keyword
MENU ▼
Read by QxMD icon Read
search

Brain vascular disease

keyword
https://www.readbyqxmd.com/read/29679574/evidence-of-demyelination-in-mild-cognitive-impairment-and-dementia-using-a-direct-and-specific-magnetic-resonance-imaging-measure-of-myelin-content
#1
Mustapha Bouhrara, David A Reiter, Christopher M Bergeron, Linda M Zukley, Luigi Ferrucci, Susan M Resnick, Richard G Spencer
INTRODUCTION: We investigated brain demyelination in aging, mild cognitive impairment (MCI), and dementia using magnetic resonance imaging of myelin. METHODS: Brains of young and old controls and old subjects with MCI, Alzheimer's disease, or vascular dementia were scanned using our recently developed myelin water fraction (MWF) mapping technique, which provides greatly improved accuracy over previous comparable methods. Maps of MWF, a direct and specific myelin measure, and relaxation times and magnetization transfer ratio, indirect and nonspecific measures, were constructed...
April 18, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29677618/altered-serum-levels-of-vascular-endothelial-growth-factor-in-first-episode-drug-na%C3%A3-ve-and-chronic-medicated-schizophrenia
#2
Fei Ye, Qiongqiong Zhan, Wenhuan Xiao, Xiaowei Tang, Jin Li, Hui Dong, Weiwei Sha, Xiaobin Zhang
There is much evidence of a relationship between alterations in the brain's regional cellular energy metabolism and blood flow in schizophrenic. Vascular endothelial growth factor (VEGF) plays a role in the pathogenesis of neuropsychiatric illnesses. So, we compared serum VEGF levels in drug-naïve first-episode psychotic (FEP) and chronically medicated schizophrenic to examine if a correlation existed between VEGF and psychopathological symptoms. The serum VEGF levels were assessed in 46 FEP patients, 47 chronic medicated patients and 50 healthy controls...
April 11, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29677060/cerebral-small-vessel-but-not-large-vessel-disease-is-associated-with-impaired-cerebral-autoregulation-during-cardiopulmonary-bypass-a-retrospective-cohort-study
#3
Yohei Nomura, Roland Faegle, Daijiro Hori, Abbas Al-Qamari, Alexander J Nemeth, Rebecca Gottesman, Gayane Yenokyan, Charles Brown, Charles W Hogue
BACKGROUND: Impaired cerebral blood flow (CBF) autoregulation during cardiopulmonary bypass (CPB) is associated with stroke and other adverse outcomes. Large and small arterial stenosis is prevalent in patients undergoing cardiac surgery. We hypothesize that large and/or small vessel cerebral arterial disease is associated with impaired cerebral autoregulation during CPB. METHODS: A retrospective cohort analysis of data from 346 patients undergoing cardiac surgery with CPB enrolled in an ongoing prospectively randomized clinical trial of autoregulation monitoring were evaluated...
April 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29675962/dual-wavelength-hybrid-optoacoustic-ultrasound-biomicroscopy-for-functional-imaging-of-large-scale-cerebral-vascular-networks
#4
Johannes Rebling, Héctor Estrada, Sven Gottschalk, Gali Sela, Michael Zwack, Georg Wissmeyer, Vasilis Ntziachristos, Daniel Razansky
A critical link exists between pathological changes of cerebral vasculature and diseases affecting brain function. Microscopic techniques have played an indispensable role in the study of neurovascular anatomy and functions. Yet, investigations are often hindered by sub-optimal trade-offs between the spatiotemporal resolution, field-of-view and type of contrast offered by the existing optical microscopy techniques. We present a hybrid dual-wavelength optoacoustic biomicroscope capable of rapid transcranial visualization of large-scale cerebral vascular networks...
April 19, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29673549/tau-and-neuroinflammation-what-impact-for-alzheimer-s-disease-and-tauopathies
#5
REVIEW
Cyril Laurent, Luc Buée, David Blum
Alzheimer's Disease (AD) is a chronic neurodegenerative disorder and the most common type of dementia (60-80% of cases). In 2016, nearly 44 million people were affected by AD or related dementia. AD is characterized by progressive neuronal damages leading to subtle and latter obvious decline in cognitive functions including symptoms such as memory loss or confusion, which ultimately require full-time medical care. Its neuropathology is defined by the extracellular accumulation of amyloid-β (Aβ) peptide into amyloid plaques, and intraneuronal neurofibrillary tangles (NFT) consisting of aggregated hyper- and abnormal phosphorylation of tau protein...
