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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

Cancer and Cerebrovascular Disease
AbstractPurpose of ReviewTo review the latest information about the interactions between cancer and cerebrovascular disease.Recent FindingsAdditional data support the finding that both ischemic and hemorrhagic stroke are important complications of cancer or its treatment. Reperfusion therapy is being given successfully to patients with stroke complicating cancer.SummaryHemorrhagic stroke may occur with metastatic disease to the brain, coagulopathies from cancer, in particular leukemia, or as complications of chemotherapy. Ischemic stroke also may be a complication of metastatic disease with local invasion of vessels, a pro...
Source: Current Neurology and Neuroscience Reports - August 22, 2019 Category: Neuroscience Source Type: research

Inhibition of activator protein 1 attenuates neuroinflammation and brain injury after experimental intracerebral hemorrhage.
CONCLUSIONS: Inhibition of AP-1 curbs neuroinflammation and reduces brain injury following ICH. PMID: 31392841 [PubMed - as supplied by publisher]
Source: CNS Neuroscience and Therapeutics - August 7, 2019 Category: Neuroscience Authors: Wei CJ, Li YL, Zhu ZL, Jia DM, Fan ML, Li T, Wang XJ, Li ZG, Ma HS Tags: CNS Neurosci Ther Source Type: research

High prevalence of small vessel disease long after cranial irradiation
In conclusion, small vessel disease is not a rare complication after cranial irradiation, even in young patients. Patients after cranial irradiation should be followed up with MR imaging including a hemosiderin-sensitive sequence.
Source: Journal of Clinical Neuroscience - October 27, 2017 Category: Neuroscience Source Type: research

Tumor necrosis factor receptor ‐associated factor 6 participates in early brain injury after subarachnoid hemorrhage in rats through inhibiting autophagy and promoting oxidative stress
This study was designed to explore changes of expression level and potential roles and mechanisms of TRAF6 in early brain injury (EBI) after SAH using a Sprague–Dawley rat model of SAH induced in 0.3 mL non‐heparinized autologous arterial blood injected into the pre‐chiasmatic cistern. First, compared with the sham group, we found that the expression levels of TRAF6 increased gradually and peaked at 24 h after SAH. Second, the results showed that application of TRAF6 over‐expression plasmid and genetic silencing siRNA could increase or decrease expression of TRAF6, respectively, and severely exacerbate or relieve...
Source: Journal of Neurochemistry - June 20, 2017 Category: Neuroscience Authors: Yang Dou, Haitao Shen, Dongxia Feng, Haiying Li, Xiaodi Tian, Jian Zhang, Zhong Wang, Gang Chen Tags: Original Article Source Type: research

The pathophysiological role of astrocytic endothelin-1
Publication date: Available online 28 April 2016 Source:Progress in Neurobiology Author(s): Stéphanie Hostenbach, Miguel D’haeseleer, Ron Kooijman, Jacques De Keyser In the normal central nervous system, endothelin-1 (ET-1) is found in some types of neurons, epithelial cells of the choroid plexus, and endothelial cells of microvessels, but it is usually not detectable in glial cells. However, in different pathological conditions, astrocytes adapting a reactive phenotype express high levels of ET-1 and its receptors, mainly the ETB receptor. ET-1 released by reactive astrocytes appears mainly to have neurodeleterio...
Source: Progress in Neurobiology - April 28, 2016 Category: Neuroscience Source Type: research

The Mitogen-Activated Protein Kinase (MAPK) Signaling Pathway as a Discovery Target in Stroke
Abstract Protein kinases are critical modulators of a variety of intracellular and extracellular signal transduction pathways, and abnormal phosphorylation events can contribute to disease progression in a variety of diseases. As a result, protein kinases have emerged as important new drug targets for small molecule therapeutics. The mitogen-activated protein kinase (MAPK) signaling pathway transmits signals from the cell membrane to the nucleus in response to a variety of different stimuli. Because this pathway controls a broad spectrum of cellular processes, including growth, inflammation, and stress responses, ...
Source: Journal of Molecular Neuroscience - February 3, 2016 Category: Neuroscience Source Type: research

Metastatic chromophobe renal cell carcinoma to the brain
This report documents an unusual case of a patient with a chromophobe renal cell carcinoma presenting with a brain metastasis. A 58-year-old man presented with stroke-like symptomatology, including expressive aphasia, right side facial weakness, headaches and vomiting. CT imaging demonstrated a 4.7cm left frontal lobe hemorrhagic mass. He underwent surgery with excision of the mass, which was marked by sheets of large cells with lightly eosinophilic to clear cytoplasm. PAX8 staining was positive and a diagnosis of clear cell carcinoma of probably renal origin was rendered. Subsequently, CT imaging of the abdomen revealed a...
Source: Journal of Clinical Neuroscience - November 17, 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

In-hospital outcomes of thrombolysis for acute ischemic stroke in patients with primary brain tumors
Publication date: March 2015 Source:Journal of Clinical Neuroscience, Volume 22, Issue 3 Author(s): Santosh B. Murthy , Yogesh Moradiya , Shreyansh Shah , Aditi Shastri , Eric M. Bershad , Jose I. Suarez Data on thrombolysis outcomes in patients with primary brain tumors are limited. Our aim was to study stroke outcomes following thrombolysis in these patients in a population-based study. Patients with acute ischemic stroke who received thrombolysis were identified from the 2002–2011 USA Nationwide Inpatient Sample. We compared demographics, comorbidities, and outcomes between primary brain tumor-associated strokes (BT...
Source: Journal of Clinical Neuroscience - February 16, 2015 Category: Neuroscience Source Type: research

Genetic deletion of calcium/calmodulin-dependent protein kinase kinase ß (CaMKK ß) or CaMK IV exacerbates stroke outcomes in ovariectomized (OVXed) female mice
Conclusions: Inhibition of CaMKK signaling exacerbated stroke outcome and increased BBB impairment, transcriptional inactivation and inflammatory responses in females after stroke. Therefore, CaMKK signaling may be a potential target for stroke treatment in both males and females.
Source: BMC Neuroscience - October 21, 2014 Category: Neuroscience Authors: Lin LiuLouise McCulloughJun Li Source Type: research

Candesartan Reduces the Hemorrhage Associated with Delayed Tissue Plasminogen Activator Treatment in Rat Embolic Stroke.
Abstract We have previously reported that angiotensin receptor blockade reduces reperfusion hemorrhage in a suture occlusion model of stroke, despite increasing matrix metalloproteinase (MMP-9) activity. We hypothesized that candesartan will also decrease hemorrhage associated with delayed (6 h) tissue plasminogen activator (tPA) administration after embolic stroke, widening the therapeutic time window of tPA. Adult male Wistar rats were subjected to embolic middle cerebral artery occlusion (eMCAO) and treated with either candesartan (1 mg/kg) alone early at 3 h, delayed tPA (10 mg/kg) alone at 6 h, the combi...
Source: Neurochemical Research - November 6, 2013 Category: Neuroscience Authors: Ishrat T, Pillai B, Ergul A, Hafez S, Fagan SC Tags: Neurochem Res Source Type: research