-treatment-with-a-hydrogen-sulfide-donor-limits-neuronal-injury-and-modulates-potassium-voltage-gated-channel-subfamily-d-member-2-kv4-2-and-potassium-channel-interacting-protein-3-kchip3-during-transient-global-cerebral-ischemia
#5
Cheng-Ping Bai, ChenLiang Zhao, Lijuan Shen
BACKGROUND: Although the neuroprotective effect of sodium hydrosulfide (NaHS, a hydrogen sulfide donor) pretreatment has been revealed, the effect of NaHS post-conditioning remains largely unknown. OBJECTIVE: We aimed to investigate the neuroprotective effect of NaHS post-conditioning against transient global cerebral ischemia (tGCI)-induced hippocampal CA1 injury and its underlying molecular mechanism. METHODS: A tGCI rat model was established using the four-vessel occlusion method for 15 min of ischemia...
November 7, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29090669/mir-132-down-regulates-methyl-cpg-binding-protein-2-mecp2-during-cognitive-dysfunction-following-chronic-cerebral-hypoperfusion
#6
Zhao-Hui Yao, Xiao-Li Yao, Yong Zhang, Shao-Feng Zhang, Jichang Hu
BACKGROUND: Chronic Cerebral Hypoperfusion (CCH) is an important vascular risk factor for vascular-related dementia cognitive impairment and there are no effective measures for the prevention and treatment of cognitive deficit by CCH and the underlying mechanisms are still poorly understood. Methyl cytidine-phosphate-guanosine (CpG) binding protein 2 (MeCP2), regulated by microRNA 132 (miR-132), is as a transcriptional repressor in high concentrations in the brain, regulates the expression of synaptic proteins and neuroplasticity, and may be involved in the cognitive deficit after CCH...
November 1, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29076429/salvianolate-blocks-apoptosis-during-myocardial-infarction-by-down-regulating-mir-122-5p
#7
Jingyang Lin, Xiaochun Zheng
BACKGROUND: Recent studies have provided evidence that microRNAs (miRNAs), as a potential biomarker, were involved in the regulation of gene expression in Myocardial Infarction (MI). This study was aim to highlight the role of salvianolate on cardiomyocyte apoptosis in MI. METHODS: Anterior descending branch of left coronary artery was ligated to set up MI model. miR-122-5p mimic was transfected into cardiomyocytes and verified by quantitative real-time PCR (qRT-PCR)...
October 26, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29046152/cerebral-small-vessel-disease-is-associated-with-genetic-variations-in-cyp2j
#8
Ming Yao, Daping Lv, Jiajia Huo, Zhongwu Sun
BACKGROUND: Cerebral small vessel disease (SVD) can cause cognitive impairment, disability, and dementia. While it's still unclear about the pathogenesis of SVD, several risk factors of SVD have been identified, and studies suggested that hypertension may play a critical role in SVD. Furthermore, studies have demonstrated that CYP2J2 isoform, 50 G>T variant, is associated with increase the risk of ischemic stroke. Thus, we hypothesized that CYP2J2 50 G>T variant is associated with increased risk of cerebral SVD...
October 17, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28990533/blood-brain-barrier-disruption-leads-to-postoperative-cognitive-dysfunction
#9
Bin Wang, Siyuan Li, Xipeng Cao, Xinghui Dou, Jingzhu Li, Ling Wang, Mingshan Wang, Yanlin Bi
BACKGROUND: Postoperative cognitive dysfunction (POCD) has received considerable attention as one of the main postoperative complications. The underlying mechanism of POCD in elderly subjects has not been fully elucidated to date. The central nervous system (CNS) is isolated from the bloodstream by the blood brain barrier (BBB) that consists of endothelial cells, capillary blood vessels and the tight junctions. The tight junctions carry out significant biological functions that are associated with the CNS and the blood circulation...