February 2018: Biomedical Journal
https://www.readbyqxmd.com/read/29670826/characteristics-of-paramedian-pontine-arteries-disease-and-its-association-with-hemoglobina1c
#6
Haiyan Li, Yaqing Shu, Biao Hu, Yongqiang Dai, Yinyao Lin, Yilong Shan, Yuge Wang, Wei Cai, Zhengqi Lu
Objectives: The association of branch atherosclerotic disease (BAD) and diabetes mellitus (DM) in the territory of posterior circulation is rarely discussed. Intracranial BAD was divided into two different types: paramedian pontine arteries (PPA) disease (PPD) and lenticulostriate arteries (LSA) disease. The goal of the study was to evaluate the clinical characteristics of PPD and its association with hemoglobinA1c (HbA1c) in China. Materials and Methods: Radiologically confirmed PPD was defined as an isolated unilateral infarction extending to the ventral surface of the pons...
April 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29669946/pravastatin-therapy-during-preeclampsia-prevents-long-term-adverse-health-effects-in-mice
#7
Nicola Garrett, Joaquim Pombo, Michelle Umpierrez, James E Clark, Mark Simmons, Guillermina Girardi
Preeclampsia (PE), associates with long-term increased risk for cardiovascular disease in women, suggesting that PE is not an isolated disease of pregnancy. It is not known if increased risk for long-term diseases is due to PE-specific factors or to prepregnancy renal and cardiovascular risk factors. We used a mouse model in which a WT female with normal prepregnancy health develops PE to investigate if preeclampsia causes long-term cardiovascular consequences after pregnancy for mothers and offspring. Mothers exhibited endothelial dysfunction and hypertension after PE and had glomerular injury that not only persisted but deteriorated, leading to fibrosis...
April 19, 2018: JCI Insight
https://www.readbyqxmd.com/read/29666296/phase-ii-study-to-evaluate-the-efficacy-and-safety-of-rilotumumab-and-bevacizumab-in-subjects-with-recurrent-malignant-glioma
#8
Mary Lou Affronti, Jennifer Gamboa Jackman, Frances McSherry, James E Herndon, Elwood C Massey, Eric Lipp, Annick Desjardins, Henry S Friedman, Gordana Vlahovic, James Vredenburgh, Katherine B Peters
LESSONS LEARNED: Due to evolving imaging criteria in brain tumors and variation in magnetic resonance imaging evaluation, it is not ideal to use response rate as a primary objective. Future studies involving antiangiogenic agents should use overall survival.Disease-expected toxicities should be considered when defining the clinical significance of an adverse event. For example, vascular thromboembolic events are common in brain tumor patients and should not be attributed to the study drug in the safety analysis...
April 17, 2018: Oncologist
https://www.readbyqxmd.com/read/29666144/sporadic-amyotrophic-lateral-sclerosis-sals-skeletal-muscle-response-to-cerebrospinal-fluid-from-sals-patients-in-a-rat-model
#9
Shruthi Shanmukha, Gayathri Narayanappa, Atchayaram Nalini, Phalguni Anand Alladi, Trichur R Raju
Skeletal muscle atrophy is the most prominent feature of amyotrophic lateral sclerosis (ALS), an adult-onset neurodegenerative disease of motor neurons. However, the contribution of skeletal muscle to disease progression remains elusive. Our previous studies have shown that intrathecal injection of cerebrospinal fluid from sporadic ALS patients (ALS-CSF) induces several degenerative changes in motor neurons and glia of neonatal rats. Here, we describe various pathologic events in the rat extensor digitorum longus muscle following intrathecal injection of ALS-CSF...
April 16, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29663995/-risk-factors-of-atrial-fibrillation-in-critical-ill-patients
#10
Jianyu Fu, Hongying Bi, Yunsong Xia, Hui Fang, Xu Liu, Yan Tang, Difen Wang
OBJECTIVE: To observe the clinical features of atrial fibrillation (AF) patients, and to explore the correlation between the routine detection index and the new-onset AF and to find out risk factors for new AF in critically ill patients. METHODS: A prospective observational study was conducted. The patients with AF admitted to intensive care unit (ICU) of the Affiliated Hospital of Guizhou Medical University from March 2016 to June 2017 were enrolled. The patients were divided into new-onset AF group and past-existed AF group according to their past history of AF (including persistent AF, paroxysmal AF or permanent AF)...
