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Cerebral vascular disease

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https://www.readbyqxmd.com/read/28811382/an-engineered-s1p-chaperone-attenuates-hypertension-and-ischemic-injury
#1
Steven L Swendeman, Yuquan Xiong, Anna Cantalupo, Hui Yuan, Nathalie Burg, Yu Hisano, Andreane Cartier, Catherine H Liu, Eric Engelbrecht, Victoria Blaho, Yi Zhang, Keisuke Yanagida, Sylvain Galvani, Hideru Obinata, Jane E Salmon, Teresa Sanchez, Annarita Di Lorenzo, Timothy Hla
Endothelial dysfunction, a hallmark of vascular disease, is restored by plasma high-density lipoprotein (HDL). However, a generalized increase in HDL abundance is not beneficial, suggesting that specific HDL species mediate protective effects. Apolipoprotein M-containing HDL (ApoM(+)HDL), which carries the bioactive lipid sphingosine 1-phosphate (S1P), promotes endothelial function by activating G protein-coupled S1P receptors. Moreover, HDL-bound S1P is limiting in several inflammatory, metabolic, and vascular diseases...
August 15, 2017: Science Signaling
https://www.readbyqxmd.com/read/28810566/correlation-analysis-between-the-ldl-c-in-serum-and-the-onset-of-transient-ischemic-attack-caused-by-csvd
#2
Yaqi Chen, Mei Hu, Hongying Gong
The aim of this study was to investigate the correlation between the low-density lipoprotein cholesterol (LDL-C) in serum and the onset of transient ischemic attack caused by cerebral small vascular disease (CSVD). Between September 2012 and September 2015, 249 patients who were diagnosed as CSVD were randomly enrolled in this study. According to MRI results, patients were divided into the patient and control groups. In the patient group, the patients were further subdivided into the white matter lesion (WML) group (n=86) and lacunar infarction (LI) group (n=53)...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810250/cerebral-small-vessel-disease-is-associated-with-dysregulation-in-the-ubiquitin-proteasome-system-and-other-major-cellular-pathways-in-specific-brain-regions
#3
Marie-Françoise Ritz, Caspar Grond-Ginsbach, Felix Fluri, Manja Kloss, Markus Tolnay, Nils Peters, Stefan Engelter, Philippe Lyrer
BACKGROUND/AIMS: Cerebral small vessel disease (SVD) is characterized by periventricular white matter (WM) changes and can lead to vascular dementia, the second most common form of age-dependent dementia. The pathogenesis of the disease remains poorly understood, and studies of its molecular basis are limited. By profiling gene expression of dissected postmortem brain tissue in SVD patients and comparisons with tissue of nonneurological controls, we aimed to identify genes and processes that are involved in the pathogenesis of SVD to gain new pathogenetic insights...
August 16, 2017: Neuro-degenerative Diseases
https://www.readbyqxmd.com/read/28805757/-the-influence-of-cytoflavin-therapy-on-the-cerebral-hemodynamics-in-patients-with-various-stages-of-hypertensive-disease
#4
L A Belova, V V Mashin, O Yu Kolotik-Kameneva, N V Belova, A Scuderi, P L Antignani
AIM: To study an influence of cytoflavin therapy on the cerebral hemodynamics in patients with various stages of hypertensive disease (HD). MATERIAL AND METHODS: One hundred and forty patients with HD, I-III stages, were randomized into 2 groups: patients of group 1 received complex treatment (antihypertensive therapy and cytoflavin), patients of group 2 were treated with antihypertensive therapy. The control group consisted of 30 healthy people. The changes in cerebral hemodynamics using the algorithm of the complex ultrasound study of cerebral vascular system were assessed...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28803422/salidroside-improved-cerebrovascular-vasodilation-in-streptozotocin-induced-diabetic-rats-through-restoring-the-function-of-bkca-channel-in-smooth-muscle-cells
#5
Yu-Guang Ma, Jun-Wei Wang, Yin-Bin Zhang, Bao-Feng Wang, Zhi-Jun Dai, Man-Jiang Xie, Hua-Feng Kang
Vessel disease is a kind of severe complication in diabetic patients. However, few pharmacologic agents can directly recover diabetic vascular function. Salidroside (SAL), a major ingredient from Rhodiola rosea, has been found to have an obvious hypoglycemic effect and a beneficial protection on vascular function in diabetes. However, whether SAL is a suitable treatment for diabetes has not so far been evaluated and the underlying mechanisms remain unknown. The present work aims to (1) investigate the potential effects of SAL on cerebrovascular relaxation in streptozotocin-induced diabetic rats or when exposed to acute hyperglycemia condition and (2) examine whether function of the BKCa channel is involved in SAL treatment for diabetic vascular relaxation...
