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https://www.readbyqxmd.com/read/28436693/expression-of-circulating-mir-17-92-cluster-and-hdac9-gene-in-atherosclerotic-patients-with-unstable-and-stable-carotid-plaques
#1
Silvia Ferronato, Aldo Mombello, Ilaria Posenato, Paola Candiani, Alberto Scuro, Carlo Setacci, Macarena Gomez-Lira
AIMS: The miR-17-92 cluster and HDAC9 gene are involved in inflammatory, apoptotic, and angiogenic processes that are activated in the vulnerable carotid plaque. The aim of this research was to determine whether expression of one or more of the miRs of the cluster and/or HDAC9 expression could represent biomarkers for patients with unstable atherosclerotic carotid plaques. MATERIALS AND METHODS: Plasma levels of miRs and HDAC9 expression in peripheral blood were analyzed by real-time PCR in patients with histologically classified stable or unstable plaques...
April 24, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28432519/carotid-plaque-with-expansive-arterial-remodeling-is-a-risk-factor-for-ischemic-complication-following-carotid-artery-stenting
#2
Daina Kashiwazaki, Naoya Kuwayama, Naoki Akioka, Kyo Noguchi, Satoshi Kuroda
BACKGROUND: Carotid artery stenting (CAS) is associated with a higher risk of periprocedural stroke than carotid endarterectomy. For better patient selection, more accurate risk factors should be identified. The aim of this study was to determine whether expansive arterial remodeling can predict ischemic complications in patients undergoing CAS. METHODS: This retrospective study included 82 patients with carotid stenosis treated by CAS. The plaque component was evaluated using MR plaque imaging before the procedure...
April 21, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28430614/features-and-risk-factors-of-carotid-atherosclerosis-in-a-population-with-high-stroke-incidence-in-china
#3
Yanqiu Zhang, Lingling Bai, Min Shi, Hongyan Lu, Yanan Wu, Jun Tu, Jingxian Ni, Jinghua Wang, Li Cao, Ping Lei, Xianjia Ning
Epidemiological studies have reported associations between traditional cardiovascular risk factors and carotid intima-media thickness (CIMT) or carotid plaque. However, definite risk factors at different phases of carotid atherosclerosis remain controversial. We aimed to explore risk factors and characteristics of carotid atherosclerosis at different stages in a low-income population with a high incidence of stroke in China. Between April 2014 and January 2015, we recruited 3789 stroke-free and cardiovascular disease-free residents aged ≥ 45 years...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429599/lipoprotein-associated-phospholipase-a2-and-risk-of-carotid-atherosclerosis-and-cardiovascular-events-in-community-based-older-adults-in-china
#4
Chunxiu Wang, Xianghua Fang, Yang Hua, Yutong Liu, Zhongying Zhang, Xiang Gu, Xiaoguang Wu, Zhe Tang, Shaochen Guan, Hongjun Liu, Beibei Liu, Xiuhai Guo, Xunming Ji
We explored the associations between lipoprotein-associated phospholipase A2 (Lp-PLA2) level and carotid atherosclerosis with all phenotypes and cardiovascular disease (CVD) events in Chinese older adults. A total of 1257 adults aged ≥55 years who were free of CVD were enrolled in this cohort study. Lipoprotein-associated phospholipase A2 level was evaluated in 3 categories: Lp-PLA2 < 175, 175≤ Lp-PLA2 < 223, and Lp-PLA2 ≥ 223 ng/mL. The highest level of Lp-PLA2 was independently associated with common carotid artery intima-media thickening (≥1...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28429349/association-between-the-severity-of-newly-diagnosed-obstructive-sleep-apnea-and-subclinical-carotid-atherosclerosis-in-patients-without-overt-cardiovascular-disease
#5
K Theodoropoulos, D Lykouras, K Karkoulias, D Damania, K Leou, O Lagiou, O A Meelu, A Rigopoulou, G D Dangas, G Hahalis, K Spiropoulos, I Starakis
OBJECTIVE: Obstructive Sleep Apnea (OSA) has been associated with both subclinical and accelerated atherosclerosis; however, it still remains unknown whether this association is unique or is mediated by the higher burden of co-existing cardio-metabolic disorders frequently seen in patients with OSA. PATIENTS AND METHODS: A total of 40 subjects without clinically diagnosed cardiovascular disease (CVD) referred for polysomnography test were included in the study. Subjects with apnea/hypopnea index (AHI > 15/h) were classified as moderate/severe OSA...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428204/flow-perturbation-mediates-neutrophil-recruitment-and-potentiates-endothelial-injury-via-tlr2-in-mice-implications-for-superficial-erosion
#6
Grégory Franck, Thomas Mawson, Grasiele Sausen, Manuel Salinas, Gustavo Santos Masson, Andrew P Cole, Marina Beltrami Moreira, Yiannis Chatzizisis, Thibaut Quillard, Yevgenia Tesmenitsky, Eugenia Shvartz, Galina K Sukhova, Filip K Swirski, Matthias Nahrendorf, Elena Aikawa, Kevin Croce, Peter Libby
Rationale: Superficial erosion currently causes up to a third of acute coronary syndromes (ACS), yet we lack understanding of its mechanisms. Thrombi due to superficial intimal erosion characteristically complicate matrix-rich atheromata in regions of flow perturbation. Objective: This study tested in vivo the involvement of disturbed flow, and of neutrophils, hyaluronan, and TLR2 ligation in superficial intimal injury, a process implicated in superficial erosion. Methods and Results: In mouse carotid arteries with established intimal lesions tailored to resemble the substrate of human eroded plaques, acute flow perturbation promoted downstream endothelial cell (EC) activation, neutrophil accumulation, EC death and desquamation, and mural thrombosis...
