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Cerebral small vessels disease

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https://www.readbyqxmd.com/read/29164504/basal-ganglia-cerebral-blood-flow-associates-with-psychomotor-speed-in-adults-with-type-1-diabetes
#1
John P Ryan, Howard J Aizenstein, Trevor J Orchard, Karen A Nunley, Helmet Karim, Caterina Rosano
Type 1 diabetes is associated with slower psychomotor speed, but the neural basis of this relationship is not yet understood. The basal ganglia are a set of structures that are vulnerable to small vessel disease, particularly in individuals with type 1 diabetes. Thus, we examined the relationship between psychomotor speed and resting state resting cerebral blood flow in a sample of adults with diabetes onset during childhood (≤ 17 years of age). The sample included 77 patients (39 M, 38 F) with a mean age of 47...
November 21, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29162363/sex-differences-in-associations-between-blood-lipids-and-cerebral-small-vessel-disease
#2
Z-G Yin, Q-S Wang, K Yu, W-W Wang, H Lin, Z-H Yang
BACKGROUND AND AIMS: Dyslipidemia predicts higher risk of coronary events and stroke and might be associated with cerebral small vessel disease (SVD). Previous studies linking blood lipids and SVD have yielded inconsistent results, which may be attributable to sex differences in lipids metabolism. The aim of this study was to investigate the relationships between blood lipids and SVD in neurologically healthy men and women. METHODS AND RESULTS: Consecutive 817 people aged 50 years or more were enrolled and underwent magnetic resonance imaging scans to evaluate the periventricular white matter lesions (PVWMLs), deep white matter lesions (DWMLs) and silent brain infarction (SBI)...
October 10, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/29156222/cerebral-small-vessel-disease-in-middle-age-and-genetic-predisposition-to-late-onset-alzheimer-s-disease
#3
James D Stefaniak, Li Su, Elijah Mak, Nasim Sheikh Bahaei, Katie Wells, Karen Ritchie, Adam Waldman, Craig W Ritchie, John T O'Brien
INTRODUCTION: Cerebral small vessel disease (CSVD) is associated with late-onset Alzheimer's disease (LOAD) and might contribute to the relationship between apolipoprotein E ε4 (APOEε4) and LOAD, in older people. However, it is unclear whether CSVD begins in middle age in individuals genetically predisposed to LOAD. METHODS: We assessed the relationship between radiological markers of CSVD, white matter hyperintensities and microbleeds, and genetic predisposition to LOAD in a cross-sectional analysis of cognitively normal subjects aged 40-59 years recruited from the PREVENT Dementia study...
November 18, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29149834/cystatin-c-in-cerebrovascular-disorders
#4
Yaru Zhang, Li Sun
Cystatin C (CysC), a cysteine protease inhibitor, has been widely proven to be a highly sensitive biomarker to predict the kidney function. The similarity of the renal and cerebral small vessels has awakened a surge of studies suggesting that CysC plays a key role in various cerebrovascular disorders. This review focuses on four major mechanisms of CysC in a variety of cerebrovascular diseases. (1)The property of the CysC Leu-68-Gln (L68Q) variant to aggregate and the property of the wild type CysC protein to co-aggregate with Amyloid-β (Aβ); (2)The disruption of equilibrium between CysC and related cysteine proteases; (3)The function of CysC as an inflammatory inducing factor; (4)The ability of CysC to induce autophagy...
November 15, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29142188/a-case-of-microscopic-polyangiitis-with-subarachnoid-hemorrhage-and-cardiovascular-complications
#5
Sae Aratani, Yukinao Sakai, Shuichi Tsuruoka
Microscopic polyangiitis (MPA) is a primary systemic vasculitis that predominantly affects small and medium vessels. MPA is rarely complicated with central nervous system or cardiovascular disease. We report a very rare case of MPA complicated with cerebral infarction, cardiovascular disease, and fatal subarachnoid hemorrhage in a 54-year-old man. During the first six days of hospitalization the patient was diagnosed with rapid progressive glomerulonephritis (RPGN), cerebral infarction, and unstable angina...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29133703/cns-small-vessel-vasculitis-distinct-mri-features-and-histopathological-correlation
#6
Kamble J Harsha, Sujit A Jagtap, Tirur R Kapilamoorthy, Chandrasekharan Kesavadas, Bejoy Thomas, Neelima Radhakrishnan
BACKGROUND: Central nervous system (CNS) vasculitis is an uncommon disease, which is a diagnostic and therapeutic challenge for physicians. Large and medium vessel vasculitis is relatively easy to diagnose by angiogram compared to small vessel vasculitis, where angiograms are often normal; imaging features described till date are sensitive but not specific. PURPOSE: Here, we describe distinct magnetic resonance (MR) imaging features of CNS small vessel vasculitis...