August 12, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28801954/an-analysis-of-inpatient-pediatric-sickle-cell-disease-incidence-costs-and-outcomes
#6
Laura M Bou-Maroun, Fabien Meta, Curtis J Hanba, Andrew D Campbell, Gregory A Yanik
OBJECTIVE: To identify characteristics of pediatric sickle cell disease (SCD) hospitalizations and to examine admission demographics and medical expenditures. METHODS: Admissions with SCD were identified from the 2009 and 2012 releases of the Healthcare and Cost Utilization Project's Kids Inpatient Database. Disease-specific secondary diagnoses including acute chest syndrome (ACS), vaso-occlusive pain crisis (VOC), splenic sequestration, and stroke/transient ischemic attack were analyzed for patient and hospital demographics...
August 12, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28799316/mirror-aneurysm-with-right-frontal-ich-in-a-patient-with-osteogenesis-imperfecta
#7
Vijay Sardana, Sumit Kamble, Sunil K Sharma, Dilip Maheshwari, Bharat Bhushan
Osteogenesis imperfecta (OI) is a heterogeneous group of inherited disorders that occur owing to the abnormalities in type 1 collagen, and is characterized by increased bone fragility and other extraskeletal manifestations. OI may be associated with vascular complications such as aortic and cervical artery dissection, carotid cavernous fistula, and coronary artery aneurysms but unlike other connective tissue diseases, the cerebrovascular system is less frequently involved. We report rare case of 50 year female patient who was diagnosed with OI following right frontal haemorrhage secondary to a ruptured middle cerebral artery mirror aneurysm...
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28793390/interventions-for-maintaining-nasogastric-feeding-after-stroke-an-integrative-review-of-effectiveness-and-acceptability
#8
REVIEW
Catherine Mahoney, Linda Veitch
AIMS AND OBJECTIVES: To investigate the effectiveness and acceptability of interventions for maintaining nasogastric tubes (NGT) in adult stroke patients. BACKGROUND: Internationally, incidence of Cerebral Vascular Disease (CVD) continues to increase and stroke is the largest cause of complex disability in adults. Dysphagia is common following a stroke which necessitates feeding via a NGT. NGT are not well tolerated by stroke patients and may be frequently dislodged...
August 9, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28792455/cardio-metabolic-benefits-of-plant-based-diets
#9
REVIEW
Hana Kahleova, Susan Levin, Neal Barnard
Cardio-metabolic disease, namely ischemic heart disease, stroke, obesity, and type 2 diabetes, represent substantial health and economic burdens. Almost one half of cardio-metabolic deaths in the U.S. might be prevented through proper nutrition. Plant-based (vegetarian and vegan) diets are an effective strategy for improving nutrient intake. At the same time, they are associated with decreased all-cause mortality and decreased risk of obesity, type 2 diabetes, and coronary heart disease. Evidence suggests that plant-based diets may reduce the risk of coronary heart disease events by an estimated 40% and the risk of cerebral vascular disease events by 29%...