April 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/28427600/carotid-artery-stenting-investigation-of-plaque-protrusion-incidence-and-prognosis
#7
Masashi Kotsugi, Katsutoshi Takayama, Kaoru Myouchin, Takeshi Wada, Ichiro Nakagawa, Hiroyuki Nakagawa, Toshiaki Taoka, Shinichiro Kurokawa, Hiroyuki Nakase, Kimihiko Kichikawa
OBJECTIVES: This study sought to clarify the incidence and prognosis of PP in carotid artery stenting (CAS). BACKGROUND: Projections thought to be plaque may be observed inside the stent on angiography or intravascular ultrasound (IVUS) during CAS. Known as plaque protrusion (PP), the incidence and prognosis of this complication are unclear. METHODS: A total of 354 consecutive carotid atherosclerotic stenoses in 328 patients (285 men, 43 women; age range 51 to 97 years [mean age 73...
April 24, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28420817/association-of-kidney-dysfunction-with-asymptomatic-cerebrovascular-abnormalities-in-a-japanese-population-with-health-checkups
#8
Kaori Hayashi, Michiyo Takayama, Takeshi Kanda, Kazuhiro Kashiwagi, Akihito Hishikawa, Yasushi Iwao, Hiroshi Itoh
BACKGROUND: Cerebrovascular disease is a major cause of mortality and morbidity. Chronic kidney disease (CKD) is prevalent in stroke patients. This study evaluated the correlation between kidney dysfunction and asymptomatic findings on carotid ultrasonography (US) and brain magnetic resonance imaging (MRI) in a Japanese population with health checkups.Methods and Results:In total, 1,716 subjects aged 40-80 years, who received health checkups from January 1 to December 31, 2015, were included...
April 14, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28415614/connexin40-controls-endothelial-activation-by-dampening-nfkb-activation
#9
Jean-Francois Denis, Ke Ludwig Scheckenbach, Anna Pfenniger, Merlijn J Meens, Rob Krams, Lucile Miquerol, Steven Taffet, Marc Chanson, Mario Delmar, Brenda R Kwak
Connexins are proteins forming gap junction channels for intercellular communication. Connexin40 (Cx40) is highly expressed by endothelial cells (ECs) of healthy arteries but this expression is lost in ECs overlying atherosclerotic plaques. Low/oscillatory shear stress observed in bends and bifurcations of arteries is atherogenic partly through activation of the pro-inflammatory NFκB pathway in ECs. In this study, we investigated the relation between shear stress, Cx40 and NFκB. Shear stress-modifying casts were placed around carotid arteries of mice expressing eGFP under the Cx40 promoter (Cx40+/eGFP)...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414714/excess-atherosclerosis-in-systemic-lupus-erythematosus-a-matter-of-renal-involvement-case-control-study-of-281-sle-patients-and-281-individually-matched-population-controls
#10
Johanna T Gustafsson, Marie Herlitz Lindberg, Iva Gunnarsson, Susanne Pettersson, Kerstin Elvin, John Öhrvik, Anders Larsson, Kerstin Jensen-Urstad, Elisabet Svenungsson
BACKGROUND: Systemic lupus erythematosus (SLE), is a heterogeneous disease which predominantly affects young females (90%). SLE is associated with a shorter life expectancy than in the general population. Standardized mortality ratios (SMR) of 2.4 have been reported, which is comparable to diabetes. In modern societies cardiovascular disease (CVD) is the major cause of premature mortality. Accelerated atherosclerosis is generally assumed to be the underlying cause for SLE related CVD...
