keyword
MENU ▼
Read by QxMD icon Read
search

vascular cerebral

keyword
https://www.readbyqxmd.com/read/28453476/reduced-cerebral-blood-flow-in-mild-cognitive-impairment-assessed-using-phase-contrast-mri
#1
Reyes García de Eulate, Irene Goñi, Alvaro Galiano, Marta Vidorreta, Miriam Recio, Mario Riverol, José L Zubieta, María A Fernández-Seara
There is increasing evidence of a vascular contribution to Alzheimer's disease (AD). In some cases, prior work suggests that chronic brain hypoperfusion could play a prime pathogenic role contributing to the accumulation of amyloid-β,while other studies favor the hypothesis that vascular dysfunction and amyloid pathology are independent, although synergistic, mechanisms contributing to cognitive impairment. Vascular dysfunction can be evaluated by assessing cerebral blood flow impairment. Phase contrast velocity mapping by MRI offers a non-invasive means of quantifying the total inflow of blood to the brain...
April 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28448515/chronic-cocaine-induces-hif-vegf-pathway-activation-along-with-angiogenesis-in-the-brain
#2
Wei Yin, Kevin Clare, Qiujia Zhang, Nora D Volkow, Congwu Du
Cocaine induces vasoconstriction in cerebral vessels, which with repeated use can result in transient ischemic attacks and cerebral strokes. However, the neuroadaptations that follow cocaine's vasoconstricting effects are not well understood. Here, we investigated the effects of chronic cocaine exposure (2 and 4 weeks) on markers of vascular function and morphology in the rat brain. For this purpose we measured nitric oxide (NO) concentration in plasma, brain neuronal nitric oxide synthase (nNOS or NOS1), HIF-1α, and VEGF expression in different brain regions, i...
2017: PloS One
https://www.readbyqxmd.com/read/28446713/a-risk-prediction-model-for-post-stroke-depression-in-chinese-stroke-survivors-based-on-clinical-and-socio-psychological-features
#3
Rui Liu, Yingying Yue, Haitang Jiang, Jian Lu, Aiqin Wu, Deqin Geng, Jun Wang, Jianxin Lu, Shenghua Li, Hua Tang, Xuesong Lu, Kezhong Zhang, Tian Liu, Yonggui Yuan, Qiao Wang
BACKGROUND: Post-stroke depression (PSD) is a frequent complication that worsens rehabilitation outcomes and patient quality of life. This study developed a risk prediction model for PSD based on patient clinical and socio-psychology features for the early detection of high risk PSD patients. RESULTS: Risk predictors included a history of brain cerebral infarction (odds ratio [OR], 3.84; 95% confidence interval [CI], 2.22-6.70; P < 0.0001) and four socio-psychological factors including Eysenck Personality Questionnaire with Neuroticism/Stability (OR, 1...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28446647/relationship-between-carotid-arterial-properties-and-cerebral-white-matter-hyperintensities
#4
Tatjana Rundek, David Della-Morte, Hannah Gardener, Chuanhui Dong, Matthew S Markert, Jose Gutierrez, Eugene Roberts, Mitchell S V Elkind, Charles DeCarli, Ralph L Sacco, Clinton B Wright
OBJECTIVE: Since arterial stiffness is a functional measure of arterial compliance and may be an important marker of cerebrovascular disease, we examined the association of carotid artery stiffness with white matter hyperintensity volume (WMHV) in a cross-sectional study of 1,166 stroke-free participants. METHODS: Carotid beta stiffness index (STIFF) was assessed by M-mode ultrasound of the common carotid artery and calculated as the ratio of natural log of the difference between systolic and diastolic blood pressure over STRAIN, a ratio of the difference between carotid systolic and diastolic diameter (DD) divided by DD...
April 26, 2017: Neurology
https://www.readbyqxmd.com/read/28445524/live-imaging-of-primary-ocular-vasculature-formation-in-zebrafish
#5
Tetsuya Hashiura, Eiji Kimura, Shizuko Fujisawa, Sayuri Oikawa, Shigenori Nonaka, Daijiro Kurosaka, Jiro Hitomi
Ocular vasculature consists of the central retinal and ciliary vascular systems, which are essential to maintaining visual function. Many researchers have attempted to determine their origins and development; however, the detailed, stepwise process of ocular vasculature formation has not been established. In zebrafish, two angioblast clusters, the rostral and midbrain organizing centers, form almost all of the cranial vasculature, including the ocular vasculature, and these are from where the cerebral arterial and venous angioblast clusters, respectively, differentiate...