October 9, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28982333/cerebral-artery-vasoconstriction-is-endothelin-1-dependent-requiring-neurogenic-and-adrenergic-crosstalk
#10
Roel H L Haeren, Sieuwke A Hartmans, Jo De Mey, Govert Hoogland, Jim Dings, Olaf E M G Schijns, Sander M J van Kuijk, Kim Rijkers, Paul Schiffers, Koo J van Overbeeke
BACKGROUND: The regulation of cerebral arterial vasomotor tone involves several mechanisms. The role of sympathetic nerves and the adrenergic neurotransmitter, noradrenaline (NA), has been subject of debate for decades. Moreover, the specific role of endothelin-1 (ET-1) in cerebral arterial vasoconstriction has not been elucidated to date. In this study, we evaluated the contribution of NA and ET-1 to cerebral artery vasoconstriction. METHODS: Arterial responses of rat middle cerebral arteries, and human pial cerebral arteries to cumulative concentrations of NA and ET-1, and to electrical field stimulation (EFS), were evaluated...
October 5, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28982332/asymmetric-cerebrovascular-collateral-supply-affects-cognition-in-patients-with-unilateral-carotid-artery-stenosis
#11
Kuo-Lun Huang, Ting-Yu Chang, Chien-Hung Chang, Ho-Ling Liu, Yeu-Jhy Chang, Chi-Hung Liu, Ho-Fai Wong, Yi-Ming Wu, Tsong-Hai Lee, Meng-Yang Ho
BACKGROUND: The time to maximum of the residue function (TMax) has been employed to identify the penumbra in acute ischemic stroke. Cognitive impairment in patients with carotid artery stenosis (CAS) has been attributed to chronic cerebral hypoperfusion. The study aimed to examine whether cognitive impairment can be detected based on a preliminary TMax cutoff in patients with unilateral CAS. METHODS: Fifty unilateral CAS patients underwent dynamic susceptibility contrast MR perfusion...
October 5, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28982331/plasma-exosomal-mir-422a-and-mir-125b-2-3p-serve-as-biomarkers-for-ischemic-stroke
#12
Dong-Bin Li, Jing-Li Liu, Wei Wang, Ru-Ying Li, Dong-Ju Yu, Xiao-Yan Lan, Jin-Pin Li
BACKGROUND: MircroRNA (MiRNA) levels are associated with disease pathophysiology and are high in plasma exosomes. Plasma exosomal miRNAs serve as potential therapeutic targets and diagnosis biomarkers in some diseases but few studies have examined them in ischemic stroke (IS). Therefore, we explored the potential predictive value of plasma exosomal miR-422a and miR-125b-2-3p in different IS phases (acute and subacute phases). METHODS: Fifty-five IS patients and 25 age and sex matched healthy controls were recruited...
October 5, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28982330/potential-biomarkers-with-plasma-cortisol-brain-derived-neurotrophic-factor-and-nitrites-in-patients-with-acute-ischemic-stroke
#13
S Casas, A F Perez, M Mattiazzi, J Lopez, A Folgueira, G M Gargiulo-Monachelli, M C Gonzalez Deniselle, A F De Nicola
BACKGROUND: Acute ischemic stroke (AIS) represents an economic challenge for health systems all over the globe. Changes of neuroactive steroids have been found in different neurological diseases. We have previously demonstrated that old patients with AIS show changes of plasma cortisol and estradiol concentrations, in that increased steroid levels are associated with a deterioration of neurological status and a worse cognitive decline. OBJECTIVE: The present study assessed in patients with AIS if changes of behavior, brain-derived neurotrophic factor (BDNF) and nitrites (NO-2) bear a relationship with the degree of hypercortisolism...
October 5, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28982329/high-resolution-m-mode-evaluation-of-jugular-vein-valves-in-patients-with-neurological-and-neurosensory-disorders
#14
E Menegatti, M Tessari, M E Vannini, S Gianesini, A M Malagoni, A Ciorba, M Mazzoli, F Sisini, F Salvi, S Pelucchi, P Zamboni
BACKGROUND: High prevalence of valve absence was found in the internal jugular vein (IJV) of healthy volunteers by means of M-mode high-resolution echo colour Doppler (ECD). However, the prevalence of valve in neurovascular disorders linked to chronic cerebrospinal venous insufficiency (CCSVI) is still unknown. METHODS: A cohort of 83 healthy controls (HC), 71 multiple sclerosis (MS), 99 Inner Ear Disorders (IED) underwent ECD investigation of the IJV valve, including M-mode evaluation and related haemodynamics...
October 5, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28738775/autophagy-to-the-rescue
#15
Kenneth Maiese
No abstract text is available yet for this article.