2017: PloS One
https://www.readbyqxmd.com/read/28413549/challenges-in-a-case-of-ophthalmic-artery-aneurysm-associated-with-abnormal-internal-carotid-arteries
#11
Eduard B Dinca, Felix Brehar, Andrei Giovani, Alexandru V Ciurea
Ophthalmic artery aneurysms account for 5% of all cerebral aneurysms and are an important cause of morbidity and mortality related to subarachnoid hemorrhage. The diagnosis is often made only when the aneurysm is large enough to become symptomatic. They remain technically challenging for both neurosurgeon and interventional radiologist. We present the case of a 62-year-old woman admitted for transient loss of consciousness, followed by generalized tonic-clonic seizures. Computed tomography (CT) showed a subarachnoid hemorrhage (SAH), clinically graded as Hunt and Hess III...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28412430/incremental-prognostic-value-of-stress-echocardiography-with-carotid-ultrasound-for-suspected-cad
#12
Shahram Ahmadvazir, Benoy N Shah, Konstantinos Zacharias, Roxy Senior
OBJECTIVES: This study hypothesized that ischemia and atherosclerosis assessment by ultrasound (US) may provide incremental prognostic information in patients with new-onset chest pain who do not have coronary artery disease (CAD). BACKGROUND: The clinical significance of atherosclerosis assessment by carotid US in patients undergoing stress echocardiography (SE) in such patients is unknown. METHODS: Consecutive patients with suspected angina but no history of CAD underwent simultaneous SE and US prospectively to assess myocardial ischemia and carotid plaque burden (CPB), respectively...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412422/risk-factors-for-development-of-carotid%C3%A2-plaque-components
#13
EDITORIAL
Xue-Qiao Zhao, Thomas S Hatsukami
No abstract text is available yet for this article.
April 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412421/change-in-carotid-plaque-components-a-4-year-follow-up-study-with-serial-mr-imaging
#14
Laura Pletsch-Borba, Mariana Selwaness, Aad van der Lugt, Albert Hofman, Oscar H Franco, Meike W Vernooij
OBJECTIVES: The goal of this study was to determine how carotid plaque components (e.g., intraplaque hemorrhage [IPH], calcification, lipid core) change over time and which cardiovascular risk factors are associated with the development of each component. BACKGROUND: Carotid atherosclerotic plaque components are important markers of plaque vulnerability. How these components change and which factors lead to the development and changes in the components remain unclear...
April 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28411037/carotid-plaque-evaluation-using-gemstone-spectral-imaging-comparison-with-magnetic-resonance-angiography
#15
Yuki Shinohara, Makoto Sakamoto, Keita Kuya, Junichi Kishimoto, Eijiro Yamashita, Shinya Fujii, Masamichi Kurosaki, Toshihide Ogawa
BACKGROUND: The present study compared the applicability of computed tomography carotid plaque imaging using effective Z maps with gemstone spectral imaging (GSI) to that of magnetic resonance plaque imaging using 3-dimensional time-of-flight magnetic resonance angiography. METHODS: Stenosis was assessed in 18 carotid arteries of 14 patients, and the effective Z values of noncalcified carotid plaques were compared with the signal intensities of magnetic resonance angiography...
April 11, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28408371/leukocyte-overexpression-of-intracellular-nampt-attenuates-atherosclerosis-by-regulating-ppar%C3%AE-dependent-monocyte-differentiation-and-function
#16
Beatriz Bermudez, Tuva B Dahl, Indira Medina, Mathijs Groeneweg, Sverre Holm, Sergio Montserrat-de la Paz, Mat Rousch, Jeroen J T Otten, Veronica Herias, Lourdes M Varela, Trine Ranheim, Arne Yndestad, Almudena Ortega-Gomez, Rocio Abia, Laszlo Nagy, Pal Aukrust, Francisco J G Muriana, Bente Halvorsen, Erik A L Biessen
OBJECTIVE: Extracellular nicotinamide phosphoribosyltransferase (eNAMPT) mediates inflammatory and potentially proatherogenic effects, whereas the role of intracellular NAMPT (iNAMPT), the rate limiting enzyme in the salvage pathway of nicotinamide adenine dinucleotide (NAD)(+) generation, in atherogenesis is largely unknown. Here we investigated the effects of iNAMPT overexpression in leukocytes on inflammation and atherosclerosis. APPROACH AND RESULTS: Low-density lipoprotein receptor-deficient mice with hematopoietic overexpression of human iNAMPT (iNAMPT(hi)), on a western type diet, showed attenuated plaque burden with features of lesion stabilization...