2017: PloS One
https://www.readbyqxmd.com/read/28445265/comparison-of-clinical-outcomes-after-drug-eluting-stent-implantation-in-diabetic-versus-nondiabetic-patients-in-china-a-retrospective-study
#6
Yong-Jin Jiang, Wei-Xing Han, Chao Gao, Jun Feng, Zheng-Fei Chen, Jing Zhang, Chun-Miao Luo, Jian-Yuan Pan
Diabetes mellitus (DM) has been proved to be a predictor of adverse outcomes after percutaneous coronary intervention (PCI). Drug-eluting stents (DESs) could reduce the adverse events in DM patients. In this study, we aimed to analyze the clinical outcome after DES implantation in diabetic versus nondiabetic patients in China. Totally, 200 Chinese DM patients and 400 Chinese non-DM patients were enrolled in this retrospective study. Compared with non-DM patients, DM patients were more likely to have a higher incidence of cardiac death (3...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28443810/-transient-monocular-vision-loss
#7
E J Volkers, R C J M Donders, A Algra, L J Kapelle
Transient monocular vision loss (TMVL) caused by temporary disturbance of blood flow to the retina is a harbinger of future vascular complications. The diagnosis may be difficult, not only because it is solely dependent on history taking, but also because the range of monocular visual symptoms a patient may experience is wide. The classic pattern of a sudden black or grey visual field, or a curtain that is drooping in front of one eye, easily fits in the diagnosis of TMVL; however, coloured vision or flashes should not always be considered as benign...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28442989/perinatal-brain-injury-as-a-consequence-of-preterm-birth-and-intrauterine-inflammation-designing-targeted-stem-cell-therapies
#8
REVIEW
Madison C B Paton, Courtney A McDonald, Beth J Allison, Michael C Fahey, Graham Jenkin, Suzanne L Miller
Chorioamnionitis is a major cause of preterm birth and brain injury. Bacterial invasion of the chorion and amnion, and/or the placenta, can lead to a fetal inflammatory response, which in turn has significant adverse consequences for the developing fetal brain. Accordingly, there is a strong causal link between chorioamnionitis, preterm brain injury and the pathogenesis of severe postnatal neurological deficits and cerebral palsy. Currently there are no treatments to protect or repair against brain injury in preterm infants born after pregnancy compromised by intrauterine infection...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28442357/dl-3-n-butylphthalide-promotes-neuroplasticity-and-motor-recovery-in-stroke-rats
#9
Yefei Sun, Xi Cheng, Huibin Wang, Xiaopeng Mu, Yifan Liang, YuJia Luo, Huiling Qu, Chuansheng Zhao
BACKGROUNDS AND AIMS: Racemic l-3-n-butylphthalide (dl-NBP), is able to achieve a functional recovery in animal models of cerebral ischemia, vascular dementia, and Alzheimer's disease. In this study, we investigated the effect of dl-NBP on axonal growth, neurogenesis and behavioral performances in rats with cerebral ischemia. METHODS: Focal cerebral ischemia in rats was produced by intracerebral injection of endothelin-1. Starting from postoperative day 7, the experimental rats were administered 70mg/kg dl-NBP by oral gavage for two weeks...
April 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28441970/salidroside-contributes-to-reducing-blood-pressure-and-alleviating-cerebrovascular-contractile-activity-in-diabetic-goto-kakizaki-rats-by-inhibition-of-l-type-calcium-channel-in-smooth-muscle-cells
#10
Yu-Guang Ma, Jun-Wei Wang, Yun-Gang Bai, Mei Liu, Man-Jiang Xie, Zhi-Jun Dai
BACKGROUND: Vascular disease is a common and often severe complication in diabetes mellitus. Hyperglycemia and hypertension are considered to be two of the leading risk factors for vascular complications in diabetic patients. However, few pharmacologic agents could provide a combinational therapy for controlling hyperglycemia and blood pressure in diabetic patients at the same time. Salidroside (SAL) is the major active ingredient derived from Rhodiola. Recently, it has been reported that SAL have an obvious hypoglycemic effect in diabetes and show a beneficial activity in diabetic vascular dysfunction...