November 2017: Neurology India
https://www.readbyqxmd.com/read/29125055/cerebral-amyloid-angiopathy-cerebral-microbleeds-and-implications-for-anticoagulation-decisions-the-need-for-a-balanced-approach
#7
Andreas Charidimou, Ashkan Shoamanesh, Rustam Al-Shahi Salman, Charlotte Cordonnier, Luke A Perry, Kevin N Sheth, Alessandro Biffi, Jonathan Rosand, Anand Viswanathan
Cerebral amyloid angiopathy is a common hemorrhagic small vessel disease of the brain, often associated with high risk of spontaneous lobar intracerebral hemorrhage. When the suspicion of cerebral amyloid angiopathy is raised, clinicians are hesitant in prescribing oral anticoagulation in patients in whom it is otherwise indicated, including the case of non-valvular atrial fibrillation. This is one of the thorniest clinical dilemmas in the field currently. In this short Leading Opinion piece by an international panel of clinicians-researchers active in the field, we present our consistent approach and future outlook on oral anticoagulation post intracerebral hemorrhage and in the setting of clinical-radiologic evidence of cerebral amyloid angiopathy...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/29120920/the-growing-clinical-spectrum-of-cerebral-amyloid-angiopathy
#8
Marieke J H Wermer, Steven M Greenberg
PURPOSE OF REVIEW: Cerebral amyloid angiopathy (CAA) is diagnosed primarily as a cause of lobar intracerebral hemorrhages (ICH) in elderly patients. With improving MRI techniques, however, the role of CAA in causing other symptoms has become clear. Recognizing the full clinical spectrum of CAA is important for diagnosis and treatment. In this review we summarize recent insights in clinical CAA features, MRI biomarkers, and management. RECENT FINDINGS: The rate of ICH recurrence in CAA is among the highest of all stroke subtypes...
November 7, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29119455/ct-brain-artefact-due-to-air-bubbles-in-the-oil-cooling-system-characteristic-band-like-configuration-on-sagittal-reformatted-image
#9
Simon Sin Man Wong, James Siu Wai Cheung, Tom Wai Kin Lee, Chris Siu Chun Tsai, Alex Wing Hung Ng
PURPOSE: To retrospectively review the imaging characteristics of CT artefacts due to air bubbles within the oil cooling system of the X-ray tube housing. MATERIALS AND METHODS: Air bubbles were introduced into the oil cooling system of the X-ray tube housing during tube replacement in one of the CT scanners in the authors' institution. All 126 CT brain studies performed in this period were retrospectively reviewed. One hundred and four studies were negative for artefacts...
November 8, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29116947/cerebrovascular-steal-phenomenon-and-electroconvulsive-therapy-a-case-report-and-review-of-the-literature
#10
Ana Hategan, Calvin H Hirsch
Electroconvulsive therapy (ECT) is a safe and effective treatment for major depressive disorder, but cerebrovascular and cardiovascular complications, although rare, remain the most concerning. This is particularly notable in those with preexisting cerebrovascular disease, which impacts dynamic cerebral autoregulation. In these patients, the increased blood flow to the seizing portions of the brain induced by ECT potentially can reduce cerebral blood flow to ischemic areas, possibly causing adverse neurological events...
