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leukoaraiosis

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https://www.readbyqxmd.com/read/29768278/lower-plasma-klotho-concentrations-are-associated-with-vascular-dementia-but-not-late-onset-alzheimer-s-disease
#1
Gloria Brombo, Francesco Bonetti, Beatrice Ortolani, Mario Luca Morieri, Cristina Bosi, Angelina Passaro, Giovanni B Vigna, Caterina Borgna, Maria Vittoria Arcidicono, Veronica Tisato, Giovanni Zuliani
BACKGROUND: The protein Klotho is involved in biological processes related to longevity, cardiovascular health, and cognition. Serum Klotho levels have been associated with better cognition in animal models; moreover, lower Klotho concentrations in cerebrospinal fluid from subjects with late-onset Alzheimer's disease (LOAD) have been reported. OBJECTIVE: Our study aimed to examine the possible relationship between Klotho plasma concentrations and cognitive status in the elderly...
May 16, 2018: Gerontology
https://www.readbyqxmd.com/read/29762091/rapid-automated-quantification-of-cerebral-leukoaraiosis-on-ct-images-a-multicenter-validation-study
#2
Liang Chen, Anoma Lalani Carlton Jones, Grant Mair, Rajiv Patel, Anastasia Gontsarova, Jeban Ganesalingam, Nikhil Math, Angela Dawson, Basaam Aweid, David Cohen, Amrish Mehta, Joanna Wardlaw, Daniel Rueckert, Paul Bentley
Purpose To validate a random forest method for segmenting cerebral white matter lesions (WMLs) on computed tomographic (CT) images in a multicenter cohort of patients with acute ischemic stroke, by comparison with fluid-attenuated recovery (FLAIR) magnetic resonance (MR) images and expert consensus. Materials and Methods A retrospective sample of 1082 acute ischemic stroke cases was obtained that was composed of unselected patients who were treated with thrombolysis or who were undergoing contemporaneous MR imaging and CT, and a subset of International Stroke Thrombolysis-3 trial participants...
May 15, 2018: Radiology
https://www.readbyqxmd.com/read/29715283/leukoaraiosis-and-risk-of-intracranial-hemorrhage-and-outcome-after-stroke-thrombolysis
#3
Chun-Ming Yang, Chien-Ling Hung, Hui-Chen Su, Huey-Juan Lin, Chih-Hung Chen, Chou-Ching Lin, Han-Hwa Hu, Sheng-Hsiang Lin, Pi-Shan Sung
BACKGROUND: The impact of leukoaraiosis on the risk of symptomatic intracerebral hemorrhage (SICH) after stroke thrombolysis is conflicting, and the data on Asian populations are lacking. Therefore, in this study, we assessed the association between leukoaraiosis and SICH, and the association between leukoaraiosis and the 90-day functional outcome in the Asian population. METHODS: Data were collected from a two-center prospective registry of acute ischemic stroke patients given intravenous tissue plasminogen activator between 2006 and 2014...
2018: PloS One
https://www.readbyqxmd.com/read/29690709/-influence-of-intravenous-thrombolysis-on-prognosis-of-acute-ischemic-stroke-in-patients-with-moderate-to-severe-leukoaraiosis
#4
Y Y Liu, M Zhang, P Gao, Z X Zhang, X J Zhou, W W Yun
Objective: To investigate the influence of intravenous thrombolysis on prognosis of acute ischemic stroke in patients with moderate to severe leukoaraiosis and to analyze influencing factors of the clinical prognosis. Methods: We consecutively included acute ischemic stroke patients with middle cerebral artery occlusion ( n =101) from Department of Neurology or Emergency, and patients were divided into two groups according to whether on intravenous thrombolysis therapy (IVT) or not. The Fugl-Meyer scale score (FMS) was used to assess motor function outcome and the National Institutes of Health Stroke Scale (NIHSS) score was used to assess neurologic function...
April 3, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29687301/small-vessel-disease-is-associated-with-tissue-inhibitor-of-matrix-metalloproteinase-4-after-ischaemic-stroke
#5
Francesco Arba, Benedetta Piccardi, Vanessa Palumbo, Betti Giusti, Patrizia Nencini, Anna Maria Gori, Alice Sereni, Mascia Nesi, Giovanni Pracucci, Giorgio Bono, Paolo Bovi, Enrico Fainardi, Domenico Consoli, Antonia Nucera, Francesca Massaro, Giovanni Orlandi, Francesco Perini, Rossana Tassi, Maria Sessa, Danilo Toni, Rosanna Abbate, Domenico Inzitari
Small vessel disease (SVD) is frequent in aging and stroke patients. Inflammation and remodeling of extracellular matrix have been suggested as concurrent mechanisms of SVD. We investigated the relationship between imaging features of SVD and circulating metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) in patients with ischaemic stroke. In patients treated with intravenous thrombolysis, we took blood samples before intravenous thrombolysis and 90 days after the acute stroke and analysed levels of MMPs and TIMPs...