April 26, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28441325/the-effects-of-taekwondo-training-on-peripheral-neuroplasticity-related-growth-factors-cerebral-blood-flow-velocity-and-cognitive-functions-in-healthy-children-a-randomized-controlled-trial
#11
Su-Youn Cho, Wi-Young So, Hee-Tae Roh
Although regular Taekwondo (TKD) training has been reported to be effective for improving cognitive function in children, the mechanism underlying this improvement remains unclear. The purpose of the present study was to observe changes in neuroplasticity-related growth factors in the blood, assess cerebral blood flow velocity, and verify the resulting changes in children's cognitive function after TKD training. Thirty healthy elementary school students were randomly assigned to control (n = 15) and TKD (n = 15) groups...
April 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28439241/nifedipine-inhibition-of-high-voltage-activated-calcium-channel-currents-in-cerebral-artery-myocytes-is-influenced-by-extracellular-divalent-cations
#12
Fei Wang, Masayo Koide, George C Wellman
Voltage-dependent calcium channels (VDCCs) play an essential role in regulating cerebral artery diameter and it is widely appreciated that the L-type VDCC, CaV1.2, encoded by the CACNA1C gene, is a principal Ca(2+) entry pathway in vascular myocytes. However, electrophysiological studies using 10 mM extracellular barium ([Ba(2+)]o) as a charge carrier have shown that ~20% of VDCC currents in cerebral artery myocytes are insensitive to 1,4-dihydropyridine (1,4-DHP) L-type VDDC inhibitors such as nifedipine. Here, we investigated the hypothesis that the concentration of extracellular divalent cations can influence nifedipine inhibition of VDCC currents...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28436816/-almost-lost-at-sea-an-unusual-cause-of-cortical-blindness
#13
Jeffrey Walden, Edward Van Williamson
A middle-aged man with a history of type 2 diabetes mellitus, hypertension, hyperlipidemia, prior cerebral vascular accident, and remote history of generalized seizure disorder presented with worsening right-sided visual deficits and focal seizures. On examination the patient had dense homonymous hemianopsia on the right side. He was initially diagnosed with a stroke and underwent further investigation for potential causes. However, upon further review, magnetic resonance imaging (MRI) findings and repeat examination were more consistent with seizure-related effects on cortical brain matter as the cause of his visual disturbances rather than stroke...
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28436714/a-hemorrhagic-complication-after-onyx-embolization-of-a-tentorial-dural-arteriovenous-fistula-a-caution-about-subdural-extension-with-pial-arterial-supply
#14
Kenichi Sato, Yasushi Matsumoto, Hidenori Endo, Teiji Tominaga
We report a case of tentorial dural arteriovenous fistula (DAVF) with a severe intracranial hemorrhage occurring after Onyx embolization. A 40-year-old man presented with an asymptomatic tentorial DAVF on angiography. Transarterial embolization with Onyx was performed via the middle meningeal artery, and the cast filled the fistula itself and its proximal draining vein. Postoperative angiography confirmed complete occlusion of the DAVF. A computed tomography scan performed immediately after the procedure demonstrated an acute subdural hematoma with the temporal hemorrhage...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28436420/key-role-of-15-lo-15-hete-in-angiogenesis-and-functional-recovery-in-later-stages-of-post-stroke-mice
#15
Di Wang, Yu Liu, Li Chen, Pengyan Li, Youyang Qu, Yanmei Zhu, Yulan Zhu
This study sought to clarify the effects of 15-lipoxygenase/15-hydroxyeicosatetraenoic acid in angiogenesis and neurological functional recovery after cerebral ischaemic stroke in mice. In vivo, we performed behavioural tests to determine functional recovery after stroke. Double immunofluorescence staining of CD31 and Ki67/PCNA was performed to evaluate the effects of 15-lipoxygenase/15-hydroxyeicosatetraenoic acid on angiogenesis in an MCAO mouse model. In vitro, we investigated the effects of 15-hydroxyeicosatetraenoic acid on BMVEC proliferation and migration...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436294/overexpression-of-vla-4-in-glial-restricted-precursors-enhances-their-endothelial-docking-and-induces-diapedesis-in-a-mouse-stroke-model