August 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28783886/cerebrospinal-vascular-diseases-misdiagnosed-as-decompression-illness-the-importance-of-considering-other-neurological-diagnoses
#10
Kiyotaka Kohshi, Yoshitaka Morimatsu, Hideki Tamaki, Yukio Murata, Katsuko Kohshi, Tatsuya Ishitake, Petar J Denoble
The diagnosis of decompression illness (DCI), which is based on a history of decompression and clinical findings, can sometimes be confounded with other vascular events of the central nervous system. The authors report three cases of divers who were urgently transported to a hyperbaric facility for hyperbaric oxygen treatment of DCI which at admission turned out to be something else. The first case, a 45-year-old experienced diver with unconsciousness, was clinically diagnosed as having experienced subarachnoid hemorrhage, which was confirmed by CT scan...
July 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28783763/mapping-altered-brain-connectivity-and-its-clinical-associations-in-adult-moyamoya-disease-a-resting-state-functional-mri-study
#11
Ken Kazumata, Khin Khin Tha, Haruto Uchino, Masaki Ito, Naoki Nakayama, Takeo Abumiya
Detection of subtle ischemic injuries in moyamoya disease may enable optimization of timing of revascularization surgery, and could potentially improve functional outcomes. Resting-state functional magnetic resonance imaging (rs-fMRI) is widely used to study functional organization of the brain, but it remains unclear whether rs-fMRI could elucidate distinct characteristics in moyamoya disease. Here, we aimed to determine changes in a conventional rs-fMRI measure and analyze any associations with clinical symptoms and cerebral hemodynamics...
2017: PloS One
https://www.readbyqxmd.com/read/28782872/the-role-of-vascular-resistance-in-bold-responses-to-progressive-hypercapnia
#12
James Duffin, Olivia Sobczyk, Adrian Crawley, Julien Poublanc, Lashmi Venkatraghavan, Kevin Sam, Alan Mutch, David Mikulis, Joseph Fisher
The ability of the cerebral vasculature to regulate vascular diameter, hence resistance and cerebral blood flow (CBF), in response to metabolic demands (neurovascular coupling), and perfusion pressure changes (autoregulation) may be assessed by measuring the CBF response to carbon dioxide (CO2 ). In healthy individuals, the CBF response to a ramp CO2 stimulus from hypocapnia to hypercapnia is assumed sigmoidal or linear. However, other response patterns commonly occur, especially in individuals with cerebrovascular disease, and these remain unexplained...
August 7, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28782182/heterozygous-mutations-of-htra1-gene-in-patients-with-familial-cerebral-small-vessel-disease
#13
Ilaria Di Donato, Silvia Bianchi, Gian Nicola Gallus, Alfonso Cerase, Ilaria Taglia, Francesca Pescini, Serena Nannucci, Carla Battisti, Domenico Inzitari, Leonardo Pantoni, Andrea Zini, Antonio Federico, Maria Teresa Dotti
AIMS: Cerebral small vessel disease (SVD) is the leading cause of vascular dementia. Although the most of cases are sporadic, familial monogenic causes have been identified in a growing minority of patients. CADASIL, due to mutations of NOTCH3 gene, is the most common genetic SVD, and CARASIL, linked to HTRA1 gene mutations, is a rare but well known autosomal recessive SVD. Recently, also heterozygous HTRA1 mutations have been described in patients with familial SVD. To detect a genetic cause of familial SVD, we performed mutational analysis of HTRA1 gene in a large cohort of Italian NOTCH3-negative patients...
August 6, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28776803/is-obesity-mechanistically-linked-to-the-greater-risk-of-cerebral-vascular-disease
#14
Lauro C Vianna
The alarming prevalence of obesity is a serious global health issue affecting both adults and children that is projected to increase in the following decades. This article is protected by copyright. All rights reserved.
August 4, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28776278/expression-of-thyroid-stimulating-hormone-receptors-and-thyroglobulin-in-limbic-regions-in-the-adult-human-brain
#15
Meleshni Naicker, Strinivasen Naidoo
Expression of the human thyroid-specific proteins, thyroid-stimulating hormone receptor (TSH-R) and thyroglobulin (TG) in non-thyroid tissue is well-documented. TSH-R has been identified in the heart, kidney, bone, pituitary, adipose tissue, skin and astrocyte cultures. TG has been identified in the skin, thymus and kidney. However, none of those previous studies had identified TSH-R or TG in specific human brain regions. Previously, a pilot study conducted by our group on normal adult human brain demonstrated TSH-R and TG in cortical neurons and cerebral vasculature, respectively, within various brain areas...