November 8, 2017: Journal of ECT
https://www.readbyqxmd.com/read/29114096/fingolimod-protects-against-ischemic-white-matter-damage-by-modulating-microglia-toward-m2-polarization-via-stat3-pathway
#11
Chuan Qin, Wen-Hui Fan, Qian Liu, Ke Shang, Madhuvika Murugan, Long-Jun Wu, Wei Wang, Dai-Shi Tian
BACKGROUND AND PURPOSE: White matter (WM) ischemic injury, a major neuropathological feature of cerebral small vessel diseases, is an important cause of vascular cognitive impairment in later life. The pathogenesis of demyelination after WM ischemic damage are often accompanied by microglial activation. Fingolimod (FTY720) was approved for the treatment of multiple sclerosis for its immunosuppression property. In this study, we evaluated the neuroprotective potential of FTY720 in a WM ischemia model...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29114091/circulating-endothelial-markers-in-retinal-vasculopathy-with-cerebral-leukoencephalopathy-and-systemic-manifestations
#12
Nadine Pelzer, Roel Bijkerk, Marlies E J Reinders, Anton Jan van Zonneveld, Michel D Ferrari, Arn M J M van den Maagdenberg, Jeroen Eikenboom, Gisela M Terwindt
BACKGROUND AND PURPOSE-: Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (RVCL-S) is a monogenic small vessel disease, caused by C-terminal truncating TREX1 mutations, that can be considered a model for stroke and vascular dementia. The pathophysiology of RVCL-S is largely unknown, but systemic endothelial involvement has been suggested, leading to pathology in the brain and other highly vascularized organs. Here, we investigated circulating endothelial markers to confirm endothelial involvement and identify biomarkers for disease activity...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29110998/total-small-vessel-disease-burden-and-brain-network-efficiency-in-cerebral-amyloid-angiopathy
#13
Raffaella Valenti, Yael D Reijmer, Andreas Charidimou, Gregoire Boulouis, Sergi Ramirez Martinez, Li Xiong, Panagiotis Fotiadis, Michael Jessel, Alison Ayres, Grace Riley, Leonardo Pantoni, M Edip Gurol, Steven M Greenberg, Anand Viswanathan
BACKGROUND: Cerebral amyloid angiopathy (CAA) is associated with hemorrhagic and nonhemorrhagic markers small vessel disease (SVD). A composite score to quantify the total burden of SVD on MRI specifically for CAA patients was recently developed. Brain network alterations related to individual MRI markers of SVD in CAA were demonstrated. OBJECTIVES: Considering diffusion based network measures sensitive to detect different relevant SVD-related brain injury, we investigated if increased overall SVD injury on MRI corresponds to worse global brain connectivity in CAA...
November 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29104648/identification-of-key-signaling-pathways-in-cerebral-small-vessel-disease-using-differential-pathway-network-analysis
#14
Gang Zheng, Qianlei Zheng, Qianwei Xu
Cerebral small vessel disease (CSVD) primarily affects the perforating cerebral arterioles and capillaries, and results in injury to subcortical grey and white matter. Despite advances in determining the genetic basis of CSVD, the molecular mechanisms underlying the development and progression of CSVD remain unclear. The present study aimed to identify significant signaling pathways associated with CSVD based on differential pathway network analysis. Combining CSVD microarray data with human protein-protein interaction data and data from the Reactome pathway database, pathway interactions were constructed using the Spearman's correlation coefficient strategy...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29101611/pre-existing-small-vessel-disease-in-patients-with-acute-stroke-from-the-middle-east-southeast-asia-and-philippines
#15
Naveed Akhtar, Abdul Salam, Saadat Kamran, Atlantic D'Souza, Yahia Imam, Ahmed Own, Ahmed ElSotouhy, Surjith Vattoth, Paula Bourke, Zain Bhutta, Sujatha Joseph, Mark Santos, Rabia Ali Khan, Ashfaq Shuaib
Asymptomatic small vessel disease (SVD), including white matter hyperintensities (WMHIs), periventricular hyperintensities (PVHIs), silent stroke (SS), and cerebral microbleeds (CMBs), increases the risk of stroke. There are limited studies of SVD in subjects from the Middle East and Southeast Asia (SA). All patients admitted to stroke service between 2014 and 2015 were reviewed for presence of "pre-existing" SVD. Stroke mimics with no previous history of stroke were used as controls. There were 1727 patients admitted with stroke...