April 23, 2018: Translational Stroke Research
https://www.readbyqxmd.com/read/29682525/blood-brain-barrier-damage-as-the-starting-point-of-leukoaraiosis-caused-by-cerebral-chronic-hypoperfusion-and-its-involved-mechanisms-effect-of-agrin-and-aquaporin-4
#6
Jing Huang, Junwen Li, Chao Feng, Xi Huang, Liping Wong, Xueyuan Liu, Zhiyu Nie, Gangming Xi
White matter lesion (WML) is popular in the patients aged over 65. Brain edema and blood-brain barrier (BBB) dysfunction due to cerebral chronic hypoperfusion (CCH) contributed to WML. Preserving astrocyte polarity is vital for BBB integrity. In our experiment, CCH model is established by bilateral carotid arteries occlusion (2VO). Leukoaraiosis was verified by fiber density stain, and brain edema was evaluated using brain water content measuring. The expressions of agrin and aquaporin-4 (AQP4) were evaluated, as well as the integrity of BBB...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29660221/brainstem-leukoaraiosis-independently-predicts-poor-outcome-after-ischemic-stroke
#7
Eva Giralt-Steinhauer, Santiago Medrano, Carolina Soriano-Tárraga, Marina Mola-Caminal, Raquel Rasal, Elisa Cuadrado-Godia, Ana Rodríguez-Campello, Angel Ois, J Capellades, Jordi Jimenez-Conde, Jaume Roquer
BACKGROUND: Increased supratentorial white matter hyperintensities volume (S-WMHV) has been reported as a predictor of worse outcome in acute ischemic stroke (AIS) patients. However, few studies focus on less common locations such as brainstem-white matter hyperintensities (B-WMH), and their relationship with S-WMHV. This study aimed to examine whether B-WMH affects clinical outcome after AIS or transient ischemic attack (TIA). METHODS: Based on MRI evidence, B-WMH was evaluated in 313 prospectively identified patients with AIS/TIA and registered as absent or present...
April 16, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29643322/metabolically-healthy-obesity-and-risk-of-leukoaraiosis-a-population-based-cross-sectional-study
#8
Takuro Okamura, Yoshitaka Hashimoto, Masahide Hamaguchi, Akihiro Ohbora, Takao Kojima, Michiaki Fukui
Metabolically healthy obese (MHO) individual is known to be defended from the metabolic complications of obesity. Leukoaraiosis, which is commonly detected on brain magnetic resonance imaging (MRI), is now recognized as a risk of stroke, dementia and death. However, the association between MHO and the prevalence of leukoaraiosis is unclear. In this cross-sectional study of 796 participants who received a medical examination program, we investigated the association between MHO and the prevalence of leukoaraiosis...
April 10, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29627833/small-hyperintensities-in-the-area-of-the-perforating-arteries-in-patients-with-seizure
#9
Nobuyuki Izutsu, Yasunori Fujimoto, Naoaki Yamada, Ryuichiro Kajikawa, Kazuhiro Yoshimura, Munenori Nagashima, Akatsuki Wakayama, Toshiki Yoshimine
BACKGROUND/AIM: We previously observed spotty hyperintense lesions in the region of the perforating arteries on peri-ictal diffusion-weighted imaging (DWI); however, no report has formally described these findings. The aim of this study was to investigate focal intensities on peri-ictal DWI, and to evaluate the clinical significance of these lesions. METHODS: We conducted a retrospective review of 677 consecutive patients with seizure who completed peri-ictal DWI within 24 h after seizure onset...
April 6, 2018: European Neurology
https://www.readbyqxmd.com/read/29610037/cytokine-response-tract-specific-fractional-anisotropy-and-brain-morphometry-in-post-stroke-cognitive-impairment
#10
Aleksey Kulesh, Viktor Drobakha, Elena Kuklina, Irina Nekrasova, Vladimir Shestakov
BACKGROUND: Post-stroke cognitive impairment is a clinically heterogeneous condition and its types have a different course and prognosis. The aim of the present study is to address the roles of inflammation, white matter pathology, and brain atrophy in different neuropsychological types of cognitive impairment in the acute period of ischemic stroke. METHODS: In 92 patients, we performed an assessment of the cognitive status and measured concentrations of cytokines (interleukin [IL]-1β, IL-6, tumor necrosis factor-alpha, IL-10) in liquor and serum, as well as a number of magnetic resonance imaging (MRI) morphometric parameters and fractional anisotropy...