#16
Anna Jablonska, Daniel J Shea, Suyi Cao, Jeff Wm Bulte, Miroslaw Janowski, Konstantinos Konstantopoulos, Piotr Walczak
The loss of oligodendrocytes after stroke is one of the major causes of secondary injury. Glial-restricted progenitors (GRPs) have remylenating potential after intraparenchymal cerebral transplantation. The intraarterial (IA) injection route is an attractive gateway for global brain delivery, but, after IA infusion, naive GRPs fail to bind to the cerebral vasculature. The aim of this study was to test whether overexpression of Very Late Antigen-4 (VLA-4) increases endothelial docking and cerebral homing of GRPs in a stroke model...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28436255/detection-and-characterization-of-small-infarcts-in-the-caudate-nucleus-on-7-tesla-mri-the-smart-mr-study
#17
Rashid Ghaznawi, Jeroen de Bresser, Yolanda van der Graaf, Maarten Ht Zwartbol, Theo D Witkamp, Mirjam I Geerlings, Jeroen Hendrikse
Small infarcts are among the key imaging features of cerebral small vessel disease (CSVD), but remain largely undetected on conventional MRI. We aimed to evaluate (1) imaging criteria for the detection of small infarcts in the caudate nucleus on 7T MRI, (2) intra- and inter-rater agreement, (3) frequency and (4) detection rate on 7T versus 1.5T MRI. In 90 patients (68 ± 8 years) with a history of vascular disease from the SMART-MR study, we defined 7T imaging criteria for cavitated and non-cavitated small infarcts in the caudate nucleus...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28435652/stroke-in-a-child-with-hemoglobin-sc-disease-a-case-report-describing-use-of-hydroxyurea-after-transfusion-therapy
#18
Diana Fridlyand, Caroline Wilder, E Leila Jerome Clay, Bruce Gilbert, Betty S Pace
Children with hemoglobin SC (HbSC) disease suffer a significant incidence of silent cerebral infarcts but stroke is rare. A 2-year-old African American boy with HbSC disease presented with focal neurologic deficits associated with magnetic resonance imaging evidence of cerebral infarction with vascular abnormalities. After the acute episode he was treated with monthly transfusions and subsequently transitioned to hydroxyurea therapy. The benefits of hydroxyurea as a fetal hemoglobin inducer in HbSC disease, to ameliorate clinical symptoms are supported by retrospective studies...
March 22, 2017: Pediatric Reports
https://www.readbyqxmd.com/read/28435465/hypertension-cerebrovascular-impairment-and-cognitive-decline-in-aged-a%C3%AE-pp-ps1-mice
#19
Maximilian Wiesmann, Valerio Zerbi, Diane Jansen, Dieter Lütjohann, Andor Veltien, Arend Heerschap, Amanda J Kiliaan
Cardiovascular risk factors, especially hypertension, are also major risk factors for Alzheimer's disease (AD). To elucidate the underlying vascular origin of neurodegenerative processes in AD, we investigated the relation between systolic blood pressure (SBP) cerebral blood flow (CBF) and vasoreactivity with brain structure and function in a 16-18 months old double transgenic AβPPswe/PS1dE9 (AβPP/PS1) mouse model for AD. These aging AβPP/PS1 mice showed an increased SBP linked to a declined regional CBF...
2017: Theranostics
https://www.readbyqxmd.com/read/28434675/cadasil-as-a-useful-medical-model-and-genetic-form-of-vascular-depression
#20
Joon Hyuk Park, Bong-Hee Jeon, Jung Seok Lee, Paul A Newhouse, Warren D Taylor, Brian D Boyd, Ki Woong Kim, Moon-Doo Kim
OBJECTIVE: The main magnetic resonance imaging (MRI) findings of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) are white matter hyperintensities (WMHs), lacunar infarctions, and cerebral microbleeds (CMBs). The purpose of this study was to investigate the effects of these three neuroimaging markers of CADASIL on depression to determine whether CADASIL is a useful medical model supporting the vascular depression hypothesis. METHODS: Eighty-four subjects with CADASIL, aged 34-86 years, participated in this study...
March 23, 2017: American Journal of Geriatric Psychiatry
keyword
keyword
106479
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"