July 24, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28412909/prolonged-perfusion-predicts-recurrent-ischemic-stroke-but-not-transient-ischemic-attack-in-patients-with-symptomatic-intracranial-stenosis
#16
Linfang Lan, Xinyi Leng, Vincent Ip, Thomas Leung, Yannie Soo, Jill Abrigo, Ka Sing Wong
BACKGROUND: Intracranial arterial stenosis (ICAS) is the dominant cause for ischemic stroke worldwide, with hemodynamic compromise as a crucial contributor. Prolonged perfusion is commonly observed in ICAS patients on CT perfusion (CTP) maps, while the clinical significance of this perfusion pattern has not been elucidated. METHODS: Patients having symptomatic ICAS of 50-99% stenosis with sustained downstream cerebral blood flow (CBF) were enrolled into this study...
April 13, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28393703/mir-106a-is-associated-with-diabetic-peripheral-neuropathy-through-the-regulation-of-12-15-lox-mediated-oxidative-nitrative-stress
#17
Yuanbo Wu, Dandan Xu, Xiang Zhu, Guangwei Yang, Mingshan Ren
BACKGROUND: Diabetic peripheral neuropathy (DPN) is a common complication of diabetes that with a complex pathogenesis. Study has reported that oxidative stress and nitrative stress were all involved in the DPN, however, the mechanism between them was still unclear. In the present study, we investigated whether miR-106a signaling regulated 12/15-Lipoxygenase (12/15-LOX) on oxidative/nitrative stress in DPN. METHODS: Dorsal root ganglion (DRG) was isolated from 10 healthy mice and 10 DPN mice...
April 4, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28393702/trem2-and-the-progression-of-alzheimer-s-disease
#18
Li Gao, Teng Jiang, Xiaoying Yao, Ling Yu, Xiaolan Yang, Yansheng Li
Alzheimer's disease (AD) is the most common form of dementia, which has been currently considered as a genetically complex disorder caused by a combination of environmental and genetic risk factors. Previous studies have reported that triggering receptor expressed on myeloid cells 2 (TREM2) gene represents a promising candidate gene for AD susceptibility and progression. Interestingly, recent findings further suggested that the association between TREM2 variants and AD risk was quite diverse among different ethnicities and populations...
April 4, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28356003/young-stroke-patients-treated-with-intravenous-thrombolysis-have-a-more-favorable-outcome-and-mortality-compared-with-older-patients
#19
Jijun Shi, Yongjun Cao, Shoujiang You, Zhichao Huang, Xia Zhang, Huihui Liu, Chun-Feng Liu
BACKGROUND: Previous clinical studies suggest that intravenous thrombolysis (IVT) with recombinant tissue plasminogen activator benefits stroke patients, but the efficacy of IVT in young stroke patients is not well-studied in China. OBJECTIVE: We compared the safety and efficacy of IVT with recombinant tissue plasminogen activator between Chinese young stroke patients (18-50 years old) and older patients (51-80 years old). METHODS: We analyzed data from the Soochow Stroke Registry for 373 stroke patients (18-50 years, n=74 vs...
March 27, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28356002/prognostic-parameters-for-symptomatic-intracranial-hemorrhage-after-intravenous-thrombolysis-in-acute-ischemic-stroke-in-an-asian-population
#20
Thanin Lokeskrawee, Sombat Muengtaweepongsa, Jayanton Patumanond, Somsak Tiamkao, Thanoot Thamangraksat, Phanyarat Phankhian, Polchai Pleumpanupatand, Paworamon Sribussara, Teeraparp Kitjavijit, Anake Supap, Weerawan Rattanaphibool, Jariya Prisiri
Symptomatic intracranial hemorrhage (sICH) is a major complication after intravenous thrombolysis leading to severe disability and death. The incidence was higher in Asian than in westernized countries. Prognostic factors across ethnicities are presumably different. Studies in Asian populations are limited. Clinical data from January 2008 to September 2016 in one provincial and four regional hospitals in the northern part of Thailand were retrospectively reviewed. Patients were those with acute ischemic stroke, to whom recombinant tissue plasminogen activator (rt-PA) had been prescribed...
March 27, 2017: Current Neurovascular Research
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