November 3, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/29101255/midlife-systemic-inflammation-late-life-white-matter-integrity-and-cerebral-small-vessel-disease-the-atherosclerosis-risk-in-communities-study
#16
Keenan A Walker, Melinda C Power, Ron C Hoogeveen, Aaron R Folsom, Christie M Ballantyne, David S Knopman, B Gwen Windham, Elizabeth Selvin, Clifford R Jack, Rebecca F Gottesman
BACKGROUND AND PURPOSE: It is currently unclear whether midlife systemic inflammation promotes the development of white matter (WM) abnormalities and small vessel disease in the elderly. We examined the association of midlife systemic inflammation with late-life WM hyperintensity volume, deep and periventricular WM microstructural integrity (fractional anisotropy and mean diffusivity [MD]), cerebral infarcts, and microbleeds in a biracial prospective cohort study. METHODS: Linear and logistic regression examined the relation between midlife high-sensitivity C-reactive protein (CRP)-a nonspecific marker of inflammation-and brain magnetic resonance imaging markers assessed 21 years later in the Atherosclerosis Risk in Communities Study...
November 3, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29100059/enlarged-perivascular-spaces-in-the-basal-ganglia-are-independently-associated-with-intracranial-atherosclerosis-in-the-elderly
#17
Oscar H Del Brutto, Robertino M Mera
BACKGROUND AND AIMS: Enlarged basal ganglia perivascular spaces (BG-PVS) are a marker of cerebral small vessel disease (SVD). The association between enlarged BG-PVS and atherosclerosis has been explored, but knowledge is limited to extracranial vessels. We aimed to assess whether enlarged BG-PVS correlate with carotid siphon calcifications (CSC), used as a surrogate of intracranial atherosclerosis. METHODS: Atahualpa residents aged ≥60 years underwent head computed tomography (CT) for assessment of CSC, and brain magnetic resonance imaging (MRI) for evaluation of BG-PVS and other imaging markers of SVD...
October 20, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29097299/the-study-of-neurocognitive-outcomes-radiological-and-retinal-effects-of-aspirin-in-sleep-apnoea-rationale-and-methodology-of-the-snore-asa-study
#18
Stephanie Alison Ward, Elsdon Storey, Robyn L Woods, Garun S Hamilton, Ryo Kawasaki, Andrew L Janke, Matthew T Naughton, Fergal J O'Donoghue, Rory Wolfe, Tien Y Wong, Christopher M Reid, Walter P Abhayaratna, Nigel Stocks, Ruth Trevaks, Sharyn Fitzgerald, Lauren A B Hodgson, Liubov Robman, Barbara Workman, John J McNeil
PURPOSE: Sleep disordered breathing (SDB) is highly prevalent in older adults. Increasing evidence links SDB to the risk of dementia, mediated via a number of pathways, some of which may be attenuated by low-dose aspirin. This study will evaluate, in a healthy older cohort, the prospective relationship between SDB and cognitive function, changes in retinal and cerebral microvasculature, and determine whether low-dose aspirin ameliorates the effects of SDB on these outcomes over 3years...
October 30, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29084064/new-insights-into-cerebral-small-vessel-disease-and-vascular-cognitive-impairment-from-mri
#19
Eric E Smith, Andrew E Beaudin
PURPOSE OF REVIEW: We review recent MRI research that addresses two important challenges in cerebral small vessel disease (SVD) research: early diagnosis, and linking SVD with cognitive impairment. First, we review studies of MRI measurements of blood flow and blood-brain barrier integrity. Second, we review MRI studies identifying neuroimaging correlates of SVD-related cognitive dysfunction, focusing on brain connectivity and white matter microarchitecture. This research is placed in context through discussion of recent recommendations for management of incidentally discovered SVD, and neuroimaging biomarker use in clinical trials...
October 27, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29070668/evolution-of-dwi-lesions-in-cerebral-amyloid-angiopathy-evidence-for-ischemia
#20
Susanne J van Veluw, Arne Lauer, Andreas Charidimou, Narimene Bounemia, Li Xiong, Gregoire Boulouis, Panagiotis Fotiadis, Alison Ayres, M Edip Gurol, Anand Viswanathan, Steven M Greenberg, Meike W Vernooij
OBJECTIVE: To address the pathophysiologic nature of small diffusion-weighted imaging (DWI) lesions in patients with cerebral amyloid angiopathy (CAA) who underwent serial MRI. Specifically, we tested (1) whether DWI lesions occurred preferentially in individuals with prior DWI lesions, (2) the cross-sectional association with chronic cortical cerebral microinfarcts (CMIs), and (3) the evolution of DWI lesions over time. METHODS: Patients with probable CAA (n = 79) who underwent at least 2 MRI sessions were included...
October 25, 2017: Neurology
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