April 13, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28406244/cortistatin-reduces-atherosclerosis-in-hyperlipidemic-apoe-deficient-mice-and-the-formation-of-foam-cells
#17
Virginia Delgado-Maroto, Raquel Benitez, Irene Forte-Lago, Maria Morell, Elena Maganto-Garcia, Luciana Souza-Moreira, Francisco O'Valle, Mario Duran-Prado, Andrew H Lichtman, Elena Gonzalez-Rey, Mario Delgado
Atherosclerosis is a chronic inflammatory cardiovascular disease that is responsible of high mortality worldwide. Evidence indicates that maladaptive autoimmune responses in the arterial wall play critical roles in the process of atherosclerosis. Cortistatin is a neuropeptide expressed in the vascular system and atherosclerotic plaques that regulates vascular calcification and neointimal formation, and inhibits inflammation in different experimental models of autoimmune diseases. Its role in inflammatory cardiovascular disorders is largely unexplored...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28402079/inverse-association-between-size-of-the-lipid-rich-necrotic-core-and-vascularization-in-human-carotid-plaques
#18
Ola Hjelmgren, Lars Johansson, Ulrica Prahl, Caroline Schmidt, Göran M L Bergström
PURPOSE: To study the relationship between the size of the lipid-rich necrotic core measured by MRI (magnetic resonance imaging) and the level of plaque vascularization measured by contrast-enhanced ultrasound, in human carotid plaques. Further, to compare the size of lipid-rich necrotic core from MRI to plaque echogenicity. METHODS: Thirty-one subjects with carotid plaques underwent standard B-mode ultrasound, contrast-enhanced ultrasound and MRI. The lipid-rich necrotic core was quantified using MRI...
April 12, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28400572/imaging-atherosclerosis-in-rheumatoid-arthritis-evidence-for-increased-prevalence-altered-phenotype-and-a-link-between-systemic-and-localised-plaque-inflammation
#19
S Skeoch, P L Hubbard Cristinacce, H Williams, P Pemberton, D Xu, J Sun, J James, C Yuan, T Hatsukami, P D Hockings, M Y Alexander, J C Waterton, I N Bruce
In rheumatoid arthritis (RA), chronic inflammation is thought to drive increased cardiovascular risk through accelerated atherosclerosis. It may also lead to a more high-risk plaque phenotype. We sought to investigate carotid plaque phenotype in RA patients using Dynamic Contrast-Enhanced MRI (DCE-MRI) and Fludeoxyglucose Positron Emission Tomography(FDG-PET). In this pilot study, RA patients and age/sex-matched controls were evaluated for cardiovascular risk factors and carotid plaque on ultrasound. Subjects with plaque >2 mm thick underwent DCE-MRI, and a subgroup of patients had FDG-PET...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28400487/vascular-anatomy-predicts-the-risk-of-cerebral-ischemia-in-patients-randomized-to-carotid-stenting-versus-endarterectomy
#20
Mandy D Müller, Frank J Ahlhelm, Alexander von Hessling, David Doig, Paul J Nederkoorn, Sumaira Macdonald, Philippe A Lyrer, Aad van der Lugt, Jeroen Hendrikse, Christoph Stippich, H Bart van der Worp, Toby Richards, Martin M Brown, Stefan T Engelter, Leo H Bonati
BACKGROUND AND PURPOSE: Complex vascular anatomy might increase the risk of procedural stroke during carotid artery stenting (CAS). Randomized controlled trial evidence that vascular anatomy should inform the choice between CAS and carotid endarterectomy (CEA) has been lacking. METHODS: One-hundred eighty-four patients with symptomatic internal carotid artery stenosis who were randomly assigned to CAS or CEA in the ICSS (International Carotid Stenting Study) underwent magnetic resonance (n=126) or computed tomographic angiography (n=58) at baseline and brain magnetic resonance imaging before and after treatment...
April 11, 2017: Stroke; a Journal of Cerebral Circulation
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