March 30, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29562586/correlation-between-antiplatelet-therapy-in-secondary-prevention-of-acute-cerebral-infarction-and-cerebral-microbleeds-a-susceptibility-weighted-imaging-swi-study
#11
Caiyun Jia, Ci Wei, Ming Hu, Jing Xu, Kun Niu, Chao Zhang, Peiyuan Lv, Ling Li, Yanhong Dong
OBJECTIVE: To investigate the clinical significance of antiplatelet aggregation therapy for patients diagnosed with acute cerebral infarction (ACI) complicated with the cerebral microbleeds (CMBs). METHODS: Thirty patients with ACI and 36 patients with intracerebral hemorrhage (ICH) were included in this research. Two groups, studied by susceptibility-weighted imaging (SWI), were compared in terms of the number, location, and severity of CMBs. Then, 30 cases of ACI patients were divided into CMBs sub-group and non-CMBs sub-group...
March 15, 2018: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29540612/association-of-white-matter-hyperintensities-with-short-term-outcomes-in-patients-with-minor-cerebrovascular-events
#12
Charlotte Zerna, Amy Y X Yu, Jayesh Modi, Shiel K Patel, Jonathan I Coulter, Eric E Smith, Shelagh B Coutts
BACKGROUND AND PURPOSE: White matter lesions (WML) are associated with cognitive decline, increased stroke risk, and disability in old age. We hypothesized that superimposed acute cerebrovascular occlusion on chronic preexisting injury (leukoaraiosis) leads to worse outcome after minor cerebrovascular event, both using quantitative (volumetric) and qualitative (Fazekas scale) assessment, as well as relative total brain volume. METHODS: WML volume assessment was performed in 425 patients with high-risk transient ischemic attack (TIA; motor/speech deficits >5 minutes) or minor strokes from the CATCH study (CT and MRI in the Triage of TIA and Minor Cerebrovascular Events to Identify High Risk Patients)...
April 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29534400/-changes-of-platelet-aggregability-in-patients-with-subcortical-ischemic-vascular-disease
#13
X X Zhao, C Z Shen, X X Xie, Q Q Xu, X Zhou, Z W Sun
Objective: To explore the change and value of platelet aggregability(PA)in patients with subcortical ischemic vascular disease (SIVD). Methods: A total of 108 patients with SIVD hospitalized in the Department of Neurology of the First Affiliated Hospital of Anhui Medical University from October 2015 to July 2017 were enrolled as SIVD group and 30 healthy cases were also in cluded as normal controlgroup (NC). According to magnetic resonance imaging(MRI), the SIVD group was further divided into two subtypes: lacunar infarction(LI) ( n =31)and leukoaraiosis(LA) ( n =77)...
March 6, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29526127/-radiological-forms-of-cerebral-amyloid-angiopathy
#14
Sándor Csizmadia, Erika Vörös
Cerebral amyloid angiopathy (CAA) is most commonly recognized by β-amyloid deposition in the small and medium sized vessels of the brain. The 71-year-old female presented with a sudden onset of vertigo and headache. By native computer tomography (CT) examination we found cerebral atrophy and the sign of chronic vascular injury. The complaints of the patient worsened, thus magnetic resonance imaging (MRI) was performed. The MRI scan revealed a bleeding transformation of an ischemic lesion in the right occipital region...
March 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29438074/lacunar-infarcts-but-not-perivascular-spaces-are-predictors-of-cognitive-decline-in-cerebral-small-vessel-disease
#15
MULTICENTER STUDY
Philip Benjamin, Sarah Trippier, Andrew J Lawrence, Christian Lambert, Eva Zeestraten, Owen A Williams, Bhavini Patel, Robin G Morris, Thomas R Barrick, Andrew D MacKinnon, Hugh S Markus
BACKGROUND AND PURPOSE: Cerebral small-vessel disease is a major cause of cognitive impairment. Perivascular spaces (PvS) occur in small-vessel disease, but their relationship to cognitive impairment remains uncertain. One reason may be difficulty in distinguishing between lacunes and PvS. We determined the relationship between baseline PvS score and PvS volume with change in cognition over a 5-year follow-up. We compared this to the relationship between baseline lacune count and total lacune volume with cognition...