April 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29663818/alternative-hypotheses-related-to-alzheimer-s-disease
#11
V Cubinkova, B Valachova, I Uhrinova, V Brezovakova, T Smolek, S Jadhav, N Zilka
Alzheimer's disease represents the most common form of dementia and belongs to the group of neurodegenerative disorders characterized by progressive loss of neurons in the central nervous system. In the pathogenesis of Alzheimer's disease several etiologic and pathogenic factors exist, which lead to the dysfunction of neurotransmitter systems and consequent cognitive decline. Last three decades have delivered a crucial progress leading to better understanding of Alzheimer's disease, however, the exact mechanisms of pathology remain unclear...
2018: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29660039/trial-readiness-in-cavernous-angiomas-with-symptomatic-hemorrhage-cash
#12
Sean P Polster, Ying Cao, Timothy Carroll, Kelly Flemming, Romuald Girard, Daniel Hanley, Nicholas Hobson, Helen Kim, James Koenig, Janne Koskimäki, Karen Lane, Jennifer J Majersik, Nichol McBee, Leslie Morrison, Robert Shenkar, Agnieszka Stadnik, Richard E Thompson, Joseph Zabramski, Hussein A Zeineddine, Issam A Awad
BACKGROUND: Brain cavernous angiomas with symptomatic hemorrhage (CASH) are uncommon but exact a heavy burden of neurological disability from recurrent bleeding, for which there is no proven therapy. Candidate drugs to stabilize the CASH lesion and prevent rebleeding will ultimately require testing of safety and efficacy in multisite clinical trials. Much progress has been made in understanding the epidemiology of CASH, and novel biomarkers have been linked to the biological mechanisms and clinical activity in lesions...
April 11, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29658944/an-in-vivo-model-of-functional-and-vascularized-human-brain-organoids
#13
Abed AlFatah Mansour, J Tiago Gonçalves, Cooper W Bloyd, Hao Li, Sarah Fernandes, Daphne Quang, Stephen Johnston, Sarah L Parylak, Xin Jin, Fred H Gage
Differentiation of human pluripotent stem cells to small brain-like structures known as brain organoids offers an unprecedented opportunity to model human brain development and disease. To provide a vascularized and functional in vivo model of brain organoids, we established a method for transplanting human brain organoids into the adult mouse brain. Organoid grafts showed progressive neuronal differentiation and maturation, gliogenesis, integration of microglia, and growth of axons to multiple regions of the host brain...
April 16, 2018: Nature Biotechnology
https://www.readbyqxmd.com/read/29653202/clinicopathological-feature-and-outcome-of-pythiosis
#14
Maria Nina Chitasombat, Noppadol Larbcharoensub, Ariya Chindamporn, Theerapong Krajaejun
OBJECTIVES: Vascular pythiosis is a life-threatening infection, caused by Pythium insidiosum. We presented the clinical presentation, serodiagnosis, pathology, and outcome from our institution. METHODS: We retrospectively analyzed patients with proven vascular pythiosis at Ramathibodi Hospital, Mahidol University, Bangkok, Thailand from January 2006 to December 2016. RESULTS: Thirteen patients were analyzed, eight thalassemias. Five had aplastic anemia, myelodysplasia, acute leukemia, cirrhosis, and alcoholism...
April 10, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29652661/combined-brain-and-heart-magnetic-resonance-imaging-in-systemic-vasculitides-fiction-or-real-need
#15
REVIEW
Sophie I Mavrogeni, George Kitas, Hildo J Lamb, Klearchos Psychoyios, Theodoros Dimitroulas, Loukia Koutsogeorgopoulou, Kyriaki Boki, Vasiliki Vartela, Genovefa Kolovou, George Markousis-Mavrogenis, Cees G Kallenberg, Loic Guillevin, Dimitrios Vassilopoulos
Systemic vasculitides (SVs) is a group of diseases characterised by inflammation/necrosis of the blood vessel wall in various organs. Simultaneous brain and heart involvement is a cause of increased morbidity/mortality in SV. We aimed to present evidence of concurrent brain/heart involvement in SV and the role of a combined brain/heart magnetic resonance imaging (MRI) in their risk stratification. Cerebral vasculitis (CV) can be presented as focal deficits, seizures, headache, neuropsychiatric manifestations or cognitive dysfunction and cardiovascular disease (CVD) as myocardial/vascular inflammation, perfusion/function defects and fibrosis...
