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Total 97 results found since Jan 2013.

Non-coding RNAs in the regulation of blood –brain barrier functions in central nervous system disorders
AbstractThe blood –brain barrier (BBB) is an essential component of the neurovascular unit that controls the exchanges of various biological substances between the blood and the brain. BBB damage is a common feature of different central nervous systems (CNS) disorders and plays a vital role in the pathogenesis of t he diseases. Non-coding RNAs (ncRNAs), such as microRNAs (miRNAs), long non-coding RNA (lncRNAs), and circular RNAs (circRNAs), are important regulatory RNA molecules that are involved in almost all cellular processes in normal development and various diseases, including CNS diseases. Cumulative evi dences hav...
Source: Fluids and Barriers of the CNS - March 26, 2022 Category: Neuroscience Source Type: research

The Involvement of Programmed Cell Death 5 (PDCD5) in the Regulation of Apoptosis in Cerebral Ischemia/Reperfusion Injury.
CONCLUSIONS: PDCD5-induced apoptosis and over-expression of PDCD5 are harmful to the ischemic neurons in vivo. Meanwhile, the inhibition of PDCD5 may be protective via reducing the apoptotic-related protein such as p53, Bax, and caspase-3. This observation may have potential for the treatment of ischemic cerebral stroke. PMID: 23638963 [PubMed - as supplied by publisher]
Source: CNS Neuroscience and Therapeutics - May 3, 2013 Category: Neuroscience Authors: Chen CH, Jiang Z, Yan JH, Yang L, Wang K, Chen YY, Han JY, Zhang JH, Zhou CM Tags: CNS Neurosci Ther Source Type: research

Impact of Carotid Atherosclerosis Combined with Hypercholesterolemia on Cerebral Microvessels and Brain Parenchyma in a New Complex Rat Model.
The objective of this study was to develop a new model of hypercholesterolemia plus carotid injury and to investigate the impact of carotid atherosclerosis combined with hypercholesterolemia in the rat brain. The complex rat model was developed by carotid injury induced by an air-drying endothelial denudation method after high cholesterol diet for 2 weeks. Plasma cholesterol, carotid pathomorphology, oxidative stress and inflammation in cerebral microvessels and brain parenchyma were measured at 7, 14 and 28 days after carotid surgery. The results showed that plasma concentrations of total cholesterol and low density lip...
Source: Neurochemical Research - January 29, 2014 Category: Neuroscience Authors: Zhang L, Ya B, Yang P, Sun F, Zhang L, Li Y, Li L Tags: Neurochem Res Source Type: research

Mulberroside a protects against ischemic impairment in primary culture of rat cortical neurons after oxygen–glucose deprivation followed by reperfusion
Mulberroside A is a natural polyhydroxylated stilbene compound present at relatively high abundance in the roots and twigs of Morus alba L. It is known for its nephroprotective, hypoglycemic, and antidiabetic effects. Because its metabolite, oxyresveratrol, possessed purported anti‐inflammatory and neuroprotective effects, we proposed that mulberroside A may elicit neuroprotective effects that can be used in the treatment of brain ischemic injury. Therefore, we decided to investigate the pharmacological properties of mulberroside A in primary culture of rat cortical neurons after oxygen–glucose deprivation followed by ...
Source: Journal of Neuroscience Research - March 31, 2014 Category: Neuroscience Authors: Cai‐Ping Wang, Lu‐Zhong Zhang, Gui‐Cai Li, Yun‐wei Shi, Jian‐Long Li, Xiao‐Chuan Zhang, Zhi‐Wei Wang, Fei Ding, Xin‐Miao Liang Tags: Research Article Source Type: research

Quantitative Longitudinal Evaluation of Diaschisis-Related Cerebellar Perfusion and Diffusion Parameters in Patients with Supratentorial Hemispheric High-Grade Gliomas After Surgery.
In this study, we investigated the longitudinal evolution of diaschisis-related cerebellar perfusion and diffusion tensor-imaging (DTI) changes in patients after surgery for supratentorial brain tumors. Eight patients (M:F 5:3, age 8-22 years) who received surgery for supratentorial high-grade gliomas were evaluated. Initial MRI studies were performed 19-54 days postoperatively, with follow-ups at 2- to 3-month intervals. For each study, parametric maps of the cerebellum were generated and coregistered to T1-weighted images that had been previously segmented for cGM and cWM. Aggregate mean values of CBV, cerebral blood f...
Source: Cerebellum - June 12, 2014 Category: Neuroscience Authors: Patay Z, Parra C, Hawk H, George A, Li Y, Scoggins M, Broniscer A, Ogg RJ Tags: Cerebellum Source Type: research