March 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29428736/whole-genome-sequencing-identifies-novel-notch3-mutations-for-leukoaraiosis
#16
Wen-Lei Shi, Yong-Biao Zhang, Wei Wei, Hong-Yan Gao, Yong-Hua Huang
BACKGROUND: Leukoaraiosis, a subtype of cerebral small vessel disease, is a common condition found on CT or MRI in elderly people. Leukoaraiosis is strongly associated with cognitive impairment, mental abnormality, gait disorders and urinary dysfunction. However, the genetic risk of leukoaraiosis is largely unknown. OBJECTIVE: The goal of this study is to identify the loss-of-function mutations for leukoaraiosis in Chinese. METHODS: We performed whole-genome sequencing on 11 leukoaraiosis patients and further validated the candidate mutations and tags of the candidate genes in 304 individuals including 160 patients and 144 healthy controls using Sequenom MassARRAY platform...
February 8, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29422904/emerging-role-of-immunity-in-cerebral-small-vessel-disease
#17
REVIEW
Ying Fu, Yaping Yan
Cerebral small vessel disease (CSVD) is one of the main causes of vascular dementia in older individuals. Apart from risk containment, efforts to prevent or treat CSVD are ineffective due to the unknown pathogenesis of the disease. CSVD, a subtype of stroke, is characterized by recurrent strokes and neurodegeneration. Blood-brain barrier (BBB) impairment, chronic inflammatory responses, and leukocyte infiltration are classical pathological features of CSVD. Understanding how BBB disruption instigates inflammatory and degenerative processes may be informative for CSVD therapy...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29381739/impaired-memory-is-more-closely-associated-with-brain-beta-amyloid-than-leukoaraiosis-in-hypertensive-patients-with-cognitive-symptoms
#18
Eric E Smith, Alona Muzikansky, Cheryl R McCreary, Saima Batool, Anand Viswanathan, Bradford C Dickerson, Keith Johnson, Steven M Greenberg, Deborah Blacker
BACKGROUND: Hypertension is the strongest modifiable risk factor for subcortical ischemic changes and is also a risk factor for Alzheimer's dementia. We used neuroimaging to investigate the pathological basis of early cognitive symptoms in patients with hypertension. METHODS: In this cross-sectional cohort study 67 patients age >60 years with hypertension and Clinical Dementia Rating scale score of 0.5 without dementia, and without history of symptomatic stroke, underwent MRI for measurement of subcortical vascular changes and positron emission tomography (PET) scan with Pittsburgh Compound B (PiB-PET) to detect beta-amyloid deposition...
2018: PloS One
https://www.readbyqxmd.com/read/29367736/statins-do-not-increase-markers-of-cerebral-angiopathies-in-patients-with-cardioembolic-stroke
#19
Joan Martí-Fàbregas, Santiago Medrano-Martorell, Elisa Merino, Luis Prats-Sánchez, Rebeca Marín, Raquel Delgado-Mederos, Pol Camps-Renom, Alejandro Martínez-Domeño, Manuel Gómez-Choco, Lidia Lara, Ignacio Casado-Naranjo, David Cánovas, Maria José Torres, Marimar Freijo, Ana Calleja, Yolanda Bravo, Dolores Cocho, Ana Rodríguez-Campello, Beatriz Zandio, Blanca Fuentes, Alicia de Felipe, Laura Llull, José Maestre, María Hernández, Moisès Garcés, Ana Maria De Arce-Borda, Ernest Palomeras, Manuel Rodríguez-Yáñez, Inma Díaz-Maroto, Marta Serrano, Jéssica Fernández-Domínguez, Jordi Sanahuja, Francisco Purroy, Marialuisa Zedde, Jordi Delgado-Mengual, Ignasi Gich
We investigated whether pre-treatment with statins is associated with surrogate markers of amyloid and hypertensive angiopathies in patients who need to start long-term oral anticoagulation therapy. A prospective multicenter study of patients naive for oral anticoagulants, who had an acute cardioembolic stroke. MRI was performed at admission to evaluate microbleeds, leukoaraiosis and superficial siderosis. We collected data on the specific statin compound, the dose and the statin intensity. We performed bivariate analyses and a logistic regression to investigate variables associated with microbleeds...
January 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329733/association-between-leukoaraiosis-and-cerebral-blood-flow-territory-alteration-in-asymptomatic-internal-carotid-artery-stenosis
#20
Y-F Chen, Y-S Kuo, W-C Wu, S-C Tang, S-F Jiang
AIM: To test the hypothesis that leukoaraiosis (also known as white matter lesion) is associated with cerebral blood flow territory change as revealed by territorial arterial spin-labeling (TASL) magnetic resonance imaging (MRI) in patients with asymptomatic internal carotid artery stenosis (aICAS). MATERIALS AND METHODS: The institutional review board approved this study. Thirty-three patients with aICAS were included prospectively and divided into high-grade (ultrasonographic stenosis ≥70%, n=17) and low-grade (n=16) groups; 16 healthy subjects were also included...
May 2018: Clinical Radiology
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