April 10, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29649983/ncx-db-a-unified-resource-for-integrative-analysis-of-the-sodium-calcium-exchanger-super-family
#16
Katrin Bode, Damien M O'Halloran
Na+ /Ca2+ exchangers are low-affinity high-capacity transporters that mediate Ca2+ extrusion by coupling Ca2+ efflux to the influx of Na+ ions. The Na+ /Ca2+ exchangers form a super-family comprised of three branches each differing in ion-substrate selectivity: Na+ /Ca2+ exchangers (NCX), Na+ /Ca2+ /K+ exchangers, and Ca2+ /cation exchangers. Their primary function is to maintain Ca2+ homeostasis and play a particularly important role in excitable cells that experience transient Ca2+ fluxes. Research into the role and activity of Na+ /Ca2+ exchangers has focused extensively on the cardio-vascular system, however, growing evidence suggests that Na+ /Ca2+ exchangers play a key role in neuronal processes such as memory formation, learning, oligodendrocyte differentiation, neuroprotection during brain ischemia and axon guidance...
April 13, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29649969/magnetic-resonance-imaging-for-assessment-of-cerebrovascular-reactivity-and-its-relationship-to-cognition-a-systematic-review
#17
Sarah J Catchlove, Andrew Pipingas, Matthew E Hughes, Helen Macpherson
BACKGROUND: Cerebrovascular reactivity (CVR) refers to the responsiveness of cerebral vasculature to vasoactive stimuli. CVR is an indicator of brain health and can be assessed using vasodilatory techniques and magnetic resonance imaging (MRI). Using such approaches, some researchers have explored the relationship between CVR and cognition; here we systematically review this work. RESULTS: We extracted information pertaining to: (1) study location and design, participant characteristics, sample sizes, (2) design of vascular challenge, end-tidal CO 2 (etCO 2 ) concentrations (if applicable), (3) MRI protocol, (4) cognitive assessment, (5) CVR values, and outcomes of statistical analyses with cognitive tests...
April 12, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29649504/tau-pathology-and-neurochemical-changes-associated-with-memory-dysfunction-in-an-optimised-murine-model-of-global-cerebral-ischaemia-a-potential-model-for-vascular-dementia
#18
Sabah Khan, Nadira Y Yuldasheva, Trevor F C Batten, Alasdair R Pickles, Katherine A B Kellett, Sikha Saha
Cerebral ischemia is known to be a major cause of death and the later development of Alzheimer's disease and vascular dementia. However, ischemia induced cellular damage that initiates these diseases remain poorly understood. This is primarily due to lack of clinically relevant models that are highly reproducible. Here, we have optimised a murine model of global cerebral ischaemia with multiple markers to determine brain pathology, neurochemistry and correlated memory deficits in these animals. Cerebral ischaemia in mice was induced by bilateral common carotid artery occlusion...
April 9, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29649307/bilateral-carotid-artery-stenosis-causes-unexpected-early-changes-in-brain-extracellular-matrix-and-blood-brain-barrier-integrity-in-mice
#19
Jill M Roberts, Michael E Maniskas, Gregory J Bix
Bilateral carotid artery stenosis (BCAS) is one experimental model of vascular dementia thought to preferentially impact brain white matter. Indeed, few studies report hippocampal and cortical pathology prior to 30 days post-stenosis; though it is unclear whether those studies examined regions outside the white matter. Since changes in the blood-brain barrier (BBB) permeability precede more overt brain pathology in various diseases, we hypothesized that changes within the BBB and/or BBB-associated extracellular matrix (ECM) could occur earlier after BCAS in the hippocampus, cortex and striatum and be a precursor of longer term pathology...
2018: PloS One
https://www.readbyqxmd.com/read/29644327/regional-tract-specific-white-matter-hyperintensities-are-associated-with-patterns-to-aging-related-brain-atrophy-via-vascular-risk-factors-but-also-independently
#20
Mohamad Habes, Guray Erus, Jon B Toledo, Nick Bryan, Deborah Janowitz, Jimit Doshi, Henry Völzke, Ulf Schminke, Wolfgang Hoffmann, Hans J Grabe, David A Wolk, Christos Davatzikos
Introduction: We sought to investigate associations of regional white matter hyperintensities (WMHs) within white matter (WM) tracts with cardiovascular risk and brain aging-related atrophy throughout adulthood in the general population, leveraging state of the art pattern analysis methods. Methods: We analyzed a large sample (n = 2367) from the Study of Health in Pomerania, Germany (range 20-90 years). WMHs were automatically segmented on T1-weighted and fluid-attenuated inversion recovery magnetic resonance images, and WMH volumes were calculated in WM regions defined using the John Hopkins University WM tractography atlas...
2018: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
keyword
keyword
104872
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"