August 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28775055/in-vivo-imaging-of-venous-side-cerebral-small-vessel-disease-in-older-adults-an-mri-method-at-7t
#16
C E Shaaban, H J Aizenstein, D R Jorgensen, R L MacCloud, N A Meckes, K I Erickson, N W Glynn, J Mettenburg, J Guralnik, A B Newman, T S Ibrahim, P J Laurienti, A N Vallejo, C Rosano
BACKGROUND AND PURPOSE: Traditional neuroimaging markers of small-vessel disease focus on late-stage changes. We aimed to adapt a method of venular assessment at 7T for use in older adults. We hypothesized that poorer venular morphologic characteristics would be related to other small-vessel disease neuroimaging markers and a higher prevalence of small-vessel disease-Alzheimer disease risk factors. MATERIALS AND METHODS: Venules were identified in periventricular ROIs on SWI and defined as tortuous or straight...
August 3, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28774437/new-approach-to-detect-and-classify-stroke-in-skull-ct-images-via-analysis-of-brain-tissue-densities
#17
Pedro P Rebouças Filho, Róger Moura Sarmento, Gabriel Bandeira Holanda, Daniel de Alencar Lima
BACKGROUND AND OBJECTIVE: Cerebral vascular accident (CVA), also known as stroke, is an important health problem worldwide and it affects 16 million people worldwide every year. About 30% of those that have a stroke die and 40% remain with serious physical limitations. However, recovery in the damaged region is possible if treatment is performed immediately. In the case of a stroke, Computed Tomography (CT) is the most appropriate technique to confirm the occurrence and to investigate its extent and severity...
September 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28769872/intracranial-arterial-dolichoectasia
#18
REVIEW
Victor J Del Brutto, Jorge G Ortiz, José Biller
An increased diameter (ectasis) and/or long and tortuous course (dolichosis) of at least one cerebral artery define intracranial arterial dolichoectasia (IADE). IADE could be detected incidentally or may give rise to an array of neurological complications including ischemic stroke, intracranial hemorrhage, or compression of surrounding neural structures. The basilar artery is preferentially affected and has been studied in more detail, mainly due to the presence of accepted diagnostic criteria proposed by Smoker and colleagues in 1986 (1)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28766254/vegf-mediated-cognitive-and-synaptic-improvement-in-chronic-cerebral-hypoperfusion-rats-involves-autophagy-process
#19
Ling Wang, Jingyu Wang, Faqi Wang, Chunhua Liu, Xuening Yang, Jiajia Yang, Dong Ming
Chronic cerebral hypoperfusion (CCH) is associated with various neurodegenerative diseases characterized by cognitive impairment. Dozens of studies including ours have indicated that exogenous administration of vascular endothelial growth factor (VEGF) could exert effective cognitive protection during ischemia. Nevertheless, the underlying mechanism has not been well clarified. To address this issue, we explored the synaptic mechanisms in vivo since hippocampal synaptic function is essential to the learning and memory process...
August 1, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28757574/finding-a-balance-between-protection-and-pathology-the-dual-role-of-perforin-in-human-disease
#20
REVIEW
Robin C Willenbring, Aaron J Johnson
Perforin is critical for controlling viral infection and tumor surveillance. Clinically, mutations in perforin are viewed as unfavorable, as lack of this pore-forming protein results in lethal, childhood disease, familial hemophagocytic lymphohistiocytosis type 2 (FHL 2). However, many mutations in the coding region of PRF1 are not yet associated with disease. Animal models of viral-associated blood-brain barrier (BBB) disruption and experimental cerebral malaria (ECM) have identified perforin as critical for inducing pathologic central nervous system CNS vascular permeability...
July 25, 2017: International Journal of Molecular Sciences
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