Pretreatment by Evodiamine is Neuroprotective in Cerebral Ischemia: Up-Regulated pAkt, pGSK3β, Down-Regulated NF-κB Expression, and Ameliorated BBB Permeability.
Abstract Inflammatory damage plays an important role in cerebral ischemic pathogenesis and may represent a target for treatment. Evodiamine (Evo) has been proved to elicit a variety of biological effects through its anti-inflammatory property in the treatment of infectious disease, Alzheimer's disease and hypoxia-induced inflammatory response. Whether this protective effect applies to cerebral ischemic injury, we therefore investigated the potential neuroprotective role of Evo and the underlying mechanisms. Male Institute of Cancer Research (ICR) mice were subjected to permanent middle cerebral artery occlusion (...
Source: Neurochemical Research - June 12, 2014 Category: Neuroscience Authors: Zhao T, Zhang X, Zhao Y, Zhang L, Bai X, Zhang J, Zhao X, Chen L, Wang L, Cui L Tags: Neurochem Res Source Type: research

Small-animal PET demonstrates brain metabolic change after using bevacizumab in a rat model of cerebral ischemic injury
Abstract To evaluate the effect of bevacizumab on cerebral ischemia, we used 2-deoxy-2-18F-fluoro-D-glucose (18F-FDG) small-animal positron emission tomography (PET) in the middle cerebral artery occlusion (MCAO) rat model. After baseline neurologic function tests and PET studies, MCAO Sprague-Dawley rats received bevacizumab or normal saline (controls). Weekly PET imaging and neurologic function tests showed that the 18F-FDG accumulation in the bevacizumab group was similar to that in the controls during the first 2 weeks, but lower than in controls at weeks 3 and 4. However, no difference was found in neurologi...
Source: Neuroscience Bulletin - October 1, 2014 Category: Neuroscience Source Type: research

Periodic Lateralized Epileptiform Discharges (PLEDs) in Patients With Neurosyphilis and HIV Infection.
Abstract Periodic lateralized epileptiform discharges (PLEDs) are an electroencephalographic pattern recorded in the setting of a variety of brain abnormalities. It is best recognized for its association with acute viral encephalitis, stroke, tumor, or latestatus epilepticus. However, there are other conditions that have been recognized as the underlying pathology for PLEDs such as alcohol withdrawal, Creutzfeldt-Jacob disease, anoxic brain injury, and hemiplegic migraine. However, there are only rare case reports of PLEDs in patients with neurosyphilis. Here, we report 2 patients presenting with encephalopathy an...
Source: Clinical EEG and Neuroscience - October 17, 2014 Category: Neuroscience Authors: Takagaki K, Morales MK, Vitantonio D, Berkowitz F, Bell WL, Kumar PN, Motamedi GK Tags: Clin EEG Neurosci Source Type: research

Regional quantification of cerebral venous oxygenation from MRI susceptibility during hypercapnia
Publication date: 1 January 2015 Source:NeuroImage, Volume 104 Author(s): Audrey P. Fan , Karleyton C. Evans , Jeffrey N. Stout , Bruce R. Rosen , Elfar Adalsteinsson There is an unmet medical need for noninvasive imaging of regional brain oxygenation to manage stroke, tumor, and neurodegenerative diseases. Oxygenation imaging from magnetic susceptibility in MRI is a promising new technique to measure local venous oxygen extraction fraction (OEF) along the cerebral venous vasculature. However, this approach has not been tested in vivo at different levels of oxygenation. The primary goal of this study was to test whether ...
Source: NeuroImage - November 4, 2014 Category: Neuroscience Source Type: research

Peroxisome Proliferator-activated Receptor-γ Agonist Pioglitazone Ameliorates White Matter Lesion and Cognitive Impairment in Hypertensive Rats.
CONCLUSIONS: Long-term treatment of pioglitazone has beneficial effect on hypertension-induced WML and cognition decline, which may partly through its effect on attenuation of arteriolar remodeling, endothelial activation, and brain inflammation. PMID: 25611692 [PubMed - as supplied by publisher]
Source: CNS Neuroscience and Therapeutics - January 22, 2015 Category: Neuroscience Authors: Lan LF, Zheng L, Yang X, Ji XT, Fan YH, Zeng JS Tags: CNS Neurosci Ther Source Type: research

DDR1 may play a key role in destruction of the blood–brain barrier after cerebral ischemia–reperfusion
Publication date: Available online 25 January 2015 Source:Neuroscience Research Author(s): Mingxia Zhu , Dong Xing , Zhihong Lu , Yanhong Fan , Wugang Hou , Hailong Dong , Lize Xiong , Hui Dong Discoidin domain receptor 1 (DDR1) has been shown to mediate matrix metalloproteinase-9 (MMP-9) secretions and degrade all extracellular matrix compounds in mammalian tumor cells. We hypothesized that DDR1 expression will be elevated and the blood–brain barrier (BBB) will be damaged after focal cerebral ischemia in rats. Inhibiting DDR1 expression can alleviate BBB disruption and cerebral ischemic damage via down-regulation of M...
Source: Neuroscience Research - January 30, 2015 Category: Neuroscience Source Type: research

HAMI 3379, a CysLT2R antagonist, dose- and time-dependently attenuates brain injury and inhibits microglial inflammation after focal cerebral ischemia in rats
Publication date: 16 April 2015 Source:Neuroscience, Volume 291 Author(s): Q.J. Shi , H. Wang , Z.X. Liu , S.H. Fang , X.M. Song , Y.B. Lu , W.P. Zhang , X.Y. Sa , H.Z. Ying , E.Q. Wei Cysteinyl leukotrienes (CysLTs) induce inflammatory responses by activating their receptors, CysLT1R and CysLT2R. We have reported that CysLT2R is involved in neuronal injury, astrocytosis, and microgliosis, and that intracerebroventricular (i.c.v.) injection of the selective CysLT2R antagonist HAMI 3379 protects against acute brain injury after focal cerebral ischemia in rats. In the present study, we clarified features of the protective ...
Source: Neuroscience - February 26, 2015 Category: Neuroscience Source Type: research

Up-regulation of VCAM1 Relates to Neuronal Apoptosis After Intracerebral Hemorrhage in Adult Rats.
Abstract Vascular cell adhesion molecule 1 (VCAM1) is a member of the Immunoglobulin superfamily and encodes a cell surface sialoglycoprotein expressed in cytokine-activated endothelium. This type I membrane protein mediates leukocyte-endothelial cell adhesion, facilitates the downstream signaling, and may play a role in the development of artherosclerosis and rheumatoid arthritis. Accumulating evidence has demonstrated that VCAM1 exerts an anti-apoptotic effect in several tumor tissues such as ovarian cancer and breast cancer. Intracerebral hemorrhage (ICH) is the second most common subtype of stroke with high mo...
Source: Neurochemical Research - April 14, 2015 Category: Neuroscience Authors: Zhang D, Yuan D, Shen J, Yan Y, Gong C, Gu J, Xue H, Qian Y, Zhang W, He X, Yao L, Ji Y, Shen A Tags: Neurochem Res Source Type: research

Hyperlipidemia exacerbates cerebral injury through oxidative stress, inflammation and neuronal apoptosis in MCAO/reperfusion rats.
Abstract Recent studies showed that hyperglycemia enhanced brain damage when subjected to transient cerebral ischemic stroke. However, the etiologic link between them has been less known. In the present study, based on an experimental rat's model of hyperlipidemia combined with cerebral ischemia-reperfusion injury (I/R), we herein showed that hyperlipidemia induced by high-fat diet (HFD) resulted in considerable increase in serum triglycerides, cholesterol and low-density lipoprotein cholesterol, and remarkable decrease in serum high-density lipoprotein cholesterol, which associated with an exacerbation on neurolo...
Source: Experimental Brain Research - August 4, 2015 Category: Neuroscience Authors: Cao XL, Du J, Zhang Y, Yan JT, Hu XM Tags: Exp Brain Res Source Type: research

Modulation of BV-2 microglia functions by novel quercetin pivaloyl ester
Publication date: Available online 16 September 2015 Source:Neurochemistry International Author(s): Nataša Mrvová, Martin Škandík, Marcela Kuniaková, Lucia Račková Chronic inflammation in brain plays a critical role in major neurodegenerative diseases such as Alzheimer's, Parkinson’s disease, stroke or multiple sclerosis. Microglia, resident macrophages and intristinc components of CNS, appear to be main effectors in this pathological process. Quercetin, a naturally occurring flavonoid, was proven to downregulate inflammatory genes in microglia. Synthetically modified quercetin, 3´-O-(3-chloropivaloyl) quer...
Source: Neurochemistry International - September 18, 2015 Category: Neuroscience Source Type: research